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2010-07-15 Yao Qi <yao@codesourcery.com>
Merge from Sourcery G++ 4.4:
2010-02-25 Maxim Kuvyrkov <maxim@codesourcery.com>
gcc/
* tree.c (initializer_zerop): Handle STRING_CST.
2010-07-15 Sandra Loosemore <sandra@codesourcery.com>
Backport from mainline:
=== modified file 'gcc/tree.c'
--- old/gcc/tree.c 2010-04-01 15:18:07 +0000
+++ new/gcc/tree.c 2010-08-02 16:32:37 +0000
@@ -9335,6 +9335,19 @@
return true;
}
+ case STRING_CST:
+ {
+ int i;
+
+ /* We need to loop through all elements to handle cases like
+ "\0" and "\0foobar". */
+ for (i = 0; i < TREE_STRING_LENGTH (init); ++i)
+ if (TREE_STRING_POINTER (init)[i] != '\0')
+ return false;
+
+ return true;
+ }
+
default:
return false;
}
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