OpenE2K
/
gcc
2
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

tree-ssa-math-opts.c (convert_mult_to_widen): Check actual precision against gimple constraints. 

2012-03-07  Richard Guenther  <rguenther@suse.de>

	* tree-ssa-math-opts.c (convert_mult_to_widen): Check actual
	precision against gimple constraints.

From-SVN: r185026
This commit is contained in:
Richard Guenther 2012-03-07 09:24:40 +00:00 committed by Richard Biener
parent 0effc3f961
commit f409d239ae
2 changed files with 7 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
gcc/ChangeLog
View File

@ -1,3 +1,8 @@
2012-03-07 Richard Guenther <rguenther@suse.de>
* tree-ssa-math-opts.c (convert_mult_to_widen): Check actual
precision against gimple constraints.
2012-03-06 Richard Sandiford <rdsandiford@googlemail.com>
PR middle-end/52372

2
gcc/tree-ssa-math-opts.c
View File

@ -2158,6 +2158,8 @@ convert_mult_to_widen (gimple stmt, gimple_stmt_iterator *gsi)
/* Ensure that the inputs to the handler are in the correct precison
for the opcode. This will be the full mode size. */
actual_precision = GET_MODE_PRECISION (actual_mode);
if (2 * actual_precision > TYPE_PRECISION (type))
return false;
if (actual_precision != TYPE_PRECISION (type1)
|| from_unsigned1 != TYPE_UNSIGNED (type1))
{