1 ; In this test, a local alloca cannot alias an incoming argument. 2 3 ; RUN: opt < %s -basicaa -gvn -instcombine -S | FileCheck %s 4 5 ; CHECK: define i32 @test 6 ; CHECK-NEXT: ret i32 0 7 8 define i32 @test(i32* %P) { 9 %X = alloca i32 10 %V1 = load i32* %P 11 store i32 0, i32* %X 12 %V2 = load i32* %P 13 %Diff = sub i32 %V1, %V2 14 ret i32 %Diff 15 } 16