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51 lines
2.0 KiB
LLVM
51 lines
2.0 KiB
LLVM
; RUN: llvm-upgrade %s | llvm-as | llc
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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 { int, [256 x sbyte], int, int, int, int }
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%OutputFiles = uninitialized global [16 x %FileType]
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%Output = internal global %FileType* null
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implementation; Functions:
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internal int %OpenOutput(sbyte* %filename.1) {
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entry:
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%tmp.0 = load %FileType** %Output
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%tmp.4 = getelementptr %FileType* %tmp.0, long 1
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;;------ Original instruction in 254.gap.llvm.bc:
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;; %tmp.10 = seteq { int, [256 x sbyte], int, int, int, int }* %tmp.4, getelementptr ([16 x { int, [256 x sbyte], int, int, int, int }]* getelementptr ([16 x { int, [256 x sbyte], int, int, int, int }]* %OutputFiles, long 1), long 0, long 0)
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;;------ Code sequence produced by preselection phase for above instr:
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;; This code sequence is folded incorrectly by llc during selection
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;; causing an assertion about a dynamic casting error.
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%addrOfGlobal = getelementptr [16 x %FileType]* %OutputFiles, long 0
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%constantGEP = getelementptr [16 x %FileType]* %addrOfGlobal, long 1
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%constantGEP = getelementptr [16 x %FileType]* %constantGEP, long 0, long 0
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%tmp.10 = seteq %FileType* %tmp.4, %constantGEP
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br bool %tmp.10, label %return, label %endif.0
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endif.0:
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ret int 0
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return:
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ret int 1
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}
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