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tree-ssa-sink.c (nearest_common_dominator_of_uses): Consider all immediate uses in PHI nodes.

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* tree-ssa-sink.c (nearest_common_dominator_of_uses): Consider
	all immediate uses in PHI nodes.

From-SVN: r97788
This commit is contained in:
Kazu Hirata 2005-04-07 16:31:07 +00:00 • committed by Kazu Hirata
parent 53b42091b9
commit ab7983139d
2 changed files with 12 additions and 9 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2005-04-07 Kazu Hirata <kazu@cs.umass.edu>
* tree-ssa-sink.c (nearest_common_dominator_of_uses): Consider
all immediate uses in PHI nodes.
2005-04-07 Richard Earnshaw <richard.earnshaw@arm.com>
* arm.c (arm_const_double_inline_cost): Handle any constant by

16
gcc/tree-ssa-sink.c
View file

@ -241,17 +241,15 @@ nearest_common_dominator_of_uses (tree stmt)
if (TREE_CODE (usestmt) == PHI_NODE)
{
int idx = PHI_ARG_INDEX_FROM_USE (use_p);
if (PHI_ARG_DEF (usestmt, idx) == var)
useblock = PHI_ARG_EDGE (usestmt, idx)->src;
/* Short circuit. Nothing dominates the entry block. */
if (useblock == ENTRY_BLOCK_PTR)
{
useblock = PHI_ARG_EDGE (usestmt, idx)->src;
/* Short circuit. Nothing dominates the entry block. */
if (useblock == ENTRY_BLOCK_PTR)
{
BITMAP_FREE (blocks);
return NULL;
}
bitmap_set_bit (blocks, useblock->index);
BITMAP_FREE (blocks);
return NULL;
}
bitmap_set_bit (blocks, useblock->index);
}
else
{