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| author | Anatoly Sokolov <aesok@post.ru> | 2009-04-25 08:34:27 +0400 |
|---|---|---|
| committer | Anatoly Sokolov <aesok@gcc.gnu.org> | 2009-04-25 08:34:27 +0400 |
| commit | e6ff3083a0fc0bbf35ad323784671732c7ca58cc (patch) | |
| tree | bd2fa4d98f26b6a7e12e507b3e3a46601d1ed5c3 /gcc/target.h | |
| parent | 9e3eba15997699303768c9c7b6eee72f8a9ca294 (diff) | |
| download | gcc-e6ff3083a0fc0bbf35ad323784671732c7ca58cc.zip gcc-e6ff3083a0fc0bbf35ad323784671732c7ca58cc.tar.gz gcc-e6ff3083a0fc0bbf35ad323784671732c7ca58cc.tar.bz2 | |
target.h (struct gcc_target): Add case_values_threshold field.
* target.h (struct gcc_target): Add case_values_threshold field.
* target-def.h (TARGET_CASE_VALUES_THRESHOLD): New.
(TARGET_INITIALIZER): Use TARGET_CASE_VALUES_THRESHOLD.
* targhooks.c (default_case_values_threshold): New function.
* targhooks.h (default_case_values_threshold): Declare function.
* stmt.c (expand_case): Use case_values_threshold target hook.
* expr.h (case_values_threshold): Remove declartation.
* expr.c (case_values_threshold): Remove function.
* doc/tm.texi (CASE_VALUES_THRESHOLD): Revise documentation.
* config/avr/avr.h (CASE_VALUES_THRESHOLD): Remove macro.
* config/avr/avr.c (TARGET_CASE_VALUES_THRESHOLD): Define macro.
(avr_case_values_threshold): Declare as static.
* config/avr/avr-protos.h (avr_case_values_threshold): Remove.
* config/avr/mn10300.h (CASE_VALUES_THRESHOLD): Remove macro.
* config/avr/mn10300.c (TARGET_CASE_VALUES_THRESHOLD): Define macro.
(mn10300_case_values_threshold): New function.
From-SVN: r146756
Diffstat (limited to 'gcc/target.h')
| -rw-r--r-- | gcc/target.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/target.h b/gcc/target.h index f3d3361..ed08a09 100644 --- a/gcc/target.h +++ b/gcc/target.h @@ -921,6 +921,10 @@ struct gcc_target in peephole2. */ bool (* hard_regno_scratch_ok) (unsigned int regno); + /* Return the smallest number of different values for which it is best to + use a jump-table instead of a tree of conditional branches. */ + unsigned int (* case_values_threshold) (void); + /* Functions specific to the C family of frontends. */ struct c { /* Return machine mode for non-standard suffix |