diff options
Diffstat (limited to 'gcc/flow.c')
| -rw-r--r-- | gcc/flow.c | 14 |
1 files changed, 9 insertions, 5 deletions
@@ -1627,7 +1627,8 @@ split_edge (edge_in) bb->pred = edge_in; bb->succ = edge_out; bb->count = edge_in->count; - /* ??? Set bb->frequency. */ + bb->frequency = (edge_in->probability * edge_in->src->frequency + / REG_BR_PROB_BASE); edge_in->dest = bb; edge_in->flags &= ~EDGE_CRITICAL; @@ -4857,7 +4858,8 @@ mark_set_1 (pbi, code, reg, cond, insn, flags) register twice if it is modified, but that is correct. */ REG_N_SETS (i) += 1; REG_N_REFS (i) += 1; - REG_FREQ (i) += (optimize_size ? 1 : pbi->bb->loop_depth + 1); + REG_FREQ (i) += (optimize_size || !pbi->bb->frequency + ? 1 : pbi->bb->frequency); /* The insns where a reg is live are normally counted elsewhere, but we want the count to include the insn @@ -5524,7 +5526,8 @@ attempt_auto_inc (pbi, inc, insn, mem, incr, incr_reg) /* Count an extra reference to the reg. When a reg is incremented, spilling it is worse, so we want to make that less likely. */ - REG_FREQ (regno) += (optimize_size ? 1 : pbi->bb->loop_depth + 1); + REG_FREQ (regno) += (optimize_size || !phi->bb->frequency + ? 1 : pbi->bb->frequency); /* Count the increment as a setting of the register, even though it isn't a SET in rtl. */ @@ -5690,7 +5693,7 @@ mark_used_reg (pbi, reg, cond, insn) /* Count (weighted) number of uses of each reg. */ REG_FREQ (regno_first) - += (optimize_size ? 1 : pbi->bb->loop_depth + 1); + += (optimize_size || !pbi->bb->frequency ? 1 : pbi->bb->frequency); REG_N_REFS (regno_first)++; } } @@ -6112,7 +6115,8 @@ try_pre_increment_1 (pbi, insn) so we want to make that less likely. */ if (regno >= FIRST_PSEUDO_REGISTER) { - REG_FREQ (regno) += (optimize_size ? 1 : pbi->bb->loop_depth + 1); + REG_FREQ (regno) += (optimize_size || !phi->bb->frequency + ? 1 : pbi->bb->frequency); REG_N_SETS (regno)++; } |