[llvm-commits] [llvm] r72248 - in /llvm/trunk: lib/VMCore/Verifier.cpp test/Assembler/2009-05-22-CC.ll test/Verifier/2009-05-22-CC.ll

Török Edwin edwintorok at gmail.com
Fri May 22 00:08:41 PDT 2009


On 2009-05-22 10:00, Duncan Sands wrote:
> Hi,
>
>   
>> Verify that calling conventions match function prototype.
>> This only rejects mismatches between target specific calling convention
>> and C/LLVM specific calling convention.
>> There are too many fastcc/C, coldcc/cc42 mismatches in the testsuite, these are
>> not reject by the verifier.
>>     
>
> I think this is bogus: the IR is well-formed and so should pass
> verification.  The verifier is not there to catch programmer
> mistakes.  Another sign that the check is bogus is that it
> distinguishes between direct and indirect calls.  Thus some IR
> with an indirect call can be passed as valid, but a correct
> optimization could turn it into a direct call, and all of a
> sudden it doesn't pass the verifier any more!
>
> If you want a "lint" pass to point out common mistakes people
> make when writing IR, I think that would be great please go ahead!
> But the verifier is IMHO something else.

Ok, I'll revert this.

Best regards,
--Edwin



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