[PATCH] D28507: [TM] Restore default TargetOptions in TargetMachine::resetTargetOptions.
Justin Lebar via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Mon Jan 9 19:40:07 PST 2017
jlebar added a comment.
Shout out to rr [1]. I went from "huh, this seems wrong" to finding the responsible code in about 30 seconds. Put a breakpoint where TargetOptions.UnsafeFPMath is read, hit the breakpoint, `watch -l TargetOptions.UnsafeFPMath`, reverse continue. Bam.
[1] http://rr-project.org/
https://reviews.llvm.org/D28507
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