diff options
Diffstat (limited to 'gcc/ira-color.c')
| -rw-r--r-- | gcc/ira-color.c | 27 |
1 files changed, 12 insertions, 15 deletions
diff --git a/gcc/ira-color.c b/gcc/ira-color.c index 1f4c96e9a89..28a6d40eb1d 100644 --- a/gcc/ira-color.c +++ b/gcc/ira-color.c @@ -1599,7 +1599,6 @@ check_hard_reg_p (ira_allocno_t a, int hard_regno, } return j == nregs; } -#ifndef HONOR_REG_ALLOC_ORDER /* Return number of registers needed to be saved and restored at function prologue/epilogue if we allocate HARD_REGNO to hold value @@ -1618,7 +1617,6 @@ calculate_saved_nregs (int hard_regno, enum machine_mode mode) nregs++; return nregs; } -#endif /* Choose a hard register for allocno A. If RETRY_P is TRUE, it means that the function called from function @@ -1653,11 +1651,9 @@ assign_hard_reg (ira_allocno_t a, bool retry_p) enum reg_class aclass; enum machine_mode mode; static int costs[FIRST_PSEUDO_REGISTER], full_costs[FIRST_PSEUDO_REGISTER]; -#ifndef HONOR_REG_ALLOC_ORDER int saved_nregs; enum reg_class rclass; int add_cost; -#endif #ifdef STACK_REGS bool no_stack_reg_p; #endif @@ -1823,19 +1819,20 @@ assign_hard_reg (ira_allocno_t a, bool retry_p) continue; cost = costs[i]; full_cost = full_costs[i]; -#ifndef HONOR_REG_ALLOC_ORDER - if ((saved_nregs = calculate_saved_nregs (hard_regno, mode)) != 0) - /* We need to save/restore the hard register in - epilogue/prologue. Therefore we increase the cost. */ + if (!HONOR_REG_ALLOC_ORDER) { - rclass = REGNO_REG_CLASS (hard_regno); - add_cost = ((ira_memory_move_cost[mode][rclass][0] - + ira_memory_move_cost[mode][rclass][1]) - * saved_nregs / hard_regno_nregs[hard_regno][mode] - 1); - cost += add_cost; - full_cost += add_cost; + if ((saved_nregs = calculate_saved_nregs (hard_regno, mode)) != 0) + /* We need to save/restore the hard register in + epilogue/prologue. Therefore we increase the cost. */ + { + rclass = REGNO_REG_CLASS (hard_regno); + add_cost = ((ira_memory_move_cost[mode][rclass][0] + + ira_memory_move_cost[mode][rclass][1]) + * saved_nregs / hard_regno_nregs[hard_regno][mode] - 1); + cost += add_cost; + full_cost += add_cost; + } } -#endif if (min_cost > cost) min_cost = cost; if (min_full_cost > full_cost) |