[all-commits] [llvm/llvm-project] d8b17f: [GlobalISel] Combine G_UNMERGE_VALUES with anyext ...

[Thorsten Schütt via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: d8b17f2fb6129dba99c2ef843e5c38cc4414ae67
      https://github.com/llvm/llvm-project/commit/d8b17f2fb6129dba99c2ef843e5c38cc4414ae67
  Author: Thorsten Schütt <schuett at gmail.com>
  Date:   2024-10-19 (Sat, 19 Oct 2024)

  Changed paths:
    M llvm/include/llvm/CodeGen/GlobalISel/CombinerHelper.h
    M llvm/include/llvm/CodeGen/GlobalISel/GenericMachineInstrs.h
    M llvm/include/llvm/Target/GlobalISel/Combine.td
    M llvm/lib/CodeGen/GlobalISel/CombinerHelper.cpp
    M llvm/lib/Target/AArch64/AArch64Combine.td
    M llvm/test/CodeGen/AArch64/GlobalISel/combine-shift-immed-mismatch-crash.mir
    M llvm/test/CodeGen/AArch64/GlobalISel/combine-shifts-undef.mir
    M llvm/test/CodeGen/AArch64/GlobalISel/combine-unmerge.mir
    M llvm/test/CodeGen/AArch64/GlobalISel/legalize-shuffle-vector-widen-crash.ll
    M llvm/test/CodeGen/AArch64/add.ll
    M llvm/test/CodeGen/AArch64/andorxor.ll
    M llvm/test/CodeGen/AArch64/arm64-extract-insert-varidx.ll
    M llvm/test/CodeGen/AArch64/bitcast.ll
    M llvm/test/CodeGen/AArch64/concat-vector.ll
    M llvm/test/CodeGen/AArch64/fptoi.ll
    M llvm/test/CodeGen/AArch64/fptosi-sat-scalar.ll
    M llvm/test/CodeGen/AArch64/fptosi-sat-vector.ll
    M llvm/test/CodeGen/AArch64/fptoui-sat-scalar.ll
    M llvm/test/CodeGen/AArch64/fptoui-sat-vector.ll
    M llvm/test/CodeGen/AArch64/load.ll
    M llvm/test/CodeGen/AArch64/mul.ll
    M llvm/test/CodeGen/AArch64/neon-bitwise-instructions.ll
    M llvm/test/CodeGen/AArch64/neon-compare-instructions.ll
    M llvm/test/CodeGen/AArch64/sext.ll
    M llvm/test/CodeGen/AArch64/sub.ll
    M llvm/test/CodeGen/AArch64/xtn.ll
    M llvm/test/CodeGen/AArch64/zext.ll

  Log Message:
  -----------
  [GlobalISel] Combine G_UNMERGE_VALUES with anyext and build vector (#112370)

G_UNMERGE_VALUES (G_ANYEXT (G_BUILD_VECTOR))

ag G_UNMERGE_VALUES llvm/test/CodeGen/AArch64/GlobalISel | grep ANYEXT 
[ANYEXT] is build vector or shuffle vector

Prior art:
https://reviews.llvm.org/D87117
https://reviews.llvm.org/D87166
https://reviews.llvm.org/D87174
https://reviews.llvm.org/D87427

; CHECK-NEXT: [[BUILD_VECTOR2:%[0-9]+]]:_(<8 x s8>) = G_BUILD_VECTOR 
[[C2]](s8), [[C2]](s8), [[C2]](s8), [[C2]](s8), [[DEF1]](s8),
[[DEF1]](s8), [[DEF1]](s8), [[DEF1]](s8)

; CHECK-NEXT: [[ANYEXT1:%[0-9]+]]:_(<8 x s16>) = G_ANYEXT
[[BUILD_VECTOR2]](<8 x s8>)

; CHECK-NEXT: [[UV10:%[0-9]+]]:_(<4 x s16>), [[UV11:%[0-9]+]]:_(<4 x
s16>) = G_UNMERGE_VALUES
              [[ANYEXT1]](<8 x s16>)

Test:
llvm/test/CodeGen/AArch64/GlobalISel/combine-unmerge.mir



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