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re PR tree-optimization/31911 (Short function (md4) takes very long to compile)

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2007-05-13  Daniel Berlin  <dberlin@dberlin.org>

	Fix PR tree-optimization/31911
	* tree-ssa-pre.c (phi_translate): Make sure to cache results even
	if they didn't change the expression.

From-SVN: r124657
This commit is contained in:
Daniel Berlin 2007-05-13 21:52:10 +00:00 committed by Daniel Berlin
parent 3cb960c703
commit 4076455d9b
2 changed files with 10 additions and 4 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2007-05-13 Daniel Berlin <dberlin@dberlin.org>
Fix PR tree-optimization/31911
* tree-ssa-pre.c (phi_translate): Make sure to cache results even
if they didn't change the expression.
2007-05-13 Zdenek Dvorak <dvorakz@suse.cz>
* tree-scalar-evolution.c (resolve_mixers): Exported.

8
gcc/tree-ssa-pre.c
View File

@ -1075,8 +1075,8 @@ phi_translate (tree expr, bitmap_set_t set1, bitmap_set_t set2,
newexpr->base.ann = NULL;
vn_lookup_or_add_with_vuses (newexpr, tvuses);
expr = newexpr;
phi_trans_add (oldexpr, newexpr, pred, tvuses);
}
phi_trans_add (oldexpr, expr, pred, tvuses);
}
}
return expr;
@ -1188,8 +1188,8 @@ phi_translate (tree expr, bitmap_set_t set1, bitmap_set_t set2,
vn_lookup_or_add_with_vuses (newexpr, newvuses);
}
expr = newexpr;
phi_trans_add (oldexpr, newexpr, pred, newvuses);
}
phi_trans_add (oldexpr, expr, pred, newvuses);
}
return expr;
break;
@ -1233,8 +1233,8 @@ phi_translate (tree expr, bitmap_set_t set1, bitmap_set_t set2,
vn_lookup_or_add (newexpr, NULL);
}
expr = newexpr;
phi_trans_add (oldexpr, newexpr, pred, NULL);
}
phi_trans_add (oldexpr, expr, pred, NULL);
}
return expr;
@ -1266,8 +1266,8 @@ phi_translate (tree expr, bitmap_set_t set1, bitmap_set_t set2,
vn_lookup_or_add (newexpr, NULL);
}
expr = newexpr;
phi_trans_add (oldexpr, newexpr, pred, NULL);
}
phi_trans_add (oldexpr, expr, pred, NULL);
}
return expr;