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Hi Zack and others, I have followed your advise and attached the first rather "mechanical" patch of my series of patches. However, I did have to make a _small_ change to calls.c in order to let it use the new interface to FUNCTION_OK_FOR_SIBCALL: Index: calls.c =================================================================== RCS file: /cvsroot/gcc/gcc/gcc/calls.c,v retrieving revision 1.231.4.5 diff -u -p -r1.231.4.5 calls.c --- calls.c 20 Sep 2002 01:29:06 -0000 1.231.4.5 +++ calls.c 24 Sep 2002 04:07:43 -0000 @@ -37,7 +37,7 @@ Software Foundation, 59 Temple Place - S #include "target.h" #if !defined FUNCTION_OK_FOR_SIBCALL -#define FUNCTION_OK_FOR_SIBCALL(DECL) 1 +#define FUNCTION_OK_FOR_SIBCALL(DECL, EXP) 1 #endif /* Decide whether a function's arguments should be processed @@ -2453,7 +2453,7 @@ expand_call (exp, target, ignore) || fndecl == NULL_TREE || (flags & (ECF_RETURNS_TWICE | ECF_LONGJMP)) || TREE_THIS_VOLATILE (fndecl) - || !FUNCTION_OK_FOR_SIBCALL (fndecl) + || !FUNCTION_OK_FOR_SIBCALL (fndecl, exp) /* If this function requires more stack slots than the current function, we cannot change it into a sibling call. */ || args_size.constant > current_function_args_size > First make the mechanical changes necessary to add the 'exp' parameter > to FUNCTION_OK_FOR_SIBCALL, and update the documentation. Do not > change calls.c or any of the definitions at this stage. Attached is a rather large patch which adds the 'exp' to all the targets in the config/ directory. This alone, of course, does not offer the new functionality, but it extends the interfaces, compiles & doesn't break anything, and (hopefully) let's us continue with Step 2. > Please consider turning FUNCTION_OK_FOR_SIBCALL into a "target hook" > with this patch, too. Please, send me more information on this request, if it's important or relevant to you. Cheers, Andi. P.S. also look carefully at my documentation change, as I'm not a native English speaker. :-)
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