| ; RUN: opt < %s -passes=gvn -S | FileCheck %s |
| |
| ; CHECK-NOT: load |
| ; CHECK-NOT: phi |
| |
| define ptr @cat(ptr %s1, ...) nounwind { |
| entry: |
| br i1 undef, label %bb, label %bb3 |
| |
| bb: ; preds = %entry |
| unreachable |
| |
| bb3: ; preds = %entry |
| store ptr undef, ptr undef, align 4 |
| br i1 undef, label %bb5, label %bb6 |
| |
| bb5: ; preds = %bb3 |
| unreachable |
| |
| bb6: ; preds = %bb3 |
| br label %bb12 |
| |
| bb8: ; preds = %bb12 |
| br i1 undef, label %bb9, label %bb10 |
| |
| bb9: ; preds = %bb8 |
| %0 = load ptr, ptr undef, align 4 ; <ptr> [#uses=0] |
| %1 = load ptr, ptr undef, align 4 ; <ptr> [#uses=0] |
| br label %bb11 |
| |
| bb10: ; preds = %bb8 |
| br label %bb11 |
| |
| bb11: ; preds = %bb10, %bb9 |
| br label %bb12 |
| |
| bb12: ; preds = %bb11, %bb6 |
| br i1 undef, label %bb8, label %bb13 |
| |
| bb13: ; preds = %bb12 |
| ret ptr undef |
| } |
