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[WebAssembly] Disable some WebAssembly-specific optimization passes at -O0. 

llvm-svn: 258127
This commit is contained in:
Dan Gohman 2016-01-19 14:55:02 +00:00
parent 3196650bf3
commit b13c91f159
1 changed files with 6 additions and 3 deletions
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3
llvm/lib/Target/WebAssembly/WebAssemblyTargetMachine.cpp
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@ -140,6 +140,7 @@ void WebAssemblyPassConfig::addIRPasses() {
addPass(createAtomicExpandPass(TM));
// Optimize "returned" function attributes.
if (getOptLevel() != CodeGenOpt::None)
addPass(createWebAssemblyOptimizeReturned());
TargetPassConfig::addIRPasses();
@ -165,6 +166,7 @@ void WebAssemblyPassConfig::addPreRegAlloc() {
TargetPassConfig::addPreRegAlloc();
// Prepare store instructions for register stackifying.
if (getOptLevel() != CodeGenOpt::None)
addPass(createWebAssemblyStoreResults());
}
@ -206,5 +208,6 @@ void WebAssemblyPassConfig::addPreEmitPass() {
addPass(createWebAssemblyRegNumbering());
// Perform the very last peephole optimizations on the code.
if (getOptLevel() != CodeGenOpt::None)
addPass(createWebAssemblyPeephole());
}