mirror/gcc
2
0
Fork 0
mirror of git://gcc.gnu.org/git/gcc.git synced 2025-04-05 10:50:51 +08:00
Code Issues Packages Projects Releases Wiki Activity

re PR tree-optimization/30904 (VRP does not track values of shifts and/or bitfields?)

Browse Source 
2007-03-09  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/30904
	PR middle-end/31058
	* tree-vrp.c (extract_range_from_binary_expr): Handle RSHIFT_EXPR
	the same way as *_DIV_EXPR.

	* gcc.dg/pr30904.c: Remove xfail.

From-SVN: r122748
This commit is contained in:
Richard Guenther 2007-03-09 12:29:09 +00:00 committed by Richard Biener
parent fb0a24601d
commit 6569e71643
4 changed files with 17 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
gcc/ChangeLog
View File

@ -1,3 +1,10 @@
2007-03-09 Richard Guenther <rguenther@suse.de>
PR tree-optimization/30904
PR middle-end/31058
* tree-vrp.c (extract_range_from_binary_expr): Handle RSHIFT_EXPR
the same way as *_DIV_EXPR.
2007-03-09 Alexandre Oliva <aoliva@redhat.com>
* recog.c (decode_asm_operands): No mixed declarations and code.

6
gcc/testsuite/ChangeLog
View File

@ -1,3 +1,9 @@
2007-03-09 Richard Guenther <rguenther@suse.de>
PR tree-optimization/30904
PR middle-end/31058
* gcc.dg/pr30904.c: Remove xfail.
2007-03-08 Andrew Pinski <andrew_pinski@playstation.sony.com>
PR C/31072

2
gcc/testsuite/gcc.dg/pr30904.c
View File

@ -14,5 +14,5 @@ int main (void)
}
/* { dg-final { scan-tree-dump-times "link_error" 0 "optimized" { xfail *-*-* } } } */
/* { dg-final { scan-tree-dump-times "link_error" 0 "optimized" } } */
/* { dg-final { cleanup-tree-dump "optimized" } } */

4
gcc/tree-vrp.c
View File

@ -1596,6 +1596,7 @@ extract_range_from_binary_expr (value_range_t *vr, tree expr)
&& code != CEIL_DIV_EXPR
&& code != EXACT_DIV_EXPR
&& code != ROUND_DIV_EXPR
&& code != RSHIFT_EXPR
&& code != MIN_EXPR
&& code != MAX_EXPR
&& code != BIT_AND_EXPR
@ -1763,7 +1764,8 @@ extract_range_from_binary_expr (value_range_t *vr, tree expr)
|| code == FLOOR_DIV_EXPR
|| code == CEIL_DIV_EXPR
|| code == EXACT_DIV_EXPR
|| code == ROUND_DIV_EXPR)
|| code == ROUND_DIV_EXPR
|| code == RSHIFT_EXPR)
{
tree val[4];
size_t i;