[PATCH] D19401: MachineScheduler: Fully compare top/bottom candidates

[Matthias Braun via llvm-commits]

MatzeB created this revision.
MatzeB added a reviewer: atrick.
MatzeB added a subscriber: llvm-commits.
MatzeB set the repository for this revision to rL LLVM.
Herald added a reviewer: tstellarAMD.
Herald added subscribers: mcrosier, MatzeB.

In bidirectional scheduling this gives more stable results than just
comparing the "reason" fields of the top/bottom node because the reason
field may be higher depending on what other nodes are in the queue.

Repository:
  rL LLVM

http://reviews.llvm.org/D19401

Files:
  include/llvm/CodeGen/MachineScheduler.h
  lib/CodeGen/MachineScheduler.cpp
  test/CodeGen/AArch64/arm64-convert-v4f64.ll
  test/CodeGen/AArch64/bitreverse.ll
  test/CodeGen/AArch64/cxx-tlscc.ll
  test/CodeGen/AArch64/vcvt-oversize.ll
  test/CodeGen/AArch64/vector-fcopysign.ll
  test/CodeGen/AMDGPU/and.ll
  test/CodeGen/AMDGPU/ds_read2_offset_order.ll
  test/CodeGen/AMDGPU/ds_read2st64.ll
  test/CodeGen/AMDGPU/fneg-fabs.f64.ll
  test/CodeGen/AMDGPU/llvm.AMDGPU.rsq.clamped.f64.ll
  test/CodeGen/AMDGPU/move-addr64-rsrc-dead-subreg-writes.ll
  test/CodeGen/AMDGPU/s_addk_i32.ll
  test/CodeGen/AMDGPU/shl_add_constant.ll
  test/CodeGen/AMDGPU/sra.ll
  test/CodeGen/PowerPC/ppc-shrink-wrapping.ll
  test/CodeGen/PowerPC/ppc64-byval-align.ll

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