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[PATCH,4.5,testsuite] backport vect-109.c fix for non-vect_hw_misalign targets (PR44325)


PR testsuite/44325 is about the gcc.dg/vect/vect-109.c FAIL on numerous
targets since the PR44284 fix in late May.  This test case now also fails
with 4.5 on those targets since the PR44284 backport a few days ago.

Recently the test case was fixed on trunk as part of r161797, a vectorizer
realignment improvement patch.  This patch backports just the vect-109.c fix,
which suffices to prevent the regression.

Tested on {powerpc64,sparc64}-linux where it eliminated the new FAIL, and
on i686-linux where it caused no change (since i686 is a vect_hw_misalign
target).

Ok for 4.5? (I don't have svn write access.)

gcc/testsuite/

2010-07-10  Mikael Pettersson  <mikpe@it.uu.se>

	PR testsuite/44325

	Backport from mainline
	2010-07-04  Ira Rosen  <irar@il.ibm.com>
		    Revital Eres  <eres@il.ibm.com>

	* gcc.dg/vect/vect-109.c: Expect vectorization only on targets that	
	support misaligned stores.

--- gcc-4.5-20100708/gcc/testsuite/gcc.dg/vect/vect-109.c.~1~	2010-07-09 11:07:19.000000000 +0200
+++ gcc-4.5-20100708/gcc/testsuite/gcc.dg/vect/vect-109.c	2010-07-10 22:32:58.000000000 +0200
@@ -72,7 +72,7 @@ int main (void)
   return 0;
 }
 
-/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 2 "vect" } } */
+/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 2 "vect" { target vect_hw_misalign } } } */
 /* { dg-final { scan-tree-dump-times "not vectorized: unsupported unaligned store" 2 "vect" { xfail vect_hw_misalign } } } */
 /* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 10 "vect" { target vect_hw_misalign } } } */
 /* { dg-final { cleanup-tree-dump "vect" } } */


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