40 lines
1.9 KiB
LLVM
40 lines
1.9 KiB
LLVM
; RUN: llc < %s
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;; Date: May 28, 2003.
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;; From: test/Programs/External/SPEC/CINT2000/254.gap.llvm.bc
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;; Function: int %OpenOutput(sbyte* %filename.1)
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;;
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;; Error: A sequence of GEPs is folded incorrectly by llc during selection
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;; causing an assertion about a dynamic casting error.
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;; This code sequence was produced (correctly) by preselection
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;; from a nested pair of ConstantExpr getelementptrs.
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;; The code below is the output of preselection.
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;; The original ConstantExprs are included in a comment.
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;;
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;; Cause: FoldGetElemChain() was inserting an extra leading 0 even though
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;; the first instruction in the sequence contributes no indices.
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;; The next instruction contributes a leading non-zero so another
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;; zero should not be added before it!
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;;
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%FileType = type { i32, [256 x i8], i32, i32, i32, i32 }
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@OutputFiles = external global [16 x %FileType] ; <[16 x %FileType]*> [#uses=1]
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@Output = internal global %FileType* null ; <%FileType**> [#uses=1]
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define internal i32 @OpenOutput(i8* %filename.1) {
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entry:
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%tmp.0 = load %FileType** @Output ; <%FileType*> [#uses=1]
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%tmp.4 = getelementptr %FileType* %tmp.0, i64 1 ; <%FileType*> [#uses=1]
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%addrOfGlobal = getelementptr [16 x %FileType]* @OutputFiles, i64 0 ; <[16 x %FileType]*> [#uses=1]
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%constantGEP = getelementptr [16 x %FileType]* %addrOfGlobal, i64 1 ; <[16 x %FileType]*> [#uses=1]
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%constantGEP.upgrd.1 = getelementptr [16 x %FileType]* %constantGEP, i64 0, i64 0 ; <%FileType*> [#uses=1]
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%tmp.10 = icmp eq %FileType* %tmp.4, %constantGEP.upgrd.1 ; <i1> [#uses=1]
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br i1 %tmp.10, label %return, label %endif.0
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endif.0: ; preds = %entry
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ret i32 0
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return: ; preds = %entry
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ret i32 1
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}
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