| ; RUN: opt < %s -passes=gvn -S | FileCheck %s |
| |
| @last = external global [65 x ptr] |
| |
| define i32 @NextRootMove(i32 %wtm, i32 %x, i32 %y, i32 %z) { |
| entry: |
| %A = alloca ptr |
| %tmp17618 = load ptr, ptr getelementptr ([65 x ptr], ptr @last, i32 0, i32 1), align 4 |
| store ptr %tmp17618, ptr %A |
| ; CHECK: entry: |
| ; CHECK-NEXT: alloca ptr |
| ; CHECK-NEXT: %tmp17618 = load |
| ; CHECK-NOT: load |
| ; CHECK-NOT: phi |
| br label %cond_true116 |
| |
| cond_true116: |
| %cmp = icmp eq i32 %x, %y |
| br i1 %cmp, label %cond_true128, label %cond_true145 |
| |
| cond_true128: |
| %tmp17625 = load ptr, ptr getelementptr ([65 x ptr], ptr @last, i32 0, i32 1), align 4 |
| store ptr %tmp17625, ptr %A |
| %cmp1 = icmp eq i32 %x, %z |
| br i1 %cmp1 , label %bb98.backedge, label %return.loopexit |
| |
| bb98.backedge: |
| br label %cond_true116 |
| |
| cond_true145: |
| %tmp17631 = load ptr, ptr getelementptr ([65 x ptr], ptr @last, i32 0, i32 1), align 4 |
| store ptr %tmp17631, ptr %A |
| br i1 false, label %bb98.backedge, label %return.loopexit |
| |
| return.loopexit: |
| br label %return |
| |
| return: |
| ret i32 0 |
| } |