xref: /llvm-project/llvm/test/Analysis/BasicAA/memset-pattern.ll (revision d1314d0152f242c618caafce264fccbc47273d84)
1; RUN: opt -mtriple=x86_64 -aa-pipeline=basic-aa -passes=inferattrs,aa-eval -print-all-alias-modref-info -disable-output 2>&1 %s | FileCheck %s
2
3define void @test_memset_pattern4_const_size(ptr noalias %a, i32 %pattern) {
4; CHECK-LABEL: Function: test_memset_pattern4_const_size
5; CHECK:      Just Mod:  Ptr: i8* %a	<->  call void @llvm.experimental.memset.pattern.p0.i32.i64(ptr %a, i32 %pattern, i64 17, i1 false)
6; CHECK-NEXT: Just Mod:  Ptr: i8* %a.gep.1	<->  call void @llvm.experimental.memset.pattern.p0.i32.i64(ptr %a, i32 %pattern, i64 17, i1 false)
7; CHECK-NEXT: NoModRef:  Ptr: i8* %a.gep.129	<->  call void @llvm.experimental.memset.pattern.p0.i32.i64(ptr %a, i32 %pattern, i64 17, i1 false)
8
9entry:
10  load i8, ptr %a
11  call void @llvm.experimental.memset.pattern(ptr %a, i32 %pattern, i64 17, i1 0)
12  %a.gep.1 = getelementptr i8, ptr %a, i32 1
13  store i8 0, ptr %a.gep.1
14  %a.gep.129 = getelementptr i8, ptr %a, i32 129
15  store i8 1, ptr %a.gep.129
16
17  ret void
18}
19