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提交 4346457a 编写于 作者: R Richard Henderson 提交者： Aurelien Jarno
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tcg-arm: Use TCG_REG_TMP name for the tcg temporary 

Don't hard-code R8.
Reviewed-by: NAurelien Jarno <aurelien@aurel32.net>
Signed-off-by: NRichard Henderson <rth@twiddle.net>
上级 0637c56c
隐藏空白更改
内联 并排
Showing with 60 addition and 58 deletion
tcg/arm/tcg-target.c
浏览文件 @ 4346457a
......@@ -113,6 +113,8 @@ static const int tcg_target_call_oarg_regs[2] = {
TCG_REG_R0, TCG_REG_R1
};
#define TCG_REG_TMP TCG_REG_R8
static inline void reloc_abs32(void *code_ptr, tcg_target_long target)
{
*(uint32_t *) code_ptr = target;
......@@ -556,10 +558,10 @@ static inline void tcg_out_mul32(TCGContext *s,
tcg_out32(s, (cond << 28) | (rd << 16) | (0 << 12) |
(rm << 8) | 0x90 | rs);
else {
tcg_out32(s, (cond << 28) | ( 8 << 16) | (0 << 12) |
tcg_out32(s, (cond << 28) | (TCG_REG_TMP << 16) | (0 << 12) |
(rs << 8) | 0x90 | rm);
tcg_out_dat_reg(s, cond, ARITH_MOV,
rd, 0, TCG_REG_R8, SHIFT_IMM_LSL(0));
rd, 0, TCG_REG_TMP, SHIFT_IMM_LSL(0));
}
}
......@@ -574,8 +576,8 @@ static inline void tcg_out_umull32(TCGContext *s,
(rd1 << 16) | (rd0 << 12) | (rm << 8) | rs);
else {
tcg_out_dat_reg(s, cond, ARITH_MOV,
TCG_REG_R8, 0, rm, SHIFT_IMM_LSL(0));
tcg_out32(s, (cond << 28) | 0x800098 |
TCG_REG_TMP, 0, rm, SHIFT_IMM_LSL(0));
tcg_out32(s, (cond << 28) | 0x800090 | TCG_REG_TMP |
(rd1 << 16) | (rd0 << 12) | (rs << 8));
}
}
......@@ -591,8 +593,8 @@ static inline void tcg_out_smull32(TCGContext *s,
(rd1 << 16) | (rd0 << 12) | (rm << 8) | rs);
else {
tcg_out_dat_reg(s, cond, ARITH_MOV,
TCG_REG_R8, 0, rm, SHIFT_IMM_LSL(0));
tcg_out32(s, (cond << 28) | 0xc00098 |
TCG_REG_TMP, 0, rm, SHIFT_IMM_LSL(0));
tcg_out32(s, (cond << 28) | 0xc00090 | TCG_REG_TMP |
(rd1 << 16) | (rd0 << 12) | (rs << 8));
}
}
......@@ -662,11 +664,11 @@ static inline void tcg_out_bswap16s(TCGContext *s, int cond, int rd, int rn)
tcg_out32(s, 0x06ff0fb0 | (cond << 28) | (rd << 12) | rn);
} else {
tcg_out_dat_reg(s, cond, ARITH_MOV,
TCG_REG_R8, 0, rn, SHIFT_IMM_LSL(24));
TCG_REG_TMP, 0, rn, SHIFT_IMM_LSL(24));
tcg_out_dat_reg(s, cond, ARITH_MOV,
TCG_REG_R8, 0, TCG_REG_R8, SHIFT_IMM_ASR(16));
TCG_REG_TMP, 0, TCG_REG_TMP, SHIFT_IMM_ASR(16));
tcg_out_dat_reg(s, cond, ARITH_ORR,
rd, TCG_REG_R8, rn, SHIFT_IMM_LSR(8));
rd, TCG_REG_TMP, rn, SHIFT_IMM_LSR(8));
}
}
......@@ -677,11 +679,11 @@ static inline void tcg_out_bswap16(TCGContext *s, int cond, int rd, int rn)
tcg_out32(s, 0x06bf0fb0 | (cond << 28) | (rd << 12) | rn);
} else {
tcg_out_dat_reg(s, cond, ARITH_MOV,
TCG_REG_R8, 0, rn, SHIFT_IMM_LSL(24));
TCG_REG_TMP, 0, rn, SHIFT_IMM_LSL(24));
tcg_out_dat_reg(s, cond, ARITH_MOV,
TCG_REG_R8, 0, TCG_REG_R8, SHIFT_IMM_LSR(16));
TCG_REG_TMP, 0, TCG_REG_TMP, SHIFT_IMM_LSR(16));
tcg_out_dat_reg(s, cond, ARITH_ORR,
rd, TCG_REG_R8, rn, SHIFT_IMM_LSR(8));
rd, TCG_REG_TMP, rn, SHIFT_IMM_LSR(8));
}
}
......@@ -694,10 +696,10 @@ static inline void tcg_out_bswap16st(TCGContext *s, int cond, int rd, int rn)
tcg_out32(s, 0x06bf0fb0 | (cond << 28) | (rd << 12) | rn);
} else {
tcg_out_dat_reg(s, cond, ARITH_MOV,
TCG_REG_R8, 0, rn, SHIFT_IMM_LSR(8));
tcg_out_dat_imm(s, cond, ARITH_AND, TCG_REG_R8, TCG_REG_R8, 0xff);
TCG_REG_TMP, 0, rn, SHIFT_IMM_LSR(8));
tcg_out_dat_imm(s, cond, ARITH_AND, TCG_REG_TMP, TCG_REG_TMP, 0xff);
tcg_out_dat_reg(s, cond, ARITH_ORR,
rd, TCG_REG_R8, rn, SHIFT_IMM_LSL(8));
rd, TCG_REG_TMP, rn, SHIFT_IMM_LSL(8));
}
}
......@@ -708,13 +710,13 @@ static inline void tcg_out_bswap32(TCGContext *s, int cond, int rd, int rn)
tcg_out32(s, 0x06bf0f30 | (cond << 28) | (rd << 12) | rn);
} else {
tcg_out_dat_reg(s, cond, ARITH_EOR,
TCG_REG_R8, rn, rn, SHIFT_IMM_ROR(16));
TCG_REG_TMP, rn, rn, SHIFT_IMM_ROR(16));
tcg_out_dat_imm(s, cond, ARITH_BIC,
TCG_REG_R8, TCG_REG_R8, 0xff | 0x800);
TCG_REG_TMP, TCG_REG_TMP, 0xff | 0x800);
tcg_out_dat_reg(s, cond, ARITH_MOV,
rd, 0, rn, SHIFT_IMM_ROR(8));
tcg_out_dat_reg(s, cond, ARITH_EOR,
rd, rd, TCG_REG_R8, SHIFT_IMM_LSR(8));
rd, rd, TCG_REG_TMP, SHIFT_IMM_LSR(8));
}
}
......@@ -927,8 +929,8 @@ static inline void tcg_out_ld32u(TCGContext *s, int cond,
int rd, int rn, int32_t offset)
{
if (offset > 0xfff || offset < -0xfff) {
tcg_out_movi32(s, cond, TCG_REG_R8, offset);
tcg_out_ld32_r(s, cond, rd, rn, TCG_REG_R8);
tcg_out_movi32(s, cond, TCG_REG_TMP, offset);
tcg_out_ld32_r(s, cond, rd, rn, TCG_REG_TMP);
} else
tcg_out_ld32_12(s, cond, rd, rn, offset);
}
......@@ -937,8 +939,8 @@ static inline void tcg_out_st32(TCGContext *s, int cond,
int rd, int rn, int32_t offset)
{
if (offset > 0xfff || offset < -0xfff) {
tcg_out_movi32(s, cond, TCG_REG_R8, offset);
tcg_out_st32_r(s, cond, rd, rn, TCG_REG_R8);
tcg_out_movi32(s, cond, TCG_REG_TMP, offset);
tcg_out_st32_r(s, cond, rd, rn, TCG_REG_TMP);
} else
tcg_out_st32_12(s, cond, rd, rn, offset);
}
......@@ -947,8 +949,8 @@ static inline void tcg_out_ld16u(TCGContext *s, int cond,
int rd, int rn, int32_t offset)
{
if (offset > 0xff || offset < -0xff) {
tcg_out_movi32(s, cond, TCG_REG_R8, offset);
tcg_out_ld16u_r(s, cond, rd, rn, TCG_REG_R8);
tcg_out_movi32(s, cond, TCG_REG_TMP, offset);
tcg_out_ld16u_r(s, cond, rd, rn, TCG_REG_TMP);
} else
tcg_out_ld16u_8(s, cond, rd, rn, offset);
}
......@@ -957,8 +959,8 @@ static inline void tcg_out_ld16s(TCGContext *s, int cond,
int rd, int rn, int32_t offset)
{
if (offset > 0xff || offset < -0xff) {
tcg_out_movi32(s, cond, TCG_REG_R8, offset);
tcg_out_ld16s_r(s, cond, rd, rn, TCG_REG_R8);
tcg_out_movi32(s, cond, TCG_REG_TMP, offset);
tcg_out_ld16s_r(s, cond, rd, rn, TCG_REG_TMP);
} else
tcg_out_ld16s_8(s, cond, rd, rn, offset);
}
......@@ -967,8 +969,8 @@ static inline void tcg_out_st16(TCGContext *s, int cond,
int rd, int rn, int32_t offset)
{
if (offset > 0xff || offset < -0xff) {
tcg_out_movi32(s, cond, TCG_REG_R8, offset);
tcg_out_st16_r(s, cond, rd, rn, TCG_REG_R8);
tcg_out_movi32(s, cond, TCG_REG_TMP, offset);
tcg_out_st16_r(s, cond, rd, rn, TCG_REG_TMP);
} else
tcg_out_st16_8(s, cond, rd, rn, offset);
}
......@@ -977,8 +979,8 @@ static inline void tcg_out_ld8u(TCGContext *s, int cond,
int rd, int rn, int32_t offset)
{
if (offset > 0xfff || offset < -0xfff) {
tcg_out_movi32(s, cond, TCG_REG_R8, offset);
tcg_out_ld8_r(s, cond, rd, rn, TCG_REG_R8);
tcg_out_movi32(s, cond, TCG_REG_TMP, offset);
tcg_out_ld8_r(s, cond, rd, rn, TCG_REG_TMP);
} else
tcg_out_ld8_12(s, cond, rd, rn, offset);
}
......@@ -987,8 +989,8 @@ static inline void tcg_out_ld8s(TCGContext *s, int cond,
int rd, int rn, int32_t offset)
{
if (offset > 0xff || offset < -0xff) {
tcg_out_movi32(s, cond, TCG_REG_R8, offset);
tcg_out_ld8s_r(s, cond, rd, rn, TCG_REG_R8);
tcg_out_movi32(s, cond, TCG_REG_TMP, offset);
tcg_out_ld8s_r(s, cond, rd, rn, TCG_REG_TMP);
} else
tcg_out_ld8s_8(s, cond, rd, rn, offset);
}
......@@ -997,8 +999,8 @@ static inline void tcg_out_st8(TCGContext *s, int cond,
int rd, int rn, int32_t offset)
{
if (offset > 0xfff || offset < -0xfff) {
tcg_out_movi32(s, cond, TCG_REG_R8, offset);
tcg_out_st8_r(s, cond, rd, rn, TCG_REG_R8);
tcg_out_movi32(s, cond, TCG_REG_TMP, offset);
tcg_out_st8_r(s, cond, rd, rn, TCG_REG_TMP);
} else
tcg_out_st8_12(s, cond, rd, rn, offset);
}
......@@ -1026,10 +1028,10 @@ static inline void tcg_out_goto(TCGContext *s, int cond, uint32_t addr)
tcg_out_ld32_12(s, COND_AL, TCG_REG_PC, TCG_REG_PC, -4);
tcg_out32(s, addr);
} else {
tcg_out_movi32(s, cond, TCG_REG_R8, val - 8);
tcg_out_movi32(s, cond, TCG_REG_TMP, val - 8);
tcg_out_dat_reg(s, cond, ARITH_ADD,
TCG_REG_PC, TCG_REG_PC,
TCG_REG_R8, SHIFT_IMM_LSL(0));
TCG_REG_TMP, SHIFT_IMM_LSL(0));
}
}
}
......@@ -1133,11 +1135,11 @@ static TCGReg NAME(TCGContext *s, TCGReg argreg, ARGTYPE arg) \
}
DEFINE_TCG_OUT_ARG(tcg_out_arg_imm32, uint32_t, tcg_out_movi32,
(tcg_out_movi32(s, COND_AL, TCG_REG_R8, arg), arg = TCG_REG_R8))
(tcg_out_movi32(s, COND_AL, TCG_REG_TMP, arg), arg = TCG_REG_TMP))
DEFINE_TCG_OUT_ARG(tcg_out_arg_reg8, TCGReg, tcg_out_ext8u,
(tcg_out_ext8u(s, COND_AL, TCG_REG_R8, arg), arg = TCG_REG_R8))
(tcg_out_ext8u(s, COND_AL, TCG_REG_TMP, arg), arg = TCG_REG_TMP))
DEFINE_TCG_OUT_ARG(tcg_out_arg_reg16, TCGReg, tcg_out_ext16u,
(tcg_out_ext16u(s, COND_AL, TCG_REG_R8, arg), arg = TCG_REG_R8))
(tcg_out_ext16u(s, COND_AL, TCG_REG_TMP, arg), arg = TCG_REG_TMP))
DEFINE_TCG_OUT_ARG(tcg_out_arg_reg32, TCGReg, tcg_out_mov_reg, )
static TCGReg tcg_out_arg_reg64(TCGContext *s, TCGReg argreg,
......@@ -1195,10 +1197,10 @@ static inline void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, int opc)
# if CPU_TLB_BITS > 8
# error
# endif
tcg_out_dat_reg(s, COND_AL, ARITH_MOV, TCG_REG_R8,
tcg_out_dat_reg(s, COND_AL, ARITH_MOV, TCG_REG_TMP,
0, addr_reg, SHIFT_IMM_LSR(TARGET_PAGE_BITS));
tcg_out_dat_imm(s, COND_AL, ARITH_AND,
TCG_REG_R0, TCG_REG_R8, CPU_TLB_SIZE - 1);
TCG_REG_R0, TCG_REG_TMP, CPU_TLB_SIZE - 1);
tcg_out_dat_reg(s, COND_AL, ARITH_ADD, TCG_REG_R0, TCG_AREG0,
TCG_REG_R0, SHIFT_IMM_LSL(CPU_TLB_ENTRY_BITS));
/* We assume that the offset is contained within 20 bits. */
......@@ -1211,7 +1213,7 @@ static inline void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, int opc)
}
tcg_out_ld32_12wb(s, COND_AL, TCG_REG_R1, TCG_REG_R0, tlb_offset);
tcg_out_dat_reg(s, COND_AL, ARITH_CMP, 0, TCG_REG_R1,
TCG_REG_R8, SHIFT_IMM_LSL(TARGET_PAGE_BITS));
TCG_REG_TMP, SHIFT_IMM_LSL(TARGET_PAGE_BITS));
/* Check alignment. */
if (s_bits)
tcg_out_dat_imm(s, COND_EQ, ARITH_TST,
......@@ -1315,9 +1317,9 @@ static inline void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, int opc)
i = ctz32(offset) & ~1;
rot = ((32 - i) << 7) & 0xf00;
tcg_out_dat_imm(s, COND_AL, ARITH_ADD, TCG_REG_R8, addr_reg,
tcg_out_dat_imm(s, COND_AL, ARITH_ADD, TCG_REG_TMP, addr_reg,
((offset >> i) & 0xff) | rot);
addr_reg = TCG_REG_R8;
addr_reg = TCG_REG_TMP;
offset &= ~(0xff << i);
}
}
......@@ -1404,9 +1406,9 @@ static inline void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, int opc)
* add r0, env, r0 lsl #CPU_TLB_ENTRY_BITS
*/
tcg_out_dat_reg(s, COND_AL, ARITH_MOV,
TCG_REG_R8, 0, addr_reg, SHIFT_IMM_LSR(TARGET_PAGE_BITS));
TCG_REG_TMP, 0, addr_reg, SHIFT_IMM_LSR(TARGET_PAGE_BITS));
tcg_out_dat_imm(s, COND_AL, ARITH_AND,
TCG_REG_R0, TCG_REG_R8, CPU_TLB_SIZE - 1);
TCG_REG_R0, TCG_REG_TMP, CPU_TLB_SIZE - 1);
tcg_out_dat_reg(s, COND_AL, ARITH_ADD, TCG_REG_R0,
TCG_AREG0, TCG_REG_R0, SHIFT_IMM_LSL(CPU_TLB_ENTRY_BITS));
/* We assume that the offset is contained within 20 bits. */
......@@ -1419,7 +1421,7 @@ static inline void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, int opc)
}
tcg_out_ld32_12wb(s, COND_AL, TCG_REG_R1, TCG_REG_R0, tlb_offset);
tcg_out_dat_reg(s, COND_AL, ARITH_CMP, 0, TCG_REG_R1,
TCG_REG_R8, SHIFT_IMM_LSL(TARGET_PAGE_BITS));
TCG_REG_TMP, SHIFT_IMM_LSL(TARGET_PAGE_BITS));
/* Check alignment. */
if (s_bits)
tcg_out_dat_imm(s, COND_EQ, ARITH_TST,
......@@ -1698,7 +1700,7 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc,
a0 = args[0], a1 = args[1], a2 = args[2];
a3 = args[3], a4 = args[4], a5 = args[5];
if (a0 == a3 || (a0 == a5 && !const_args[5])) {
a0 = TCG_REG_R8;
a0 = TCG_REG_TMP;
}
tcg_out_dat_rIN(s, COND_AL, ARITH_ADD | TO_CPSR, ARITH_SUB | TO_CPSR,
a0, a2, a4, const_args[4]);
......@@ -1710,7 +1712,7 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc,
a0 = args[0], a1 = args[1], a2 = args[2];
a3 = args[3], a4 = args[4], a5 = args[5];
if ((a0 == a3 && !const_args[3]) || (a0 == a5 && !const_args[5])) {
a0 = TCG_REG_R8;
a0 = TCG_REG_TMP;
}
if (const_args[2]) {
if (const_args[4]) {
......@@ -1778,9 +1780,9 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc,
SHIFT_IMM_ROR((0x20 - args[2]) & 0x1f) :
SHIFT_IMM_LSL(0));
} else {
tcg_out_dat_imm(s, COND_AL, ARITH_RSB, TCG_REG_R8, args[1], 0x20);
tcg_out_dat_imm(s, COND_AL, ARITH_RSB, TCG_REG_TMP, args[1], 0x20);
tcg_out_dat_reg(s, COND_AL, ARITH_MOV, args[0], 0, args[1],
SHIFT_REG_ROR(TCG_REG_R8));
SHIFT_REG_ROR(TCG_REG_TMP));
}
break;
......@@ -1885,15 +1887,15 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc,
tcg_out_udiv(s, COND_AL, args[0], args[1], args[2]);
break;
case INDEX_op_rem_i32:
tcg_out_sdiv(s, COND_AL, TCG_REG_R8, args[1], args[2]);
tcg_out_mul32(s, COND_AL, TCG_REG_R8, TCG_REG_R8, args[2]);
tcg_out_dat_reg(s, COND_AL, ARITH_SUB, args[0], args[1], TCG_REG_R8,
tcg_out_sdiv(s, COND_AL, TCG_REG_TMP, args[1], args[2]);
tcg_out_mul32(s, COND_AL, TCG_REG_TMP, TCG_REG_TMP, args[2]);
tcg_out_dat_reg(s, COND_AL, ARITH_SUB, args[0], args[1], TCG_REG_TMP,
SHIFT_IMM_LSL(0));
break;
case INDEX_op_remu_i32:
tcg_out_udiv(s, COND_AL, TCG_REG_R8, args[1], args[2]);
tcg_out_mul32(s, COND_AL, TCG_REG_R8, TCG_REG_R8, args[2]);
tcg_out_dat_reg(s, COND_AL, ARITH_SUB, args[0], args[1], TCG_REG_R8,
tcg_out_udiv(s, COND_AL, TCG_REG_TMP, args[1], args[2]);
tcg_out_mul32(s, COND_AL, TCG_REG_TMP, TCG_REG_TMP, args[2]);
tcg_out_dat_reg(s, COND_AL, ARITH_SUB, args[0], args[1], TCG_REG_TMP,
SHIFT_IMM_LSL(0));
break;
......@@ -2012,7 +2014,7 @@ static void tcg_target_init(TCGContext *s)
tcg_regset_clear(s->reserved_regs);
tcg_regset_set_reg(s->reserved_regs, TCG_REG_CALL_STACK);
tcg_regset_set_reg(s->reserved_regs, TCG_REG_R8);
tcg_regset_set_reg(s->reserved_regs, TCG_REG_TMP);
tcg_regset_set_reg(s->reserved_regs, TCG_REG_PC);
tcg_add_target_add_op_defs(arm_op_defs);
......
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