[llvm-commits] [RFC] Patch 1/3 for the native code compiler of Erlang

[Yiannis Tsiouris]

On 05/14/2012 06:26 PM, Jakob Stoklund Olesen wrote:
>
> On May 13, 2012, at 3:31 PM, Yiannis Tsiouris wrote:
>
>> I reproduced the problem by just adding a " CCIfType<[i8, i16, i32],
>> CCPromoteToType<i64>>," line in RetCC_X86Common in a vanilla LLVM tree
>> and trying to compile a simple function that uses i32 vregs without a
>> cc. Is this normal or a bug? I could try to fix it if this is the case.
>
> This looks like something worth tracking down.
>
> /jakob
>
I attach an even smaller testcase that breaks the Expanding Post-RA
Pseudo Instrs pass. The test uses a calling convention that promotes
types both in CC and RetCC (CallingConvention::HiPE). I also attach the
LOG of trying to compile it with llc and -debug (i.e. llc <
promote-fail-in-retcc.ll -debug).

I'm trying to track this down so any hint is more than welcome! :-)

Yiannis

-- 
Yiannis Tsiouris
Ph.D. student,
Software Engineering Laboratory,
National Technical University of Athens
WWW: http://www.softlab.ntua.gr/~gtsiour

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