40 lines
1.7 KiB
LLVM
40 lines
1.7 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
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; RUN: opt -S -passes=memcpyopt < %s | FileCheck %s
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@g1 = external global i8
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@g2 = external global [64 x i8]
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@g3 = global i8 0, align 1
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define void @func() {
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; CHECK-LABEL: define void @func() {
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; CHECK-NEXT: [[ENTRY:.*:]]
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; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr getelementptr inbounds (i8, ptr @g2, i64 16), ptr getelementptr inbounds nuw (i8, ptr @g2, i64 16), i64 20, i1 false)
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; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr @g1, ptr getelementptr inbounds (i8, ptr @g2, i64 24), i64 1, i1 false)
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; CHECK-NEXT: ret void
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;
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entry:
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call void @llvm.memcpy.p0.p0.i64(ptr getelementptr inbounds (i8, ptr @g2, i64 16), ptr getelementptr inbounds nuw (i8, ptr @g2, i64 16), i64 20, i1 false)
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call void @llvm.memcpy.p0.p0.i64(ptr @g1, ptr getelementptr inbounds (i8, ptr @g2, i64 24), i64 1, i1 false)
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ret void
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}
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define void @func2(ptr %p) {
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; CHECK-LABEL: define void @func2(
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; CHECK-SAME: ptr [[P:%.*]]) {
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; CHECK-NEXT: [[ENTRY:.*:]]
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; CHECK-NEXT: [[GEP1:%.*]] = getelementptr i8, ptr [[P]], i64 32
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; CHECK-NEXT: [[GEP2:%.*]] = getelementptr i8, ptr [[P]], i64 34
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; CHECK-NEXT: [[GEP3:%.*]] = getelementptr i8, ptr [[P]], i64 32
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; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr [[GEP1]], ptr [[GEP3]], i64 32, i1 false)
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; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr @g3, ptr [[GEP2]], i64 1, i1 false)
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; CHECK-NEXT: ret void
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;
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entry:
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%gep1 = getelementptr i8, ptr %p, i64 32
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%gep2 = getelementptr i8, ptr %p, i64 34
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%gep3 = getelementptr i8, ptr %p, i64 32
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call void @llvm.memcpy.p0.p0.i64(ptr %gep1, ptr %gep3, i64 32, i1 false)
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call void @llvm.memcpy.p0.p0.i64(ptr @g3, ptr %gep2, i64 1, i1 false)
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ret void
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}
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