[PATCH] D69083: [X86] Only look up boolean reduction cost tables if the reduction is not pairwise.

Craig Topper via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Sat Oct 26 16:43:16 PDT 2019


This revision was automatically updated to reflect the committed changes.
Closed by commit rG1ce8a5b385a1: [X86] Only look up boolean reduction cost tables if the reduction is not… (authored by craig.topper).

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D69083/new/

https://reviews.llvm.org/D69083

Files:
  llvm/lib/Target/X86/X86TargetTransformInfo.cpp


Index: llvm/lib/Target/X86/X86TargetTransformInfo.cpp
===================================================================
--- llvm/lib/Target/X86/X86TargetTransformInfo.cpp
+++ llvm/lib/Target/X86/X86TargetTransformInfo.cpp
@@ -2665,7 +2665,7 @@
   };
 
   // Handle bool allof/anyof patterns.
-  if (ValTy->getVectorElementType()->isIntegerTy(1)) {
+  if (!IsPairwise && ValTy->getVectorElementType()->isIntegerTy(1)) {
     if (ST->hasAVX2())
       if (const auto *Entry = CostTableLookup(AVX2BoolReduction, ISD, MTy))
         return LT.first * Entry->Cost;


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