procyberian/gcc
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

re PR tree-optimization/30590 (tree-nrv optimization clobbers return variable)

Browse source 
2007-03-13  Seongbae Park <seongbae.park@gmail.com>

	PR tree-optimization/30590
	* tree-nrv.c (tree_nrv): Check for the partial update of the
	return value.

From-SVN: r122909
This commit is contained in:
Seongbae Park 2007-03-14 05:48:35 +00:00 • committed by Seongbae Park
parent 0503394970
commit e31657e812
2 changed files with 14 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
gcc/ChangeLog
View file

@ -1,3 +1,9 @@
2007-03-13 Seongbae Park <seongbae.park@gmail.com>
PR tree-optimization/30590
* tree-nrv.c (tree_nrv): Check for the partial update of the
return value.
2007-03-13 Alexandre Oliva <aoliva@redhat.com>
* flags.h (flag_random_seed): Remove declaration, in favor of...

8
gcc/tree-nrv.c
View file

@ -163,6 +163,14 @@ tree_nrv (void)
result_type))
return 0;
}
else if (TREE_CODE (stmt) == GIMPLE_MODIFY_STMT)
{
tree addr = get_base_address (GIMPLE_STMT_OPERAND (stmt, 0));
/* If there's any MODIFY of component of RESULT,
then bail out. */
if (addr && addr == result)
return 0;
}
}
}