Thorsten Schütt d8b17f2fb6 [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

2024-10-19 09:41:43 +02:00

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