diff options
| author | Jan Hubicka <jh@suse.cz> | 2008-12-18 14:49:47 +0100 |
|---|---|---|
| committer | Jan Hubicka <hubicka@gcc.gnu.org> | 2008-12-18 13:49:47 +0000 |
| commit | 20377b474e11ac86b9217ea54bdcbe15200da0c4 (patch) | |
| tree | c329bd49e22904b85730c8f4832ce3aa478c46bb /gcc/ira-costs.c | |
| parent | 877a0b76e1f1b0efde5b7e9fe8c88b62b8abdc83 (diff) | |
| download | gcc-20377b474e11ac86b9217ea54bdcbe15200da0c4.tar.gz | |
ira-cost.c (copy_cost): Lazilly initialize move_cost if needed.
* ira-cost.c (copy_cost): Lazilly initialize move_cost if needed.
Co-Authored-By: Kai Tietz <kai.tietz@onevision.com>
From-SVN: r142811
Diffstat (limited to 'gcc/ira-costs.c')
| -rw-r--r-- | gcc/ira-costs.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/gcc/ira-costs.c b/gcc/ira-costs.c index a2df9bde9ae..397affd4b1f 100644 --- a/gcc/ira-costs.c +++ b/gcc/ira-costs.c @@ -142,8 +142,12 @@ copy_cost (rtx x, enum machine_mode mode, enum reg_class rclass, bool to_p, ira_init_register_move_cost (mode); if (secondary_class != NO_REGS) - return (move_cost[mode][secondary_class][rclass] + sri.extra_cost - + copy_cost (x, mode, secondary_class, to_p, &sri)); + { + if (!move_cost[mode]) + init_move_cost (mode); + return (move_cost[mode][secondary_class][rclass] + sri.extra_cost + + copy_cost (x, mode, secondary_class, to_p, &sri)); + } /* For memory, use the memory move cost, for (hard) registers, use the cost to move between the register classes, and use 2 for @@ -151,8 +155,11 @@ copy_cost (rtx x, enum machine_mode mode, enum reg_class rclass, bool to_p, if (MEM_P (x) || rclass == NO_REGS) return sri.extra_cost + ira_memory_move_cost[mode][rclass][to_p != 0]; else if (REG_P (x)) - return - (sri.extra_cost + move_cost[mode][REGNO_REG_CLASS (REGNO (x))][rclass]); + { + if (!move_cost[mode]) + init_move_cost (mode); + return (sri.extra_cost + move_cost[mode][REGNO_REG_CLASS (REGNO (x))][rclass]); + } else /* If this is a constant, we may eventually want to call rtx_cost here. */ |