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llvm-mirror/test/Analysis/GlobalsModRef/pr12351.ll

34 lines
840 B
LLVM

; RUN: opt < %s -basicaa -globals-aa -gvn -S | FileCheck %s
declare void @llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1)
define void @foo(i8* %x, i8* %y) {
call void @llvm.memcpy.p0i8.p0i8.i32(i8* %x, i8* %y, i32 1, i32 1, i1 false);
ret void
}
define void @bar(i8* %y, i8* %z) {
%x = alloca i8
call void @foo(i8* %x, i8* %y)
%t = load i8, i8* %x
store i8 %t, i8* %y
; CHECK: store i8 %t, i8* %y
ret void
}
define i32 @foo2() {
%foo = alloca i32
call void @bar2(i32* %foo)
%t0 = load i32, i32* %foo, align 4
; CHECK: %t0 = load i32, i32* %foo, align 4
ret i32 %t0
}
define void @bar2(i32* %foo) {
store i32 0, i32* %foo, align 4
tail call void @llvm.dbg.value(metadata !{}, i64 0, metadata !{}, metadata !{})
ret void
}
declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnone