[PATCH] D61830: [X86][SSE] Disable shouldFoldConstantShiftPairToMask for scalar shifts on AMD targets (PR40758)

Roman Lebedev via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Mon May 13 14:15:34 PDT 2019


lebedev.ri added inline comments.


================
Comment at: lib/Target/X86/X86.td:430
 
+def FeatureFastScalarShiftMasks
+    : SubtargetFeature<
----------------
This is talking about 'scalar', but the hook is '..Constant..'.
This target feature is not specifically about fast shifts by immediate?


Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D61830/new/

https://reviews.llvm.org/D61830





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