Benjamin Kramer d5a80c7358 Reapply chandlerc's r173342 now that the miscompile it was triggering is fixed. ... Original commit message: Plug TTI into the speculation logic, giving it a real cost interface that can be specialized by targets. The goal here is not to be more aggressive, but to just be more accurate with very obvious cases. There are instructions which are known to be truly free and which were not being modeled as such in this code -- see the regression test which is distilled from an inner loop of zlib. Everywhere the TTI cost model is insufficiently conservative I've added explicit checks with FIXME comments to go add proper modelling of these cost factors. If this causes regressions, the likely solution is to make TTI even more conservative in its cost estimates, but test cases will help here. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173357 91177308-0d34-0410-b5e6-96231b3b80d8		2013-01-24 16:44:25 +00:00
..
BasicBlockUtils.cpp	Remove trailing spaces.	2013-01-14 23:16:36 +00:00
BreakCriticalEdges.cpp	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
BuildLibCalls.cpp	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
BypassSlowDivision.cpp	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
CloneFunction.cpp	Remove the last of uses that use the Attribute object as a collection of attributes.	2013-01-23 06:14:59 +00:00
CloneModule.cpp	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
CMakeLists.txt	Sink the AddressingModeMatcher helper class into an anonymous namespace	2013-01-05 02:09:22 +00:00
CmpInstAnalysis.cpp	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
CodeExtractor.cpp	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
DemoteRegToStack.cpp	Make sure we don't emit instructions before a landingpad instruction.	2013-01-08 10:51:32 +00:00
InlineFunction.cpp	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
InstructionNamer.cpp	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
IntegerDivision.cpp	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
LCSSA.cpp	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
LLVMBuild.txt	LLVMBuild: Remove trailing newline, which irked me.	2011-12-12 19:48:00 +00:00
Local.cpp	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
LoopSimplify.cpp	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
LoopUnroll.cpp	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
LoopUnrollRuntime.cpp	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
LowerExpectIntrinsic.cpp	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
LowerInvoke.cpp	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
LowerSwitch.cpp	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
Makefile	make -fno-rtti the default unless a directory builds with REQUIRES_RTTI.	2010-01-24 20:43:08 +00:00
Mem2Reg.cpp	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
MetaRenamer.cpp	Make sure metarenamer won't rename special stuff (intrinsics and explicitly renamed stuff).	2013-01-23 15:03:08 +00:00
ModuleUtils.cpp	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
PromoteMemoryToRegister.cpp	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
SimplifyCFG.cpp	Reapply chandlerc's r173342 now that the miscompile it was triggering is fixed.	2013-01-24 16:44:25 +00:00
SimplifyIndVar.cpp	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
SimplifyInstructions.cpp	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
SimplifyLibCalls.cpp	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
SSAUpdater.cpp	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
UnifyFunctionExitNodes.cpp	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
Utils.cpp	Add a pass that renames everything with metasyntatic names. This works well after using bugpoint to reduce the confusion presented by the original names, which no longer mean what they used to.	2012-09-11 02:46:18 +00:00
ValueMapper.cpp	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00