| ; RUN: opt -passes=jump-threading -S %s -o - | FileCheck %s |
| |
| define i32 @f(ptr %a, i64 %i) { |
| entry: |
| store i64 0, ptr %a, align 8 |
| %p = getelementptr i64, ptr %a, i64 %i |
| %c = icmp eq ptr %p, null |
| ; `%a` is non-null at the end of the block, because we store through it. |
| ; However, `%p` is derived from `%a` via a GEP that is not `inbounds`, therefore we cannot judge `%p` is non-null as well |
| ; and must retain the `icmp` instruction. |
| ; CHECK: %c = icmp eq ptr %p, null |
| br i1 %c, label %if.else, label %if.then |
| if.then: |
| ret i32 0 |
| |
| if.else: |
| ret i32 1 |
| } |
