re PR middle-end/10109 (documentation of target macro LIBCALL_VALUE)

PR middle-end/10109
	* tm.texi (LIBCALL_VALUE): Update description.

From-SVN: r144586
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Steve Ellcey 2009-03-03 18:33:40 +00:00 committed by Steve Ellcey
parent 8b9d598f03
commit dc6729518a
2 changed files with 6 additions and 9 deletions

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@ -1,3 +1,8 @@
2009-03-03 Steve Ellcey <sje@cup.hp.com>
PR middle-end/10109
* tm.texi (LIBCALL_VALUE): Update description.
2009-03-03 Steve Ellcey <sje@cup.hp.com>
PR middle-end/34443

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@ -4304,20 +4304,12 @@ a new target instead.
@defmac LIBCALL_VALUE (@var{mode})
A C expression to create an RTX representing the place where a library
function returns a value of mode @var{mode}. If the precise function
being called is known, @var{func} is a tree node
(@code{FUNCTION_DECL}) for it; otherwise, @var{func} is a null
pointer. This makes it possible to use a different value-returning
convention for specific functions when all their calls are
known.
function returns a value of mode @var{mode}.
Note that ``library function'' in this context means a compiler
support routine, used to perform arithmetic, whose name is known
specially by the compiler and was not mentioned in the C code being
compiled.
The definition of @code{LIBRARY_VALUE} need not be concerned aggregate
data types, because none of the library functions returns such types.
@end defmac
@defmac FUNCTION_VALUE_REGNO_P (@var{regno})