diff options
Diffstat (limited to 'gcc/lra-int.h')
| -rw-r--r-- | gcc/lra-int.h | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/gcc/lra-int.h b/gcc/lra-int.h index d737816146f..03839187cf6 100644 --- a/gcc/lra-int.h +++ b/gcc/lra-int.h @@ -202,15 +202,20 @@ struct lra_static_insn_data const struct operand_alternative *operand_alternative; }; +/* Negative insn alternative numbers used for special cases. */ +#define LRA_UNKNOWN_ALT -1 +#define LRA_NON_CLOBBERED_ALT -2 + /* LRA internal info about an insn (LRA internal insn representation). */ struct lra_insn_recog_data { /* The insn code. */ int icode; - /* The alternative should be used for the insn, -1 if invalid, or we - should try to use any alternative, or the insn is a debug - insn. */ + /* The alternative should be used for the insn, LRA_UNKNOWN_ALT if + unknown, or we should assume any alternative, or the insn is a + debug insn. LRA_NON_CLOBBERED_ALT means ignoring any earlier + clobbers for the insn. */ int used_insn_alternative; /* SP offset before the insn relative to one at the func start. */ poly_int64 sp_offset; @@ -309,7 +314,7 @@ extern void lra_update_dups (lra_insn_recog_data_t, signed char *); extern void lra_process_new_insns (rtx_insn *, rtx_insn *, rtx_insn *, const char *); -extern bool lra_substitute_pseudo (rtx *, int, rtx, bool); +extern bool lra_substitute_pseudo (rtx *, int, rtx, bool, bool); extern bool lra_substitute_pseudo_within_insn (rtx_insn *, int, rtx, bool); extern lra_insn_recog_data_t lra_set_insn_recog_data (rtx_insn *); |