1; RUN: opt < %s -passes=gvn,instcombine -S | FileCheck %s 2; PR4189 3@G = external constant [4 x i32] 4 5define i32 @test(ptr %p, i32 %i) nounwind { 6entry: 7 %P = getelementptr [4 x i32], ptr @G, i32 0, i32 %i 8 %A = load i32, ptr %P 9 store i8 4, ptr %p 10 %B = load i32, ptr %P 11 %C = sub i32 %A, %B 12 ret i32 %C 13} 14 15; CHECK: define i32 @test(ptr %p, i32 %i) #0 { 16; CHECK-NEXT: entry: 17; CHECK-NEXT: store i8 4, ptr %p, align 1 18; CHECK-NEXT: ret i32 0 19; CHECK-NEXT: } 20