diff options
Diffstat (limited to 'gcc/target.def')
| -rw-r--r-- | gcc/target.def | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/gcc/target.def b/gcc/target.def index c9fdfa7..bcdbc0e 100644 --- a/gcc/target.def +++ b/gcc/target.def @@ -5039,6 +5039,16 @@ DEFHOOK machine_mode, (enum insn_code icode), default_cstore_mode) +/* This target hook allows the backend to compute the register pressure + classes to use. */ +DEFHOOK +(compute_pressure_classes, + "A target hook which lets a backend compute the set of pressure classes to\ + be used by those optimization passes which take register pressure into\ + account, as opposed to letting IRA compute them. It returns the number of\ + register classes stored in the array @var{pressure_classes}.", + int, (enum reg_class *pressure_classes), NULL) + /* True if a structure, union or array with MODE containing FIELD should be accessed using BLKmode. */ DEFHOOK |