Hal Finkel e14fb07357 Consider (x == -1) unlikely in BranchProbabilityInfo ... This adds another heuristic to BPI, similar to the existing heuristic that considers (x == 0) unlikely to be true. As suggested in the PACT'98 paper by Deitrich, Cheng, and Hwu, -1 is often used to indicate an invalid index, and equality comparisons with -1 are also unlikely to succeed. Local experimentation supports this hypothesis: This yields a 1-2% speedup in the test-suite sqlite benchmark on the PPC A2 core, with no significant regressions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193855 91177308-0d34-0410-b5e6-96231b3b80d8		2013-11-01 10:58:22 +00:00
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BasicAA	Revert r193251 : Use address-taken to disambiguate global variable and indirect memops.	2013-10-27 03:08:44 +00:00
BlockFrequencyInfo
BranchProbabilityInfo	Consider (x == -1) unlikely in BranchProbabilityInfo	2013-11-01 10:58:22 +00:00
CallGraph
CostModel	X86: Custom lower sext v16i8 to v16i16, and the corresponding truncate.	2013-10-23 21:06:07 +00:00
DependenceAnalysis
Dominators
GlobalsModRef
Lint	Fix lint assert on integer vector division	2013-08-26 23:29:33 +00:00
LoopInfo
MemoryDependenceAnalysis
PostDominators
RegionInfo
ScalarEvolution	SCEV: Make the final add of an inbounds GEP nuw if we know that the index is positive.	2013-10-28 07:30:06 +00:00
TypeBasedAliasAnalysis	Simplify testing case (Thanks Rafael for the testing case).	2013-10-22 18:15:50 +00:00