[Tinycc-devel] Arguments eval order

[Philippe Ribet]

Hello every tcc lovers,

tcc and gcc have different behaviour for arguments evaluation order (for 
function or procedure call).
gcc evaluates arguments in reverse order (from the last one to the first 
one)
tcc evaluates arguments in source code order (from the first one to the 
last one)
C language does not specify evaluation order, optimiser are free to change.

I can see three situations:
- we keep current tcc behaviour unchaged. This is allowed, but may break 
some -bad- code running fine with gcc with very hard to find bugs.
- we change to gcc behaviour to increase gcc compatibility.
- we change to gcc behaviour and add a flag for "in order" arguments 
evaluation. This option may help to find buggy code who depends on 
evaluation order.

Any comments?

--
Philippe Ribet



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