Evan Cheng d99d68bcee Fix two-address pass's aggressive instruction commuting heuristics. It's meant ... to catch cases like: %reg1024<def> = MOV r1 %reg1025<def> = MOV r0 %reg1026<def> = ADD %reg1024, %reg1025 r0 = MOV %reg1026 By commuting ADD, it let coalescer eliminate all of the copies. However, there was a bug in the heuristics where it ended up commuting the ADD in: %reg1024<def> = MOV r0 %reg1025<def> = MOV 0 %reg1026<def> = ADD %reg1024, %reg1025 r0 = MOV %reg1026 That did no benefit but rather ensure the last MOV would not be coalesced. rdar://11355268 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156048 91177308-0d34-0410-b5e6-96231b3b80d8		2012-05-03 01:45:13 +00:00
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Analysis	Just mark the sign bit as known zero, rather than any other irrelevant bits	2012-04-30 11:56:58 +00:00
Archive	Include cstdio in a few place that depended on getting it transitively through StringExtras.h	2012-03-23 11:35:30 +00:00
AsmParser	Convert assert(0) to llvm_unreachable	2012-02-07 05:05:23 +00:00
Bitcode	llvm::SwitchInst	2012-03-11 06:09:17 +00:00
CodeGen	Fix two-address pass's aggressive instruction commuting heuristics. It's meant	2012-05-03 01:45:13 +00:00
DebugInfo	Fix a C++11 UDL conflict.	2012-04-04 20:33:56 +00:00
ExecutionEngine	RuntimeDyld cleanup:	2012-05-01 10:41:12 +00:00
Linker	Add a flag to the struct type finder to collect only those types which have	2012-04-21 23:59:16 +00:00
MC	MC: Unknown assembler directives are now hard errors.	2012-05-01 18:38:27 +00:00
Object	Fix the implementation of MachOObjectFile::isSectionZeroInit so it follows the MachO spec.	2012-05-02 02:31:28 +00:00
Support	Change the Intel Atom detection code to recognize	2012-05-02 21:38:46 +00:00
TableGen	Move llvm-tblgen's StringMatcher into the TableGen library so it can	2012-05-02 17:32:48 +00:00
Target	Added TargetRegisterInfo::getAllocatableClass.	2012-05-03 01:14:37 +00:00
Transforms	Whitespace cleanup.	2012-05-02 23:43:23 +00:00
VMCore	Reapply r155682, making constant folding more consistent, with a fix to work	2012-04-27 17:50:22 +00:00
CMakeLists.txt	Move TableGen's parser and entry point into a library	2011-10-01 16:41:13 +00:00
LLVMBuild.txt	LLVMBuild: Introduce a common section which currently has a list of the	2011-12-12 22:45:54 +00:00
Makefile	Remove more of llvmc and dependencies.	2011-09-20 00:34:27 +00:00