emscripten-fastcomp/test/Transforms/InstSimplify/fast-math.ll, branch 1.13.0 LLVM with the emscripten fastcomp javascript backend https://git.amat.us/emscripten-fastcomp/atom/test/Transforms/InstSimplify/fast-math.ll?h=1.13.0 2012-12-12T00:27:46Z Added a slew of SimplifyInstruction floating-point optimizations, many of which take advantage of fast-math flags. Test cases included. 2012-12-12T00:27:46Z Michael Ilseman milseman@apple.com 2012-12-12T00:27:46Z urn:sha1:09ee250e728ccdb7afc6354d777f8319c5a0465c fsub X, +0 ==> X fsub X, -0 ==> X, when we know X is not -0 fsub +/-0.0, (fsub -0.0, X) ==> X fsub nsz +/-0.0, (fsub +/-0.0, X) ==> X fsub nnan ninf X, X ==> 0.0 fadd nsz X, 0 ==> X fadd [nnan ninf] X, (fsub [nnan ninf] 0, X) ==> 0 where nnan and ninf have to occur at least once somewhere in this expression fmul X, 1.0 ==> X git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169940 91177308-0d34-0410-b5e6-96231b3b80d8 Fast-math test for SimplifyInstruction: fold multiply by 0 2012-11-27T01:00:22Z Michael Ilseman milseman@apple.com 2012-11-27T01:00:22Z urn:sha1:bc43fe1efe7e1059308480b4cd8ffffc7175debd Applied the patch, rather than committing it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168656 91177308-0d34-0410-b5e6-96231b3b80d8