masahi commented on a change in pull request #9223:
URL: https://github.com/apache/tvm/pull/9223#discussion_r728532649
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File path: src/target/llvm/llvm_common.cc
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@@ -106,10 +106,23 @@ void ParseLLVMTargetOptions(const Target& target,
std::string* triple, std::stri
#if TVM_LLVM_VERSION < 50
opt.LessPreciseFPMADOption = true;
#endif
- opt.AllowFPOpFusion = llvm::FPOpFusion::Fast;
- opt.UnsafeFPMath = false;
- opt.NoInfsFPMath = false;
+ // We depend on generating IR with proper fast math flags to control fast
math
+ // semantics. These just enable these optimizations if the proper IR flags
+ // are set.
+ opt.UnsafeFPMath = true;
+ opt.NoInfsFPMath = true;
Review comment:
Better not to change the default values unless there is a good reason.
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