Nadav Rotem 4ac9081c71 This commit contains a few changes that had to go in together. ... 1. Simplify xor/and/or (bitcast(A), bitcast(B)) -> bitcast(op (A,B)) (and also scalar_to_vector). 2. Xor/and/or are indifferent to the swizzle operation (shuffle of one src). Simplify xor/and/or (shuff(A), shuff(B)) -> shuff(op (A, B)) 3. Optimize swizzles of shuffles: shuff(shuff(x, y), undef) -> shuff(x, y). 4. Fix an X86ISelLowering optimization which was very bitcast-sensitive. Code which was previously compiled to this: movd (%rsi), %xmm0 movdqa .LCPI0_0(%rip), %xmm2 pshufb %xmm2, %xmm0 movd (%rdi), %xmm1 pshufb %xmm2, %xmm1 pxor %xmm0, %xmm1 pshufb .LCPI0_1(%rip), %xmm1 movd %xmm1, (%rdi) ret Now compiles to this: movl (%rsi), %eax xorl %eax, (%rdi) ret git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153848 91177308-0d34-0410-b5e6-96231b3b80d8		2012-04-01 19:31:22 +00:00
..
Analysis	Teach CodeGen's version of computeMaskedBits to understand the range metadata.	2012-03-31 18:14:00 +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	This commit contains a few changes that had to go in together.	2012-04-01 19:31:22 +00:00
DebugInfo	More dead code removal (using -Wunreachable-code)	2012-01-20 21:51:11 +00:00
ExecutionEngine	Removing a file that's no longer being used after the recent refactorings	2012-04-01 06:50:01 +00:00
Linker	It's possible for two types, which are isomorphic, to be added to the	2012-03-23 23:17:38 +00:00
MC	Prune some includes	2012-03-27 07:54:11 +00:00
Object	[Object/COFF]: Expose getSectionContents.	2012-03-19 20:27:37 +00:00
Support	Lowercase the tag name to match the rest of dwarf.	2012-03-29 21:35:05 +00:00
TableGen	Fix infinite loop in nested multiclasses.	2012-03-07 16:39:35 +00:00
Target	This commit contains a few changes that had to go in together.	2012-04-01 19:31:22 +00:00
Transforms	Belatedly address some code review from Chris.	2012-04-01 10:41:24 +00:00
VMCore	I noticed in passing that the Metadata getIfExists method was creating a new	2012-03-31 08:20:11 +00:00
CMakeLists.txt
LLVMBuild.txt	LLVMBuild: Introduce a common section which currently has a list of the	2011-12-12 22:45:54 +00:00
Makefile