[cfe-dev] Test suite additions request

[Joerg Sonnenberger]

On Sun, Sep 04, 2011 at 11:38:20PM +0100, Philip Ashmore wrote:
> Next I noticed that clang(++) doesn't support __attribute__((ms_abi)), 
> gcc's way of saying Pascal calling
> convention, in which the callee pops the stack - I think my code is 
> smaller and faster with it.

In general, the impact is relatively small. clang will accumulate stack
space used for arguments to a degree. You can use the fastcall attribute
for a very similar effect, if you really care.

> Next I noticed that clang doesn't understand "extern inline int fn() 
> __attribute((always_inline));",
> , followed by "extern inline int fn() { return 1; }" which means
> "never put this function in an object file, always expand".

extern inline is an old GCCism. Look up the C99 inline syntax for
getting the same effect.

Joerg