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b875fd735d
Summary: This helps with more efficient use of memset for pattern initialization From @pcc prototype for -ftrivial-auto-var-init=pattern optimizations Binary size change on CTMark, (with -fuse-ld=lld -Wl,--icf=all, similar results with default linker options) ``` master patch diff Os 8.238864e+05 8.238864e+05 0.0 O3 1.054797e+06 1.054797e+06 0.0 Os zero 8.292384e+05 8.292384e+05 0.0 O3 zero 1.062626e+06 1.062626e+06 0.0 Os pattern 8.579712e+05 8.338048e+05 -0.030299 O3 pattern 1.090502e+06 1.067574e+06 -0.020481 ``` Zero vs Pattern on master ``` zero pattern diff Os 8.292384e+05 8.579712e+05 0.036578 O3 1.062626e+06 1.090502e+06 0.025124 ``` Zero vs Pattern with the patch ``` zero pattern diff Os 8.292384e+05 8.338048e+05 0.003333 O3 1.062626e+06 1.067574e+06 0.003193 ``` Reviewers: pcc, eugenis Subscribers: hiraditya, cfe-commits, llvm-commits Tags: #clang, #llvm Differential Revision: https://reviews.llvm.org/D63967 llvm-svn: 365858 |
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.. | ||
AliasAnalysisTest.cpp | ||
AliasSetTrackerTest.cpp | ||
BasicAliasAnalysisTest.cpp | ||
BlockFrequencyInfoTest.cpp | ||
BranchProbabilityInfoTest.cpp | ||
CallGraphTest.cpp | ||
CaptureTrackingTest.cpp | ||
CFGTest.cpp | ||
CGSCCPassManagerTest.cpp | ||
CMakeLists.txt | ||
DivergenceAnalysisTest.cpp | ||
DomTreeUpdaterTest.cpp | ||
GlobalsModRefTest.cpp | ||
IVDescriptorsTest.cpp | ||
LazyCallGraphTest.cpp | ||
LoopInfoTest.cpp | ||
MemoryBuiltinsTest.cpp | ||
MemorySSATest.cpp | ||
OrderedBasicBlockTest.cpp | ||
OrderedInstructionsTest.cpp | ||
PhiValuesTest.cpp | ||
ProfileSummaryInfoTest.cpp | ||
ScalarEvolutionTest.cpp | ||
SparsePropagation.cpp | ||
TargetLibraryInfoTest.cpp | ||
TBAATest.cpp | ||
UnrollAnalyzerTest.cpp | ||
ValueLatticeTest.cpp | ||
ValueTrackingTest.cpp | ||
VectorUtilsTest.cpp |