| ; RUN: opt < %s -basicaa -gvn -S | FileCheck %s |
| |
| ; PR15967 |
| ; BasicAA claims no alias when there is (due to a problem when the MaxLookup |
| ; limit was reached). |
| |
| target datalayout = "e" |
| |
| %struct.foo = type { i32, i32 } |
| |
| define i32 @main() { |
| %t = alloca %struct.foo, align 4 |
| %1 = getelementptr inbounds %struct.foo, %struct.foo* %t, i32 0, i32 0 |
| store i32 1, i32* %1, align 4 |
| %2 = getelementptr inbounds %struct.foo, %struct.foo* %t, i64 1 |
| %3 = bitcast %struct.foo* %2 to i8* |
| %4 = getelementptr inbounds i8, i8* %3, i32 -1 |
| store i8 0, i8* %4 |
| %5 = getelementptr inbounds i8, i8* %4, i32 -1 |
| store i8 0, i8* %5 |
| %6 = getelementptr inbounds i8, i8* %5, i32 -1 |
| store i8 0, i8* %6 |
| %7 = getelementptr inbounds i8, i8* %6, i32 -1 |
| store i8 0, i8* %7 |
| %8 = getelementptr inbounds i8, i8* %7, i32 -1 |
| store i8 0, i8* %8 |
| %9 = getelementptr inbounds i8, i8* %8, i32 -1 |
| store i8 0, i8* %9 |
| %10 = getelementptr inbounds i8, i8* %9, i32 -1 |
| store i8 0, i8* %10 |
| %11 = getelementptr inbounds i8, i8* %10, i32 -1 |
| store i8 0, i8* %11 |
| %12 = load i32, i32* %1, align 4 |
| ret i32 %12 |
| ; CHECK: ret i32 %12 |
| } |