Duncan Sands 44c273d907 Move some shift transforms out of instcombine and into InstructionSimplify. ... While there, I noticed that the transform "undef >>a X -> undef" was wrong. For example if X is 2 then the top two bits must be equal, so the result can not be anything. I fixed this in the constant folder as well. Also, I made the transform for "X << undef" stronger: it now folds to undef always, even though X might be zero. This is in accordance with the LangRef, but I must admit that it is fairly aggressive. Also, I added "i32 X << 32 -> undef" following the LangRef and the constant folder, likewise fairly aggressive. llvm-svn: 123417		2011-01-14 00:37:45 +00:00
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Analysis	Move some shift transforms out of instcombine and into InstructionSimplify.	2011-01-14 00:37:45 +00:00
Archive	Fix Whitespace.	2011-01-10 02:34:40 +00:00
AsmParser	Reject uses of unnamed_addr in declarations.	2011-01-13 01:30:30 +00:00
Bitcode	FixedNumOperandTraits and VariadicOperandTraits assumed that, given a	2011-01-11 15:07:38 +00:00
CodeGen	Better terminator avoidance.	2011-01-13 23:35:53 +00:00
CompilerDriver	Support/Path: Deprecate PathV1::exists and replace all uses with PathV2::fs::exists.	2011-01-10 02:34:23 +00:00
ExecutionEngine	Rename TargetFrameInfo into TargetFrameLowering. Also, put couple of FIXMEs and fixes here and there.	2011-01-10 12:39:04 +00:00
Linker	Keep unnamed_addr when linking.	2011-01-13 05:12:34 +00:00
MC	Add comment about Thumb2 fixup comments being completely bogus.	2011-01-13 23:27:39 +00:00
Object	Fix mismatched new[]/delete.	2010-12-17 09:56:50 +00:00
Support	Support/Path: Deprecate PathV1::IsSymlink and replace all uses with PathV2::is_symlink.	2011-01-12 23:55:06 +00:00
Target	fix PR8961 - a fast isel miscompilation where we'd insert a new instruction	2011-01-14 00:01:01 +00:00
Transforms	Move some shift transforms out of instcombine and into InstructionSimplify.	2011-01-14 00:37:45 +00:00
VMCore	Move some shift transforms out of instcombine and into InstructionSimplify.	2011-01-14 00:37:45 +00:00
Makefile