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ira-color.c (ira_fast_allocation): Permit global allocno allocation.

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2008-09-04  Vladimir Makarov  <vmakarov@redhat.com>

	* ira-color.c (ira_fast_allocation): Permit global allocno
	allocation.

From-SVN: r140052
This commit is contained in:
Vladimir Makarov 2008-09-06 00:39:58 +00:00 committed by Vladimir Makarov
parent 67a43c6e43
commit 6b8d967660
2 changed files with 7 additions and 6 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2008-09-04 Vladimir Makarov <vmakarov@redhat.com>
* ira-color.c (ira_fast_allocation): Permit global allocno
allocation.
2008-09-05 Trevor Smigiel <Trevor_Smigiel@playstation.sony.com>
Improved branch hints, safe hints, and scheduling.

8
gcc/ira-color.c
View File

@ -2985,17 +2985,13 @@ ira_fast_allocation (void)
for (i = 0; i < num; i++)
{
a = sorted_allocnos[i];
ALLOCNO_ASSIGNED_P (a) = true;
ALLOCNO_HARD_REGNO (a) = -1;
/* Live info about hard registers are absent when OPTIMIZE==0.
So try to assign hard-registers only to local allocnos. */
if (!optimize && REG_BASIC_BLOCK (ALLOCNO_REGNO (a)) == REG_BLOCK_GLOBAL)
continue;
COPY_HARD_REG_SET (conflict_hard_regs, ALLOCNO_CONFLICT_HARD_REGS (a));
for (r = ALLOCNO_LIVE_RANGES (a); r != NULL; r = r->next)
for (j = r->start; j <= r->finish; j++)
IOR_HARD_REG_SET (conflict_hard_regs, used_hard_regs[j]);
cover_class = ALLOCNO_COVER_CLASS (a);
ALLOCNO_ASSIGNED_P (a) = true;
ALLOCNO_HARD_REGNO (a) = -1;
if (hard_reg_set_subset_p (reg_class_contents[cover_class],
conflict_hard_regs))
continue;