[all-commits] [llvm/llvm-project] 66251f: RegAllocFast: Record internal state based on regis...

[Matt Arsenault via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 66251f7e1de79a7c1620659b7f58352b8c8e892e
      https://github.com/llvm/llvm-project/commit/66251f7e1de79a7c1620659b7f58352b8c8e892e
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2020-06-03 (Wed, 03 Jun 2020)

  Changed paths:
    M llvm/lib/CodeGen/RegAllocFast.cpp
    M llvm/test/CodeGen/AArch64/arm64-fast-isel-conversion-fallback.ll
    M llvm/test/CodeGen/AArch64/arm64-fast-isel-conversion.ll
    M llvm/test/CodeGen/AArch64/arm64-vcvt_f.ll
    M llvm/test/CodeGen/AArch64/fast-isel-sp-adjust.ll
    M llvm/test/CodeGen/AMDGPU/indirect-addressing-term.ll
    M llvm/test/CodeGen/AMDGPU/partial-sgpr-to-vgpr-spills.ll
    M llvm/test/CodeGen/AMDGPU/spill-m0.ll
    M llvm/test/CodeGen/AMDGPU/wwm-reserved.ll
    M llvm/test/CodeGen/ARM/legalize-bitcast.ll
    M llvm/test/CodeGen/Mips/GlobalISel/llvm-ir/fptosi_and_fptoui.ll
    M llvm/test/CodeGen/Mips/atomic-min-max.ll
    M llvm/test/CodeGen/Mips/atomic.ll
    M llvm/test/CodeGen/Mips/implicit-sret.ll
    M llvm/test/CodeGen/PowerPC/addegluecrash.ll
    M llvm/test/CodeGen/PowerPC/vsx.ll
    M llvm/test/CodeGen/X86/2009-04-14-IllegalRegs.ll
    M llvm/test/CodeGen/X86/atomic-unordered.ll
    M llvm/test/CodeGen/X86/atomic32.ll
    M llvm/test/CodeGen/X86/atomic64.ll
    M llvm/test/CodeGen/X86/avx-load-store.ll
    M llvm/test/CodeGen/X86/avx512-mask-zext-bugfix.ll
    M llvm/test/CodeGen/X86/crash-O0.ll
    M llvm/test/CodeGen/X86/extend-set-cc-uses-dbg.ll
    M llvm/test/CodeGen/X86/fast-isel-nontemporal.ll
    M llvm/test/CodeGen/X86/pr1489.ll
    M llvm/test/CodeGen/X86/pr27591.ll
    M llvm/test/CodeGen/X86/pr30430.ll
    M llvm/test/CodeGen/X86/pr30813.ll
    M llvm/test/CodeGen/X86/pr32241.ll
    M llvm/test/CodeGen/X86/pr32284.ll
    M llvm/test/CodeGen/X86/pr32340.ll
    M llvm/test/CodeGen/X86/pr32345.ll
    M llvm/test/CodeGen/X86/pr32451.ll
    M llvm/test/CodeGen/X86/pr34592.ll
    M llvm/test/CodeGen/X86/pr39733.ll
    M llvm/test/CodeGen/X86/pr44749.ll
    M llvm/test/CodeGen/X86/regalloc-fast-missing-live-out-spill.mir
    M llvm/test/CodeGen/X86/swift-return.ll
    M llvm/test/CodeGen/X86/swifterror.ll
    M llvm/test/DebugInfo/X86/op_deref.ll

  Log Message:
  -----------
  RegAllocFast: Record internal state based on register units

Record internal state based on register units. This is often more
efficient as there are typically fewer register units to update
compared to iterating over all the aliases of a register.

Original patch by Matthias Braun, but I've been rebasing and fixing it
for almost 2 years and fixed a few bugs causing intermediate failures
to make this patch independent of the changes in
https://reviews.llvm.org/D52010.