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tree-ssa-ter.c (is_replaceable_p): Do not TER across location or block changes with -Og.

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2013-03-08  Richard Biener  <rguenther@suse.de>

	* tree-ssa-ter.c (is_replaceable_p): Do not TER across location
	or block changes with -Og.  Fix for location / block encoding
	changes and PHI arguments with locations.

From-SVN: r196539
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Richard Biener 2013-03-08 08:45:29 +00:00 committed by Richard Biener
parent c78f387a45
commit b7aa4e9afc
2 changed files with 17 additions and 11 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2013-03-08 Richard Biener <rguenther@suse.de>
* tree-ssa-ter.c (is_replaceable_p): Do not TER across location
or block changes with -Og. Fix for location / block encoding
changes and PHI arguments with locations.
2013-03-07 Steven Bosscher <steven@gcc.gnu.org>
* bitmap.c (struct bitmap_descriptor_d): Use unsigned HOST_WIDEST_INT

20
gcc/tree-ssa-ter.c
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@ -399,22 +399,22 @@ is_replaceable_p (gimple stmt, bool ter)
return false;
locus1 = gimple_location (stmt);
block1 = gimple_block (stmt);
block1 = LOCATION_BLOCK (locus1);
locus1 = LOCATION_LOCUS (locus1);
if (gimple_code (use_stmt) == GIMPLE_PHI)
{
locus2 = 0;
block2 = NULL_TREE;
}
locus2 = gimple_phi_arg_location (use_stmt, PHI_ARG_INDEX_FROM_USE (use_p));
else
{
locus2 = gimple_location (use_stmt);
block2 = gimple_block (use_stmt);
}
block2 = LOCATION_BLOCK (locus2);
locus2 = LOCATION_LOCUS (locus2);
if (!optimize
if ((!optimize || optimize_debug)
&& ter
&& ((locus1 && locus1 != locus2) || (block1 && block1 != block2)))
&& ((locus1 != UNKNOWN_LOCATION
&& locus1 != locus2)
|| (block1 != NULL_TREE
&& block1 != block2)))
return false;
/* Used in this block, but at the TOP of the block, not the end. */