derek.holloway
7502bf64a4
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29 lines
987 B
LLVM
29 lines
987 B
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -S -passes=memcpyopt -verify-memoryssa | FileCheck %s
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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%T = type { i64, i64 }
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define void @test(ptr %src) {
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; CHECK-LABEL: @test(
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; CHECK-NEXT: [[TMP:%.*]] = alloca i8, align 1
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; CHECK-NEXT: [[DST:%.*]] = alloca i8, align 1
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; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr align 8 [[DST]], ptr align 8 [[SRC:%.*]], i64 1, i1 false)
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; CHECK-NEXT: ret void
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;
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%tmp = alloca i8
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%dst = alloca i8
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call void @llvm.memcpy.p0.p0.i64(ptr align 8 %tmp, ptr align 8 %src, i64 1, i1 false), !noalias !2
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call void @llvm.memcpy.p0.p0.i64(ptr align 8 %dst, ptr align 8 %tmp, i64 1, i1 false)
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ret void
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}
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declare void @llvm.memcpy.p0.p0.i64(ptr, ptr, i64, i1)
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; Check that the noalias for "dst" was removed by checking that the metadata is gone
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; CHECK-NOT: "dst"
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!0 = !{!0}
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!1 = distinct !{!1, !0, !"dst"}
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!2 = distinct !{!1}
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