1 ; RUN: llc < %s 2 3 ;; 4 ;; Test the sequence: 5 ;; cast -> setle 0, %cast -> br %cond 6 ;; This sequence should cause the cast value to be forwarded twice, 7 ;; i.e., cast is forwarded to the setle and the setle is forwarded 8 ;; to the branch. 9 ;; register argument of the "branch-on-register" instruction, i.e., 10 ;; 11 ;; This produces the bogus output instruction: 12 ;; brlez <NULL VALUE>, .L_SumArray_bb3. 13 ;; This came from %bb1 of sumarrray.ll generated from sumarray.c. 14 15 define i32 @SumArray(i32 %Num) { 16 %Num.upgrd.1 = alloca i32 ; <i32*> [#uses=2] 17 br label %Top 18 19 Top: ; preds = %Top, %0 20 store i32 %Num, i32* %Num.upgrd.1 21 %reg108 = load i32* %Num.upgrd.1 ; <i32> [#uses=1] 22 %cast1006 = bitcast i32 %reg108 to i32 ; <i32> [#uses=1] 23 %cond1001 = icmp ule i32 %cast1006, 0 ; <i1> [#uses=1] 24 br i1 %cond1001, label %bb6, label %Top 25 26 bb6: ; preds = %Top 27 ret i32 42 28 } 29 30
