Re: [Tinycc-devel] tcc grammar problems

2014-07-28 Thread Thomas Preud'homme
Le dimanche 13 juillet 2014, 22:12:39 jiang a écrit :
 Hello everyone!
 
 (s-a = (s-b = (s-c = n + 4)));
 
 
 gcc  msvc:
 -- 30 / 30 / 126 // Because the return value is left
 
 
 tcc
 -- 254 / 30 / 126 // Because the return is the right value

Since it works for the last two values I don't think it's that. It simply 
looks like tcc compute n + 4 (254) and then tries to store it in each field 
independently. It's a folding issue. Tcc records 254 in a CValue associated 
with the SValue for n + 4. The problem is how this is propagated (folded) to 
the three field access.

 
 Shall tcc assignment modify what? Same with gccmsvc.

Yes, gcc and msvc are definitely right here.

Best regards,

Thomas

signature.asc
Description: This is a digitally signed message part.
___
Tinycc-devel mailing list
Tinycc-devel@nongnu.org
https://lists.nongnu.org/mailman/listinfo/tinycc-devel


[Tinycc-devel] 回复: tcc grammar problems

2014-07-28 Thread jiang
I am sorry, I do not have expressed good I mean. I want you sure, is tcc 
correct or gcc msvc correctly. If the gcc msvc correct, I want to fix it.

Best regards
Jiang

Thomas Preud'homme robo...@celest.fr编写:

Le dimanche 13 juillet 2014, 22:12:39 jiang a écrit :
 Hello everyone!
 
 (s-a = (s-b = (s-c = n + 4)));
 
 
 gcc  msvc:
 -- 30 / 30 / 126 // Because the return value is left
 
 
 tcc
 -- 254 / 30 / 126 // Because the return is the right value

Since it works for the last two values I don't think it's that. It simply 
looks like tcc compute n + 4 (254) and then tries to store it in each field 
independently. It's a folding issue. Tcc records 254 in a CValue associated 
with the SValue for n + 4. The problem is how this is propagated (folded) to 
the three field access.

 
 Shall tcc assignment modify what? Same with gccmsvc.

Yes, gcc and msvc are definitely right here.

Best regards,

Thomas
___
Tinycc-devel mailing list
Tinycc-devel@nongnu.org
https://lists.nongnu.org/mailman/listinfo/tinycc-devel