derek.holloway
7502bf64a4
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27 lines
1.4 KiB
LLVM
27 lines
1.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -passes=instsimplify -S | FileCheck %s
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define <16 x i8> @redundant_insert_extract_chain(<16 x i8> %x) {
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; CHECK-LABEL: @redundant_insert_extract_chain(
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; CHECK-NEXT: ret <16 x i8> [[X:%.*]]
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;
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%inserted = call <vscale x 32 x i8> @llvm.vector.insert.nxv32i8.v16i8(<vscale x 32 x i8> undef, <16 x i8> %x, i64 0)
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%extracted = call <16 x i8> @llvm.vector.extract.v16i8.nxv32i8(<vscale x 32 x i8> %inserted, i64 0)
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ret <16 x i8> %extracted
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}
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define <8 x i8> @non_redundant_insert_extract_chain(<16 x i8> %x) {
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; CHECK-LABEL: @non_redundant_insert_extract_chain(
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; CHECK-NEXT: [[INSERTED:%.*]] = call <vscale x 32 x i8> @llvm.vector.insert.nxv32i8.v16i8(<vscale x 32 x i8> undef, <16 x i8> [[X:%.*]], i64 0)
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; CHECK-NEXT: [[EXTRACTED:%.*]] = call <8 x i8> @llvm.vector.extract.v8i8.nxv32i8(<vscale x 32 x i8> [[INSERTED]], i64 0)
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; CHECK-NEXT: ret <8 x i8> [[EXTRACTED]]
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;
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%inserted = call <vscale x 32 x i8> @llvm.vector.insert.nxv32i8.v16i8(<vscale x 32 x i8> undef, <16 x i8> %x, i64 0)
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%extracted = call <8 x i8> @llvm.vector.extract.v8i8.nxv32i8(<vscale x 32 x i8> %inserted, i64 0)
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ret <8 x i8> %extracted
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}
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declare <16 x i8> @llvm.vector.extract.v16i8.nxv32i8(<vscale x 32 x i8>, i64)
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declare <8 x i8> @llvm.vector.extract.v8i8.nxv32i8(<vscale x 32 x i8>, i64)
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declare <vscale x 32 x i8> @llvm.vector.insert.nxv32i8.v16i8(<vscale x 32 x i8>, <16 x i8>, i64)
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