17 lines
617 B
LLVM
17 lines
617 B
LLVM
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; RUN: opt -disable-output -basic-aa -enable-new-pm=0 -print-memoryssa %s 2>&1 | FileCheck %s
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declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i1) nounwind
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define void @source_clobber(i8* %a, i8* %b) {
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; CHECK-LABEL: @source_clobber(
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; CHECK-NEXT: ; 1 = MemoryDef(liveOnEntry)
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; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* %a, i8* %b, i64 128, i1 false)
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; CHECK-NEXT: ; MemoryUse(1) MayAlias
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; CHECK-NEXT: [[X:%.*]] = load i8, i8* %b
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; CHECK-NEXT: ret void
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;
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* %a, i8* %b, i64 128, i1 false)
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%x = load i8, i8* %b
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ret void
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}
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