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Differential D7499 Diff 21271 lib/Transforms/IPO/PassManagerBuilder.cpp

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lib/Transforms/IPO/PassManagerBuilder.cpp

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static cl::opt<bool> UseCFLAA("use-cfl-aa", static cl::opt<bool> UseCFLAA("use-cfl-aa",
cl::init(false), cl::Hidden, cl::init(false), cl::Hidden,
cl::desc("Enable the new, experimental CFL alias analysis")); cl::desc("Enable the new, experimental CFL alias analysis"));
static cl::opt<bool> static cl::opt<bool>
EnableMLSM("mlsm", cl::init(true), cl::Hidden, EnableMLSM("mlsm", cl::init(true), cl::Hidden,
cl::desc("Enable motion of merged load and store")); cl::desc("Enable motion of merged load and store"));
static cl::opt<bool> EnableLoopInterchange(
"enable-loopinterchange", cl::init(false), cl::Hidden,
cl::desc("Enable the new, experimental LoopInterchange Pass"));
PassManagerBuilder::PassManagerBuilder() { PassManagerBuilder::PassManagerBuilder() {
OptLevel = 2; OptLevel = 2;
SizeLevel = 0; SizeLevel = 0;
LibraryInfo = nullptr; LibraryInfo = nullptr;
Inliner = nullptr; Inliner = nullptr;
DisableTailCalls = false; DisableTailCalls = false;
DisableUnitAtATime = false; DisableUnitAtATime = false;
DisableUnrollLoops = false; DisableUnrollLoops = false;
▲ Show 20 Lines • Show All 146 Lines • ▼ Show 20 Linesvoid PassManagerBuilder::populateModulePassManager(
// Rotate Loop - disable header duplication at -Oz // Rotate Loop - disable header duplication at -Oz
MPM.add(createLoopRotatePass(SizeLevel == 2 ? 0 : -1)); MPM.add(createLoopRotatePass(SizeLevel == 2 ? 0 : -1));
MPM.add(createLICMPass()); // Hoist loop invariants MPM.add(createLICMPass()); // Hoist loop invariants
MPM.add(createLoopUnswitchPass(SizeLevel || OptLevel < 3)); MPM.add(createLoopUnswitchPass(SizeLevel || OptLevel < 3));
MPM.add(createInstructionCombiningPass()); MPM.add(createInstructionCombiningPass());
MPM.add(createIndVarSimplifyPass()); // Canonicalize indvars MPM.add(createIndVarSimplifyPass()); // Canonicalize indvars
MPM.add(createLoopIdiomPass()); // Recognize idioms like memset. MPM.add(createLoopIdiomPass()); // Recognize idioms like memset.
MPM.add(createLoopDeletionPass()); // Delete dead loops MPM.add(createLoopDeletionPass()); // Delete dead loops
if (EnableLoopInterchange)
MPM.add(createLoopInterchangePass()); // Interchange loops
if (!DisableUnrollLoops) if (!DisableUnrollLoops)
MPM.add(createSimpleLoopUnrollPass()); // Unroll small loops MPM.add(createSimpleLoopUnrollPass()); // Unroll small loops
addExtensionsToPM(EP_LoopOptimizerEnd, MPM); addExtensionsToPM(EP_LoopOptimizerEnd, MPM);
if (OptLevel > 1) { if (OptLevel > 1) {
if (EnableMLSM) if (EnableMLSM)
MPM.add(createMergedLoadStoreMotionPass()); // Merge ld/st in diamonds MPM.add(createMergedLoadStoreMotionPass()); // Merge ld/st in diamonds
Show All 12 Linesvoid PassManagerBuilder::populateModulePassManager(
MPM.add(createInstructionCombiningPass()); MPM.add(createInstructionCombiningPass());
addExtensionsToPM(EP_Peephole, MPM); addExtensionsToPM(EP_Peephole, MPM);
MPM.add(createJumpThreadingPass()); // Thread jumps MPM.add(createJumpThreadingPass()); // Thread jumps
MPM.add(createCorrelatedValuePropagationPass()); MPM.add(createCorrelatedValuePropagationPass());
MPM.add(createDeadStoreEliminationPass()); // Delete dead stores MPM.add(createDeadStoreEliminationPass()); // Delete dead stores
MPM.add(createLICMPass()); MPM.add(createLICMPass());
addExtensionsToPM(EP_ScalarOptimizerLate, MPM); addExtensionsToPM(EP_ScalarOptimizerLate, MPM);
hfinkelUnsubmitted
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I'd certainly like to have this on by default eventually, but we should be more conservative at first. Please add a command-line flag to enable this (there are several in this file already), so we can do further testing.

hfinkel: I'd certainly like to have this on by default eventually, but we should be more conservative at…
karthikthecoolAuthorUnsubmitted
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Sure. I had added it for testing performance forgot to revert before checkin. Will add a command line flag and disable it by default.

karthikthecool: Sure. I had added it for testing performance forgot to revert before checkin. Will add a…
if (RerollLoops) if (RerollLoops)
MPM.add(createLoopRerollPass()); MPM.add(createLoopRerollPass());
if (!RunSLPAfterLoopVectorization) { if (!RunSLPAfterLoopVectorization) {
if (SLPVectorize) if (SLPVectorize)
MPM.add(createSLPVectorizerPass()); // Vectorize parallel scalar chains. MPM.add(createSLPVectorizerPass()); // Vectorize parallel scalar chains.
if (BBVectorize) { if (BBVectorize) {
MPM.add(createBBVectorizePass()); MPM.add(createBBVectorizePass());
▲ Show 20 Lines • Show All 170 Lines • ▼ Show 20 Linesvoid PassManagerBuilder::addLTOOptimizationPasses(legacy::PassManagerBase &PM) {
PM.add(createMemCpyOptPass()); // Remove dead memcpys. PM.add(createMemCpyOptPass()); // Remove dead memcpys.
// Nuke dead stores. // Nuke dead stores.
PM.add(createDeadStoreEliminationPass()); PM.add(createDeadStoreEliminationPass());
// More loops are countable; try to optimize them. // More loops are countable; try to optimize them.
PM.add(createIndVarSimplifyPass()); PM.add(createIndVarSimplifyPass());
PM.add(createLoopDeletionPass()); PM.add(createLoopDeletionPass());
if (EnableLoopInterchange)
PM.add(createLoopInterchangePass());
PM.add(createLoopVectorizePass(true, LoopVectorize)); PM.add(createLoopVectorizePass(true, LoopVectorize));
// More scalar chains could be vectorized due to more alias information // More scalar chains could be vectorized due to more alias information
if (RunSLPAfterLoopVectorization) if (RunSLPAfterLoopVectorization)
if (SLPVectorize) if (SLPVectorize)
PM.add(createSLPVectorizerPass()); // Vectorize parallel scalar chains. PM.add(createSLPVectorizerPass()); // Vectorize parallel scalar chains.
// After vectorization, assume intrinsics may tell us more about pointer // After vectorization, assume intrinsics may tell us more about pointer
▲ Show 20 Lines • Show All 138 Lines • Show Last 20 Lines