| ; RUN: opt -passes=gvn -S < %s | FileCheck %s | |
| ; ModuleID = 'test3.ll' | |
| target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" | |
| define i32 @main(ptr %foo) { | |
| entry: | |
| ; CHECK: load i32, ptr %foo, align 4 | |
| %0 = load i32, ptr %foo, align 4 | |
| store i32 5, ptr undef, align 4 | |
| ; CHECK-NOT: load i32, ptr %foo, align 4 | |
| %1 = load i32, ptr %foo, align 4 | |
| ; CHECK: add i32 %0, %0 | |
| %2 = add i32 %0, %1 | |
| ret i32 %2 | |
| } |