[X86] Enhance combineFMA to look for FNEG behind an EXTRACT_VECTOR_ELT.
authorCraig Topper <craig.topper@intel.com>
Sun, 8 Jul 2018 18:04:00 +0000 (18:04 +0000)
committerCraig Topper <craig.topper@intel.com>
Sun, 8 Jul 2018 18:04:00 +0000 (18:04 +0000)
commit9e17073c218602cbd9e4345ab7c3674ff500b06d
treea9b48402ec46df9d38757f498210e74a0c767940
parent2eced71ecf8d1bf69e219973f1bd5ac19375bb32
[X86] Enhance combineFMA to look for FNEG behind an EXTRACT_VECTOR_ELT.

llvm-svn: 336514
llvm/lib/Target/X86/X86ISelLowering.cpp
llvm/test/CodeGen/X86/avx512-intrinsics-fast-isel.ll
llvm/test/CodeGen/X86/fma4-fneg-combine.ll