diff options
Diffstat (limited to 'gcc/target.def')
| -rw-r--r-- | gcc/target.def | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/gcc/target.def b/gcc/target.def index bdd76621a6b..57134cbc611 100644 --- a/gcc/target.def +++ b/gcc/target.def @@ -1638,6 +1638,15 @@ DEFHOOK bool, (enum machine_mode mode), hook_bool_mode_false) +/* Register number for a flags register. Only needs to be defined if the + target is constrainted to use post-reload comparison elimination. */ +DEFHOOKPOD +(flags_regnum, + "If the target has a dedicated flags register, and it needs to use the\ + post-reload comparison elimination pass, then this value should be set\ + appropriately.", + unsigned int, INVALID_REGNUM) + /* Compute a (partial) cost for rtx X. Return true if the complete cost has been computed, and false if subexpressions should be scanned. In either case, *TOTAL contains the cost result. */ |