Fix vector testcases for amdgcn.

2019-12-17  Andrew Stubbs  <ams@codesourcery.com>

	gcc/testsuite/
	* gcc.dg/vect/pr65947-8.c: Change pass conditions for amdgcn.
	* gcc.dg/vect/vect-multitypes-11.c: Ensure that main isn't vectorized.
	* gcc.dg/vect/vect-multitypes-12.c: Likewise.

From-SVN: r279465

gcc/testsuite/ChangeLog

+2019-12-17  Andrew Stubbs  <ams@codesourcery.com>
+
+	* gcc.dg/vect/pr65947-8.c: Change pass conditions for amdgcn.
+	* gcc.dg/vect/vect-multitypes-11.c: Ensure that main isn't vectorized.
+	* gcc.dg/vect/vect-multitypes-12.c: Likewise.
+
 2019-12-17  Christophe Lyon  <christophe.lyon@linaro.org>
 
 	* gcc.target/arm/pr45701-1.c: Adjust for -mpure-code.

gcc/testsuite/gcc.dg/vect/pr65947-8.c

@@ -7,7 +7,7 @@ extern void abort (void) __attribute__ ((noreturn));
 #define N 27
 
 /* Condition reduction with multiple types in the comparison.  Will fail to
-   vectorize.  */
+   vectorize on architectures requiring matching vector sizes.  */
 
 int
 condition_reduction (char *a, int min_v)
@@ -41,5 +41,6 @@ main (void)
   return 0;
 }
 
-/* { dg-final { scan-tree-dump-not "LOOP VECTORIZED" "vect" } } */
-/* { dg-final { scan-tree-dump "multiple types in double reduction or condition reduction" "vect" } } */
+/* { dg-final { scan-tree-dump-not "LOOP VECTORIZED" "vect" { target { ! amdgcn*-*-* } } } } */
+/* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" { target amdgcn*-*-* } } } */
+/* { dg-final { scan-tree-dump "multiple types in double reduction or condition reduction" "vect" { target { ! amdgcn*-*-* } } } } */

gcc/testsuite/gcc.dg/vect/vect-multitypes-11.c

@@ -17,6 +17,7 @@ foo (int len, int *z) {
 }
 
 
+__attribute__ ((optimize(("no-tree-vectorize"))))
 int main (void)
 {
   short i;

gcc/testsuite/gcc.dg/vect/vect-multitypes-12.c

@@ -16,7 +16,7 @@ foo (int len, int *z) {
   }
 }
 
-
+__attribute__ ((optimize("no-tree-vectorize")))
 int main (void)
 {
   char i;