xref: /llvm-project/llvm/test/Analysis/GlobalsModRef/aliastest.ll (revision 47f0b6630c78ab52c2197ec5e1c2d13a6acffed1)
1; RUN: opt < %s -aa-pipeline=basic-aa,globals-aa -passes="require<globals-aa>,function(gvn)" -S -enable-unsafe-globalsmodref-alias-results | FileCheck %s
2;
3; Note that this test relies on an unsafe feature of GlobalsModRef. While this
4; test is correct and safe, GMR's technique for handling this isn't generally.
5
6@X = internal global i32 4		; <ptr> [#uses=1]
7
8define i32 @test(ptr %P) {
9; CHECK:      @test
10; CHECK-NEXT: store i32 7, ptr %P
11; CHECK-NEXT: store i32 12, ptr @X
12; CHECK-NEXT: ret i32 7
13	store i32 7, ptr %P
14	store i32 12, ptr @X
15	%V = load i32, ptr %P		; <i32> [#uses=1]
16	ret i32 %V
17}
18