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| author | David S. Miller <davem@tanya.rutgers.edu> | 1997-09-23 07:14:07 +0000 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 1997-09-23 01:14:07 -0600 |
| commit | c107334d5c3780a3c78067922b8b2a8caf7ea2b0 (patch) | |
| tree | bacbc60b12bc81575fde04ef6114280a5e5fbc54 /gcc/rtl.h | |
| parent | 5cd278f39919dc2c8ff16d5b74e096cf3cafba32 (diff) | |
| download | gcc-c107334d5c3780a3c78067922b8b2a8caf7ea2b0.zip gcc-c107334d5c3780a3c78067922b8b2a8caf7ea2b0.tar.gz gcc-c107334d5c3780a3c78067922b8b2a8caf7ea2b0.tar.bz2 | |
reorg.c (dbr_schedule): At end of this pass...
* reorg.c (dbr_schedule): At end of this pass, add REG_BR_PRED
note holding get_jump_flags() calculation to all JUMP_INSNs.
* rtl.h (enum reg_note): New note types REG_BR_PRED and REG_SAVE_AREA.
* rtl.c (reg_note_name): Add new note types.
From-SVN: r15670
Diffstat (limited to 'gcc/rtl.h')
| -rw-r--r-- | gcc/rtl.h | 10 |
1 files changed, 8 insertions, 2 deletions
@@ -307,7 +307,12 @@ typedef struct rtvec_def{ probability that this call won't return. REG_EXEC_COUNT is attached to the first insn of each basic block, and the first insn after each CALL_INSN. It indicates how many times this - block was executed. */ + block was executed. + REG_SAVE_AREA is used to optimize rtl generated by dynamic stack + allocations for targets where SETJMP_VIA_SAVE_AREA is true. + REG_BR_PRED is attached to JUMP_INSNs only, it holds the branch prediction + flags computed by get_jump_flags() after dbr scheduling is complete. */ + #define REG_NOTES(INSN) ((INSN)->fld[6].rtx) @@ -317,7 +322,8 @@ enum reg_note { REG_DEAD = 1, REG_INC = 2, REG_EQUIV = 3, REG_WAS_0 = 4, REG_NONNEG = 8, REG_NO_CONFLICT = 9, REG_UNUSED = 10, REG_CC_SETTER = 11, REG_CC_USER = 12, REG_LABEL = 13, REG_DEP_ANTI = 14, REG_DEP_OUTPUT = 15, REG_BR_PROB = 16, - REG_EXEC_COUNT = 17, REG_NOALIAS = 18 }; + REG_EXEC_COUNT = 17, REG_NOALIAS = 18, REG_SAVE_AREA = 19, + REG_BR_PRED = 20 }; /* The base value for branch probability notes. */ #define REG_BR_PROB_BASE 10000 |