Chandler Carruth b778cbc0c8 [canonicalize] Teach InstCombine to canonicalize loads which are only ... ever stored to always use a legal integer type if one is available. Regardless of whether this particular type is good or bad, it ensures we don't get weird differences in generated code (and resulting performance) from "equivalent" patterns that happen to end up using a slightly different type. After some discussion on llvmdev it seems everyone generally likes this canonicalization. However, there may be some parts of LLVM that handle it poorly and need to be fixed. I have at least verified that this doesn't impede GVN and instcombine's store-to-load forwarding powers in any obvious cases. Subtle cases are exactly what we need te flush out if they remain. Also note that this IR pattern should already be hitting LLVM from Clang at least because it is exactly the IR which would be produced if you used memcpy to copy a pointer or floating point between memory instead of a variable. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@226781 91177308-0d34-0410-b5e6-96231b3b80d8		2015-01-22 05:08:12 +00:00
..
Analysis	Make ScalarEvolution less aggressive with respect to no-wrap flags.	2015-01-22 00:48:47 +00:00
AsmParser	AsmParser: PARSE_MD_FIELD() => ParseMDField(), NFC	2015-01-20 02:42:29 +00:00
Bitcode	Bitcode: Don't create comdats when autoupgrading macho bitcode	2015-01-20 05:58:07 +00:00
CodeGen	Win64 SEH: Emit the constant 1 for catch-all into xdata	2015-01-22 02:27:44 +00:00
DebugInfo	[cleanup] Re-sort all the #include lines in LLVM using	2015-01-14 11:23:27 +00:00
ExecutionEngine	[RuntimeDyld] Tidy up emitCommonSymbols a little. NFC.	2015-01-17 00:55:05 +00:00
IR	Rewrite DIExpression::Verify() using an iterator. NFC.	2015-01-22 00:00:52 +00:00
IRReader	Remove unused variable. NFC.	2014-11-06 23:16:57 +00:00
LineEditor
Linker	[llvm link] Destroy ConstantArrays in LLVMContext if they are not used.	2015-01-20 19:24:59 +00:00
LTO	[PM] Separate the InstCombiner from its pass.	2015-01-20 22:44:35 +00:00
MC	ARM: fail less catastrophically on invalid Windows input	2015-01-22 04:03:32 +00:00
Object	Fix the Archive::Child::getRawSize() method used by llvm-objdump’s -archive-headers option	2015-01-16 22:10:36 +00:00
Option	[cleanup] Re-sort all the #include lines in LLVM using	2015-01-14 11:23:27 +00:00
ProfileData	Replace size method call of containers to empty method where appropriate	2015-01-15 11:41:30 +00:00
Support	Adding a new cl::HideUnrelatedOptions API to allow clang to migrate off cl::getRegisteredOptions.	2015-01-21 22:45:52 +00:00
TableGen	Replace size method call of containers to empty method where appropriate	2015-01-15 11:41:30 +00:00
Target	ARM: fail less catastrophically on invalid Windows input	2015-01-22 04:03:32 +00:00
Transforms	[canonicalize] Teach InstCombine to canonicalize loads which are only	2015-01-22 05:08:12 +00:00
CMakeLists.txt
LLVMBuild.txt
Makefile