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| author | uros <uros@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-09-01 14:26:28 +0000 |
|---|---|---|
| committer | uros <uros@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-09-01 14:26:28 +0000 |
| commit | 2a29bc01954e04bac1973efe68295d89e5a2ca78 (patch) | |
| tree | 0eab0625a3fd56f7d03f4a8eed4bd72c645aec56 /gcc/doc/tm.texi | |
| parent | f6142c78abd78e29ade9b1c1ab2db574814e9e1e (diff) | |
| download | gcc-2a29bc01954e04bac1973efe68295d89e5a2ca78.tar.gz | |
* target.def (legitimate_combined_insn): New target hook.
* doc/tm.texi.in (TARGET_LEGITIMATE_COMBINED_INSN): New hook.
* doc/tm.texi: Regenerated.
* combine.c (recog_for_combine): Call targetm.legitimate_combined_insn
to allow targets to reject combined insn.
* hooks.h (hook_bool_rtx_true): New.
* hooks.c (hook_bool_rtx_true): Ditto.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@190846 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/doc/tm.texi')
| -rw-r--r-- | gcc/doc/tm.texi | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi index 79e7fe875b1..a4dc7c1f5fc 100644 --- a/gcc/doc/tm.texi +++ b/gcc/doc/tm.texi @@ -10938,6 +10938,10 @@ By default, the RTL loop optimizer does not use a present doloop pattern for loops containing function calls or branch on table instructions. @end deftypefn +@deftypefn {Target Hook} bool TARGET_LEGITIMATE_COMBINED_INSN (rtx @var{insn}) +Take an instruction in @var{insn} and return @code{false} if the instruction is not appropriate as a combination of two or more instructions. The default is to accept all instructions. +@end deftypefn + @defmac MD_CAN_REDIRECT_BRANCH (@var{branch1}, @var{branch2}) Take a branch insn in @var{branch1} and another in @var{branch2}. |