| ; RUN: llc < %s |
| |
| ;; |
| ;; Test the sequence: |
| ;; cast -> setle 0, %cast -> br %cond |
| ;; This sequence should cause the cast value to be forwarded twice, |
| ;; i.e., cast is forwarded to the setle and the setle is forwarded |
| ;; to the branch. |
| ;; register argument of the "branch-on-register" instruction, i.e., |
| ;; |
| ;; This produces the bogus output instruction: |
| ;; brlez <NULL VALUE>, .L_SumArray_bb3. |
| ;; This came from %bb1 of sumarrray.ll generated from sumarray.c. |
| |
| define i32 @SumArray(i32 %Num) { |
| %Num.upgrd.1 = alloca i32 ; <i32*> [#uses=2] |
| br label %Top |
| |
| Top: ; preds = %Top, %0 |
| store i32 %Num, i32* %Num.upgrd.1 |
| %reg108 = load i32, i32* %Num.upgrd.1 ; <i32> [#uses=1] |
| %cast1006 = bitcast i32 %reg108 to i32 ; <i32> [#uses=1] |
| %cond1001 = icmp ule i32 %cast1006, 0 ; <i1> [#uses=1] |
| br i1 %cond1001, label %bb6, label %Top |
| |
| bb6: ; preds = %Top |
| ret i32 42 |
| } |
| |
