Summary: Restore original null checks.
Reviewed-by: never, cfang

Summary: Update copyright for files that have been modified in 2009 through Septermber
Reviewed-by: tbell, ohair

Summary: Make a special root-list for those few nmethods which might contain non-perm oops.
Reviewed-by: twisti, kvn, never, jmasa, ysr

6875866: Intrinsic for String.indexOf() is broken on x86 with SSE4.2
Summary: Modify String intrinsic methods to pass char[] pointers instead of string oops.
Reviewed-by: never

Summary: Add an explicit check for TypeProfileWidth == 0 in record_klass_in_profile_helper() functions.
Reviewed-by: never, coleenp

Reviewed-by: kvn

Reviewed-by: kvn

Summary: Make sure the control word is correct in deopt_blob after restore_result_registers
Reviewed-by: kvn, never

Summary: Always use "lea" instruction for narrow oop decoding instead of "shift".
Reviewed-by: never

Summary: Update copyright for files that have been modified in 2009, up to 07/09
Reviewed-by: tbell, ohair

Summary: Modifications to G1 so as to allow the use of compressed oops.
Reviewed-by: apetrusenko, coleenp, jmasa, kvn, never, phh, tonyp

Reviewed-by: kvn, twisti

Reviewed-by: kvn

Summary: The optimizer should be told to normalize (AndL (ConvI2L x) 0xFF) to (ConvI2L (AndI x 0xFF)), and then the existing matcher rule will work for free.
Reviewed-by: kvn

Summary: add a RegisterMap* argument to frame::frame_size() to correctly compute the sender frame
Reviewed-by: never

Summary: 6797305 handles load widening but no shortening which should be covered here.
Reviewed-by: never, kvn

6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
Summary: Cache Jvmti and DTrace flags used by Compiler.
Reviewed-by: never

Summary: These methods can be instrinsified by using bit scan, bit test, and population count instructions.
Reviewed-by: kvn, never

Summary: invokedynamic instruction (JSR 292 RI)
Reviewed-by: twisti, never

Summary: initial implementation, with known omissions (x86/64, sparc, compiler optim., c-oops, C++ interp.)
Reviewed-by: kvn, twisti, never

Summary: Asserts and comments to help maintain the correct sizing of certain stubs
Reviewed-by: kvn

Reviewed-by: kvn

Reviewed-by: jrose, phh, kvn

Summary: Use SSE 4.2 in intrinsics for String.{compareTo/equals/indexOf} and Arrays.equals.
Reviewed-by: kvn, never, jrose

Summary: Tune C2 flags default values for performance.
Reviewed-by: never, phh, iveresov, jmasa, ysr

Reviewed-by: kvn, phh

Summary: preparatory but separable changes for method handles
Reviewed-by: kvn, never

Summary: Allow Hotspot builds with latest Windows SDK 6.1 on 64bit Windows 2003
Reviewed-by: ohair, tbell, jcoomes

Summary: Code in interp_masm, stubGenerator, c1_LIRAssembler, and AD files moved into MacroAssembler.
Reviewed-by: kvn

Summary: bitCount() should use POPC on SPARC processors where POPC is implemented directly in hardware.
Reviewed-by: kvn, never

Summary: Use zero based compressed oops if java heap is below 32gb and unscaled compressed oops if java heap is below 4gb.
Reviewed-by: never, twisti, jcoomes, coleenp

Summary: Update copyright for files that have been modified in 2009, up to 03/09
Reviewed-by: katleman, tbell, ohair

Summary: Add a LoadUB (unsigned byte) and LoadUI (unsigned int) opcode class so we have these load optimizations in the first place and do not need to handle them in the matcher.
Reviewed-by: never, kvn

Summary: Code in vtableStubs and templateTable moved into MacroAssembler.
Reviewed-by: kvn

Summary: minor assembler enhancements preparing for method handles
Reviewed-by: kvn

Summary: Remove incorrect optimization in klassItable::adjust_method_entries(). Add RedefineClasses() tracing support for obsolete method entry.
Reviewed-by: acorn, swamyv

Reviewed-by: kvn, phh, twisti

Summary: I have collected some typos I have found while looking at the code.
Reviewed-by: kvn, never

Summary: There is very much duplicated code in vm_version_x86_{32,64}.{cpp,hpp}.  Refactoring these would help maintainability.
Reviewed-by: kvn, never

Summary: There are two typos in andL_rReg_imm instructions in x86_64.ad.
Reviewed-by: kvn