#include "llvm/Transforms/IPO/PassManagerBuilder.h"
-
#include "llvm-c/Transforms/PassManagerBuilder.h"
-
-#include "llvm/PassManager.h"
-#include "llvm/DefaultPasses.h"
-#include "llvm/PassManager.h"
+#include "llvm/ADT/SmallVector.h"
#include "llvm/Analysis/Passes.h"
#include "llvm/Analysis/Verifier.h"
+#include "llvm/PassManager.h"
#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/ManagedStatic.h"
#include "llvm/Target/TargetLibraryInfo.h"
+#include "llvm/Transforms/IPO.h"
#include "llvm/Transforms/Scalar.h"
#include "llvm/Transforms/Vectorize.h"
-#include "llvm/Transforms/IPO.h"
-#include "llvm/ADT/SmallVector.h"
-#include "llvm/Support/ManagedStatic.h"
using namespace llvm;
static cl::opt<bool>
-RunVectorization("vectorize", cl::desc("Run vectorization passes"));
+RunLoopVectorization("vectorize-loops",
+ cl::desc("Run the Loop vectorization passes"));
+
+static cl::opt<bool>
+LateVectorization("late-vectorize", cl::init(true), cl::Hidden,
+ cl::desc("Run the vectorization pasess late in the pass "
+ "pipeline (after the inliner)"));
+
+static cl::opt<bool>
+RunSLPVectorization("vectorize-slp",
+ cl::desc("Run the SLP vectorization passes"));
+
+static cl::opt<bool>
+RunBBVectorization("vectorize-slp-aggressive",
+ cl::desc("Run the BB vectorization passes"));
static cl::opt<bool>
UseGVNAfterVectorization("use-gvn-after-vectorization",
SizeLevel = 0;
LibraryInfo = 0;
Inliner = 0;
- DisableSimplifyLibCalls = false;
DisableUnitAtATime = false;
DisableUnrollLoops = false;
- Vectorize = RunVectorization;
+ BBVectorize = RunBBVectorization;
+ SLPVectorize = RunSLPVectorization;
+ LoopVectorize = RunLoopVectorization;
+ LateVectorize = LateVectorization;
}
PassManagerBuilder::~PassManagerBuilder() {
else
MPM.add(createScalarReplAggregatesPass(-1, false));
MPM.add(createEarlyCSEPass()); // Catch trivial redundancies
- if (!DisableSimplifyLibCalls)
- MPM.add(createSimplifyLibCallsPass()); // Library Call Optimizations
MPM.add(createJumpThreadingPass()); // Thread jumps.
MPM.add(createCorrelatedValuePropagationPass()); // Propagate conditionals
MPM.add(createCFGSimplificationPass()); // Merge & remove BBs
MPM.add(createLoopIdiomPass()); // Recognize idioms like memset.
MPM.add(createLoopDeletionPass()); // Delete dead loops
- if (Vectorize) {
- MPM.add(createLoopVectorizePass());
- MPM.add(createLICMPass());
- }
+ if (!LateVectorize && LoopVectorize)
+ MPM.add(createLoopVectorizePass(DisableUnrollLoops));
if (!DisableUnrollLoops)
MPM.add(createLoopUnrollPass()); // Unroll small loops
addExtensionsToPM(EP_ScalarOptimizerLate, MPM);
- if (Vectorize) {
+ if (SLPVectorize)
+ MPM.add(createSLPVectorizerPass()); // Vectorize parallel scalar chains.
+
+ if (BBVectorize) {
MPM.add(createBBVectorizePass());
MPM.add(createInstructionCombiningPass());
if (OptLevel > 1 && UseGVNAfterVectorization)
- MPM.add(createGVNPass()); // Remove redundancies
+ MPM.add(createGVNPass()); // Remove redundancies
else
- MPM.add(createEarlyCSEPass()); // Catch trivial redundancies
+ MPM.add(createEarlyCSEPass()); // Catch trivial redundancies
+
+ // BBVectorize may have significantly shortened a loop body; unroll again.
+ if (!DisableUnrollLoops)
+ MPM.add(createLoopUnrollPass());
}
MPM.add(createAggressiveDCEPass()); // Delete dead instructions
- MPM.add(createCFGSimplificationPass()); // Merge & remove BBs
+ MPM.add(createCFGSimplificationPass()); // Merge & remove BBs
MPM.add(createInstructionCombiningPass()); // Clean up after everything.
+ // As an experimental mode, run any vectorization passes in a separate
+ // pipeline from the CGSCC pass manager that runs iteratively with the
+ // inliner.
+ if (LateVectorize && LoopVectorize) {
+ // FIXME: This is a HACK! The inliner pass above implicitly creates a CGSCC
+ // pass manager that we are specifically trying to avoid. To prevent this
+ // we must insert a no-op module pass to reset the pass manager.
+ MPM.add(createBarrierNoopPass());
+
+ // Add the various vectorization passes and relevant cleanup passes for
+ // them since we are no longer in the middle of the main scalar pipeline.
+ MPM.add(createLoopVectorizePass(DisableUnrollLoops));
+ MPM.add(createInstructionCombiningPass());
+ MPM.add(createCFGSimplificationPass());
+ }
+
if (!DisableUnitAtATime) {
// FIXME: We shouldn't bother with this anymore.
MPM.add(createStripDeadPrototypesPass()); // Get rid of dead prototypes
// for a main function. If main is defined, mark all other functions
// internal.
if (Internalize)
- PM.add(createInternalizePass(true));
+ PM.add(createInternalizePass("main"));
// Propagate constants at call sites into the functions they call. This
// opens opportunities for globalopt (and inlining) by substituting function
// The IPO passes may leave cruft around. Clean up after them.
PM.add(createInstructionCombiningPass());
PM.add(createJumpThreadingPass());
+
// Break up allocas
if (UseNewSROA)
PM.add(createSROAPass());
PM.add(createLICMPass()); // Hoist loop invariants.
PM.add(createGVNPass(DisableGVNLoadPRE)); // Remove redundancies.
PM.add(createMemCpyOptPass()); // Remove dead memcpys.
+
// Nuke dead stores.
PM.add(createDeadStoreEliminationPass());
PM.add(createGlobalDCEPass());
}
-LLVMPassManagerBuilderRef LLVMPassManagerBuilderCreate(void) {
+inline PassManagerBuilder *unwrap(LLVMPassManagerBuilderRef P) {
+ return reinterpret_cast<PassManagerBuilder*>(P);
+}
+
+inline LLVMPassManagerBuilderRef wrap(PassManagerBuilder *P) {
+ return reinterpret_cast<LLVMPassManagerBuilderRef>(P);
+}
+
+LLVMPassManagerBuilderRef LLVMPassManagerBuilderCreate() {
PassManagerBuilder *PMB = new PassManagerBuilder();
return wrap(PMB);
}
void
LLVMPassManagerBuilderSetDisableSimplifyLibCalls(LLVMPassManagerBuilderRef PMB,
LLVMBool Value) {
- PassManagerBuilder *Builder = unwrap(PMB);
- Builder->DisableSimplifyLibCalls = Value;
+ // NOTE: The simplify-libcalls pass has been removed.
}
void
void LLVMPassManagerBuilderPopulateLTOPassManager(LLVMPassManagerBuilderRef PMB,
LLVMPassManagerRef PM,
- bool Internalize,
- bool RunInliner) {
+ LLVMBool Internalize,
+ LLVMBool RunInliner) {
PassManagerBuilder *Builder = unwrap(PMB);
PassManagerBase *LPM = unwrap(PM);
- Builder->populateLTOPassManager(*LPM, Internalize, RunInliner);
+ Builder->populateLTOPassManager(*LPM, Internalize != 0, RunInliner != 0);
}
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