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(parent: 9121eb5) | patch
[X86][SSE] Increase PMULLD costs to better match hardware
authorSimon Pilgrim <llvm-dev@redking.me.uk>
Sat, 10 Feb 2018 19:27:10 +0000 (19:27 +0000)
committerSimon Pilgrim <llvm-dev@redking.me.uk>
Sat, 10 Feb 2018 19:27:10 +0000 (19:27 +0000)
commitcb9a02f60e27c834348fd56001ab525235b6edb8
tree8f5279b59aaf93a8ada48f1281b11f4c1ce90b39tree | snapshot
parent9121eb575e321a514fcdfde028d3c05f3735d658commit | diff
[X86][SSE] Increase PMULLD costs to better match hardware

Until Skylake, most hardware could only issue a PMULLD op every other cycle

llvm-svn: 324823
llvm/lib/Target/X86/X86TargetTransformInfo.cpp diff | blob | history
llvm/test/Analysis/CostModel/X86/arith.ll diff | blob | history
llvm/test/Analysis/CostModel/X86/vshift-shl-cost.ll diff | blob | history
Domain: System / Toolchain;