| ; Regression test for msan not invalidating GlobalsAA. |
| ; RUN: opt < %s -S -passes='require<globals-aa>,module(msan),require<globals-aa>,early-cse<memssa>' 2>&1 | FileCheck %s |
| |
| target triple = "x86_64-unknown-linux" |
| |
| define ptr @foo(ptr %p) local_unnamed_addr sanitize_memory { |
| entry: |
| ret ptr %p |
| } |
| |
| define i32 @test() local_unnamed_addr sanitize_memory { |
| entry: |
| ; CHECK-LABEL: define i32 @test() |
| |
| %x = alloca i32 |
| store i32 7, ptr %x |
| |
| ; CHECK: store i64 0, ptr @__msan_retval_tls |
| ; CHECK-NEXT: call ptr @foo( |
| |
| %call = call ptr @foo(ptr %x) |
| |
| ; If GlobalsAA is eliminated correctly, early-cse should not remove next load. |
| ; CHECK-NEXT: %[[MSRET:.*]] = load i64, ptr @__msan_retval_tls |
| ; CHECK-NEXT: %[[MSCMP:.*]] = icmp ne i64 %[[MSRET]], 0 |
| ; CHECK-NEXT: br i1 %[[MSCMP]], |
| |
| %ret = load i32, ptr %call |
| ret i32 %ret |
| } |
