1; Regression test for msan not invalidating GlobalsAA. 2; RUN: opt < %s -S -passes='require<globals-aa>,module(msan),require<globals-aa>,early-cse<memssa>' 2>&1 | FileCheck %s 3 4target triple = "x86_64-unknown-linux" 5 6define ptr @foo(ptr %p) local_unnamed_addr sanitize_memory { 7entry: 8 ret ptr %p 9} 10 11define i32 @test() local_unnamed_addr sanitize_memory { 12entry: 13 ; CHECK-LABEL: define i32 @test() 14 15 %x = alloca i32 16 store i32 7, ptr %x 17 18 ; CHECK: store i64 0, ptr @__msan_retval_tls 19 ; CHECK-NEXT: call ptr @foo( 20 21 %call = call ptr @foo(ptr %x) 22 23 ; If GlobalsAA is eliminated correctly, early-cse should not remove next load. 24 ; CHECK-NEXT: %[[MSRET:.*]] = load i64, ptr @__msan_retval_tls 25 ; CHECK-NEXT: %[[MSCMP:.*]] = icmp ne i64 %[[MSRET]], 0 26 ; CHECK-NEXT: br i1 %[[MSCMP]], 27 28 %ret = load i32, ptr %call 29 ret i32 %ret 30} 31