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re PR c/6643 (gcc fails in tree check for assignment to variable sized array)

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PR c/6643
	* emit-rtl.c (widen_memory_access): Only call compare_tree_int
	if DECL_SIZE_UNIT is INTEGER_CST.

From-SVN: r53748
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Jakub Jelinek 2002-05-22 23:06:16 +02:00 committed by Jakub Jelinek
parent 9f3dbd92d2
commit 45f797836b
2 changed files with 7 additions and 0 deletions
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gcc/ChangeLog
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@ -1,3 +1,9 @@
2002-05-22 Jakub Jelinek <jakub@redhat.com>
PR c/6643
* emit-rtl.c (widen_memory_access): Only call compare_tree_int
if DECL_SIZE_UNIT is INTEGER_CST.
2002-05-22 Richard Henderson <rth@redhat.com>
* flow.c (life_analysis): Delete broken reg_label check.

1
gcc/emit-rtl.c
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@ -2163,6 +2163,7 @@ widen_memory_access (memref, mode, offset)
/* Similarly for the decl. */
else if (DECL_P (expr)
&& DECL_SIZE_UNIT (expr)
&& TREE_CODE (DECL_SIZE_UNIT (expr)) == INTEGER_CST
&& compare_tree_int (DECL_SIZE_UNIT (expr), size) >= 0
&& (! memoffset || INTVAL (memoffset) >= 0))
break;