After the previous patch, we can remove the separate 'I'-'P' and 'G'/'H'
cases without increasing compile time. I didn't bother adding the kind of
fast-path for 'G'/'H' that I did for 'I'-'P' since it should be much rarer.
This removes the last use of CONST_DOUBLE_OK_FOR_CONSTRAINT_P, so I deleted
the code that defines it and added it to the poison list. The only remaining
old-style macro is CONST_INT_OK_FOR_CONSTRAINT_P, which is used by the s390
backend. If this series is OK I'll follow up with a patch to remove that
usage and poison CONST_INT_OK_FOR_CONSTRAINT_P too.
Richard
gcc/
* system.h (CONST_DOUBLE_OK_FOR_CONSTRAINT_P): Poison.
* genpreds.c (have_const_dbl_constraints): Delete.
(add_constraint): Don't set it.
(write_tm_preds_h): Don't call CONST_DOUBLE_OK_FOR_CONSTRAINT_P.
* ira-costs.c (record_reg_classes): Handle CONST_INT and CONST_DOUBLE
constraints using the lookup_constraint logic.
* ira-lives.c (single_reg_class): Likewise.
* ira.c (ira_setup_alts): Likewise.
* lra-constraints.c (process_alt_operands): Likewise.
* recog.c (asm_operand_ok, constrain_operands): Likewise.
* reload.c (find_reloads): Likewise.