Chris Lattner c87c50a39c Enhance SRoA to promote allocas that are used by selects in some ... common cases. This triggers a surprising number of times in SPEC2K6 because min/max idioms end up doing this. For example, code from the STL ends up looking like this to SRoA: %202 = load i64* %__old_size, align 8, !tbaa !3 %203 = load i64* %__old_size, align 8, !tbaa !3 %204 = load i64* %__n, align 8, !tbaa !3 %205 = icmp ult i64 %203, %204 %storemerge.i = select i1 %205, i64* %__n, i64* %__old_size %206 = load i64* %storemerge.i, align 8, !tbaa !3 We can now promote both the __n and the __old_size allocas. This addresses another chunk of rdar://7339113, poor codegen on stringswitch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124088 91177308-0d34-0410-b5e6-96231b3b80d8		2011-01-23 22:04:55 +00:00
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Analysis	Simplify some code with no functionality change. Make the test a lot more	2011-01-23 20:06:05 +00:00
Archive	Archive: Fix temp path names.	2011-01-17 16:43:30 +00:00
AsmParser	Allow unnamed_addr on declarations.	2011-01-15 08:15:00 +00:00
Bitcode	FixedNumOperandTraits and VariadicOperandTraits assumed that, given a	2011-01-11 15:07:38 +00:00
CodeGen	Add support for the --noexecstack option.	2011-01-23 17:55:27 +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	Handles libffi on the CMake build.	2011-01-21 15:42:54 +00:00
Linker	Allow unnamed_addr on declarations.	2011-01-15 08:15:00 +00:00
MC	Add support for the --noexecstack option.	2011-01-23 17:55:27 +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	Null initialize a few variables flagged by	2011-01-23 17:05:06 +00:00
Target	Add a memset loop that LoopIdiomRecognize doesn't recognize.	2011-01-23 20:31:00 +00:00
Transforms	Enhance SRoA to promote allocas that are used by selects in some	2011-01-23 22:04:55 +00:00
VMCore	teach Value::isDereferenceablePointer that byval arguments are always	2011-01-23 21:15:29 +00:00
Makefile	Add LLVMObject Library.	2010-11-15 03:21:41 +00:00