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