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authorpbrook <pbrook@138bc75d-0d04-0410-961f-82ee72b054a4>2006-03-29 15:21:13 +0000
committerpbrook <pbrook@138bc75d-0d04-0410-961f-82ee72b054a4>2006-03-29 15:21:13 +0000
commit5f458503731f4a23c7c674adebf7c4185e26579c (patch)
tree13c3108b931a9f5530ee972b04fc4361a6cff803 /gcc/target.h
parent3686849050cfe9e28fee36c7785f70ee9d4e491c (diff)
downloadgcc-5f458503731f4a23c7c674adebf7c4185e26579c.tar.gz
2006-03-29 Paul Brook <paul@codesourcery.com>
PR middle-end/23623 * targhooks.c (default_narrow_bitfield): New fuction. * targhooks.h (default_narrow_bitfield): add prototype. * target.h (gcc_target): Add narrow_volatile_bitfield. * target-def.h (TARGET_NARROW_VOLATILE_BITFIELD): Define. * stor-layout.c (get_best_mode): Use targetm.narrow_volatile_bitfield. * doc/tm.texi: Document TARGET_NARROW_VOLATILE_BITFIELDS. * config/arm/arm.c (TARGET_NARROW_VOLATILE_BITFIELD): Define. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@112493 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/target.h')
-rw-r--r--gcc/target.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/target.h b/gcc/target.h
index 1b768e4f49c..e9a5eca9255 100644
--- a/gcc/target.h
+++ b/gcc/target.h
@@ -418,6 +418,10 @@ struct gcc_target
/* Return true if anonymous bitfields affect structure alignment. */
bool (* align_anon_bitfield) (void);
+ /* Return true if volatile bitfields should use the narrowest type possible.
+ Return false if they should use the container type. */
+ bool (* narrow_volatile_bitfield) (void);
+
/* Set up target-specific built-in functions. */
void (* init_builtins) (void);