Evan Cheng 2c33915628 Cmp peephole optimization isn't always safe for signed arithmetics. ... int tries = INT_MAX; while (tries > 0) { tries--; } The check should be: subs r4, #1 cmp r4, #0 bgt LBB0_1 The subs can set the overflow V bit when r4 is INT_MAX+1 (which loop canonicalization apparently does in this case). cmp #0 would have cleared it while not changing the N and Z bits. Since BGT is dependent on the V bit, i.e. (N == V) && !Z, it is not safe to eliminate the cmp #0. rdar://9172742 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128179 91177308-0d34-0410-b5e6-96231b3b80d8		2011-03-23 22:52:04 +00:00
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Analysis	Revert r128140 for now.	2011-03-23 15:51:12 +00:00
Archive	Revert PathV2 changes, as sys::fs::unique_file is not finished yet.	2011-03-01 19:50:55 +00:00
AsmParser	Use X86_thiscall calling convention for Win64 as well.	2011-03-03 07:49:07 +00:00
Bitcode	Move library stuff out of the toplevel CMakeLists.txt file.	2011-02-18 22:06:14 +00:00
CodeGen	PR9535: add support for splitting and scalarizing vector ISD::FP_ROUND.	2011-03-23 22:18:48 +00:00
CompilerDriver	Build CompilerDriver library.	2011-03-12 22:01:42 +00:00
ExecutionEngine	Split out relocation resolution into target-specific bits.	2011-03-23 22:06:06 +00:00
Linker	Correctly merge available_externally and regular definitions when they have	2011-02-01 05:33:52 +00:00
MC	Fix a bug introduced by my patch yesterday: BL is a 4-byte instructions like BLX, rather than a 2-byte instruction like B.	2011-03-23 21:19:56 +00:00
Object	Object: Fix type punned pointer issues by making DataRefImpl a union and using intptr_t.	2011-01-21 02:27:02 +00:00
Support	We don't need a null terminator for the output file.	2011-03-22 19:20:47 +00:00
Target	Cmp peephole optimization isn't always safe for signed arithmetics.	2011-03-23 22:52:04 +00:00
Transforms	Fix PR9464 by correcting some math that just happened to be right in most cases	2011-03-23 05:25:55 +00:00
VMCore	Do not accidently initialize NumDbgValueLost and NumDbgLineLost counts.	2011-03-16 00:27:57 +00:00
CMakeLists.txt	Build CompilerDriver library.	2011-03-12 22:01:42 +00:00
Makefile	Add LLVMObject Library.	2010-11-15 03:21:41 +00:00