diff options
| -rw-r--r-- | lib/Target/JSBackend/JSBackend.cpp | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/lib/Target/JSBackend/JSBackend.cpp b/lib/Target/JSBackend/JSBackend.cpp index 9bc1764042..56e125c3f3 100644 --- a/lib/Target/JSBackend/JSBackend.cpp +++ b/lib/Target/JSBackend/JSBackend.cpp @@ -2339,8 +2339,16 @@ bool JSTargetMachine::addPassesToEmitFile(PassManagerBase &PM, assert(FileType == TargetMachine::CGFT_AssemblyFile); PM.add(createExpandI64Pass()); - PM.add(createSimplifyAllocasPass()); - PM.add(new JSWriter(o, getOptLevel())); + + CodeGenOpt::Level OptLevel = getOptLevel(); + + // When optimizing, there shouldn't be any opportunities for SimplifyAllocas + // because the regular optimizer should have taken them all (GVN, and possibly + // also SROA). + if (OptLevel == CodeGenOpt::None) + PM.add(createSimplifyAllocasPass()); + + PM.add(new JSWriter(o, OptLevel)); return false; } |