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Run more function passes in a single run of the pass manager. #1627

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Merged
merged 1 commit into from
Mar 11, 2016
Merged

Run more function passes in a single run of the pass manager. #1627

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12 changes: 5 additions & 7 deletions lib/SILOptimizer/PassManager/Passes.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -239,8 +239,6 @@ void AddSSAPasses(SILPassManager &PM, OptimizationLevelKind OpLevel) {
PM.addEarlyCodeMotion();
PM.addARCSequenceOpts();

PM.addSILLinker();

PM.addSimplifyCFG();
// Only hoist releases very late.
if (OpLevel == OptimizationLevelKind::LowLevel)
Expand All @@ -264,7 +262,7 @@ void swift::runSILOptimizationPasses(SILModule &Module) {
return;
}

SILPassManager PM(&Module, "PreSpecialize");
SILPassManager PM(&Module, "EarlyModulePasses");

// Get rid of apparently dead functions as soon as possible so that
// we do not spend time optimizing them.
Expand All @@ -275,15 +273,15 @@ void swift::runSILOptimizationPasses(SILModule &Module) {
PM.resetAndRemoveTransformations();

// Run an iteration of the high-level SSA passes.
PM.setStageName("HighLevel");
PM.setStageName("HighLevel+EarlyLoopOpt");
AddSSAPasses(PM, OptimizationLevelKind::HighLevel);
AddHighLevelLoopOptPasses(PM);
PM.runOneIteration();
PM.resetAndRemoveTransformations();

PM.setStageName("EarlyLoopOpt");
AddHighLevelLoopOptPasses(PM);

PM.setStageName("MidModulePasses+StackPromote");
PM.addDeadFunctionElimination();
PM.addSILLinker();
PM.addDeadObjectElimination();
PM.addGlobalPropertyOpt();

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