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modulo-sched.c (schedule_reg_moves): Clear distance1_uses if it is newly allocated. 

2014-01-02  Felix Yang  <fei.yang0953@gmail.com>

	* modulo-sched.c (schedule_reg_moves): Clear distance1_uses if it
	is newly allocated.

From-SVN: r206366
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Felix Yang 2014-01-06 16:46:12 +00:00 committed by Jeff Law
parent 892c47451b
commit 33444996f0
2 changed files with 8 additions and 0 deletions
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gcc/ChangeLog
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@ -1,3 +1,8 @@
2014-01-02 Felix Yang <fei.yang0953@gmail.com>
* modulo-sched.c (schedule_reg_moves): Clear distance1_uses if it
is newly allocated.
2014-01-06 Richard Earnshaw <rearnsha@arm.com>
* aarch64.c (aarch64_rtx_costs): Fix cost calculation for MADD.

3
gcc/modulo-sched.c
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@ -766,6 +766,9 @@ schedule_reg_moves (partial_schedule_ptr ps)
distance1_uses = distances[1] ? sbitmap_alloc (g->num_nodes) : NULL;
if (distance1_uses)
bitmap_clear (distance1_uses);
/* Every use of the register defined by node may require a different
copy of this register, depending on the time the use is scheduled.
Record which uses require which move results. */