1 ; RUN: opt < %s -basicaa -gvn -instcombine -S | grep {ret i32 0} 2 ; PR4189 3 @G = external constant [4 x i32] 4 5 define i32 @test(i8* %p, i32 %i) nounwind { 6 entry: 7 %P = getelementptr [4 x i32]* @G, i32 0, i32 %i 8 %A = load i32* %P 9 store i8 4, i8* %p 10 %B = load i32* %P 11 %C = sub i32 %A, %B 12 ret i32 %C 13 } 14
