| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt < %s -newgvn -enable-phi-of-ops=true -S | FileCheck %s |
| ;; Make sure we don't incorrectly use predicateinfo to simplify phi of ops cases |
| source_filename = "pr34135.ll" |
| |
| define void @snork(i32 %arg) { |
| ; CHECK-LABEL: @snork( |
| ; CHECK-NEXT: bb: |
| ; CHECK-NEXT: [[TMP:%.*]] = sext i32 [[ARG:%.*]] to i64 |
| ; CHECK-NEXT: br label [[BB1:%.*]] |
| ; CHECK: bb1: |
| ; CHECK-NEXT: [[TMP2:%.*]] = phi i64 [ 0, [[BB:%.*]] ], [ [[TMP3:%.*]], [[BB1]] ] |
| ; CHECK-NEXT: [[TMP3]] = add i64 [[TMP2]], 1 |
| ; CHECK-NEXT: [[TMP4:%.*]] = icmp slt i64 [[TMP3]], [[TMP]] |
| ; CHECK-NEXT: br i1 [[TMP4]], label [[BB1]], label [[BB7:%.*]] |
| ; CHECK: bb5: |
| ; CHECK-NEXT: [[TMP6:%.*]] = icmp sgt i64 [[TMP]], 1 |
| ; CHECK-NEXT: br i1 [[TMP6]], label [[BB7]], label [[BB9:%.*]] |
| ; CHECK: bb7: |
| ; CHECK-NEXT: br label [[BB5:%.*]] |
| ; CHECK: bb9: |
| ; CHECK-NEXT: unreachable |
| ; |
| bb: |
| %tmp = sext i32 %arg to i64 |
| br label %bb1 |
| |
| bb1: ; preds = %bb1, %bb |
| %tmp2 = phi i64 [ 0, %bb ], [ %tmp3, %bb1 ] |
| %tmp3 = add i64 %tmp2, 1 |
| %tmp4 = icmp slt i64 %tmp3, %tmp |
| br i1 %tmp4, label %bb1, label %bb7 |
| |
| bb5: ; preds = %bb7 |
| %tmp6 = icmp sgt i64 %tmp8, 1 |
| br i1 %tmp6, label %bb7, label %bb9 |
| |
| bb7: ; preds = %bb5, %bb1 |
| %tmp8 = phi i64 [ undef, %bb5 ], [ %tmp, %bb1 ] |
| br label %bb5 |
| |
| bb9: ; preds = %bb5 |
| unreachable |
| } |
