git
/
gcc
mirror of git://gcc.gnu.org/git/gcc.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

lra-constrints.c (process_alt_operands): Remove non allocatable hard regs when considering ira_prohibited_class_mode_regs. 

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.

From-SVN: r218835
This commit is contained in:
Vladimir Makarov 2014-12-17 21:25:18 +00:00 committed by Vladimir Makarov
parent f4e2df8970
commit cdfc4dcf48
2 changed files with 24 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
gcc/ChangeLog
View File

@ -1,3 +1,8 @@
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.
2014-12-17 Jan Hubicka <hubicka@ucw.cz>
* sreal.h (sreal::normalize): Implement inline.

10
gcc/lra-constraints.c
View File

@ -2280,11 +2280,16 @@ 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,
if (hard_reg_set_subset_p (temp,
ira_prohibited_class_mode_regs
[this_alternative]
[GET_MODE (*curr_id->operand_loc[nop])]))
@ -2297,6 +2302,7 @@ process_alt_operands (int only_alternative)
nalt, nop);
goto fail;
}
}
/* Check strong discouragement of reload of non-constant
into class THIS_ALTERNATIVE. */