[PATCH] D28458: [CostModel] Improve detection of uniform operands

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon created this revision.
RKSimon added reviewers: mkuper, spatel, andreadb.
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Currently we only match uniform operands against a broadcasted scalar, this patch adds support for matching a broadcasted vector value as well.

We still expect the operand to have come from an argument or global value.


Repository:
  rL LLVM

https://reviews.llvm.org/D28458

Files:
  lib/Analysis/CostModel.cpp
  test/Analysis/CostModel/X86/vshift-ashr-cost.ll
  test/Analysis/CostModel/X86/vshift-lshr-cost.ll
  test/Analysis/CostModel/X86/vshift-shl-cost.ll

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