[llvm-dev] error of using GATHER intrinsic

[zhi chen via llvm-dev]

Hi Tim,

I updated the file a little bit. It seemed that the error was caused by
line 825 where it has a select instruction. The file can be successfully
compiled on trunk if I change the select instruction to add. Any idea? or I
should report a bug.

BTW, the error info is:
llc:
/home/zhi/tools/llvm_trunk/source/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp:3069:
llvm::SDValue llvm::SelectionDAG::getNode(unsigned int, llvm::SDLoc,
llvm::EVT, llvm::SDValue): Assertion `Operand.getValueType().bitsLT(VT) &&
"Invalid sext node, dst < src!"' failed.

Best,
Zhi

On Wed, Jan 20, 2016 at 6:22 PM, Tim Northover <t.p.northover at gmail.com>
wrote:

> On 20 January 2016 at 15:46, zhi chen <zchenhn at gmail.com> wrote:
> > Is it also a bug or do I miss something for avx-512 comparison?
>
> It's almost certainly a bug in LLVM, though it's difficult to be sure
> with such a big .bc file. Your best bet is to reduce it down to the
> smallest .bc file you can and report a bug.
>
> Cheers.
>
> Tim.
>
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