diff options
| author | vmakarov <vmakarov@138bc75d-0d04-0410-961f-82ee72b054a4> | 2014-12-17 21:25:18 +0000 |
|---|---|---|
| committer | vmakarov <vmakarov@138bc75d-0d04-0410-961f-82ee72b054a4> | 2014-12-17 21:25:18 +0000 |
| commit | d0d3f162611ea562d9844059b86d435b6692522b (patch) | |
| tree | 6bb070c307762898cfd11f8f02245b0e065ca865 /gcc/lra-constraints.c | |
| parent | 2d2297a0e2b14418e93f3d8a3a23094a3068b93a (diff) | |
| download | gcc-d0d3f162611ea562d9844059b86d435b6692522b.tar.gz | |
2014-12-17 Vladimir Makarov <vmakarov@redhat.com>
* lra-constrints.c (process_alt_operands): Remove non allocatable
hard regs when considering ira_prohibited_class_mode_regs.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@218835 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/lra-constraints.c')
| -rw-r--r-- | gcc/lra-constraints.c | 32 |
1 files changed, 19 insertions, 13 deletions
diff --git a/gcc/lra-constraints.c b/gcc/lra-constraints.c index a108b84c120..2526954b02a 100644 --- a/gcc/lra-constraints.c +++ b/gcc/lra-constraints.c @@ -2280,22 +2280,28 @@ process_alt_operands (int only_alternative) not hold the mode value. */ && ! HARD_REGNO_MODE_OK (ira_class_hard_regs [this_alternative][0], - GET_MODE (*curr_id->operand_loc[nop])) + GET_MODE (*curr_id->operand_loc[nop]))) + { + HARD_REG_SET temp; + + COPY_HARD_REG_SET (temp, this_alternative_set); + AND_COMPL_HARD_REG_SET (temp, lra_no_alloc_regs); /* The above condition is not enough as the first reg in ira_class_hard_regs can be not aligned for multi-words mode values. */ - && hard_reg_set_subset_p (this_alternative_set, - ira_prohibited_class_mode_regs - [this_alternative] - [GET_MODE (*curr_id->operand_loc[nop])])) - { - if (lra_dump_file != NULL) - fprintf - (lra_dump_file, - " alt=%d: reload pseudo for op %d " - " can not hold the mode value -- refuse\n", - nalt, nop); - goto fail; + if (hard_reg_set_subset_p (temp, + ira_prohibited_class_mode_regs + [this_alternative] + [GET_MODE (*curr_id->operand_loc[nop])])) + { + if (lra_dump_file != NULL) + fprintf + (lra_dump_file, + " alt=%d: reload pseudo for op %d " + " can not hold the mode value -- refuse\n", + nalt, nop); + goto fail; + } } /* Check strong discouragement of reload of non-constant |