"enable-ml-inliner", cl::init(InliningAdvisorMode::Default), cl::Hidden,
cl::desc("Enable ML policy for inliner. Currently trained for -Oz only"),
cl::values(clEnumValN(InliningAdvisorMode::Default, "default",
- "Heuristics-based inliner version."),
+ "Heuristics-based inliner version"),
clEnumValN(InliningAdvisorMode::Development, "development",
- "Use development mode (runtime-loadable model)."),
+ "Use development mode (runtime-loadable model)"),
clEnumValN(InliningAdvisorMode::Release, "release",
- "Use release mode (AOT-compiled model).")));
+ "Use release mode (AOT-compiled model)")));
static cl::opt<bool> EnableSyntheticCounts(
"enable-npm-synthetic-counts", cl::Hidden,
static cl::opt<bool> PerformMandatoryInliningsFirst(
"mandatory-inlining-first", cl::init(true), cl::Hidden,
cl::desc("Perform mandatory inlinings module-wide, before performing "
- "inlining."));
+ "inlining"));
static cl::opt<bool> EnableO3NonTrivialUnswitching(
"enable-npm-O3-nontrivial-unswitch", cl::init(true), cl::Hidden,
"enable-global-analyses", cl::init(true), cl::Hidden,
cl::desc("Enable inter-procedural analyses"));
+static cl::opt<bool>
+ RunPartialInlining("enable-partial-inlining", cl::init(false), cl::Hidden,
+ cl::desc("Run Partial inlinining pass"));
+
+static cl::opt<bool> ExtraVectorizerPasses(
+ "extra-vectorizer-passes", cl::init(false), cl::Hidden,
+ cl::desc("Run cleanup optimization passes after vectorization"));
+
+static cl::opt<bool> RunNewGVN("enable-newgvn", cl::init(false), cl::Hidden,
+ cl::desc("Run the NewGVN pass"));
+
+static cl::opt<bool> EnableLoopInterchange(
+ "enable-loopinterchange", cl::init(false), cl::Hidden,
+ cl::desc("Enable the experimental LoopInterchange Pass"));
+
+static cl::opt<bool> EnableUnrollAndJam("enable-unroll-and-jam",
+ cl::init(false), cl::Hidden,
+ cl::desc("Enable Unroll And Jam Pass"));
+
+static cl::opt<bool> EnableLoopFlatten("enable-loop-flatten", cl::init(false),
+ cl::Hidden,
+ cl::desc("Enable the LoopFlatten Pass"));
+
+static cl::opt<bool>
+ EnableDFAJumpThreading("enable-dfa-jump-thread",
+ cl::desc("Enable DFA jump threading"),
+ cl::init(false), cl::Hidden);
+
+static cl::opt<bool>
+ EnableHotColdSplit("hot-cold-split",
+ cl::desc("Enable hot-cold splitting pass"));
+
+static cl::opt<bool> EnableIROutliner("ir-outliner", cl::init(false),
+ cl::Hidden,
+ cl::desc("Enable ir outliner pass"));
+
+static cl::opt<bool>
+ DisablePreInliner("disable-preinline", cl::init(false), cl::Hidden,
+ cl::desc("Disable pre-instrumentation inliner"));
+
+static cl::opt<int> PreInlineThreshold(
+ "preinline-threshold", cl::Hidden, cl::init(75),
+ cl::desc("Control the amount of inlining in pre-instrumentation inliner "
+ "(default = 75)"));
+
+static cl::opt<bool>
+ EnableGVNHoist("enable-gvn-hoist",
+ cl::desc("Enable the GVN hoisting pass (default = off)"));
+
+static cl::opt<bool>
+ EnableGVNSink("enable-gvn-sink",
+ cl::desc("Enable the GVN sinking pass (default = off)"));
+
+// This option is used in simplifying testing SampleFDO optimizations for
+// profile loading.
+static cl::opt<bool>
+ EnableCHR("enable-chr", cl::init(true), cl::Hidden,
+ cl::desc("Enable control height reduction optimization (CHR)"));
+
+static cl::opt<bool> FlattenedProfileUsed(
+ "flattened-profile-used", cl::init(false), cl::Hidden,
+ cl::desc("Indicate the sample profile being used is flattened, i.e., "
+ "no inline hierachy exists in the profile"));
+
+static cl::opt<bool> EnableOrderFileInstrumentation(
+ "enable-order-file-instrumentation", cl::init(false), cl::Hidden,
+ cl::desc("Enable order file instrumentation (default = off)"));
+
+static cl::opt<bool>
+ EnableMatrix("enable-matrix", cl::init(false), cl::Hidden,
+ cl::desc("Enable lowering of the matrix intrinsics"));
+
+static cl::opt<bool> EnableConstraintElimination(
+ "enable-constraint-elimination", cl::init(false), cl::Hidden,
+ cl::desc(
+ "Enable pass to eliminate conditions based on linear constraints"));
+
+static cl::opt<bool> EnableFunctionSpecialization(
+ "enable-function-specialization", cl::init(false), cl::Hidden,
+ cl::desc("Enable Function Specialization pass"));
+
+static cl::opt<AttributorRunOption> AttributorRun(
+ "attributor-enable", cl::Hidden, cl::init(AttributorRunOption::NONE),
+ cl::desc("Enable the attributor inter-procedural deduction pass"),
+ cl::values(clEnumValN(AttributorRunOption::ALL, "all",
+ "enable all attributor runs"),
+ clEnumValN(AttributorRunOption::MODULE, "module",
+ "enable module-wide attributor runs"),
+ clEnumValN(AttributorRunOption::CGSCC, "cgscc",
+ "enable call graph SCC attributor runs"),
+ clEnumValN(AttributorRunOption::NONE, "none",
+ "disable attributor runs")));
+
PipelineTuningOptions::PipelineTuningOptions() {
LoopInterleaving = true;
LoopVectorization = true;
namespace llvm {
extern cl::opt<unsigned> MaxDevirtIterations;
-extern cl::opt<bool> EnableConstraintElimination;
-extern cl::opt<bool> EnableFunctionSpecialization;
-extern cl::opt<bool> EnableGVNHoist;
-extern cl::opt<bool> EnableGVNSink;
-extern cl::opt<bool> EnableHotColdSplit;
-extern cl::opt<bool> EnableIROutliner;
-extern cl::opt<bool> EnableOrderFileInstrumentation;
-extern cl::opt<bool> EnableCHR;
-extern cl::opt<bool> EnableLoopInterchange;
-extern cl::opt<bool> EnableUnrollAndJam;
-extern cl::opt<bool> EnableLoopFlatten;
-extern cl::opt<bool> EnableDFAJumpThreading;
-extern cl::opt<bool> RunNewGVN;
-extern cl::opt<bool> RunPartialInlining;
-extern cl::opt<bool> ExtraVectorizerPasses;
-extern cl::opt<bool> FlattenedProfileUsed;
-extern cl::opt<AttributorRunOption> AttributorRun;
extern cl::opt<bool> EnableKnowledgeRetention;
-extern cl::opt<bool> EnableMatrix;
-extern cl::opt<bool> DisablePreInliner;
-extern cl::opt<int> PreInlineThreshold;
} // namespace llvm
void PassBuilder::invokePeepholeEPCallbacks(FunctionPassManager &FPM,
using namespace llvm;
-namespace llvm {
-cl::opt<bool> RunPartialInlining("enable-partial-inlining", cl::Hidden,
- cl::desc("Run Partial inlinining pass"));
-
-static cl::opt<bool>
-UseGVNAfterVectorization("use-gvn-after-vectorization",
- cl::init(false), cl::Hidden,
- cl::desc("Run GVN instead of Early CSE after vectorization passes"));
-
-cl::opt<bool> ExtraVectorizerPasses(
- "extra-vectorizer-passes", cl::init(false), cl::Hidden,
- cl::desc("Run cleanup optimization passes after vectorization."));
-
-static cl::opt<bool>
-RunLoopRerolling("reroll-loops", cl::Hidden,
- cl::desc("Run the loop rerolling pass"));
-
-cl::opt<bool> RunNewGVN("enable-newgvn", cl::init(false), cl::Hidden,
- cl::desc("Run the NewGVN pass"));
-
-// Experimental option to use CFL-AA
-static cl::opt<::CFLAAType>
- UseCFLAA("use-cfl-aa", cl::init(::CFLAAType::None), cl::Hidden,
- cl::desc("Enable the new, experimental CFL alias analysis"),
- cl::values(clEnumValN(::CFLAAType::None, "none", "Disable CFL-AA"),
- clEnumValN(::CFLAAType::Steensgaard, "steens",
- "Enable unification-based CFL-AA"),
- clEnumValN(::CFLAAType::Andersen, "anders",
- "Enable inclusion-based CFL-AA"),
- clEnumValN(::CFLAAType::Both, "both",
- "Enable both variants of CFL-AA")));
-
-cl::opt<bool> EnableLoopInterchange(
- "enable-loopinterchange", cl::init(false), cl::Hidden,
- cl::desc("Enable the experimental LoopInterchange Pass"));
-
-cl::opt<bool> EnableUnrollAndJam("enable-unroll-and-jam", cl::init(false),
- cl::Hidden,
- cl::desc("Enable Unroll And Jam Pass"));
-
-cl::opt<bool> EnableLoopFlatten("enable-loop-flatten", cl::init(false),
- cl::Hidden,
- cl::desc("Enable the LoopFlatten Pass"));
-
-cl::opt<bool> EnableDFAJumpThreading("enable-dfa-jump-thread",
- cl::desc("Enable DFA jump threading."),
- cl::init(false), cl::Hidden);
-
-cl::opt<bool> EnableHotColdSplit("hot-cold-split",
- cl::desc("Enable hot-cold splitting pass"));
-
-cl::opt<bool> EnableIROutliner("ir-outliner", cl::init(false), cl::Hidden,
- cl::desc("Enable ir outliner pass"));
-
-static cl::opt<bool> UseLoopVersioningLICM(
- "enable-loop-versioning-licm", cl::init(false), cl::Hidden,
- cl::desc("Enable the experimental Loop Versioning LICM pass"));
-
-cl::opt<bool>
- DisablePreInliner("disable-preinline", cl::init(false), cl::Hidden,
- cl::desc("Disable pre-instrumentation inliner"));
-
-cl::opt<int> PreInlineThreshold(
- "preinline-threshold", cl::Hidden, cl::init(75),
- cl::desc("Control the amount of inlining in pre-instrumentation inliner "
- "(default = 75)"));
-
-cl::opt<bool>
- EnableGVNHoist("enable-gvn-hoist",
- cl::desc("Enable the GVN hoisting pass (default = off)"));
-
-static cl::opt<bool>
- DisableLibCallsShrinkWrap("disable-libcalls-shrinkwrap", cl::init(false),
- cl::Hidden,
- cl::desc("Disable shrink-wrap library calls"));
-
-cl::opt<bool>
- EnableGVNSink("enable-gvn-sink",
- cl::desc("Enable the GVN sinking pass (default = off)"));
-
-// This option is used in simplifying testing SampleFDO optimizations for
-// profile loading.
-cl::opt<bool>
- EnableCHR("enable-chr", cl::init(true), cl::Hidden,
- cl::desc("Enable control height reduction optimization (CHR)"));
-
-cl::opt<bool> FlattenedProfileUsed(
- "flattened-profile-used", cl::init(false), cl::Hidden,
- cl::desc("Indicate the sample profile being used is flattened, i.e., "
- "no inline hierachy exists in the profile. "));
-
-cl::opt<bool> EnableOrderFileInstrumentation(
- "enable-order-file-instrumentation", cl::init(false), cl::Hidden,
- cl::desc("Enable order file instrumentation (default = off)"));
-
-cl::opt<bool> EnableMatrix(
- "enable-matrix", cl::init(false), cl::Hidden,
- cl::desc("Enable lowering of the matrix intrinsics"));
-
-cl::opt<bool> EnableConstraintElimination(
- "enable-constraint-elimination", cl::init(false), cl::Hidden,
- cl::desc(
- "Enable pass to eliminate conditions based on linear constraints."));
-
-cl::opt<bool> EnableFunctionSpecialization(
- "enable-function-specialization", cl::init(false), cl::Hidden,
- cl::desc("Enable Function Specialization pass"));
-
-cl::opt<AttributorRunOption> AttributorRun(
- "attributor-enable", cl::Hidden, cl::init(AttributorRunOption::NONE),
- cl::desc("Enable the attributor inter-procedural deduction pass."),
- cl::values(clEnumValN(AttributorRunOption::ALL, "all",
- "enable all attributor runs"),
- clEnumValN(AttributorRunOption::MODULE, "module",
- "enable module-wide attributor runs"),
- clEnumValN(AttributorRunOption::CGSCC, "cgscc",
- "enable call graph SCC attributor runs"),
- clEnumValN(AttributorRunOption::NONE, "none",
- "disable attributor runs")));
-
-extern cl::opt<bool> EnableKnowledgeRetention;
-} // namespace llvm
-
PassManagerBuilder::PassManagerBuilder() {
OptLevel = 2;
SizeLevel = 0;
SLPVectorize = false;
LoopVectorize = true;
LoopsInterleaved = true;
- RerollLoops = RunLoopRerolling;
- NewGVN = RunNewGVN;
LicmMssaOptCap = SetLicmMssaOptCap;
LicmMssaNoAccForPromotionCap = SetLicmMssaNoAccForPromotionCap;
DisableGVNLoadPRE = false;
void PassManagerBuilder::addInitialAliasAnalysisPasses(
legacy::PassManagerBase &PM) const {
- switch (UseCFLAA) {
- case ::CFLAAType::Steensgaard:
- PM.add(createCFLSteensAAWrapperPass());
- break;
- case ::CFLAAType::Andersen:
- PM.add(createCFLAndersAAWrapperPass());
- break;
- case ::CFLAAType::Both:
- PM.add(createCFLSteensAAWrapperPass());
- PM.add(createCFLAndersAAWrapperPass());
- break;
- default:
- break;
- }
-
// Add TypeBasedAliasAnalysis before BasicAliasAnalysis so that
// BasicAliasAnalysis wins if they disagree. This is intended to help
// support "obvious" type-punning idioms.
if (LibraryInfo)
FPM.add(new TargetLibraryInfoWrapperPass(*LibraryInfo));
- // The backends do not handle matrix intrinsics currently.
- // Make sure they are also lowered in O0.
- // FIXME: A lightweight version of the pass should run in the backend
- // pipeline on demand.
- if (EnableMatrix && OptLevel == 0)
- FPM.add(createLowerMatrixIntrinsicsMinimalPass());
-
if (OptLevel == 0) return;
addInitialAliasAnalysisPasses(FPM);
assert(OptLevel >= 1 && "Calling function optimizer with no optimization level!");
MPM.add(createSROAPass());
MPM.add(createEarlyCSEPass(true /* Enable mem-ssa. */)); // Catch trivial redundancies
- if (EnableKnowledgeRetention)
- MPM.add(createAssumeSimplifyPass());
-
- if (OptLevel > 1) {
- if (EnableGVNHoist)
- MPM.add(createGVNHoistPass());
- if (EnableGVNSink) {
- MPM.add(createGVNSinkPass());
- MPM.add(createCFGSimplificationPass(
- SimplifyCFGOptions().convertSwitchRangeToICmp(true)));
- }
- }
-
- if (EnableConstraintElimination)
- MPM.add(createConstraintEliminationPass());
if (OptLevel > 1) {
// Speculative execution if the target has divergent branches; otherwise nop.
if (OptLevel > 2)
MPM.add(createAggressiveInstCombinerPass());
MPM.add(createInstructionCombiningPass());
- if (SizeLevel == 0 && !DisableLibCallsShrinkWrap)
+ if (SizeLevel == 0)
MPM.add(createLibCallsShrinkWrapPass());
addExtensionsToPM(EP_Peephole, MPM);
true))); // Merge & remove BBs
MPM.add(createReassociatePass()); // Reassociate expressions
- // The matrix extension can introduce large vector operations early, which can
- // benefit from running vector-combine early on.
- if (EnableMatrix)
- MPM.add(createVectorCombinePass());
-
// Begin the loop pass pipeline.
// The simple loop unswitch pass relies on separate cleanup passes. Schedule
SimplifyCFGOptions().convertSwitchRangeToICmp(true)));
MPM.add(createInstructionCombiningPass());
// We resume loop passes creating a second loop pipeline here.
- if (EnableLoopFlatten) {
- MPM.add(createLoopFlattenPass()); // Flatten loops
- MPM.add(createLoopSimplifyCFGPass());
- }
MPM.add(createLoopIdiomPass()); // Recognize idioms like memset.
MPM.add(createIndVarSimplifyPass()); // Canonicalize indvars
addExtensionsToPM(EP_LateLoopOptimizations, MPM);
MPM.add(createLoopDeletionPass()); // Delete dead loops
- if (EnableLoopInterchange)
- MPM.add(createLoopInterchangePass()); // Interchange loops
-
// Unroll small loops and perform peeling.
MPM.add(createSimpleLoopUnrollPass(OptLevel, DisableUnrollLoops,
ForgetAllSCEVInLoopUnroll));
}
MPM.add(createSCCPPass()); // Constant prop with SCCP
- if (EnableConstraintElimination)
- MPM.add(createConstraintEliminationPass());
-
// Delete dead bit computations (instcombine runs after to fold away the dead
// computations, and then ADCE will run later to exploit any new DCE
// opportunities that creates).
MPM.add(createInstructionCombiningPass());
addExtensionsToPM(EP_Peephole, MPM);
if (OptLevel > 1) {
- if (EnableDFAJumpThreading && SizeLevel == 0)
- MPM.add(createDFAJumpThreadingPass());
-
MPM.add(createJumpThreadingPass()); // Thread jumps
MPM.add(createCorrelatedValuePropagationPass());
}
addExtensionsToPM(EP_ScalarOptimizerLate, MPM);
- if (RerollLoops)
- MPM.add(createLoopRerollPass());
-
// Merge & remove BBs and sink & hoist common instructions.
MPM.add(createCFGSimplificationPass(
SimplifyCFGOptions().hoistCommonInsts(true).sinkCommonInsts(true)));
// FIXME: It would be really good to use a loop-integrated instruction
// combiner for cleanup here so that the unrolling and LICM can be pipelined
// across the loop nests.
- // We do UnrollAndJam in a separate LPM to ensure it happens before unroll
- if (EnableUnrollAndJam && !DisableUnrollLoops)
- PM.add(createLoopUnrollAndJamPass(OptLevel));
PM.add(createLoopUnrollPass(OptLevel, DisableUnrollLoops,
ForgetAllSCEVInLoopUnroll));
PM.add(createWarnMissedTransformationsPass());
// Cleanup after the loop optimization passes.
PM.add(createInstructionCombiningPass());
- if (OptLevel > 1 && ExtraVectorizerPasses) {
- // At higher optimization levels, try to clean up any runtime overlap and
- // alignment checks inserted by the vectorizer. We want to track correlated
- // runtime checks for two inner loops in the same outer loop, fold any
- // common computations, hoist loop-invariant aspects out of any outer loop,
- // and unswitch the runtime checks if possible. Once hoisted, we may have
- // dead (or speculatable) control flows or more combining opportunities.
- PM.add(createEarlyCSEPass());
- PM.add(createCorrelatedValuePropagationPass());
- PM.add(createInstructionCombiningPass());
- PM.add(createLICMPass(LicmMssaOptCap, LicmMssaNoAccForPromotionCap,
- /*AllowSpeculation=*/true));
- PM.add(createSimpleLoopUnswitchLegacyPass());
- PM.add(createCFGSimplificationPass(
- SimplifyCFGOptions().convertSwitchRangeToICmp(true)));
- PM.add(createInstructionCombiningPass());
- }
-
// Now that we've formed fast to execute loop structures, we do further
// optimizations. These are run afterward as they might block doing complex
// analyses and transforms such as what are needed for loop vectorization.
// Optimize parallel scalar instruction chains into SIMD instructions.
if (SLPVectorize) {
PM.add(createSLPVectorizerPass());
- if (OptLevel > 1 && ExtraVectorizerPasses)
- PM.add(createEarlyCSEPass());
}
// Enhance/cleanup vector code.
addExtensionsToPM(EP_Peephole, PM);
PM.add(createInstructionCombiningPass());
- if (EnableUnrollAndJam && !DisableUnrollLoops) {
- // Unroll and Jam. We do this before unroll but need to be in a separate
- // loop pass manager in order for the outer loop to be processed by
- // unroll and jam before the inner loop is unrolled.
- PM.add(createLoopUnrollAndJamPass(OptLevel));
- }
-
// Unroll small loops
PM.add(createLoopUnrollPass(OptLevel, DisableUnrollLoops,
ForgetAllSCEVInLoopUnroll));
// Infer attributes about declarations if possible.
MPM.add(createInferFunctionAttrsLegacyPass());
- // Infer attributes on declarations, call sites, arguments, etc.
- if (AttributorRun & AttributorRunOption::MODULE)
- MPM.add(createAttributorLegacyPass());
-
addExtensionsToPM(EP_ModuleOptimizerEarly, MPM);
if (OptLevel > 2)
MPM.add(createCallSiteSplittingPass());
- // Propage constant function arguments by specializing the functions.
- if (OptLevel > 2 && EnableFunctionSpecialization)
- MPM.add(createFunctionSpecializationPass());
-
MPM.add(createIPSCCPPass()); // IP SCCP
MPM.add(createCalledValuePropagationPass());
RunInliner = true;
}
- // Infer attributes on declarations, call sites, arguments, etc. for an SCC.
- if (AttributorRun & AttributorRunOption::CGSCC)
- MPM.add(createAttributorCGSCCLegacyPass());
-
// Try to perform OpenMP specific optimizations. This is a (quick!) no-op if
// there are no OpenMP runtime calls present in the module.
if (OptLevel > 1)
// we must insert a no-op module pass to reset the pass manager.
MPM.add(createBarrierNoopPass());
- if (RunPartialInlining)
- MPM.add(createPartialInliningPass());
-
if (OptLevel > 1)
// Remove avail extern fns and globals definitions if we aren't
// compiling an object file for later LTO. For LTO we want to preserve
MPM.add(createGlobalDCEPass());
}
- // Scheduling LoopVersioningLICM when inlining is over, because after that
- // we may see more accurate aliasing. Reason to run this late is that too
- // early versioning may prevent further inlining due to increase of code
- // size. By placing it just after inlining other optimizations which runs
- // later might get benefit of no-alias assumption in clone loop.
- if (UseLoopVersioningLICM) {
- MPM.add(createLoopVersioningLICMPass()); // Do LoopVersioningLICM
- MPM.add(createLICMPass(LicmMssaOptCap, LicmMssaNoAccForPromotionCap,
- /*AllowSpeculation=*/true));
- }
-
// We add a fresh GlobalsModRef run at this point. This is particularly
// useful as the above will have inlined, DCE'ed, and function-attr
// propagated everything. We should at this point have a reasonably minimal
MPM.add(createFloat2IntPass());
MPM.add(createLowerConstantIntrinsicsPass());
- if (EnableMatrix) {
- MPM.add(createLowerMatrixIntrinsicsPass());
- // CSE the pointer arithmetic of the column vectors. This allows alias
- // analysis to establish no-aliasing between loads and stores of different
- // columns of the same matrix.
- MPM.add(createEarlyCSEPass(false));
- }
-
addExtensionsToPM(EP_VectorizerStart, MPM);
// Re-rotate loops in all our loop nests. These may have fallout out of
MPM.add(createConstantMergePass()); // Merge dup global constants
}
- // See comment in the new PM for justification of scheduling splitting at
- // this stage (\ref buildModuleSimplificationPipeline).
- if (EnableHotColdSplit)
- MPM.add(createHotColdSplittingPass());
-
- if (EnableIROutliner)
- MPM.add(createIROutlinerPass());
-
if (MergeFunctions)
MPM.add(createMergeFunctionsPass());