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Add pass-manager flags to use CFL AA

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Add -use-cfl-aa (and -use-cfl-aa-in-codegen) to add CFL AA in the default pass
managers (for easy testing).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216978 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Hal Finkel 2014-09-02 22:12:54 +00:00
parent d52e9a143f
commit e1b1cac5ad
2 changed files with 11 additions and 0 deletions
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6
lib/CodeGen/Passes.cpp
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@ -99,6 +99,10 @@ static cl::opt<bool> MISchedPostRA("misched-postra", cl::Hidden,
static cl::opt<bool> EarlyLiveIntervals("early-live-intervals", cl::Hidden,
cl::desc("Run live interval analysis earlier in the pipeline"));
static cl::opt<bool> UseCFLAA("use-cfl-aa-in-codegen",
cl::init(false), cl::Hidden,
cl::desc("Enable the new, experimental CFL alias analysis in CodeGen"));
/// Allow standard passes to be disabled by command line options. This supports
/// simple binary flags that either suppress the pass or do nothing.
/// i.e. -disable-mypass=false has no effect.
@ -376,6 +380,8 @@ void TargetPassConfig::addIRPasses() {
// Add TypeBasedAliasAnalysis before BasicAliasAnalysis so that
// BasicAliasAnalysis wins if they disagree. This is intended to help
// support "obvious" type-punning idioms.
if (UseCFLAA)
addPass(createCFLAliasAnalysisPass());
addPass(createTypeBasedAliasAnalysisPass());
addPass(createScopedNoAliasAAPass());
addPass(createBasicAliasAnalysisPass());

5
lib/Transforms/IPO/PassManagerBuilder.cpp
View File

@ -66,6 +66,9 @@ RunSLPAfterLoopVectorization("run-slp-after-loop-vectorization",
cl::desc("Run the SLP vectorizer (and BB vectorizer) after the Loop "
"vectorizer instead of before"));
static cl::opt<bool> UseCFLAA("use-cfl-aa",
cl::init(false), cl::Hidden,
cl::desc("Enable the new, experimental CFL alias analysis"));
PassManagerBuilder::PassManagerBuilder() {
OptLevel = 2;
@ -120,6 +123,8 @@ PassManagerBuilder::addInitialAliasAnalysisPasses(PassManagerBase &PM) const {
// Add TypeBasedAliasAnalysis before BasicAliasAnalysis so that
// BasicAliasAnalysis wins if they disagree. This is intended to help
// support "obvious" type-punning idioms.
if (UseCFLAA)
PM.add(createCFLAliasAnalysisPass());
PM.add(createTypeBasedAliasAnalysisPass());
PM.add(createScopedNoAliasAAPass());
PM.add(createBasicAliasAnalysisPass());