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| author | Vladimir Makarov <vmakarov@redhat.com> | 2018-12-06 18:41:46 +0000 |
|---|---|---|
| committer | Vladimir Makarov <vmakarov@gcc.gnu.org> | 2018-12-06 18:41:46 +0000 |
| commit | e384094ac2e3bf7bac69453fb0579fa8a7c35b3e (patch) | |
| tree | 2bce7236e1397dd1d66b05e14857892d6e6a6abe /gcc/ira-costs.c | |
| parent | 5da8ebe9c61f304107b1bcb5146e068093b72d0d (diff) | |
| download | gcc-e384094ac2e3bf7bac69453fb0579fa8a7c35b3e.zip gcc-e384094ac2e3bf7bac69453fb0579fa8a7c35b3e.tar.gz gcc-e384094ac2e3bf7bac69453fb0579fa8a7c35b3e.tar.bz2 | |
re PR target/88282 (ICE in df_install_refs at gcc/df-scan.c:2379)
2018-12-06 Vladimir Makarov <vmakarov@redhat.com>
PR target/88282
* ira.c (ira_init_register_move_cost): Use info from
hard_regno_mode_ok instead of contains_reg_of_mode.
* ira-costs.c (contains_reg_of_mode): Don't use cost from bigger
hard register class for some fixed hard registers.
From-SVN: r266862
Diffstat (limited to 'gcc/ira-costs.c')
| -rw-r--r-- | gcc/ira-costs.c | 19 |
1 files changed, 0 insertions, 19 deletions
diff --git a/gcc/ira-costs.c b/gcc/ira-costs.c index c3451f0..d0f097b 100644 --- a/gcc/ira-costs.c +++ b/gcc/ira-costs.c @@ -1323,14 +1323,6 @@ record_operand_costs (rtx_insn *insn, enum reg_class *pref) move_costs = ira_register_move_cost[mode]; hard_reg_class = REGNO_REG_CLASS (other_regno); bigger_hard_reg_class = ira_pressure_class_translate[hard_reg_class]; - if (bigger_hard_reg_class == NO_REGS - && (other_regno == STACK_POINTER_REGNUM -#ifdef STATIC_CHAIN_REGNUM - || other_regno == STATIC_CHAIN_REGNUM -#endif - || other_regno == FRAME_POINTER_REGNUM - || other_regno == HARD_FRAME_POINTER_REGNUM)) - bigger_hard_reg_class = GENERAL_REGS; /* Target code may return any cost for mode which does not fit the the hard reg class (e.g. DImode for AREG on i386). Check this and use a bigger class to get the @@ -1345,17 +1337,6 @@ record_operand_costs (rtx_insn *insn, enum reg_class *pref) cost = (i == 0 ? move_costs[hard_reg_class][rclass] : move_costs[rclass][hard_reg_class]); - /* Target code might define wrong big costs for smaller - reg classes or reg classes containing only fixed hard - regs. Try a bigger class. */ - if (bigger_hard_reg_class != hard_reg_class) - { - int cost2 = (i == 0 - ? move_costs[bigger_hard_reg_class][rclass] - : move_costs[rclass][bigger_hard_reg_class]); - if (cost2 < cost) - cost = cost2; - } op_costs[i]->cost[k] = cost * frequency; /* If we have assigned a class to this allocno in our |