diff options
Diffstat (limited to 'gcc/rtl.h')
| -rw-r--r-- | gcc/rtl.h | 18 |
1 files changed, 11 insertions, 7 deletions
@@ -497,10 +497,10 @@ enum reg_note flow, are represented by a 0 reg note kind. */ REG_DEP_ANTI, REG_DEP_OUTPUT, - /* REG_BR_PROB is attached to JUMP_INSNs and CALL_INSNs when the flag - -fbranch-probabilities is given. It has an integer value. For jumps, - it is the probability that this is a taken branch. For calls, it is - the probability that this call won't return. */ + /* REG_BR_PROB is attached to JUMP_INSNs and CALL_INSNs. + It has an integer value. For jumps, it is the probability that this is a + taken branch. For calls, it is the probability that this call won't + return. */ REG_BR_PROB, /* REG_EXEC_COUNT is attached to the first insn of each basic block, and @@ -516,8 +516,10 @@ enum reg_note where SETJMP_VIA_SAVE_AREA is true. */ REG_SAVE_AREA, - /* Attached to JUMP_INSNs only, it holds the branch prediction flags - computed by get_jump_flags() after dbr scheduling is complete. */ + /* REG_BR_PRED is attached to JUMP_INSNs and CALL_INSNSs. It contains + CONCAT of two integer value. First specifies the branch predictor + that added the note, second specifies the predicted hitrate of branch + in the same format as REG_BR_PROB note uses. */ REG_BR_PRED, /* Attached to insns that are RTX_FRAME_RELATED_P, but are too complex @@ -2020,7 +2022,9 @@ extern rtx stack_limit_rtx; /* In regrename.c */ extern void regrename_optimize PARAMS ((void)); -/* In condexec.c */ +/* In ifcvt.c */ extern void if_convert PARAMS ((int)); +/* In predict.c */ +extern void invert_br_probabilities PARAMS ((rtx)); #endif /* ! GCC_RTL_H */ |