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提交 5928bc3c 编写于 作者: T twisti
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6961690: load oops from constant table on SPARC 

Summary: oops should be loaded from the constant table of an nmethod instead of materializing them with a long code sequence.
Reviewed-by: never, kvn
上级 b2f75e8c
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Showing with 1793 addition and 828 deletion
src/cpu/sparc/vm/assembler_sparc.cpp
浏览文件 @ 5928bc3c
......@@ -1443,6 +1443,45 @@ void MacroAssembler::set64(jlong value, Register d, Register tmp) {
}
}
int MacroAssembler::size_of_set64(jlong value) {
v9_dep();
int hi = (int)(value >> 32);
int lo = (int)(value & ~0);
int count = 0;
// (Matcher::isSimpleConstant64 knows about the following optimizations.)
if (Assembler::is_simm13(lo) && value == lo) {
count++;
} else if (hi == 0) {
count++;
if (low10(lo) != 0)
count++;
}
else if (hi == -1) {
count += 2;
}
else if (lo == 0) {
if (Assembler::is_simm13(hi)) {
count++;
} else {
count++;
if (low10(hi) != 0)
count++;
}
count++;
}
else {
count += 2;
if (low10(hi) != 0)
count++;
if (low10(lo) != 0)
count++;
count += 2;
}
return count;
}
// compute size in bytes of sparc frame, given
// number of extraWords
int MacroAssembler::total_frame_size_in_bytes(int extraWords) {
......
src/cpu/sparc/vm/assembler_sparc.hpp
浏览文件 @ 5928bc3c
......@@ -1621,6 +1621,10 @@ public:
void sub( Register s1, Register s2, Register d ) { emit_long( op(arith_op) | rd(d) | op3(sub_op3 ) | rs1(s1) | rs2(s2) ); }
void sub( Register s1, int simm13a, Register d ) { emit_long( op(arith_op) | rd(d) | op3(sub_op3 ) | rs1(s1) | immed(true) | simm(simm13a, 13) ); }
// Note: offset is added to s2.
inline void sub(Register s1, RegisterOrConstant s2, Register d, int offset = 0);
void subcc( Register s1, Register s2, Register d ) { emit_long( op(arith_op) | rd(d) | op3(sub_op3 | cc_bit_op3 ) | rs1(s1) | rs2(s2) ); }
void subcc( Register s1, int simm13a, Register d ) { emit_long( op(arith_op) | rd(d) | op3(sub_op3 | cc_bit_op3 ) | rs1(s1) | immed(true) | simm(simm13a, 13) ); }
void subc( Register s1, Register s2, Register d ) { emit_long( op(arith_op) | rd(d) | op3(subc_op3 ) | rs1(s1) | rs2(s2) ); }
......@@ -1895,6 +1899,9 @@ public:
void patchable_set(intptr_t value, Register d);
void set64(jlong value, Register d, Register tmp);
// Compute size of set64.
static int size_of_set64(jlong value);
// sign-extend 32 to 64
inline void signx( Register s, Register d ) { sra( s, G0, d); }
inline void signx( Register d ) { sra( d, G0, d); }
......
src/cpu/sparc/vm/assembler_sparc.inline.hpp
浏览文件 @ 5928bc3c
......@@ -328,6 +328,11 @@ inline void Assembler::stcsr( int crd, Register s1, int simm13a) { v8_only();
inline void Assembler::stdcq( int crd, Register s1, Register s2) { v8_only(); emit_long( op(ldst_op) | fcn(crd) | op3(stdcq_op3) | rs1(s1) | rs2(s2) ); }
inline void Assembler::stdcq( int crd, Register s1, int simm13a) { v8_only(); emit_data( op(ldst_op) | fcn(crd) | op3(stdcq_op3) | rs1(s1) | immed(true) | simm(simm13a, 13)); }
inline void Assembler::sub(Register s1, RegisterOrConstant s2, Register d, int offset) {
if (s2.is_register()) sub(s1, s2.as_register(), d);
else { sub(s1, s2.as_constant() + offset, d); offset = 0; }
if (offset != 0) sub(d, offset, d);
}
// pp 231
......
src/cpu/sparc/vm/sparc.ad
浏览文件 @ 5928bc3c
......@@ -667,6 +667,20 @@ intptr_t get_offset_from_base_2(const MachNode* n, const TypePtr* atype, int dis
return offset;
}
static inline jdouble replicate_immI(int con, int count, int width) {
// Load a constant replicated "count" times with width "width"
int bit_width = width * 8;
jlong elt_val = con;
elt_val &= (((jlong) 1) << bit_width) - 1; // mask off sign bits
jlong val = elt_val;
for (int i = 0; i < count - 1; i++) {
val <<= bit_width;
val |= elt_val;
}
jdouble dval = *((jdouble*) &val); // coerce to double type
return dval;
}
// Standard Sparc opcode form2 field breakdown
static inline void emit2_19(CodeBuffer &cbuf, int f30, int f29, int f25, int f22, int f20, int f19, int f0 ) {
f0 &= (1<<19)-1; // Mask displacement to 19 bits
......@@ -1007,6 +1021,90 @@ void emit_lo(CodeBuffer &cbuf, int val) { }
void emit_hi(CodeBuffer &cbuf, int val) { }
//=============================================================================
const bool Matcher::constant_table_absolute_addressing = false;
const RegMask& MachConstantBaseNode::_out_RegMask = PTR_REG_mask;
void MachConstantBaseNode::emit(CodeBuffer& cbuf, PhaseRegAlloc* ra_) const {
Compile* C = ra_->C;
Compile::ConstantTable& constant_table = C->constant_table();
MacroAssembler _masm(&cbuf);
Register r = as_Register(ra_->get_encode(this));
CodeSection* cs = __ code()->consts();
int consts_size = cs->align_at_start(cs->size());
if (UseRDPCForConstantTableBase) {
// For the following RDPC logic to work correctly the consts
// section must be allocated right before the insts section. This
// assert checks for that. The layout and the SECT_* constants
// are defined in src/share/vm/asm/codeBuffer.hpp.
assert(CodeBuffer::SECT_CONSTS + 1 == CodeBuffer::SECT_INSTS, "must be");
int offset = __ offset();
int disp;
// If the displacement from the current PC to the constant table
// base fits into simm13 we set the constant table base to the
// current PC.
if (__ is_simm13(-(consts_size + offset))) {
constant_table.set_table_base_offset(-(consts_size + offset));
disp = 0;
} else {
// If the offset of the top constant (last entry in the table)
// fits into simm13 we set the constant table base to the actual
// table base.
if (__ is_simm13(constant_table.top_offset())) {
constant_table.set_table_base_offset(0);
disp = consts_size + offset;
} else {
// Otherwise we set the constant table base in the middle of the
// constant table.
int half_consts_size = consts_size / 2;
assert(half_consts_size * 2 == consts_size, "sanity");
constant_table.set_table_base_offset(-half_consts_size); // table base offset gets added to the load displacement.
disp = half_consts_size + offset;
}
}
__ rdpc(r);
if (disp != 0) {
assert(r != O7, "need temporary");
__ sub(r, __ ensure_simm13_or_reg(disp, O7), r);
}
}
else {
// Materialize the constant table base.
assert(constant_table.size() == consts_size, err_msg("must be: %d == %d", constant_table.size(), consts_size));
address baseaddr = cs->start() + -(constant_table.table_base_offset());
RelocationHolder rspec = internal_word_Relocation::spec(baseaddr);
AddressLiteral base(baseaddr, rspec);
__ set(base, r);
}
}
uint MachConstantBaseNode::size(PhaseRegAlloc*) const {
if (UseRDPCForConstantTableBase) {
// This is really the worst case but generally it's only 1 instruction.
return 4 /*rdpc*/ + 4 /*sub*/ + MacroAssembler::worst_case_size_of_set();
} else {
return MacroAssembler::worst_case_size_of_set();
}
}
#ifndef PRODUCT
void MachConstantBaseNode::format(PhaseRegAlloc* ra_, outputStream* st) const {
char reg[128];
ra_->dump_register(this, reg);
if (UseRDPCForConstantTableBase) {
st->print("RDPC %s\t! constant table base", reg);
} else {
st->print("SET &constanttable,%s\t! constant table base", reg);
}
}
#endif
//=============================================================================
#ifndef PRODUCT
......@@ -2247,25 +2345,6 @@ encode %{
__ delayed()->nop();
%}
enc_class jump_enc( iRegX switch_val, o7RegI table) %{
MacroAssembler _masm(&cbuf);
Register switch_reg = as_Register($switch_val$$reg);
Register table_reg = O7;
address table_base = __ address_table_constant(_index2label);
RelocationHolder rspec = internal_word_Relocation::spec(table_base);
// Move table address into a register.
__ set(table_base, table_reg, rspec);
// Jump to base address + switch value
__ ld_ptr(table_reg, switch_reg, table_reg);
__ jmp(table_reg, G0);
__ delayed()->nop();
%}
enc_class enc_ba( Label labl ) %{
MacroAssembler _masm(&cbuf);
Label &L = *($labl$$label);
......@@ -2384,20 +2463,6 @@ encode %{
cbuf.insts()->emit_int32(op);
%}
// Utility encoding for loading a 64 bit Pointer into a register
// The 64 bit pointer is stored in the generated code stream
enc_class SetPtr( immP src, iRegP rd ) %{
Register dest = reg_to_register_object($rd$$reg);
MacroAssembler _masm(&cbuf);
// [RGV] This next line should be generated from ADLC
if ( _opnds[1]->constant_is_oop() ) {
intptr_t val = $src$$constant;
__ set_oop_constant((jobject)val, dest);
} else { // non-oop pointers, e.g. card mark base, heap top
__ set($src$$constant, dest);
}
%}
enc_class Set13( immI13 src, iRegI rd ) %{
emit3_simm13( cbuf, Assembler::arith_op, $rd$$reg, Assembler::or_op3, 0, $src$$constant );
%}
......@@ -2411,10 +2476,6 @@ encode %{
__ set($src$$constant, reg_to_register_object($rd$$reg));
%}
enc_class SetNull( iRegI rd ) %{
emit3_simm13( cbuf, Assembler::arith_op, $rd$$reg, Assembler::or_op3, 0, 0 );
%}
enc_class call_epilog %{
if( VerifyStackAtCalls ) {
MacroAssembler _masm(&cbuf);
......@@ -2778,35 +2839,6 @@ enc_class Fast_Unlock(iRegP oop, iRegP box, o7RegP scratch, iRegP scratch2) %{
__ float_cmp( $primary, -1, Fsrc1, Fsrc2, Rdst);
%}
enc_class LdImmL (immL src, iRegL dst, o7RegL tmp) %{ // Load Immediate
MacroAssembler _masm(&cbuf);
Register dest = reg_to_register_object($dst$$reg);
Register temp = reg_to_register_object($tmp$$reg);
__ set64( $src$$constant, dest, temp );
%}
enc_class LdReplImmI(immI src, regD dst, o7RegP tmp, int count, int width) %{
// Load a constant replicated "count" times with width "width"
int bit_width = $width$$constant * 8;
jlong elt_val = $src$$constant;
elt_val &= (((jlong)1) << bit_width) - 1; // mask off sign bits
jlong val = elt_val;
for (int i = 0; i < $count$$constant - 1; i++) {
val <<= bit_width;
val |= elt_val;
}
jdouble dval = *(jdouble*)&val; // coerce to double type
MacroAssembler _masm(&cbuf);
address double_address = __ double_constant(dval);
RelocationHolder rspec = internal_word_Relocation::spec(double_address);
AddressLiteral addrlit(double_address, rspec);
__ sethi(addrlit, $tmp$$Register);
// XXX This is a quick fix for 6833573.
//__ ldf(FloatRegisterImpl::D, $tmp$$Register, addrlit.low10(), $dst$$FloatRegister, rspec);
__ ldf(FloatRegisterImpl::D, $tmp$$Register, addrlit.low10(), as_DoubleFloatRegister($dst$$reg), rspec);
%}
// Compiler ensures base is doubleword aligned and cnt is count of doublewords
enc_class enc_Clear_Array(iRegX cnt, iRegP base, iRegX temp) %{
MacroAssembler _masm(&cbuf);
......@@ -3521,6 +3553,29 @@ operand immP() %{
interface(CONST_INTER);
%}
// Pointer Immediate: 32 or 64-bit
operand immP_set() %{
predicate(!VM_Version::is_niagara1_plus());
match(ConP);
op_cost(5);
// formats are generated automatically for constants and base registers
format %{ %}
interface(CONST_INTER);
%}
// Pointer Immediate: 32 or 64-bit
// From Niagara2 processors on a load should be better than materializing.
operand immP_load() %{
predicate(VM_Version::is_niagara1_plus());
match(ConP);
op_cost(5);
// formats are generated automatically for constants and base registers
format %{ %}
interface(CONST_INTER);
%}
operand immP13() %{
predicate((-4096 < n->get_ptr()) && (n->get_ptr() <= 4095));
match(ConP);
......@@ -3616,6 +3671,26 @@ operand immL_32bits() %{
interface(CONST_INTER);
%}
// Long Immediate: cheap (materialize in <= 3 instructions)
operand immL_cheap() %{
predicate(!VM_Version::is_niagara1_plus() || MacroAssembler::size_of_set64(n->get_long()) <= 3);
match(ConL);
op_cost(0);
format %{ %}
interface(CONST_INTER);
%}
// Long Immediate: expensive (materialize in > 3 instructions)
operand immL_expensive() %{
predicate(VM_Version::is_niagara1_plus() && MacroAssembler::size_of_set64(n->get_long()) > 3);
match(ConL);
op_cost(0);
format %{ %}
interface(CONST_INTER);
%}
// Double Immediate
operand immD() %{
match(ConD);
......@@ -5981,25 +6056,58 @@ instruct loadConI13( iRegI dst, immI13 src ) %{
ins_pipe(ialu_imm);
%}
instruct loadConP(iRegP dst, immP src) %{
match(Set dst src);
#ifndef _LP64
instruct loadConP(iRegP dst, immP con) %{
match(Set dst con);
ins_cost(DEFAULT_COST * 3/2);
format %{ "SET $src,$dst\t!ptr" %}
// This rule does not use "expand" unlike loadConI because then
// the result type is not known to be an Oop. An ADLC
// enhancement will be needed to make that work - not worth it!
ins_encode( SetPtr( src, dst ) );
format %{ "SET $con,$dst\t!ptr" %}
ins_encode %{
// [RGV] This next line should be generated from ADLC
if (_opnds[1]->constant_is_oop()) {
intptr_t val = $con$$constant;
__ set_oop_constant((jobject) val, $dst$$Register);
} else { // non-oop pointers, e.g. card mark base, heap top
__ set($con$$constant, $dst$$Register);
}
%}
ins_pipe(loadConP);
%}
#else
instruct loadConP_set(iRegP dst, immP_set con) %{
match(Set dst con);
ins_cost(DEFAULT_COST * 3/2);
format %{ "SET $con,$dst\t! ptr" %}
ins_encode %{
// [RGV] This next line should be generated from ADLC
if (_opnds[1]->constant_is_oop()) {
intptr_t val = $con$$constant;
__ set_oop_constant((jobject) val, $dst$$Register);
} else { // non-oop pointers, e.g. card mark base, heap top
__ set($con$$constant, $dst$$Register);
}
%}
ins_pipe(loadConP);
%}
instruct loadConP_load(iRegP dst, immP_load con) %{
match(Set dst con);
ins_cost(MEMORY_REF_COST);
format %{ "LD [$constanttablebase + $constantoffset],$dst\t! load from constant table: ptr=$con" %}
ins_encode %{
__ ld_ptr($constanttablebase, $constantoffset($con), $dst$$Register);
%}
ins_pipe(loadConP);
%}
#endif // _LP64
instruct loadConP0(iRegP dst, immP0 src) %{
match(Set dst src);
size(4);
format %{ "CLR $dst\t!ptr" %}
ins_encode( SetNull( dst ) );
ins_encode %{
__ clr($dst$$Register);
%}
ins_pipe(ialu_imm);
%}
......@@ -6019,7 +6127,9 @@ instruct loadConN0(iRegN dst, immN0 src) %{
size(4);
format %{ "CLR $dst\t! compressed NULL ptr" %}
ins_encode( SetNull( dst ) );
ins_encode %{
__ clr($dst$$Register);
%}
ins_pipe(ialu_imm);
%}
......@@ -6034,13 +6144,26 @@ instruct loadConN(iRegN dst, immN src) %{
ins_pipe(ialu_hi_lo_reg);
%}
instruct loadConL(iRegL dst, immL src, o7RegL tmp) %{
// %%% maybe this should work like loadConD
match(Set dst src);
// Materialize long value (predicated by immL_cheap).
instruct loadConL_set64(iRegL dst, immL_cheap con, o7RegL tmp) %{
match(Set dst con);
effect(KILL tmp);
ins_cost(DEFAULT_COST * 4);
format %{ "SET64 $src,$dst KILL $tmp\t! long" %}
ins_encode( LdImmL(src, dst, tmp) );
ins_cost(DEFAULT_COST * 3);
format %{ "SET64 $con,$dst KILL $tmp\t! cheap long" %}
ins_encode %{
__ set64($con$$constant, $dst$$Register, $tmp$$Register);
%}
ins_pipe(loadConL);
%}
// Load long value from constant table (predicated by immL_expensive).
instruct loadConL_ldx(iRegL dst, immL_expensive con) %{
match(Set dst con);
ins_cost(MEMORY_REF_COST);
format %{ "LDX [$constanttablebase + $constantoffset],$dst\t! load from constant table: long=$con" %}
ins_encode %{
__ ldx($constanttablebase, $constantoffset($con), $dst$$Register);
%}
ins_pipe(loadConL);
%}
......@@ -6063,50 +6186,24 @@ instruct loadConL13( iRegL dst, immL13 src ) %{
ins_pipe(ialu_imm);
%}
instruct loadConF(regF dst, immF src, o7RegP tmp) %{
match(Set dst src);
effect(KILL tmp);
#ifdef _LP64
size(8*4);
#else
size(2*4);
#endif
format %{ "SETHI hi(&$src),$tmp\t!get float $src from table\n\t"
"LDF [$tmp+lo(&$src)],$dst" %}
instruct loadConF(regF dst, immF con) %{
match(Set dst con);
size(4);
format %{ "LDF [$constanttablebase + $constantoffset],$dst\t! load from constant table: float=$con" %}
ins_encode %{
address float_address = __ float_constant($src$$constant);
RelocationHolder rspec = internal_word_Relocation::spec(float_address);
AddressLiteral addrlit(float_address, rspec);
__ sethi(addrlit, $tmp$$Register);
__ ldf(FloatRegisterImpl::S, $tmp$$Register, addrlit.low10(), $dst$$FloatRegister, rspec);
__ ldf(FloatRegisterImpl::S, $constanttablebase, $constantoffset($con), $dst$$FloatRegister);
%}
ins_pipe(loadConFD);
%}
instruct loadConD(regD dst, immD src, o7RegP tmp) %{
match(Set dst src);
effect(KILL tmp);
#ifdef _LP64
size(8*4);
#else
size(2*4);
#endif
format %{ "SETHI hi(&$src),$tmp\t!get double $src from table\n\t"
"LDDF [$tmp+lo(&$src)],$dst" %}
instruct loadConD(regD dst, immD con) %{
match(Set dst con);
size(4);
format %{ "LDDF [$constanttablebase + $constantoffset],$dst\t! load from constant table: double=$con" %}
ins_encode %{
address double_address = __ double_constant($src$$constant);
RelocationHolder rspec = internal_word_Relocation::spec(double_address);
AddressLiteral addrlit(double_address, rspec);
__ sethi(addrlit, $tmp$$Register);
// XXX This is a quick fix for 6833573.
//__ ldf(FloatRegisterImpl::D, $tmp$$Register, addrlit.low10(), $dst$$FloatRegister, rspec);
__ ldf(FloatRegisterImpl::D, $tmp$$Register, addrlit.low10(), as_DoubleFloatRegister($dst$$reg), rspec);
//__ ldf(FloatRegisterImpl::D, $constanttablebase, $constantoffset($con), $dst$$FloatRegister);
__ ldf(FloatRegisterImpl::D, $constanttablebase, $constantoffset($con), as_DoubleFloatRegister($dst$$reg));
%}
ins_pipe(loadConFD);
%}
......@@ -8558,16 +8655,15 @@ instruct Repl8B_reg(stackSlotD dst, iRegI src) %{
%}
// Replicate scalar constant to packed byte values in Double register
instruct Repl8B_immI(regD dst, immI13 src, o7RegP tmp) %{
match(Set dst (Replicate8B src));
#ifdef _LP64
size(36);
#else
size(8);
#endif
format %{ "SETHI hi(&Repl8($src)),$tmp\t!get Repl8B($src) from table\n\t"
"LDDF [$tmp+lo(&Repl8($src))],$dst" %}
ins_encode( LdReplImmI(src, dst, tmp, (8), (1)) );
instruct Repl8B_immI(regD dst, immI13 con) %{
match(Set dst (Replicate8B con));
size(4);
format %{ "LDDF [$constanttablebase + $constantoffset],$dst\t! load from constant table: Repl8B($con)" %}
ins_encode %{
// XXX This is a quick fix for 6833573.
//__ ldf(FloatRegisterImpl::D, $constanttablebase, $constantoffset(replicate_immI($con$$constant, 8, 1)), $dst$$FloatRegister);
__ ldf(FloatRegisterImpl::D, $constanttablebase, $constantoffset(replicate_immI($con$$constant, 8, 1)), as_DoubleFloatRegister($dst$$reg));
%}
ins_pipe(loadConFD);
%}
......@@ -8594,16 +8690,15 @@ instruct Repl4C_reg(stackSlotD dst, iRegI src) %{
%}
// Replicate scalar constant to packed char values in Double register
instruct Repl4C_immI(regD dst, immI src, o7RegP tmp) %{
match(Set dst (Replicate4C src));
#ifdef _LP64
size(36);
#else
size(8);
#endif
format %{ "SETHI hi(&Repl4($src)),$tmp\t!get Repl4C($src) from table\n\t"
"LDDF [$tmp+lo(&Repl4($src))],$dst" %}
ins_encode( LdReplImmI(src, dst, tmp, (4), (2)) );
instruct Repl4C_immI(regD dst, immI con) %{
match(Set dst (Replicate4C con));
size(4);
format %{ "LDDF [$constanttablebase + $constantoffset],$dst\t! load from constant table: Repl4C($con)" %}
ins_encode %{
// XXX This is a quick fix for 6833573.
//__ ldf(FloatRegisterImpl::D, $constanttablebase, $constantoffset(replicate_immI($con$$constant, 4, 2)), $dst$$FloatRegister);
__ ldf(FloatRegisterImpl::D, $constanttablebase, $constantoffset(replicate_immI($con$$constant, 4, 2)), as_DoubleFloatRegister($dst$$reg));
%}
ins_pipe(loadConFD);
%}
......@@ -8630,16 +8725,15 @@ instruct Repl4S_reg(stackSlotD dst, iRegI src) %{
%}
// Replicate scalar constant to packed short values in Double register
instruct Repl4S_immI(regD dst, immI src, o7RegP tmp) %{
match(Set dst (Replicate4S src));
#ifdef _LP64
size(36);
#else
size(8);
#endif
format %{ "SETHI hi(&Repl4($src)),$tmp\t!get Repl4S($src) from table\n\t"
"LDDF [$tmp+lo(&Repl4($src))],$dst" %}
ins_encode( LdReplImmI(src, dst, tmp, (4), (2)) );
instruct Repl4S_immI(regD dst, immI con) %{
match(Set dst (Replicate4S con));
size(4);
format %{ "LDDF [$constanttablebase + $constantoffset],$dst\t! load from constant table: Repl4S($con)" %}
ins_encode %{
// XXX This is a quick fix for 6833573.
//__ ldf(FloatRegisterImpl::D, $constanttablebase, $constantoffset(replicate_immI($con$$constant, 4, 2)), $dst$$FloatRegister);
__ ldf(FloatRegisterImpl::D, $constanttablebase, $constantoffset(replicate_immI($con$$constant, 4, 2)), as_DoubleFloatRegister($dst$$reg));
%}
ins_pipe(loadConFD);
%}
......@@ -8664,16 +8758,15 @@ instruct Repl2I_reg(stackSlotD dst, iRegI src) %{
%}
// Replicate scalar zero constant to packed int values in Double register
instruct Repl2I_immI(regD dst, immI src, o7RegP tmp) %{
match(Set dst (Replicate2I src));
#ifdef _LP64
size(36);
#else
size(8);
#endif
format %{ "SETHI hi(&Repl2($src)),$tmp\t!get Repl2I($src) from table\n\t"
"LDDF [$tmp+lo(&Repl2($src))],$dst" %}
ins_encode( LdReplImmI(src, dst, tmp, (2), (4)) );
instruct Repl2I_immI(regD dst, immI con) %{
match(Set dst (Replicate2I con));
size(4);
format %{ "LDDF [$constanttablebase + $constantoffset],$dst\t! load from constant table: Repl2I($con)" %}
ins_encode %{
// XXX This is a quick fix for 6833573.
//__ ldf(FloatRegisterImpl::D, $constanttablebase, $constantoffset(replicate_immI($con$$constant, 2, 4)), $dst$$FloatRegister);
__ ldf(FloatRegisterImpl::D, $constanttablebase, $constantoffset(replicate_immI($con$$constant, 2, 4)), as_DoubleFloatRegister($dst$$reg));
%}
ins_pipe(loadConFD);
%}
......@@ -8929,12 +9022,26 @@ instruct jumpXtnd(iRegX switch_val, o7RegI table) %{
ins_cost(350);
format %{ "SETHI [hi(table_base)],O7\n\t"
"ADD O7, lo(table_base), O7\n\t"
"LD [O7+$switch_val], O7\n\t"
format %{ "ADD $constanttablebase, $constantoffset, O7\n\t"
"LD [O7 + $switch_val], O7\n\t"
"JUMP O7"
%}
ins_encode( jump_enc( switch_val, table) );
ins_encode %{
// Calculate table address into a register.
Register table_reg;
Register label_reg = O7;
if (constant_offset() == 0) {
table_reg = $constanttablebase;
} else {
table_reg = O7;
__ add($constanttablebase, $constantoffset, table_reg);
}
// Jump to base address + switch value
__ ld_ptr(table_reg, $switch_val$$Register, label_reg);
__ jmp(label_reg, G0);
__ delayed()->nop();
%}
ins_pc_relative(1);
ins_pipe(ialu_reg_reg);
%}
......
src/cpu/sparc/vm/vm_version_sparc.hpp
浏览文件 @ 5928bc3c
......@@ -80,9 +80,6 @@ protected:
static bool is_sparc64(int features) { return (features & fmaf_instructions_m) != 0; }
static int maximum_niagara1_processor_count() { return 32; }
// Returns true if the platform is in the niagara line and
// newer than the niagara1.
static bool is_niagara1_plus();
public:
// Initialization
......@@ -105,6 +102,9 @@ public:
static bool is_ultra3() { return (_features & ultra3_m) == ultra3_m; }
static bool is_sun4v() { return (_features & sun4v_m) != 0; }
static bool is_niagara1() { return is_niagara1(_features); }
// Returns true if the platform is in the niagara line and
// newer than the niagara1.
static bool is_niagara1_plus();
static bool is_sparc64() { return is_sparc64(_features); }
static bool has_fast_fxtof() { return has_v9() && !is_ultra3(); }
......
src/cpu/x86/vm/assembler_x86.cpp
浏览文件 @ 5928bc3c
......@@ -2649,6 +2649,37 @@ void Assembler::sqrtsd(XMMRegister dst, XMMRegister src) {
emit_byte(0xC0 | encode);
}
void Assembler::sqrtsd(XMMRegister dst, Address src) {
NOT_LP64(assert(VM_Version::supports_sse2(), ""));
InstructionMark im(this);
emit_byte(0xF2);
prefix(src, dst);
emit_byte(0x0F);
emit_byte(0x51);
emit_operand(dst, src);
}
void Assembler::sqrtss(XMMRegister dst, XMMRegister src) {
// HMM Table D-1 says sse2
// NOT_LP64(assert(VM_Version::supports_sse(), ""));
NOT_LP64(assert(VM_Version::supports_sse2(), ""));
emit_byte(0xF3);
int encode = prefix_and_encode(dst->encoding(), src->encoding());
emit_byte(0x0F);
emit_byte(0x51);
emit_byte(0xC0 | encode);
}
void Assembler::sqrtss(XMMRegister dst, Address src) {
NOT_LP64(assert(VM_Version::supports_sse2(), ""));
InstructionMark im(this);
emit_byte(0xF3);
prefix(src, dst);
emit_byte(0x0F);
emit_byte(0x51);
emit_operand(dst, src);
}
void Assembler::stmxcsr( Address dst) {
NOT_LP64(assert(VM_Version::supports_sse(), ""));
InstructionMark im(this);
......@@ -4358,16 +4389,6 @@ void Assembler::shrq(Register dst) {
emit_byte(0xE8 | encode);
}
void Assembler::sqrtsd(XMMRegister dst, Address src) {
NOT_LP64(assert(VM_Version::supports_sse2(), ""));
InstructionMark im(this);
emit_byte(0xF2);
prefix(src, dst);
emit_byte(0x0F);
emit_byte(0x51);
emit_operand(dst, src);
}
void Assembler::subq(Address dst, int32_t imm32) {
InstructionMark im(this);
prefixq(dst);
......@@ -4929,10 +4950,6 @@ void MacroAssembler::movptr(Address dst, intptr_t src) {
}
void MacroAssembler::movsd(XMMRegister dst, AddressLiteral src) {
movsd(dst, as_Address(src));
}
void MacroAssembler::pop_callee_saved_registers() {
pop(rcx);
pop(rdx);
......
src/cpu/x86/vm/assembler_x86.hpp
浏览文件 @ 5928bc3c
......@@ -1353,6 +1353,10 @@ private:
void sqrtsd(XMMRegister dst, Address src);
void sqrtsd(XMMRegister dst, XMMRegister src);
// Compute Square Root of Scalar Single-Precision Floating-Point Value
void sqrtss(XMMRegister dst, Address src);
void sqrtss(XMMRegister dst, XMMRegister src);
void std() { emit_byte(0xfd); }
void stmxcsr( Address dst );
......@@ -2125,6 +2129,9 @@ class MacroAssembler: public Assembler {
void comisd(XMMRegister dst, Address src) { Assembler::comisd(dst, src); }
void comisd(XMMRegister dst, AddressLiteral src);
void fadd_s(Address src) { Assembler::fadd_s(src); }
void fadd_s(AddressLiteral src) { Assembler::fadd_s(as_Address(src)); }
void fldcw(Address src) { Assembler::fldcw(src); }
void fldcw(AddressLiteral src);
......@@ -2138,6 +2145,9 @@ class MacroAssembler: public Assembler {
void fld_x(Address src) { Assembler::fld_x(src); }
void fld_x(AddressLiteral src);
void fmul_s(Address src) { Assembler::fmul_s(src); }
void fmul_s(AddressLiteral src) { Assembler::fmul_s(as_Address(src)); }
void ldmxcsr(Address src) { Assembler::ldmxcsr(src); }
void ldmxcsr(AddressLiteral src);
......@@ -2154,10 +2164,50 @@ private:
public:
void movsd(XMMRegister dst, XMMRegister src) { Assembler::movsd(dst, src); }
void movsd(Address dst, XMMRegister src) { Assembler::movsd(dst, src); }
void movsd(XMMRegister dst, Address src) { Assembler::movsd(dst, src); }
void movsd(XMMRegister dst, AddressLiteral src);
void addsd(XMMRegister dst, XMMRegister src) { Assembler::addsd(dst, src); }
void addsd(XMMRegister dst, Address src) { Assembler::addsd(dst, src); }
void addsd(XMMRegister dst, AddressLiteral src) { Assembler::addsd(dst, as_Address(src)); }
void addss(XMMRegister dst, XMMRegister src) { Assembler::addss(dst, src); }
void addss(XMMRegister dst, Address src) { Assembler::addss(dst, src); }
void addss(XMMRegister dst, AddressLiteral src) { Assembler::addss(dst, as_Address(src)); }
void divsd(XMMRegister dst, XMMRegister src) { Assembler::divsd(dst, src); }
void divsd(XMMRegister dst, Address src) { Assembler::divsd(dst, src); }
void divsd(XMMRegister dst, AddressLiteral src) { Assembler::divsd(dst, as_Address(src)); }
void divss(XMMRegister dst, XMMRegister src) { Assembler::divss(dst, src); }
void divss(XMMRegister dst, Address src) { Assembler::divss(dst, src); }
void divss(XMMRegister dst, AddressLiteral src) { Assembler::divss(dst, as_Address(src)); }
void movsd(XMMRegister dst, XMMRegister src) { Assembler::movsd(dst, src); }
void movsd(Address dst, XMMRegister src) { Assembler::movsd(dst, src); }
void movsd(XMMRegister dst, Address src) { Assembler::movsd(dst, src); }
void movsd(XMMRegister dst, AddressLiteral src) { Assembler::movsd(dst, as_Address(src)); }
void mulsd(XMMRegister dst, XMMRegister src) { Assembler::mulsd(dst, src); }
void mulsd(XMMRegister dst, Address src) { Assembler::mulsd(dst, src); }
void mulsd(XMMRegister dst, AddressLiteral src) { Assembler::mulsd(dst, as_Address(src)); }
void mulss(XMMRegister dst, XMMRegister src) { Assembler::mulss(dst, src); }
void mulss(XMMRegister dst, Address src) { Assembler::mulss(dst, src); }
void mulss(XMMRegister dst, AddressLiteral src) { Assembler::mulss(dst, as_Address(src)); }
void sqrtsd(XMMRegister dst, XMMRegister src) { Assembler::sqrtsd(dst, src); }
void sqrtsd(XMMRegister dst, Address src) { Assembler::sqrtsd(dst, src); }
void sqrtsd(XMMRegister dst, AddressLiteral src) { Assembler::sqrtsd(dst, as_Address(src)); }
void sqrtss(XMMRegister dst, XMMRegister src) { Assembler::sqrtss(dst, src); }
void sqrtss(XMMRegister dst, Address src) { Assembler::sqrtss(dst, src); }
void sqrtss(XMMRegister dst, AddressLiteral src) { Assembler::sqrtss(dst, as_Address(src)); }
void subsd(XMMRegister dst, XMMRegister src) { Assembler::subsd(dst, src); }
void subsd(XMMRegister dst, Address src) { Assembler::subsd(dst, src); }
void subsd(XMMRegister dst, AddressLiteral src) { Assembler::subsd(dst, as_Address(src)); }
void subss(XMMRegister dst, XMMRegister src) { Assembler::subss(dst, src); }
void subss(XMMRegister dst, Address src) { Assembler::subss(dst, src); }
void subss(XMMRegister dst, AddressLiteral src) { Assembler::subss(dst, as_Address(src)); }
void ucomiss(XMMRegister dst, XMMRegister src) { Assembler::ucomiss(dst, src); }
void ucomiss(XMMRegister dst, Address src) { Assembler::ucomiss(dst, src); }
......
src/cpu/x86/vm/x86_32.ad
浏览文件 @ 5928bc3c
此差异已折叠。
src/cpu/x86/vm/x86_64.ad
浏览文件 @ 5928bc3c
此差异已折叠。
src/os/linux/vm/vmError_linux.cpp
浏览文件 @ 5928bc3c
......@@ -44,11 +44,11 @@ void VMError::show_message_box(char *buf, int buflen) {
jio_snprintf(p, buflen - len,
"\n\n"
"Do you want to debug the problem?\n\n"
"To debug, run 'gdb /proc/%d/exe %d'; then switch to thread " INTX_FORMAT "\n"
"To debug, run 'gdb /proc/%d/exe %d'; then switch to thread " INTX_FORMAT " (" INTPTR_FORMAT ")\n"
"Enter 'yes' to launch gdb automatically (PATH must include gdb)\n"
"Otherwise, press RETURN to abort...",
os::current_process_id(), os::current_process_id(),
os::current_thread_id());
os::current_thread_id(), os::current_thread_id());
yes = os::message_box("Unexpected Error", buf);
......
src/share/vm/adlc/adlparse.cpp
浏览文件 @ 5928bc3c
......@@ -95,7 +95,7 @@ void ADLParser::parse() {
if (ident == NULL) { // Empty line
continue; // Get the next line
}
if (!strcmp(ident, "instruct")) instr_parse();
if (!strcmp(ident, "instruct")) instr_parse();
else if (!strcmp(ident, "operand")) oper_parse();
else if (!strcmp(ident, "opclass")) opclass_parse();
else if (!strcmp(ident, "ins_attrib")) ins_attr_parse();
......@@ -216,24 +216,23 @@ void ADLParser::instr_parse(void) {
else if (!strcmp(ident, "encode")) {
parse_err(SYNERR, "Instructions specify ins_encode, not encode\n");
}
else if (!strcmp(ident, "ins_encode"))
instr->_insencode = ins_encode_parse(*instr);
else if (!strcmp(ident, "opcode")) instr->_opcode = opcode_parse(instr);
else if (!strcmp(ident, "size")) instr->_size = size_parse(instr);
else if (!strcmp(ident, "effect")) effect_parse(instr);
else if (!strcmp(ident, "expand")) instr->_exprule = expand_parse(instr);
else if (!strcmp(ident, "rewrite")) instr->_rewrule = rewrite_parse();
else if (!strcmp(ident, "ins_encode")) ins_encode_parse(*instr);
else if (!strcmp(ident, "opcode")) instr->_opcode = opcode_parse(instr);
else if (!strcmp(ident, "size")) instr->_size = size_parse(instr);
else if (!strcmp(ident, "effect")) effect_parse(instr);
else if (!strcmp(ident, "expand")) instr->_exprule = expand_parse(instr);
else if (!strcmp(ident, "rewrite")) instr->_rewrule = rewrite_parse();
else if (!strcmp(ident, "constraint")) {
parse_err(SYNERR, "Instructions do not specify a constraint\n");
}
else if (!strcmp(ident, "construct")) {
parse_err(SYNERR, "Instructions do not specify a construct\n");
}
else if (!strcmp(ident, "format")) instr->_format = format_parse();
else if (!strcmp(ident, "format")) instr->_format = format_parse();
else if (!strcmp(ident, "interface")) {
parse_err(SYNERR, "Instructions do not specify an interface\n");
}
else if (!strcmp(ident, "ins_pipe")) ins_pipe_parse(*instr);
else if (!strcmp(ident, "ins_pipe")) ins_pipe_parse(*instr);
else { // Done with staticly defined parts of instruction definition
// Check identifier to see if it is the name of an attribute
const Form *form = _globalNames[ident];
......@@ -323,7 +322,8 @@ void ADLParser::adjust_set_rule(InstructForm *instr) {
const char *optype2 = NULL;
// Can not have additional base operands in right side of match!
if ( ! right->base_operand( position, _globalNames, result2, name2, optype2) ) {
assert( instr->_predicate == NULL, "ADLC does not support instruction chain rules with predicates");
if (instr->_predicate != NULL)
parse_err(SYNERR, "ADLC does not support instruction chain rules with predicates");
// Chain from input _ideal_operand_type_,
// Needed for shared roots of match-trees
ChainList *lst = (ChainList *)_AD._chainRules[optype];
......@@ -935,9 +935,9 @@ void ADLParser::enc_class_parse_block(EncClass* encoding, char* ec_name) {
// (2)
// If we are at a replacement variable,
// copy it and record in EncClass
if ( _curchar == '$' ) {
if (_curchar == '$') {
// Found replacement Variable
char *rep_var = get_rep_var_ident_dup();
char* rep_var = get_rep_var_ident_dup();
// Add flag to _strings list indicating we should check _rep_vars
encoding->add_rep_var(rep_var);
}
......@@ -2774,47 +2774,122 @@ Predicate *ADLParser::pred_parse(void) {
//------------------------------ins_encode_parse_block-------------------------
// Parse the block form of ins_encode. See ins_encode_parse for more details
InsEncode *ADLParser::ins_encode_parse_block(InstructForm &inst) {
void ADLParser::ins_encode_parse_block(InstructForm& inst) {
// Create a new encoding name based on the name of the instruction
// definition, which should be unique.
const char * prefix = "__enc_";
char* ec_name = (char*)malloc(strlen(inst._ident) + strlen(prefix) + 1);
const char* prefix = "__ins_encode_";
char* ec_name = (char*) malloc(strlen(inst._ident) + strlen(prefix) + 1);
sprintf(ec_name, "%s%s", prefix, inst._ident);
assert(_AD._encode->encClass(ec_name) == NULL, "shouldn't already exist");
EncClass *encoding = _AD._encode->add_EncClass(ec_name);
EncClass* encoding = _AD._encode->add_EncClass(ec_name);
encoding->_linenum = linenum();
// synthesize the arguments list for the enc_class from the
// arguments to the instruct definition.
const char * param = NULL;
const char* param = NULL;
inst._parameters.reset();
while ((param = inst._parameters.iter()) != NULL) {
OperandForm *opForm = (OperandForm*)inst._localNames[param];
OperandForm* opForm = (OperandForm*) inst._localNames[param];
encoding->add_parameter(opForm->_ident, param);
}
// Add the prologue to create the MacroAssembler
encoding->add_code("\n"
" // Define a MacroAssembler instance for use by the encoding. The\n"
" // name is chosen to match the __ idiom used for assembly in other\n"
" // parts of hotspot and assumes the existence of the standard\n"
" // #define __ _masm.\n"
" MacroAssembler _masm(&cbuf);\n");
// Define a MacroAssembler instance for use by the encoding. The
// name is chosen to match the __ idiom used for assembly in other
// parts of hotspot and assumes the existence of the standard
// #define __ _masm.
encoding->add_code(" MacroAssembler _masm(&cbuf);\n");
// Parse the following %{ }% block
enc_class_parse_block(encoding, ec_name);
ins_encode_parse_block_impl(inst, encoding, ec_name);
// Build an encoding rule which invokes the encoding rule we just
// created, passing all arguments that we received.
InsEncode *encrule = new InsEncode(); // Encode class for instruction
NameAndList *params = encrule->add_encode(ec_name);
InsEncode* encrule = new InsEncode(); // Encode class for instruction
NameAndList* params = encrule->add_encode(ec_name);
inst._parameters.reset();
while ((param = inst._parameters.iter()) != NULL) {
params->add_entry(param);
}
return encrule;
// Set encode class of this instruction.
inst._insencode = encrule;
}
void ADLParser::ins_encode_parse_block_impl(InstructForm& inst, EncClass* encoding, char* ec_name) {
skipws_no_preproc(); // Skip leading whitespace
// Prepend location descriptor, for debugging; cf. ADLParser::find_cpp_block
if (_AD._adlocation_debug) {
encoding->add_code(get_line_string());
}
// Collect the parts of the encode description
// (1) strings that are passed through to output
// (2) replacement/substitution variable, preceeded by a '$'
while ((_curchar != '%') && (*(_ptr+1) != '}')) {
// (1)
// Check if there is a string to pass through to output
char *start = _ptr; // Record start of the next string
while ((_curchar != '$') && ((_curchar != '%') || (*(_ptr+1) != '}')) ) {
// If at the start of a comment, skip past it
if( (_curchar == '/') && ((*(_ptr+1) == '/') || (*(_ptr+1) == '*')) ) {
skipws_no_preproc();
} else {
// ELSE advance to the next character, or start of the next line
next_char_or_line();
}
}
// If a string was found, terminate it and record in EncClass
if (start != _ptr) {
*_ptr = '\0'; // Terminate the string
encoding->add_code(start);
}
// (2)
// If we are at a replacement variable,
// copy it and record in EncClass
if (_curchar == '$') {
// Found replacement Variable
char* rep_var = get_rep_var_ident_dup();
// Add flag to _strings list indicating we should check _rep_vars
encoding->add_rep_var(rep_var);
skipws();
// Check if this instruct is a MachConstantNode.
if (strcmp(rep_var, "constanttablebase") == 0) {
// This instruct is a MachConstantNode.
inst.set_is_mach_constant(true);
if (_curchar == '(') {
parse_err(SYNERR, "constanttablebase in instruct %s cannot have an argument (only constantaddress and constantoffset)", ec_name);
return;
}
}
else if ((strcmp(rep_var, "constantaddress") == 0) ||
(strcmp(rep_var, "constantoffset") == 0)) {
// This instruct is a MachConstantNode.
inst.set_is_mach_constant(true);
// If the constant keyword has an argument, parse it.
if (_curchar == '(') constant_parse(inst);
}
}
} // end while part of format description
next_char(); // Skip '%'
next_char(); // Skip '}'
skipws();
if (_AD._adlocation_debug) {
encoding->add_code(end_line_marker());
}
// Debug Stuff
if (_AD._adl_debug > 1) fprintf(stderr, "EncodingClass Form: %s\n", ec_name);
}
......@@ -2838,7 +2913,7 @@ InsEncode *ADLParser::ins_encode_parse_block(InstructForm &inst) {
//
// making it more compact to take advantage of the MacroAssembler and
// placing the assembly closer to it's use by instructions.
InsEncode *ADLParser::ins_encode_parse(InstructForm &inst) {
void ADLParser::ins_encode_parse(InstructForm& inst) {
// Parse encode class name
skipws(); // Skip whitespace
......@@ -2849,11 +2924,12 @@ InsEncode *ADLParser::ins_encode_parse(InstructForm &inst) {
next_char(); // Skip '{'
// Parse the block form of ins_encode
return ins_encode_parse_block(inst);
ins_encode_parse_block(inst);
return;
}
parse_err(SYNERR, "missing '%%{' or '(' in ins_encode definition\n");
return NULL;
return;
}
next_char(); // move past '('
skipws();
......@@ -2866,7 +2942,7 @@ InsEncode *ADLParser::ins_encode_parse(InstructForm &inst) {
ec_name = get_ident();
if (ec_name == NULL) {
parse_err(SYNERR, "Invalid encode class name after 'ins_encode('.\n");
return NULL;
return;
}
// Check that encoding is defined in the encode section
EncClass *encode_class = _AD._encode->encClass(ec_name);
......@@ -2898,7 +2974,7 @@ InsEncode *ADLParser::ins_encode_parse(InstructForm &inst) {
(Opcode::as_opcode_type(param) == Opcode::NOT_AN_OPCODE) &&
((_AD._register == NULL ) || (_AD._register->getRegDef(param) == NULL)) ) {
parse_err(SYNERR, "Using non-locally defined parameter %s for encoding %s.\n", param, ec_name);
return NULL;
return;
}
params->add_entry(param);
......@@ -2915,7 +2991,7 @@ InsEncode *ADLParser::ins_encode_parse(InstructForm &inst) {
// Only ',' or ')' are valid after a parameter name
parse_err(SYNERR, "expected ',' or ')' after parameter %s.\n",
ec_name);
return NULL;
return;
}
} else {
......@@ -2923,11 +2999,11 @@ InsEncode *ADLParser::ins_encode_parse(InstructForm &inst) {
// Did not find a parameter
if (_curchar == ',') {
parse_err(SYNERR, "Expected encode parameter before ',' in encoding %s.\n", ec_name);
return NULL;
return;
}
if (_curchar != ')') {
parse_err(SYNERR, "Expected ')' after encode parameters.\n");
return NULL;
return;
}
}
} // WHILE loop collecting parameters
......@@ -2944,7 +3020,7 @@ InsEncode *ADLParser::ins_encode_parse(InstructForm &inst) {
else if ( _curchar != ')' ) {
// If not a ',' then only a ')' is allowed
parse_err(SYNERR, "Expected ')' after encoding %s.\n", ec_name);
return NULL;
return;
}
// Check for ',' separating parameters
......@@ -2956,14 +3032,14 @@ InsEncode *ADLParser::ins_encode_parse(InstructForm &inst) {
} // done parsing ins_encode methods and their parameters
if (_curchar != ')') {
parse_err(SYNERR, "Missing ')' at end of ins_encode description.\n");
return NULL;
return;
}
next_char(); // move past ')'
skipws(); // Skip leading whitespace
if ( _curchar != ';' ) {
parse_err(SYNERR, "Missing ';' at end of ins_encode.\n");
return NULL;
return;
}
next_char(); // move past ';'
skipws(); // be friendly to oper_parse()
......@@ -2971,7 +3047,113 @@ InsEncode *ADLParser::ins_encode_parse(InstructForm &inst) {
// Debug Stuff
if (_AD._adl_debug > 1) fprintf(stderr,"Instruction Encode: %s\n", ec_name);
return encrule;
// Set encode class of this instruction.
inst._insencode = encrule;
}
//------------------------------constant_parse---------------------------------
// Parse a constant expression.
void ADLParser::constant_parse(InstructForm& inst) {
// Create a new encoding name based on the name of the instruction
// definition, which should be unique.
const char* prefix = "__constant_";
char* ec_name = (char*) malloc(strlen(inst._ident) + strlen(prefix) + 1);
sprintf(ec_name, "%s%s", prefix, inst._ident);
assert(_AD._encode->encClass(ec_name) == NULL, "shouldn't already exist");
EncClass* encoding = _AD._encode->add_EncClass(ec_name);
encoding->_linenum = linenum();
// synthesize the arguments list for the enc_class from the
// arguments to the instruct definition.
const char* param = NULL;
inst._parameters.reset();
while ((param = inst._parameters.iter()) != NULL) {
OperandForm* opForm = (OperandForm*) inst._localNames[param];
encoding->add_parameter(opForm->_ident, param);
}
// Parse the following ( ) expression.
constant_parse_expression(encoding, ec_name);
// Build an encoding rule which invokes the encoding rule we just
// created, passing all arguments that we received.
InsEncode* encrule = new InsEncode(); // Encode class for instruction
NameAndList* params = encrule->add_encode(ec_name);
inst._parameters.reset();
while ((param = inst._parameters.iter()) != NULL) {
params->add_entry(param);
}
// Set encode class of this instruction.
inst._constant = encrule;
}
//------------------------------constant_parse_expression----------------------
void ADLParser::constant_parse_expression(EncClass* encoding, char* ec_name) {
skipws();
// Prepend location descriptor, for debugging; cf. ADLParser::find_cpp_block
if (_AD._adlocation_debug) {
encoding->add_code(get_line_string());
}
// Start code line.
encoding->add_code(" _constant = C->constant_table().add");
// Parse everything in ( ) expression.
encoding->add_code("(");
next_char(); // Skip '('
int parens_depth = 1;
// Collect the parts of the constant expression.
// (1) strings that are passed through to output
// (2) replacement/substitution variable, preceeded by a '$'
while (parens_depth > 0) {
if (_curchar == '(') {
parens_depth++;
encoding->add_code("(");
next_char();
}
else if (_curchar == ')') {
parens_depth--;
encoding->add_code(")");
next_char();
}
else {
// (1)
// Check if there is a string to pass through to output
char *start = _ptr; // Record start of the next string
while ((_curchar != '$') && (_curchar != '(') && (_curchar != ')')) {
next_char();
}
// If a string was found, terminate it and record in EncClass
if (start != _ptr) {
*_ptr = '\0'; // Terminate the string
encoding->add_code(start);
}
// (2)
// If we are at a replacement variable, copy it and record in EncClass.
if (_curchar == '$') {
// Found replacement Variable
char* rep_var = get_rep_var_ident_dup();
encoding->add_rep_var(rep_var);
}
}
}
// Finish code line.
encoding->add_code(";");
if (_AD._adlocation_debug) {
encoding->add_code(end_line_marker());
}
// Debug Stuff
if (_AD._adl_debug > 1) fprintf(stderr, "EncodingClass Form: %s\n", ec_name);
}
......
src/share/vm/adlc/adlparse.hpp
浏览文件 @ 5928bc3c
......@@ -156,8 +156,13 @@ protected:
Attribute *attr_parse(char *ident);// Parse instr/operand attribute rule
// Parse instruction encode rule
InsEncode *ins_encode_parse(InstructForm &inst);
InsEncode *ins_encode_parse_block(InstructForm &inst);
void ins_encode_parse(InstructForm &inst);
void ins_encode_parse_block(InstructForm &inst);
void ins_encode_parse_block_impl(InstructForm& inst, EncClass* encoding, char* ec_name);
void constant_parse(InstructForm& inst);
void constant_parse_expression(EncClass* encoding, char* ec_name);
Opcode *opcode_parse(InstructForm *insr); // Parse instruction opcode
char *size_parse(InstructForm *insr); // Parse instruction size
Interface *interface_parse(); // Parse operand interface rule
......
src/share/vm/adlc/archDesc.hpp
浏览文件 @ 5928bc3c
......@@ -126,7 +126,6 @@ private:
void chain_rule(FILE *fp, const char *indent, const char *ideal,
const Expr *icost, const char *irule,
Dict &operands_chained_from, ProductionState &status);
void chain_rule_c(FILE *fp, char *indent, char *ideal, char *irule); // %%%%% TODO: remove this
void expand_opclass(FILE *fp, const char *indent, const Expr *cost,
const char *result_type, ProductionState &status);
Expr *calc_cost(FILE *fp, const char *spaces, MatchList &mList, ProductionState &status);
......@@ -301,13 +300,18 @@ public:
void buildMachNodeGenerator(FILE *fp_cpp);
// Generator for Expand methods for instructions with expand rules
void defineExpand(FILE *fp, InstructForm *node);
void defineExpand (FILE *fp, InstructForm *node);
// Generator for Peephole methods for instructions with peephole rules
void definePeephole(FILE *fp, InstructForm *node);
void definePeephole (FILE *fp, InstructForm *node);
// Generator for Size methods for instructions
void defineSize(FILE *fp, InstructForm &node);
void defineSize (FILE *fp, InstructForm &node);
public:
// Generator for EvalConstantValue methods for instructions
void defineEvalConstant(FILE *fp, InstructForm &node);
// Generator for Emit methods for instructions
void defineEmit(FILE *fp, InstructForm &node);
void defineEmit (FILE *fp, InstructForm &node);
// Define a MachOper encode method
void define_oper_interface(FILE *fp, OperandForm &oper, FormDict &globals,
const char *name, const char *encoding);
......
src/share/vm/adlc/formssel.cpp
浏览文件 @ 5928bc3c
......@@ -30,11 +30,14 @@
InstructForm::InstructForm(const char *id, bool ideal_only)
: _ident(id), _ideal_only(ideal_only),
_localNames(cmpstr, hashstr, Form::arena),
_effects(cmpstr, hashstr, Form::arena) {
_effects(cmpstr, hashstr, Form::arena),
_is_mach_constant(false)
{
_ftype = Form::INS;
_matrule = NULL;
_insencode = NULL;
_constant = NULL;
_opcode = NULL;
_size = NULL;
_attribs = NULL;
......@@ -58,11 +61,14 @@ InstructForm::InstructForm(const char *id, bool ideal_only)
InstructForm::InstructForm(const char *id, InstructForm *instr, MatchRule *rule)
: _ident(id), _ideal_only(false),
_localNames(instr->_localNames),
_effects(instr->_effects) {
_effects(instr->_effects),
_is_mach_constant(false)
{
_ftype = Form::INS;
_matrule = rule;
_insencode = instr->_insencode;
_constant = instr->_constant;
_opcode = instr->_opcode;
_size = instr->_size;
_attribs = instr->_attribs;
......@@ -1094,6 +1100,9 @@ const char *InstructForm::mach_base_class(FormDict &globals) const {
else if (is_ideal_nop()) {
return "MachNopNode";
}
else if (is_mach_constant()) {
return "MachConstantNode";
}
else if (captures_bottom_type(globals)) {
return "MachTypeNode";
} else {
......@@ -1190,6 +1199,21 @@ bool InstructForm::check_branch_variant(ArchDesc &AD, InstructForm *short_branch
//
// Generate the format call for the replacement variable
void InstructForm::rep_var_format(FILE *fp, const char *rep_var) {
// Handle special constant table variables.
if (strcmp(rep_var, "constanttablebase") == 0) {
fprintf(fp, "char reg[128]; ra->dump_register(in(mach_constant_base_node_input()), reg);\n");
fprintf(fp, "st->print(\"%%s\");\n");
return;
}
if (strcmp(rep_var, "constantoffset") == 0) {
fprintf(fp, "st->print(\"#%%d\", constant_offset());\n");
return;
}
if (strcmp(rep_var, "constantaddress") == 0) {
fprintf(fp, "st->print(\"constant table base + #%%d\", constant_offset());\n");
return;
}
// Find replacement variable's type
const Form *form = _localNames[rep_var];
if (form == NULL) {
......@@ -1348,6 +1372,7 @@ void InstructForm::output(FILE *fp) {
fprintf(fp,"\nInstruction: %s\n", (_ident?_ident:""));
if (_matrule) _matrule->output(fp);
if (_insencode) _insencode->output(fp);
if (_constant) _constant->output(fp);
if (_opcode) _opcode->output(fp);
if (_attribs) _attribs->output(fp);
if (_predicate) _predicate->output(fp);
......
src/share/vm/adlc/formssel.hpp
浏览文件 @ 5928bc3c
......@@ -74,15 +74,16 @@ class ArchDesc;
//------------------------------InstructForm-----------------------------------
class InstructForm : public Form {
private:
bool _ideal_only; // Not a user-defined instruction
bool _ideal_only; // Not a user-defined instruction
// Members used for tracking CISC-spilling
uint _cisc_spill_operand;// Which operand may cisc-spill
uint _cisc_spill_operand;// Which operand may cisc-spill
void set_cisc_spill_operand(uint op_index) { _cisc_spill_operand = op_index; }
bool _is_cisc_alternate;
bool _is_cisc_alternate;
InstructForm *_cisc_spill_alternate;// cisc possible replacement
const char *_cisc_reg_mask_name;
InstructForm *_short_branch_form;
bool _is_short_branch;
bool _is_mach_constant; // true if Node is a MachConstantNode
uint _alignment;
public:
......@@ -94,6 +95,7 @@ public:
Opcode *_opcode; // Encoding of the opcode for instruction
char *_size; // Size of instruction
InsEncode *_insencode; // Encoding class instruction belongs to
InsEncode *_constant; // Encoding class constant value belongs to
Attribute *_attribs; // List of Attribute rules
Predicate *_predicate; // Predicate test for this instruction
FormDict _effects; // Dictionary of effect rules
......@@ -251,6 +253,9 @@ public:
bool is_short_branch() { return _is_short_branch; }
void set_short_branch(bool val) { _is_short_branch = val; }
bool is_mach_constant() const { return _is_mach_constant; }
void set_is_mach_constant(bool x) { _is_mach_constant = x; }
InstructForm *short_branch_form() { return _short_branch_form; }
bool has_short_branch_form() { return _short_branch_form != NULL; }
// Output short branch prototypes and method bodies
......
src/share/vm/adlc/output_c.cpp
浏览文件 @ 5928bc3c
......@@ -1496,8 +1496,8 @@ void ArchDesc::defineExpand(FILE *fp, InstructForm *node) {
unsigned i;
// Generate Expand function header
fprintf(fp,"MachNode *%sNode::Expand(State *state, Node_List &proj_list, Node* mem) {\n", node->_ident);
fprintf(fp,"Compile* C = Compile::current();\n");
fprintf(fp, "MachNode* %sNode::Expand(State* state, Node_List& proj_list, Node* mem) {\n", node->_ident);
fprintf(fp, " Compile* C = Compile::current();\n");
// Generate expand code
if( node->expands() ) {
const char *opid;
......@@ -1818,6 +1818,12 @@ void ArchDesc::defineExpand(FILE *fp, InstructForm *node) {
}
}
// If the node is a MachConstantNode, insert the MachConstantBaseNode edge.
// NOTE: this edge must be the last input (see MachConstantNode::mach_constant_base_node_input).
if (node->is_mach_constant()) {
fprintf(fp," add_req(C->mach_constant_base_node());\n");
}
fprintf(fp,"\n");
if( node->expands() ) {
fprintf(fp," return result;\n");
......@@ -1924,7 +1930,17 @@ public:
// No state needed.
assert( _opclass == NULL,
"'primary', 'secondary' and 'tertiary' don't follow operand.");
} else {
}
else if ((strcmp(rep_var, "constanttablebase") == 0) ||
(strcmp(rep_var, "constantoffset") == 0) ||
(strcmp(rep_var, "constantaddress") == 0)) {
if (!_inst.is_mach_constant()) {
_AD.syntax_err(_encoding._linenum,
"Replacement variable %s not allowed in instruct %s (only in MachConstantNode).\n",
rep_var, _encoding._name);
}
}
else {
// Lookup its position in parameter list
int param_no = _encoding.rep_var_index(rep_var);
if ( param_no == -1 ) {
......@@ -2380,6 +2396,15 @@ private:
rep_var, _inst._ident, _encoding._name);
}
}
else if (strcmp(rep_var, "constanttablebase") == 0) {
fprintf(_fp, "as_Register(ra_->get_encode(in(mach_constant_base_node_input())))");
}
else if (strcmp(rep_var, "constantoffset") == 0) {
fprintf(_fp, "constant_offset()");
}
else if (strcmp(rep_var, "constantaddress") == 0) {
fprintf(_fp, "InternalAddress(__ code()->consts()->start() + constant_offset())");
}
else {
// Lookup its position in parameter list
int param_no = _encoding.rep_var_index(rep_var);
......@@ -2465,37 +2490,39 @@ void ArchDesc::defineSize(FILE *fp, InstructForm &inst) {
fprintf(fp,"}\n");
}
void ArchDesc::defineEmit(FILE *fp, InstructForm &inst) {
InsEncode *ins_encode = inst._insencode;
// defineEmit -----------------------------------------------------------------
void ArchDesc::defineEmit(FILE* fp, InstructForm& inst) {
InsEncode* encode = inst._insencode;
// (1)
// Output instruction's emit prototype
fprintf(fp,"void %sNode::emit(CodeBuffer &cbuf, PhaseRegAlloc *ra_) const {\n",
inst._ident);
fprintf(fp, "void %sNode::emit(CodeBuffer& cbuf, PhaseRegAlloc* ra_) const {\n", inst._ident);
// If user did not define an encode section,
// provide stub that does not generate any machine code.
if( (_encode == NULL) || (ins_encode == NULL) ) {
if( (_encode == NULL) || (encode == NULL) ) {
fprintf(fp, " // User did not define an encode section.\n");
fprintf(fp,"}\n");
fprintf(fp, "}\n");
return;
}
// Save current instruction's starting address (helps with relocation).
fprintf(fp, " cbuf.set_insts_mark();\n");
fprintf(fp, " cbuf.set_insts_mark();\n");
// // // idx0 is only needed for syntactic purposes and only by "storeSSI"
// fprintf( fp, " unsigned idx0 = 0;\n");
// For MachConstantNodes which are ideal jump nodes, fill the jump table.
if (inst.is_mach_constant() && inst.is_ideal_jump()) {
fprintf(fp, " ra_->C->constant_table().fill_jump_table(cbuf, (MachConstantNode*) this, _index2label);\n");
}
// Output each operand's offset into the array of registers.
inst.index_temps( fp, _globalNames );
inst.index_temps(fp, _globalNames);
// Output this instruction's encodings
const char *ec_name;
bool user_defined = false;
ins_encode->reset();
while ( (ec_name = ins_encode->encode_class_iter()) != NULL ) {
fprintf(fp, " {");
encode->reset();
while ((ec_name = encode->encode_class_iter()) != NULL) {
fprintf(fp, " {\n");
// Output user-defined encoding
user_defined = true;
......@@ -2507,25 +2534,25 @@ void ArchDesc::defineEmit(FILE *fp, InstructForm &inst) {
abort();
}
if (ins_encode->current_encoding_num_args() != encoding->num_args()) {
globalAD->syntax_err(ins_encode->_linenum, "In %s: passing %d arguments to %s but expecting %d",
inst._ident, ins_encode->current_encoding_num_args(),
if (encode->current_encoding_num_args() != encoding->num_args()) {
globalAD->syntax_err(encode->_linenum, "In %s: passing %d arguments to %s but expecting %d",
inst._ident, encode->current_encoding_num_args(),
ec_name, encoding->num_args());
}
DefineEmitState pending(fp, *this, *encoding, *ins_encode, inst );
DefineEmitState pending(fp, *this, *encoding, *encode, inst);
encoding->_code.reset();
encoding->_rep_vars.reset();
// Process list of user-defined strings,
// and occurrences of replacement variables.
// Replacement Vars are pushed into a list and then output
while ( (ec_code = encoding->_code.iter()) != NULL ) {
if ( ! encoding->_code.is_signal( ec_code ) ) {
while ((ec_code = encoding->_code.iter()) != NULL) {
if (!encoding->_code.is_signal(ec_code)) {
// Emit pending code
pending.emit();
pending.clear();
// Emit this code section
fprintf(fp,"%s", ec_code);
fprintf(fp, "%s", ec_code);
} else {
// A replacement variable or one of its subfields
// Obtain replacement variable from list
......@@ -2536,7 +2563,7 @@ void ArchDesc::defineEmit(FILE *fp, InstructForm &inst) {
// Emit pending code
pending.emit();
pending.clear();
fprintf(fp, "}\n");
fprintf(fp, " }\n");
} // end while instruction's encodings
// Check if user stated which encoding to user
......@@ -2545,7 +2572,86 @@ void ArchDesc::defineEmit(FILE *fp, InstructForm &inst) {
}
// (3) and (4)
fprintf(fp,"}\n");
fprintf(fp, "}\n");
}
// defineEvalConstant ---------------------------------------------------------
void ArchDesc::defineEvalConstant(FILE* fp, InstructForm& inst) {
InsEncode* encode = inst._constant;
// (1)
// Output instruction's emit prototype
fprintf(fp, "void %sNode::eval_constant(Compile* C) {\n", inst._ident);
// For ideal jump nodes, allocate a jump table.
if (inst.is_ideal_jump()) {
fprintf(fp, " _constant = C->constant_table().allocate_jump_table(this);\n");
}
// If user did not define an encode section,
// provide stub that does not generate any machine code.
if ((_encode == NULL) || (encode == NULL)) {
fprintf(fp, " // User did not define an encode section.\n");
fprintf(fp, "}\n");
return;
}
// Output this instruction's encodings
const char *ec_name;
bool user_defined = false;
encode->reset();
while ((ec_name = encode->encode_class_iter()) != NULL) {
fprintf(fp, " {\n");
// Output user-defined encoding
user_defined = true;
const char *ec_code = NULL;
const char *ec_rep_var = NULL;
EncClass *encoding = _encode->encClass(ec_name);
if (encoding == NULL) {
fprintf(stderr, "User did not define contents of this encode_class: %s\n", ec_name);
abort();
}
if (encode->current_encoding_num_args() != encoding->num_args()) {
globalAD->syntax_err(encode->_linenum, "In %s: passing %d arguments to %s but expecting %d",
inst._ident, encode->current_encoding_num_args(),
ec_name, encoding->num_args());
}
DefineEmitState pending(fp, *this, *encoding, *encode, inst);
encoding->_code.reset();
encoding->_rep_vars.reset();
// Process list of user-defined strings,
// and occurrences of replacement variables.
// Replacement Vars are pushed into a list and then output
while ((ec_code = encoding->_code.iter()) != NULL) {
if (!encoding->_code.is_signal(ec_code)) {
// Emit pending code
pending.emit();
pending.clear();
// Emit this code section
fprintf(fp, "%s", ec_code);
} else {
// A replacement variable or one of its subfields
// Obtain replacement variable from list
ec_rep_var = encoding->_rep_vars.iter();
pending.add_rep_var(ec_rep_var);
}
}
// Emit pending code
pending.emit();
pending.clear();
fprintf(fp, " }\n");
} // end while instruction's encodings
// Check if user stated which encoding to user
if (user_defined == false) {
fprintf(fp, " // User did not define which encode class to use.\n");
}
// (3) and (4)
fprintf(fp, "}\n");
}
// ---------------------------------------------------------------------------
......@@ -2952,6 +3058,7 @@ void ArchDesc::defineClasses(FILE *fp) {
// If there are multiple defs/kills, or an explicit expand rule, build rule
if( instr->expands() || instr->needs_projections() ||
instr->has_temps() ||
instr->is_mach_constant() ||
instr->_matrule != NULL &&
instr->num_opnds() != instr->num_unique_opnds() )
defineExpand(_CPP_EXPAND_file._fp, instr);
......@@ -3032,8 +3139,9 @@ void ArchDesc::defineClasses(FILE *fp) {
// Ensure this is a machine-world instruction
if ( instr->ideal_only() ) continue;
if (instr->_insencode) defineEmit(fp, *instr);
if (instr->_size) defineSize(fp, *instr);
if (instr->_insencode) defineEmit (fp, *instr);
if (instr->is_mach_constant()) defineEvalConstant(fp, *instr);
if (instr->_size) defineSize (fp, *instr);
// side-call to generate output that used to be in the header file:
extern void gen_inst_format(FILE *fp, FormDict &globals, InstructForm &oper, bool for_c_file);
......
src/share/vm/adlc/output_h.cpp
浏览文件 @ 5928bc3c
......@@ -1550,7 +1550,12 @@ void ArchDesc::declareClasses(FILE *fp) {
}
// virtual functions for encode and format
//
// Virtual function for evaluating the constant.
if (instr->is_mach_constant()) {
fprintf(fp," virtual void eval_constant(Compile* C);\n");
}
// Output the opcode function and the encode function here using the
// encoding class information in the _insencode slot.
if ( instr->_insencode ) {
......@@ -1559,7 +1564,7 @@ void ArchDesc::declareClasses(FILE *fp) {
// virtual function for getting the size of an instruction
if ( instr->_size ) {
fprintf(fp," virtual uint size(PhaseRegAlloc *ra_) const;\n");
fprintf(fp," virtual uint size(PhaseRegAlloc *ra_) const;\n");
}
// Return the top-level ideal opcode.
......@@ -1752,6 +1757,7 @@ void ArchDesc::declareClasses(FILE *fp) {
// Virtual methods which are only generated to override base class
if( instr->expands() || instr->needs_projections() ||
instr->has_temps() ||
instr->is_mach_constant() ||
instr->_matrule != NULL &&
instr->num_opnds() != instr->num_unique_opnds() ) {
fprintf(fp," virtual MachNode *Expand(State *state, Node_List &proj_list, Node* mem);\n");
......@@ -1780,24 +1786,6 @@ void ArchDesc::declareClasses(FILE *fp) {
// Declare short branch methods, if applicable
instr->declare_short_branch_methods(fp);
// Instructions containing a constant that will be entered into the
// float/double table redefine the base virtual function
#ifdef SPARC
// Sparc doubles entries in the constant table require more space for
// alignment. (expires 9/98)
int table_entries = (3 * instr->num_consts( _globalNames, Form::idealD ))
+ instr->num_consts( _globalNames, Form::idealF );
#else
int table_entries = instr->num_consts( _globalNames, Form::idealD )
+ instr->num_consts( _globalNames, Form::idealF );
#endif
if( table_entries != 0 ) {
fprintf(fp," virtual int const_size() const {");
fprintf(fp, " return %d;", table_entries);
fprintf(fp, " }\n");
}
// See if there is an "ins_pipe" declaration for this instruction
if (instr->_ins_pipe) {
fprintf(fp," static const Pipeline *pipeline_class();\n");
......
src/share/vm/asm/assembler.hpp
浏览文件 @ 5928bc3c
......@@ -292,7 +292,16 @@ class AbstractAssembler : public ResourceObj {
address start_a_const(int required_space, int required_align = sizeof(double));
void end_a_const();
// fp constants support
// constants support
address long_constant(jlong c) {
address ptr = start_a_const(sizeof(c), sizeof(c));
if (ptr != NULL) {
*(jlong*)ptr = c;
_code_pos = ptr + sizeof(c);
end_a_const();
}
return ptr;
}
address double_constant(jdouble c) {
address ptr = start_a_const(sizeof(c), sizeof(c));
if (ptr != NULL) {
......@@ -311,6 +320,15 @@ class AbstractAssembler : public ResourceObj {
}
return ptr;
}
address address_constant(address c) {
address ptr = start_a_const(sizeof(c), sizeof(c));
if (ptr != NULL) {
*(address*)ptr = c;
_code_pos = ptr + sizeof(c);
end_a_const();
}
return ptr;
}
address address_constant(address c, RelocationHolder const& rspec) {
address ptr = start_a_const(sizeof(c), sizeof(c));
if (ptr != NULL) {
......@@ -321,8 +339,6 @@ class AbstractAssembler : public ResourceObj {
}
return ptr;
}
inline address address_constant(Label& L);
inline address address_table_constant(GrowableArray<Label*> label);
// Bootstrapping aid to cope with delayed determination of constants.
// Returns a static address which will eventually contain the constant.
......
src/share/vm/asm/assembler.inline.hpp
浏览文件 @ 5928bc3c
......@@ -114,32 +114,4 @@ inline void Label::bind_loc(int pos, int sect) {
bind_loc(CodeBuffer::locator(pos, sect));
}
address AbstractAssembler::address_constant(Label& L) {
address c = NULL;
address ptr = start_a_const(sizeof(c), sizeof(c));
if (ptr != NULL) {
relocate(Relocation::spec_simple(relocInfo::internal_word_type));
*(address*)ptr = c = code_section()->target(L, ptr);
_code_pos = ptr + sizeof(c);
end_a_const();
}
return ptr;
}
address AbstractAssembler::address_table_constant(GrowableArray<Label*> labels) {
int addressSize = sizeof(address);
int sizeLabel = addressSize * labels.length();
address ptr = start_a_const(sizeLabel, addressSize);
if (ptr != NULL) {
address *labelLoc = (address*)ptr;
for (int i=0; i < labels.length(); i++) {
emit_address(code_section()->target(*labels.at(i), (address)&labelLoc[i]));
code_section()->relocate((address)&labelLoc[i], relocInfo::internal_word_type);
}
end_a_const();
}
return ptr;
}
#endif // SHARE_VM_ASM_ASSEMBLER_INLINE_HPP
src/share/vm/compiler/disassembler.cpp
浏览文件 @ 5928bc3c
......@@ -467,5 +467,18 @@ void Disassembler::decode(nmethod* nm, outputStream* st) {
env.set_total_ticks(total_bucket_count);
}
// Print constant table.
if (nm->consts_size() > 0) {
nm->print_nmethod_labels(env.output(), nm->consts_begin());
int offset = 0;
for (address p = nm->consts_begin(); p < nm->consts_end(); p += 4, offset += 4) {
if ((offset % 8) == 0) {
env.output()->print_cr(" " INTPTR_FORMAT " (offset: %4d): " PTR32_FORMAT " " PTR64_FORMAT, (intptr_t) p, offset, *((int32_t*) p), *((int64_t*) p));
} else {
env.output()->print_cr(" " INTPTR_FORMAT " (offset: %4d): " PTR32_FORMAT, (intptr_t) p, offset, *((int32_t*) p));
}
}
}
env.decode_instructions(p, end);
}
src/share/vm/opto/c2_globals.hpp
浏览文件 @ 5928bc3c
......@@ -284,6 +284,9 @@
develop(bool, SparcV9RegsHiBitsZero, true, \
"Assume Sparc V9 I&L registers on V8+ systems are zero-extended") \
\
product(bool, UseRDPCForConstantTableBase, false, \
"Use Sparc RDPC instruction for the constant table base.") \
\
develop(intx, PrintIdealGraphLevel, 0, \
"Print ideal graph to XML file / network interface. " \
"By default attempts to connect to the visualizer on a socket.") \
......
src/share/vm/opto/compile.cpp
浏览文件 @ 5928bc3c
......@@ -75,6 +75,18 @@
# include "adfiles/ad_zero.hpp"
#endif
// -------------------- Compile::mach_constant_base_node -----------------------
// Constant table base node singleton.
MachConstantBaseNode* Compile::mach_constant_base_node() {
if (_mach_constant_base_node == NULL) {
_mach_constant_base_node = new (C) MachConstantBaseNode();
_mach_constant_base_node->add_req(C->root());
}
return _mach_constant_base_node;
}
/// Support for intrinsics.
// Return the index at which m must be inserted (or already exists).
......@@ -432,13 +444,14 @@ void Compile::print_compile_messages() {
}
void Compile::init_scratch_buffer_blob() {
if( scratch_buffer_blob() != NULL ) return;
void Compile::init_scratch_buffer_blob(int const_size) {
if (scratch_buffer_blob() != NULL) return;
// Construct a temporary CodeBuffer to have it construct a BufferBlob
// Cache this BufferBlob for this compile.
ResourceMark rm;
int size = (MAX_inst_size + MAX_stubs_size + MAX_const_size);
_scratch_const_size = const_size;
int size = (MAX_inst_size + MAX_stubs_size + _scratch_const_size);
BufferBlob* blob = BufferBlob::create("Compile::scratch_buffer", size);
// Record the buffer blob for next time.
set_scratch_buffer_blob(blob);
......@@ -455,9 +468,19 @@ void Compile::init_scratch_buffer_blob() {
}
void Compile::clear_scratch_buffer_blob() {
assert(scratch_buffer_blob(), "no BufferBlob set");
set_scratch_buffer_blob(NULL);
set_scratch_locs_memory(NULL);
}
//-----------------------scratch_emit_size-------------------------------------
// Helper function that computes size by emitting code
uint Compile::scratch_emit_size(const Node* n) {
// Start scratch_emit_size section.
set_in_scratch_emit_size(true);
// Emit into a trash buffer and count bytes emitted.
// This is a pretty expensive way to compute a size,
// but it works well enough if seldom used.
......@@ -476,13 +499,20 @@ uint Compile::scratch_emit_size(const Node* n) {
address blob_end = (address)locs_buf;
assert(blob->content_contains(blob_end), "sanity");
CodeBuffer buf(blob_begin, blob_end - blob_begin);
buf.initialize_consts_size(MAX_const_size);
buf.initialize_consts_size(_scratch_const_size);
buf.initialize_stubs_size(MAX_stubs_size);
assert(locs_buf != NULL, "sanity");
int lsize = MAX_locs_size / 2;
buf.insts()->initialize_shared_locs(&locs_buf[0], lsize);
buf.stubs()->initialize_shared_locs(&locs_buf[lsize], lsize);
int lsize = MAX_locs_size / 3;
buf.consts()->initialize_shared_locs(&locs_buf[lsize * 0], lsize);
buf.insts()->initialize_shared_locs( &locs_buf[lsize * 1], lsize);
buf.stubs()->initialize_shared_locs( &locs_buf[lsize * 2], lsize);
// Do the emission.
n->emit(buf, this->regalloc());
// End scratch_emit_size section.
set_in_scratch_emit_size(false);
return buf.insts_size();
}
......@@ -516,10 +546,13 @@ Compile::Compile( ciEnv* ci_env, C2Compiler* compiler, ciMethod* target, int osr
_orig_pc_slot(0),
_orig_pc_slot_offset_in_bytes(0),
_has_method_handle_invokes(false),
_mach_constant_base_node(NULL),
_node_bundling_limit(0),
_node_bundling_base(NULL),
_java_calls(0),
_inner_loops(0),
_scratch_const_size(-1),
_in_scratch_emit_size(false),
#ifndef PRODUCT
_trace_opto_output(TraceOptoOutput || method()->has_option("TraceOptoOutput")),
_printer(IdealGraphPrinter::printer()),
......@@ -783,6 +816,7 @@ Compile::Compile( ciEnv* ci_env,
_failure_reason(NULL),
_code_buffer("Compile::Fill_buffer"),
_has_method_handle_invokes(false),
_mach_constant_base_node(NULL),
_node_bundling_limit(0),
_node_bundling_base(NULL),
_java_calls(0),
......@@ -2862,3 +2896,207 @@ Compile::TracePhase::~TracePhase() {
_log->done("phase nodes='%d'", C->unique());
}
}
//=============================================================================
// Two Constant's are equal when the type and the value are equal.
bool Compile::Constant::operator==(const Constant& other) {
if (type() != other.type() ) return false;
if (can_be_reused() != other.can_be_reused()) return false;
// For floating point values we compare the bit pattern.
switch (type()) {
case T_FLOAT: return (_value.i == other._value.i);
case T_LONG:
case T_DOUBLE: return (_value.j == other._value.j);
case T_OBJECT:
case T_ADDRESS: return (_value.l == other._value.l);
case T_VOID: return (_value.l == other._value.l); // jump-table entries
default: ShouldNotReachHere();
}
return false;
}
// Emit constants grouped in the following order:
static BasicType type_order[] = {
T_FLOAT, // 32-bit
T_OBJECT, // 32 or 64-bit
T_ADDRESS, // 32 or 64-bit
T_DOUBLE, // 64-bit
T_LONG, // 64-bit
T_VOID, // 32 or 64-bit (jump-tables are at the end of the constant table for code emission reasons)
T_ILLEGAL
};
static int type_to_size_in_bytes(BasicType t) {
switch (t) {
case T_LONG: return sizeof(jlong );
case T_FLOAT: return sizeof(jfloat );
case T_DOUBLE: return sizeof(jdouble);
// We use T_VOID as marker for jump-table entries (labels) which
// need an interal word relocation.
case T_VOID:
case T_ADDRESS:
case T_OBJECT: return sizeof(jobject);
}
ShouldNotReachHere();
return -1;
}
void Compile::ConstantTable::calculate_offsets_and_size() {
int size = 0;
for (int t = 0; type_order[t] != T_ILLEGAL; t++) {
BasicType type = type_order[t];
for (int i = 0; i < _constants.length(); i++) {
Constant con = _constants.at(i);
if (con.type() != type) continue; // Skip other types.
// Align size for type.
int typesize = type_to_size_in_bytes(con.type());
size = align_size_up(size, typesize);
// Set offset.
con.set_offset(size);
_constants.at_put(i, con);
// Add type size.
size = size + typesize;
}
}
// Align size up to the next section start (which is insts; see
// CodeBuffer::align_at_start).
assert(_size == -1, "already set?");
_size = align_size_up(size, CodeEntryAlignment);
if (Matcher::constant_table_absolute_addressing) {
set_table_base_offset(0); // No table base offset required
} else {
if (UseRDPCForConstantTableBase) {
// table base offset is set in MachConstantBaseNode::emit
} else {
// When RDPC is not used, the table base is set into the middle of
// the constant table.
int half_size = _size / 2;
assert(half_size * 2 == _size, "sanity");
set_table_base_offset(-half_size);
}
}
}
void Compile::ConstantTable::emit(CodeBuffer& cb) {
MacroAssembler _masm(&cb);
for (int t = 0; type_order[t] != T_ILLEGAL; t++) {
BasicType type = type_order[t];
for (int i = 0; i < _constants.length(); i++) {
Constant con = _constants.at(i);
if (con.type() != type) continue; // Skip other types.
address constant_addr;
switch (con.type()) {
case T_LONG: constant_addr = _masm.long_constant( con.get_jlong() ); break;
case T_FLOAT: constant_addr = _masm.float_constant( con.get_jfloat() ); break;
case T_DOUBLE: constant_addr = _masm.double_constant(con.get_jdouble()); break;
case T_OBJECT: {
jobject obj = con.get_jobject();
int oop_index = _masm.oop_recorder()->find_index(obj);
constant_addr = _masm.address_constant((address) obj, oop_Relocation::spec(oop_index));
break;
}
case T_ADDRESS: {
address addr = (address) con.get_jobject();
constant_addr = _masm.address_constant(addr);
break;
}
// We use T_VOID as marker for jump-table entries (labels) which
// need an interal word relocation.
case T_VOID: {
// Write a dummy word. The real value is filled in later
// in fill_jump_table_in_constant_table.
address addr = (address) con.get_jobject();
constant_addr = _masm.address_constant(addr);
break;
}
default: ShouldNotReachHere();
}
assert(constant_addr != NULL, "consts section too small");
assert((constant_addr - _masm.code()->consts()->start()) == con.offset(), err_msg("must be: %d == %d", constant_addr - _masm.code()->consts()->start(), con.offset()));
}
}
}
int Compile::ConstantTable::find_offset(Constant& con) const {
int idx = _constants.find(con);
assert(idx != -1, "constant must be in constant table");
int offset = _constants.at(idx).offset();
assert(offset != -1, "constant table not emitted yet?");
return offset;
}
void Compile::ConstantTable::add(Constant& con) {
if (con.can_be_reused()) {
int idx = _constants.find(con);
if (idx != -1 && _constants.at(idx).can_be_reused()) {
return;
}
}
(void) _constants.append(con);
}
Compile::Constant Compile::ConstantTable::add(BasicType type, jvalue value) {
Constant con(type, value);
add(con);
return con;
}
Compile::Constant Compile::ConstantTable::add(MachOper* oper) {
jvalue value;
BasicType type = oper->type()->basic_type();
switch (type) {
case T_LONG: value.j = oper->constantL(); break;
case T_FLOAT: value.f = oper->constantF(); break;
case T_DOUBLE: value.d = oper->constantD(); break;
case T_OBJECT:
case T_ADDRESS: value.l = (jobject) oper->constant(); break;
default: ShouldNotReachHere();
}
return add(type, value);
}
Compile::Constant Compile::ConstantTable::allocate_jump_table(MachConstantNode* n) {
jvalue value;
// We can use the node pointer here to identify the right jump-table
// as this method is called from Compile::Fill_buffer right before
// the MachNodes are emitted and the jump-table is filled (means the
// MachNode pointers do not change anymore).
value.l = (jobject) n;
Constant con(T_VOID, value, false); // Labels of a jump-table cannot be reused.
for (uint i = 0; i < n->outcnt(); i++) {
add(con);
}
return con;
}
void Compile::ConstantTable::fill_jump_table(CodeBuffer& cb, MachConstantNode* n, GrowableArray<Label*> labels) const {
// If called from Compile::scratch_emit_size do nothing.
if (Compile::current()->in_scratch_emit_size()) return;
assert(labels.is_nonempty(), "must be");
assert((uint) labels.length() == n->outcnt(), err_msg("must be equal: %d == %d", labels.length(), n->outcnt()));
// Since MachConstantNode::constant_offset() also contains
// table_base_offset() we need to subtract the table_base_offset()
// to get the plain offset into the constant table.
int offset = n->constant_offset() - table_base_offset();
MacroAssembler _masm(&cb);
address* jump_table_base = (address*) (_masm.code()->consts()->start() + offset);
for (int i = 0; i < labels.length(); i++) {
address* constant_addr = &jump_table_base[i];
assert(*constant_addr == (address) n, "all jump-table entries must contain node pointer");
*constant_addr = cb.consts()->target(*labels.at(i), (address) constant_addr);
cb.consts()->relocate((address) constant_addr, relocInfo::internal_word_type);
}
}
src/share/vm/opto/compile.hpp
浏览文件 @ 5928bc3c
......@@ -48,7 +48,10 @@ class ConnectionGraph;
class InlineTree;
class Int_Array;
class Matcher;
class MachConstantNode;
class MachConstantBaseNode;
class MachNode;
class MachOper;
class MachSafePointNode;
class Node;
class Node_Array;
......@@ -139,6 +142,81 @@ class Compile : public Phase {
trapHistLength = methodDataOopDesc::_trap_hist_limit
};
// Constant entry of the constant table.
class Constant {
private:
BasicType _type;
jvalue _value;
int _offset; // offset of this constant (in bytes) relative to the constant table base.
bool _can_be_reused; // true (default) if the value can be shared with other users.
public:
Constant() : _type(T_ILLEGAL), _offset(-1), _can_be_reused(true) { _value.l = 0; }
Constant(BasicType type, jvalue value, bool can_be_reused = true) :
_type(type),
_value(value),
_offset(-1),
_can_be_reused(can_be_reused)
{}
bool operator==(const Constant& other);
BasicType type() const { return _type; }
jlong get_jlong() const { return _value.j; }
jfloat get_jfloat() const { return _value.f; }
jdouble get_jdouble() const { return _value.d; }
jobject get_jobject() const { return _value.l; }
int offset() const { return _offset; }
void set_offset(int offset) { _offset = offset; }
bool can_be_reused() const { return _can_be_reused; }
};
// Constant table.
class ConstantTable {
private:
GrowableArray<Constant> _constants; // Constants of this table.
int _size; // Size in bytes the emitted constant table takes (including padding).
int _table_base_offset; // Offset of the table base that gets added to the constant offsets.
public:
ConstantTable() :
_size(-1),
_table_base_offset(-1) // We can use -1 here since the constant table is always bigger than 2 bytes (-(size / 2), see MachConstantBaseNode::emit).
{}
int size() const { assert(_size != -1, "size not yet calculated"); return _size; }
void set_table_base_offset(int x) { assert(_table_base_offset == -1, "set only once"); _table_base_offset = x; }
int table_base_offset() const { assert(_table_base_offset != -1, "table base offset not yet set"); return _table_base_offset; }
void emit(CodeBuffer& cb);
// Returns the offset of the last entry (the top) of the constant table.
int top_offset() const { assert(_constants.top().offset() != -1, "constant not yet bound"); return _constants.top().offset(); }
void calculate_offsets_and_size();
int find_offset(Constant& con) const;
void add(Constant& con);
Constant add(BasicType type, jvalue value);
Constant add(MachOper* oper);
Constant add(jfloat f) {
jvalue value; value.f = f;
return add(T_FLOAT, value);
}
Constant add(jdouble d) {
jvalue value; value.d = d;
return add(T_DOUBLE, value);
}
// Jump table
Constant allocate_jump_table(MachConstantNode* n);
void fill_jump_table(CodeBuffer& cb, MachConstantNode* n, GrowableArray<Label*> labels) const;
};
private:
// Fixed parameters to this compilation.
const int _compile_id;
......@@ -212,6 +290,11 @@ class Compile : public Phase {
Node* _recent_alloc_obj;
Node* _recent_alloc_ctl;
// Constant table
ConstantTable _constant_table; // The constant table for this compile.
MachConstantBaseNode* _mach_constant_base_node; // Constant table base node singleton.
// Blocked array of debugging and profiling information,
// tracked per node.
enum { _log2_node_notes_block_size = 8,
......@@ -272,6 +355,8 @@ class Compile : public Phase {
static int _CompiledZap_count; // counter compared against CompileZap[First/Last]
BufferBlob* _scratch_buffer_blob; // For temporary code buffers.
relocInfo* _scratch_locs_memory; // For temporary code buffers.
int _scratch_const_size; // For temporary code buffers.
bool _in_scratch_emit_size; // true when in scratch_emit_size.
public:
// Accessors
......@@ -454,6 +539,12 @@ class Compile : public Phase {
_recent_alloc_obj = obj;
}
// Constant table
ConstantTable& constant_table() { return _constant_table; }
MachConstantBaseNode* mach_constant_base_node();
bool has_mach_constant_base_node() const { return _mach_constant_base_node != NULL; }
// Handy undefined Node
Node* top() const { return _top; }
......@@ -605,13 +696,16 @@ class Compile : public Phase {
Dependencies* dependencies() { return env()->dependencies(); }
static int CompiledZap_count() { return _CompiledZap_count; }
BufferBlob* scratch_buffer_blob() { return _scratch_buffer_blob; }
void init_scratch_buffer_blob();
void init_scratch_buffer_blob(int const_size);
void clear_scratch_buffer_blob();
void set_scratch_buffer_blob(BufferBlob* b) { _scratch_buffer_blob = b; }
relocInfo* scratch_locs_memory() { return _scratch_locs_memory; }
void set_scratch_locs_memory(relocInfo* b) { _scratch_locs_memory = b; }
// emit to scratch blob, report resulting size
uint scratch_emit_size(const Node* n);
void set_in_scratch_emit_size(bool x) { _in_scratch_emit_size = x; }
bool in_scratch_emit_size() const { return _in_scratch_emit_size; }
enum ScratchBufferBlob {
MAX_inst_size = 1024,
......@@ -692,7 +786,7 @@ class Compile : public Phase {
void Fill_buffer();
// Determine which variable sized branches can be shortened
void Shorten_branches(Label *labels, int& code_size, int& reloc_size, int& stub_size, int& const_size);
void Shorten_branches(Label *labels, int& code_size, int& reloc_size, int& stub_size);
// Compute the size of first NumberOfLoopInstrToAlign instructions
// at the head of a loop.
......
src/share/vm/opto/gcm.cpp
浏览文件 @ 5928bc3c
......@@ -89,7 +89,7 @@ void PhaseCFG::replace_block_proj_ctrl( Node *n ) {
assert(in0 != NULL, "Only control-dependent");
const Node *p = in0->is_block_proj();
if (p != NULL && p != n) { // Control from a block projection?
assert(!n->pinned() || n->is_SafePointScalarObject(), "only SafePointScalarObject pinned node is expected here");
assert(!n->pinned() || n->is_MachConstantBase() || n->is_SafePointScalarObject(), "only pinned MachConstantBase or SafePointScalarObject node is expected here");
// Find trailing Region
Block *pb = _bbs[in0->_idx]; // Block-projection already has basic block
uint j = 0;
......
src/share/vm/opto/machnode.cpp
浏览文件 @ 5928bc3c
......@@ -489,6 +489,20 @@ void MachTypeNode::dump_spec(outputStream *st) const {
}
#endif
//=============================================================================
int MachConstantNode::constant_offset() {
int offset = _constant.offset();
// Bind the offset lazily.
if (offset == -1) {
Compile::ConstantTable& constant_table = Compile::current()->constant_table();
offset = constant_table.table_base_offset() + constant_table.find_offset(_constant);
_constant.set_offset(offset);
}
return offset;
}
//=============================================================================
#ifndef PRODUCT
void MachNullCheckNode::format( PhaseRegAlloc *ra_, outputStream *st ) const {
......
src/share/vm/opto/machnode.hpp
浏览文件 @ 5928bc3c
......@@ -231,9 +231,6 @@ public:
// Return number of relocatable values contained in this instruction
virtual int reloc() const { return 0; }
// Return number of words used for double constants in this instruction
virtual int const_size() const { return 0; }
// Hash and compare over operands. Used to do GVN on machine Nodes.
virtual uint hash() const;
virtual uint cmp( const Node &n ) const;
......@@ -348,6 +345,65 @@ public:
#endif
};
//------------------------------MachConstantBaseNode--------------------------
// Machine node that represents the base address of the constant table.
class MachConstantBaseNode : public MachIdealNode {
public:
static const RegMask& _out_RegMask; // We need the out_RegMask statically in MachConstantNode::in_RegMask().
public:
MachConstantBaseNode() : MachIdealNode() {
init_class_id(Class_MachConstantBase);
}
virtual const class Type* bottom_type() const { return TypeRawPtr::NOTNULL; }
virtual uint ideal_reg() const { return Op_RegP; }
virtual uint oper_input_base() const { return 1; }
virtual void emit(CodeBuffer& cbuf, PhaseRegAlloc* ra_) const;
virtual uint size(PhaseRegAlloc* ra_) const;
virtual bool pinned() const { return UseRDPCForConstantTableBase; }
static const RegMask& static_out_RegMask() { return _out_RegMask; }
virtual const RegMask& out_RegMask() const { return static_out_RegMask(); }
#ifndef PRODUCT
virtual const char* Name() const { return "MachConstantBaseNode"; }
virtual void format(PhaseRegAlloc*, outputStream* st) const;
#endif
};
//------------------------------MachConstantNode-------------------------------
// Machine node that holds a constant which is stored in the constant table.
class MachConstantNode : public MachNode {
protected:
Compile::Constant _constant; // This node's constant.
public:
MachConstantNode() : MachNode() {
init_class_id(Class_MachConstant);
}
virtual void eval_constant(Compile* C) {
#ifdef ASSERT
tty->print("missing MachConstantNode eval_constant function: ");
dump();
#endif
ShouldNotCallThis();
}
virtual const RegMask &in_RegMask(uint idx) const {
if (idx == mach_constant_base_node_input())
return MachConstantBaseNode::static_out_RegMask();
return MachNode::in_RegMask(idx);
}
// Input edge of MachConstantBaseNode.
uint mach_constant_base_node_input() const { return req() - 1; }
int constant_offset();
int constant_offset() const { return ((MachConstantNode*) this)->constant_offset(); }
};
//------------------------------MachUEPNode-----------------------------------
// Machine Unvalidated Entry Point Node
class MachUEPNode : public MachIdealNode {
......
src/share/vm/opto/matcher.hpp
浏览文件 @ 5928bc3c
......@@ -365,6 +365,10 @@ public:
// registers? True for Intel but false for most RISCs
static const bool clone_shift_expressions;
// Should constant table entries be accessed with loads using
// absolute addressing? True for x86 but false for most RISCs.
static const bool constant_table_absolute_addressing;
static bool narrow_oop_use_complex_address();
// Generate implicit null check for narrow oops if it can fold
......
src/share/vm/opto/node.hpp
浏览文件 @ 5928bc3c
......@@ -81,6 +81,8 @@ class MachCallLeafNode;
class MachCallNode;
class MachCallRuntimeNode;
class MachCallStaticJavaNode;
class MachConstantBaseNode;
class MachConstantNode;
class MachIfNode;
class MachNode;
class MachNullCheckNode;
......@@ -566,10 +568,12 @@ public:
DEFINE_CLASS_ID(MachCallDynamicJava, MachCallJava, 1)
DEFINE_CLASS_ID(MachCallRuntime, MachCall, 1)
DEFINE_CLASS_ID(MachCallLeaf, MachCallRuntime, 0)
DEFINE_CLASS_ID(MachSpillCopy, Mach, 1)
DEFINE_CLASS_ID(MachNullCheck, Mach, 2)
DEFINE_CLASS_ID(MachIf, Mach, 3)
DEFINE_CLASS_ID(MachTemp, Mach, 4)
DEFINE_CLASS_ID(MachSpillCopy, Mach, 1)
DEFINE_CLASS_ID(MachNullCheck, Mach, 2)
DEFINE_CLASS_ID(MachIf, Mach, 3)
DEFINE_CLASS_ID(MachTemp, Mach, 4)
DEFINE_CLASS_ID(MachConstantBase, Mach, 5)
DEFINE_CLASS_ID(MachConstant, Mach, 6)
DEFINE_CLASS_ID(Proj, Node, 2)
DEFINE_CLASS_ID(CatchProj, Proj, 0)
......@@ -734,6 +738,8 @@ public:
DEFINE_CLASS_QUERY(MachCallLeaf)
DEFINE_CLASS_QUERY(MachCallRuntime)
DEFINE_CLASS_QUERY(MachCallStaticJava)
DEFINE_CLASS_QUERY(MachConstantBase)
DEFINE_CLASS_QUERY(MachConstant)
DEFINE_CLASS_QUERY(MachIf)
DEFINE_CLASS_QUERY(MachNullCheck)
DEFINE_CLASS_QUERY(MachReturn)
......
src/share/vm/opto/output.cpp
浏览文件 @ 5928bc3c
......@@ -61,11 +61,6 @@ void Compile::Output() {
// RootNode goes
assert( _cfg->_broot->_nodes.size() == 0, "" );
// Initialize the space for the BufferBlob used to find and verify
// instruction size in MachNode::emit_size()
init_scratch_buffer_blob();
if (failing()) return; // Out of memory
// The number of new nodes (mostly MachNop) is proportional to
// the number of java calls and inner loops which are aligned.
if ( C->check_node_count((NodeLimitFudgeFactor + C->java_calls()*3 +
......@@ -333,7 +328,7 @@ void Compile::compute_loop_first_inst_sizes() {
//----------------------Shorten_branches---------------------------------------
// The architecture description provides short branch variants for some long
// branch instructions. Replace eligible long branches with short branches.
void Compile::Shorten_branches(Label *labels, int& code_size, int& reloc_size, int& stub_size, int& const_size) {
void Compile::Shorten_branches(Label *labels, int& code_size, int& reloc_size, int& stub_size) {
// fill in the nop array for bundling computations
MachNode *_nop_list[Bundle::_nop_count];
......@@ -353,12 +348,11 @@ void Compile::Shorten_branches(Label *labels, int& code_size, int& reloc_size, i
// Size in bytes of all relocation entries, including those in local stubs.
// Start with 2-bytes of reloc info for the unvalidated entry point
reloc_size = 1; // Number of relocation entries
const_size = 0; // size of fp constants in words
// Make three passes. The first computes pessimistic blk_starts,
// relative jmp_end, reloc_size and const_size information.
// The second performs short branch substitution using the pessimistic
// sizing. The third inserts nops where needed.
// relative jmp_end and reloc_size information. The second performs
// short branch substitution using the pessimistic sizing. The
// third inserts nops where needed.
Node *nj; // tmp
......@@ -381,7 +375,6 @@ void Compile::Shorten_branches(Label *labels, int& code_size, int& reloc_size, i
MachNode *mach = nj->as_Mach();
blk_size += (mach->alignment_required() - 1) * relocInfo::addr_unit(); // assume worst case padding
reloc_size += mach->reloc();
const_size += mach->const_size();
if( mach->is_MachCall() ) {
MachCallNode *mcall = mach->as_MachCall();
// This destination address is NOT PC-relative
......@@ -398,10 +391,6 @@ void Compile::Shorten_branches(Label *labels, int& code_size, int& reloc_size, i
if (min_offset_from_last_call == 0) {
blk_size += nop_size;
}
} else if (mach->ideal_Opcode() == Op_Jump) {
const_size += b->_num_succs; // Address table size
// The size is valid even for 64 bit since it is
// multiplied by 2*jintSize on this method exit.
}
}
min_offset_from_last_call += inst_size;
......@@ -562,10 +551,6 @@ void Compile::Shorten_branches(Label *labels, int& code_size, int& reloc_size, i
// a relocation index.
// The CodeBuffer will expand the locs array if this estimate is too low.
reloc_size *= 10 / sizeof(relocInfo);
// Adjust const_size to number of bytes
const_size *= 2*jintSize; // both float and double take two words per entry
}
//------------------------------FillLocArray-----------------------------------
......@@ -1102,10 +1087,39 @@ void Compile::Fill_buffer() {
blk_labels[i].init();
}
if (has_mach_constant_base_node()) {
// Fill the constant table.
// Note: This must happen before Shorten_branches.
for (i = 0; i < _cfg->_num_blocks; i++) {
Block* b = _cfg->_blocks[i];
for (uint j = 0; j < b->_nodes.size(); j++) {
Node* n = b->_nodes[j];
// If the node is a MachConstantNode evaluate the constant
// value section.
if (n->is_MachConstant()) {
MachConstantNode* machcon = n->as_MachConstant();
machcon->eval_constant(C);
}
}
}
// Calculate the offsets of the constants and the size of the
// constant table (including the padding to the next section).
constant_table().calculate_offsets_and_size();
const_req = constant_table().size();
}
// Initialize the space for the BufferBlob used to find and verify
// instruction size in MachNode::emit_size()
init_scratch_buffer_blob(const_req);
if (failing()) return; // Out of memory
// If this machine supports different size branch offsets, then pre-compute
// the length of the blocks
if( _matcher->is_short_branch_offset(-1, 0) ) {
Shorten_branches(blk_labels, code_req, locs_req, stub_req, const_req);
Shorten_branches(blk_labels, code_req, locs_req, stub_req);
labels_not_set = false;
}
......@@ -1121,12 +1135,12 @@ void Compile::Fill_buffer() {
code_req = const_req = stub_req = exception_handler_req = deopt_handler_req = 0x10; // force expansion
int total_req =
const_req +
code_req +
pad_req +
stub_req +
exception_handler_req +
deopt_handler_req + // deopt handler
const_req;
deopt_handler_req; // deopt handler
if (has_method_handle_invokes())
total_req += deopt_handler_req; // deopt MH handler
......@@ -1180,6 +1194,11 @@ void Compile::Fill_buffer() {
NonSafepointEmitter non_safepoints(this); // emit non-safepoints lazily
// Emit the constant table.
if (has_mach_constant_base_node()) {
constant_table().emit(*cb);
}
// ------------------
// Now fill in the code buffer
Node *delay_slot = NULL;
......@@ -1196,12 +1215,13 @@ void Compile::Fill_buffer() {
cb->flush_bundle(true);
// Define the label at the beginning of the basic block
if( labels_not_set )
MacroAssembler(cb).bind( blk_labels[b->_pre_order] );
else
assert( blk_labels[b->_pre_order].loc_pos() == cb->insts_size(),
"label position does not match code offset" );
if (labels_not_set) {
MacroAssembler(cb).bind(blk_labels[b->_pre_order]);
} else {
assert(blk_labels[b->_pre_order].loc_pos() == cb->insts_size(),
err_msg("label position does not match code offset: %d != %d",
blk_labels[b->_pre_order].loc_pos(), cb->insts_size()));
}
uint last_inst = b->_nodes.size();
......@@ -1718,9 +1738,17 @@ void Compile::ScheduleAndBundle() {
// Create a data structure for all the scheduling information
Scheduling scheduling(Thread::current()->resource_area(), *this);
// Initialize the space for the BufferBlob used to find and verify
// instruction size in MachNode::emit_size()
init_scratch_buffer_blob(MAX_const_size);
if (failing()) return; // Out of memory
// Walk backwards over each basic block, computing the needed alignment
// Walk over all the basic blocks
scheduling.DoScheduling();
// Clear the BufferBlob used for scheduling.
clear_scratch_buffer_blob();
}
//------------------------------ComputeLocalLatenciesForward-------------------
......
src/share/vm/opto/postaloc.cpp
浏览文件 @ 5928bc3c
......@@ -200,6 +200,19 @@ int PhaseChaitin::elide_copy( Node *n, int k, Block *current_block, Node_List &v
// then reloaded BUT survives in a register the whole way.
Node *val = skip_copies(n->in(k));
if (val == x && nk_idx != 0 &&
regnd[nk_reg] != NULL && regnd[nk_reg] != x &&
n2lidx(x) == n2lidx(regnd[nk_reg])) {
// When rematerialzing nodes and stretching lifetimes, the
// allocator will reuse the original def for multidef LRG instead
// of the current reaching def because it can't know it's safe to
// do so. After allocation completes if they are in the same LRG
// then it should use the current reaching def instead.
n->set_req(k, regnd[nk_reg]);
blk_adjust += yank_if_dead(val, current_block, &value, &regnd);
val = skip_copies(n->in(k));
}
if( val == x ) return blk_adjust; // No progress?
bool single = is_single_register(val->ideal_reg());
......
src/share/vm/utilities/debug.cpp
浏览文件 @ 5928bc3c
......@@ -399,8 +399,14 @@ extern "C" void nm(intptr_t p) {
extern "C" void disnm(intptr_t p) {
Command c("disnm");
CodeBlob* cb = CodeCache::find_blob((address) p);
cb->print();
Disassembler::decode(cb);
nmethod* nm = cb->as_nmethod_or_null();
if (nm) {
nm->print();
Disassembler::decode(nm);
} else {
cb->print();
Disassembler::decode(cb);
}
}
......
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