Make more use of combined_fn

[Jeff Law]

On 11/07/2015 05:44 AM, Richard Sandiford wrote:
> This patch generalises fold-const.[hc] routines to use combined_fn
> instead of built_in_function.  It also updates gimple-ssa-backprop,c
> since the update is simple and it avoids churn on the call to
> negate_mathfn_p.
>
> Tested on x86_64-linux-gnu, aarch64-linux-gnu and arm-linux-gnueabi.
> OK to install?
>
> Thanks,
> Richard
>
> [I've attached a -b form of the patch too since it's easier to read.]
Thanks for that.  I was thinking that would have made one of the later 
ones easier to read, but it was small enough not to really matter.


>
>
> gcc/
> 	* fold-const.h (negate_mathfn_p): Take a combined_fn rather
> 	than a built_in_function.
> 	(tree_call_nonnegative_warnv_p): Take a combined_fn rather than
> 	a function decl.
> 	(integer_valued_real_call_p): Likewise.
> 	* fold-const.c: Include case-cfn-macros.h
> 	(negate_mathfn_p): Take a combined_fn rather than a built_in_function.
> 	(negate_expr_p): Update accordingly.
> 	(tree_call_nonnegative_warnv_p): Take a combined_fn rather than
> 	a function decl.
> 	(integer_valued_real_call_p): Likewise.
> 	(tree_invalid_nonnegative_warnv_p): Update accordingly.
> 	(integer_valued_real_p): Likewise.
> 	* gimple-fold.c (gimple_call_nonnegative_warnv_p): Update call
> 	to tree_call_nonnegative_warnv_p.
> 	(gimple_call_integer_valued_real_p): Likewise
> 	integer_valued_real_call_p.
> 	* gimple-ssa-backprop.c: Include case-cfn-macros.h.
> 	(backprop::process_builtin_call_use): Extend to combined_fn.
> 	(strip_sign_op_1): Likewise.
> 	(backprop::process_use): Don't check for built-in calls here.
> 	(backprop::execute): Likewise.
> 	(backprop::optimize_builtin_call): Update call to negate_mathfn_p.
>
OK
jeff