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02d0a11d91
When an aggregate contains an opaque type its size cannot be determined. This triggers an "Invalid GetElementPtrInst indices for type" assert in function checkGEPType. The fix suppresses the conversion in this case. http://reviews.llvm.org/D20319 llvm-svn: 270479
33 lines
1.1 KiB
LLVM
33 lines
1.1 KiB
LLVM
; RUN: opt < %s -instcombine -disable-output
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; Checks that bitcasts are not converted into GEP when
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; when the size of an aggregate cannot be determined.
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%swift.opaque = type opaque
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%SQ = type <{ [8 x i8] }>
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%Si = type <{ i64 }>
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%V = type <{ <{ %Vs4Int8, %Vs4Int8, %Vs4Int8, %Vs4Int8, %Vs4Int8, %Vs4Int8, %Vs4Int8, %Vs4Int8 }>, %Si, %SQ, %SQ, %Si, %swift.opaque }>
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%Vs4Int8 = type <{ i8 }>
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%swift.type = type { i64 }
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declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture readonly,
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i64, i32, i1) #8
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@_swift_slowAlloc = external global i8* (i64, i64)*
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declare i8* @rt_swift_slowAlloc(i64, i64)
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define %swift.opaque* @_TwTkV([24 x i8]* %dest, %swift.opaque* %src,
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%swift.type* %bios_boot_params) #0 {
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entry:
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%0 = bitcast %swift.opaque* %src to %V*
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%1 = call noalias i8* @rt_swift_slowAlloc(i64 40, i64 0) #11
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%2 = bitcast [24 x i8]* %dest to i8**
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store i8* %1, i8** %2, align 8
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%3 = bitcast i8* %1 to %V*
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%4 = bitcast %V* %3 to i8*
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%5 = bitcast %V* %0 to i8*
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* %4, i8* %5, i64 40, i32 1, i1 false)
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%6 = bitcast %V* %3 to %swift.opaque*
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ret %swift.opaque* %6
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}
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