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PR tree-optimization/43833
authorjiez <jiez@138bc75d-0d04-0410-961f-82ee72b054a4>
Mon, 26 Apr 2010 10:59:34 +0000 (10:59 +0000)
committerMasaki Muranaka <monaka@monami-software.com>
Sun, 23 May 2010 04:49:32 +0000 (13:49 +0900)
* tree-vrp.c (range_int_cst_p): New.
(range_int_cst_singleton_p): New.
(extract_range_from_binary_expr): Optimize BIT_AND_EXPR case
when both operands are constants.  Use range_int_cst_p in
BIT_IOR_EXPR case.

testsuite/
PR tree-optimization/43833
gcc.dg/Warray-bounds-8.c: New test case.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@158727 138bc75d-0d04-0410-961f-82ee72b054a4

gcc/ChangeLog
gcc/testsuite/ChangeLog

index 9d7d669..77d6355 100644 (file)
@@ -1,3 +1,12 @@
+2010-04-26  Jie Zhang  <jie@codesourcery.com>
+
+       PR tree-optimization/43833
+       * tree-vrp.c (range_int_cst_p): New.
+       (range_int_cst_singleton_p): New.
+       (extract_range_from_binary_expr): Optimize BIT_AND_EXPR case
+       when both operands are constants.  Use range_int_cst_p in
+       BIT_IOR_EXPR case.
+
 2010-04-26  Jan Hubicka  <jh@suse.cz>
 
        * cgraphunit.c (cgraph_copy_node_for_versioning): Fix profile updating.
index 0524b7c..9f470ca 100644 (file)
@@ -1,3 +1,8 @@
+2010-04-26  Jie Zhang  <jie@codesourcery.com>
+
+       PR tree-optimization/43833
+       gcc.dg/Warray-bounds-8.c: New test case.
+
 2010-04-26  Richard Guenther  <rguenther@suse.de>
 
        PR lto/43080