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More comments about DECL_BUILT_IN and DECL_IS_BUILTIN 

gcc/

	* tree.h (DECL_BUILT_IN, DECL_IS_BUILTIN): Add more comments
	explaining their differences.

From-SVN: r202251
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Dodji Seketeli 2013-09-04 12:54:09 +00:00 committed by Dodji Seketeli
parent 0a04869e7f
commit 24ba81955d
2 changed files with 15 additions and 1 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2013-09-04 Dodji Seketeli <dodji@redhat.com>
* tree.h (DECL_BUILT_IN, DECL_IS_BUILTIN): Add more comments
explaining their differences.
2013-09-04 Sandeep Kumar Singh<Sandeep.Singh2@kpitcummins.com>
* config/rx/rx.h: Add option -mcpu for target variants RX100 and RX200.

11
gcc/tree.h
View File

@ -1838,6 +1838,9 @@ extern enum machine_mode vector_type_mode (const_tree);
#define DECL_SOURCE_FILE(NODE) LOCATION_FILE (DECL_SOURCE_LOCATION (NODE))
#define DECL_SOURCE_LINE(NODE) LOCATION_LINE (DECL_SOURCE_LOCATION (NODE))
#define DECL_SOURCE_COLUMN(NODE) LOCATION_COLUMN (DECL_SOURCE_LOCATION (NODE))
/* This accessor returns TRUE if the decl it operates on was created
by a front-end or back-end rather than by user code. In this case
builtin-ness is indicated by source location. */
#define DECL_IS_BUILTIN(DECL) \
(LOCATION_LOCUS (DECL_SOURCE_LOCATION (DECL)) <= BUILTINS_LOCATION)
@ -2486,7 +2489,13 @@ extern vec<tree, va_gc> **decl_debug_args_insert (tree);
#define DECL_STRUCT_FUNCTION(NODE) \
(FUNCTION_DECL_CHECK (NODE)->function_decl.f)
/* In a FUNCTION_DECL, nonzero means a built in function. */
/* In a FUNCTION_DECL, nonzero means a built in function of a
standard library or more generally a built in function that is
recognized by optimizers and expanders.
Note that it is different from the DECL_IS_BUILTIN accessor. For
instance, user declarated prototypes of C library functions are not
DECL_IS_BUILTIN but may be DECL_BUILT_IN. */
#define DECL_BUILT_IN(NODE) (DECL_BUILT_IN_CLASS (NODE) != NOT_BUILT_IN)
/* For a builtin function, identify which part of the compiler defined it. */