r157825 - in /trunk/gcc: ChangeLog config/s390/...

[krebbel@gcc.gnu.org]

Author: krebbel
Date: Tue Mar 30 13:53:10 2010
New Revision: 157825

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=157825
Log:
2010-03-30  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

	* config/s390/s390.c (s390_emit_prologue): Omit issuing a dynamic
	stack check if the mask would be zero.

2010-03-30  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

	* gcc.target/s390/stackcheck1.c: New testcase.


Added:
    trunk/gcc/testsuite/gcc.target/s390/stackcheck1.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/s390/s390.c
    trunk/gcc/testsuite/ChangeLog