[LLVMdev] assert in InnerLoopVectorizer::createEmptyLoop

[Akira Hatanaka]

I filed a bug (14692). Please take a look.

On Fri, Dec 21, 2012 at 1:53 PM, Chandler Carruth <chandlerc at google.com>wrote:

> Please file a bug for these types of issues.
>
>
> On Fri, Dec 21, 2012 at 1:49 PM, Akira Hatanaka <ahatanak at gmail.com>wrote:
>
>> I am seeing an assert when I compile the attached program with clang:
>>
>> $ clang -fno-strict-aliasing -target mips64el-unknown-linux -O3
>> -fomit-frame-pointer -S test1.c -o test1.ll -emit-llvm
>>
>>
>> It asserts when LoopVectorize.cpp:506 is executed. It looks like it is
>> complaining because it is trying to zero-extend an i64 (type
>> Count->getType() returns i64) to an i32 (IdxTy).
>>
>> if (Count->getType() != IdxTy) {
>>     // The exit count can be of pointer type. Convert it to the correct
>>     // integer type.
>>     if (ExitCount->getType()->isPointerTy())
>>       Count = CastInst::CreatePointerCast(Count, IdxTy, "ptrcnt.to.int",
>> Loc);
>>     else
>>       Count = CastInst::CreateZExtOrBitCast(Count, IdxTy, "zext.cnt",
>> Loc); // <= this line
>>   }
>>
>>
>>
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>>
>>
>
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