[PATCH] D24420: AMDGPU: Use brev for materializing SGPR constants

[Matt Arsenault via llvm-commits]

arsenm created this revision.
arsenm added a subscriber: llvm-commits.
Herald added a reviewer: tstellarAMD.
Herald added subscribers: nhaehnle, wdng, arsenm.

This is already done with VGPR immediates and saves 4 bytes.

https://reviews.llvm.org/D24420

Files:
  lib/Target/AMDGPU/SIShrinkInstructions.cpp
  test/CodeGen/AMDGPU/bitreverse-inline-immediates.ll
  test/CodeGen/AMDGPU/fcopysign.f32.ll
  test/CodeGen/AMDGPU/fcopysign.f64.ll
  test/CodeGen/AMDGPU/llvm.round.f64.ll
  test/CodeGen/AMDGPU/llvm.round.ll

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