[PATCH] D25970: DCE math library calls with a constant operand
Eli Friedman via llvm-commits
llvm-commits at lists.llvm.org
Tue Oct 25 14:59:20 PDT 2016
efriedma created this revision.
efriedma added reviewers: scanon, majnemer.
efriedma added subscribers: llvm-commits, davidxl, xur, hfinkel.
efriedma set the repository for this revision to rL LLVM.
On platforms which use -fmath-errno, math libcalls without any uses require some extra checks to figure out if they are actually dead.
Fixes https://llvm.org/bugs/show_bug.cgi?id=30464 .
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