re PR testsuite/52614 (Test failures in gcc.dg/vect: vectorizing unaligned access)

gcc/testsuite:

2012-04-05  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
	    Dominique D'Humieures  <dominiq@lps.ens.fr>

	PR testsuite/52614
	* gcc.dg/vect/vect.exp: Use -fno-common on all targets.
	* gcc.dg/vect/costmodel/ppc/ppc-costmodel-vect.exp: Likewise.


Co-Authored-By: Dominique d'Humieres <dominiq@lps.ens.fr>

From-SVN: r186163

gcc/testsuite/ChangeLog

+2012-04-05  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
+	    Dominique D'Humieures  <dominiq@lps.ens.fr>
+
+	PR testsuite/52614
+	* gcc.dg/vect/vect.exp: Use -fno-common on all targets.
+	* gcc.dg/vect/costmodel/ppc/ppc-costmodel-vect.exp: Likewise.
+
 2012-04-04  Jason Merrill  <jason@redhat.com>
 
 	PR c++/52845

gcc/testsuite/gcc.dg/vect/costmodel/ppc/ppc-costmodel-vect.exp

@@ -34,7 +34,7 @@ if ![is-effective-target powerpc_altivec_ok] {
 set DEFAULT_VECTCFLAGS ""
 
 # These flags are used for all targets.
-lappend DEFAULT_VECTCFLAGS "-O2" "-ftree-vectorize" "-fvect-cost-model"
+lappend DEFAULT_VECTCFLAGS "-O2" "-ftree-vectorize" "-fvect-cost-model" "-fno-common"
 
 # If the target system supports vector instructions, the default action
 # for a test is 'run', otherwise it's 'compile'.  Save current default.

gcc/testsuite/gcc.dg/vect/vect.exp

@@ -40,7 +40,7 @@ if ![check_vect_support_and_set_flags] {
 }
 
 # These flags are used for all targets.
-lappend DEFAULT_VECTCFLAGS "-ftree-vectorize" "-fno-vect-cost-model"
+lappend DEFAULT_VECTCFLAGS "-ftree-vectorize" "-fno-vect-cost-model" "-fno-common"
 
 # Initialize `dg'.
 dg-init