| ; RUN: opt < %s -passes=simplifycfg -simplifycfg-require-and-preserve-domtree=1 -hoist-common-insts=true -S | FileCheck %s | |
| declare void @bar(ptr) | |
| declare void @baz(ptr) | |
| ; CHECK-LABEL: @test_load_combine_metadata( | |
| ; Check that dereferenceable metadata is combined | |
| ; CHECK: load ptr, ptr %p | |
| ; CHECK-SAME: !dereferenceable ![[DEREF:[0-9]+]] | |
| ; CHECK: t: | |
| ; CHECK: f: | |
| define void @test_load_combine_metadata(i1 %c, ptr %p) { | |
| br i1 %c, label %t, label %f | |
| t: | |
| %v1 = load ptr, ptr %p, !dereferenceable !0 | |
| call void @bar(ptr %v1) | |
| br label %cont | |
| f: | |
| %v2 = load ptr, ptr %p, !dereferenceable !1 | |
| call void @baz(ptr %v2) | |
| br label %cont | |
| cont: | |
| ret void | |
| } | |
| ; CHECK: ![[DEREF]] = !{i64 8} | |
| !0 = !{i64 8} | |
| !1 = !{i64 16} |