[PATCH] D92511: [RISCV] Remove RISCVMergeBaseOffsetOpt from the -O0 pass pipeline.
Craig Topper via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Wed Dec 2 14:24:57 PST 2020
craig.topper created this revision.
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Internally the pass skips any function with the optnone attribute. But that still requires checking each function. If the opt level is set to None we might as well just skip putting in the pipeline at all. This what is already done for many of the passes added by TargetPassConfig.
https://reviews.llvm.org/D92511
Files:
llvm/lib/Target/RISCV/RISCVTargetMachine.cpp
Index: llvm/lib/Target/RISCV/RISCVTargetMachine.cpp
===================================================================
--- llvm/lib/Target/RISCV/RISCVTargetMachine.cpp
+++ llvm/lib/Target/RISCV/RISCVTargetMachine.cpp
@@ -182,5 +182,6 @@
}
void RISCVPassConfig::addPreRegAlloc() {
- addPass(createRISCVMergeBaseOffsetOptPass());
+ if (TM->getOptLevel() != CodeGenOpt::None)
+ addPass(createRISCVMergeBaseOffsetOptPass());
}
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