[PUSHED] Fix pr118947-1.c and pr78408-3.c on targets where 32 bytes memcpy uses a vector

[Andrew Pinski]

The problem here is on targets where a 32byte memcpy will use an integral 
(vector) type
to do the copy and the code will be optimized a different way than expected. 
This changes
the testcase instead to use a size of 1025 to make sure there is no target that 
will use an
integral (vector) type for the memcpy and be optimized via the method that was 
just added.

Pushed as obvious after a test run.

gcc/testsuite/ChangeLog:

        * gcc.dg/pr118947-1.c: Use 1025 as the size of the buf.
        * gcc.dg/pr78408-3.c: Likewise.

Signed-off-by: Andrew Pinski <quic_apin...@quicinc.com>
---
 gcc/testsuite/gcc.dg/pr118947-1.c | 4 ++--
 gcc/testsuite/gcc.dg/pr78408-3.c  | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/gcc/testsuite/gcc.dg/pr118947-1.c 
b/gcc/testsuite/gcc.dg/pr118947-1.c
index 70b7f800065..8733e8d7f5c 100644
--- a/gcc/testsuite/gcc.dg/pr118947-1.c
+++ b/gcc/testsuite/gcc.dg/pr118947-1.c
@@ -6,10 +6,10 @@
 void* aaa();
 void* bbb()
 {
-    char buf[32] = {};
+    char buf[1025] = {};
     /*  Tha call to aaa should not matter and clobber buf. */
     void* ret = aaa();
-    __builtin_memcpy(ret, buf, 32);
+    __builtin_memcpy(ret, buf, sizeof(buf));
     return ret;
 }
 
diff --git a/gcc/testsuite/gcc.dg/pr78408-3.c b/gcc/testsuite/gcc.dg/pr78408-3.c
index 3de90d02392..5ea545868ad 100644
--- a/gcc/testsuite/gcc.dg/pr78408-3.c
+++ b/gcc/testsuite/gcc.dg/pr78408-3.c
@@ -7,8 +7,8 @@ void* aaa();
 void* bbb()
 {
     void* ret = aaa();
-    char buf[32] = {};
-    __builtin_memcpy(ret, buf, 32);
+    char buf[1025] = {};
+    __builtin_memcpy(ret, buf, sizeof(buf));
     return ret;
 }
 
-- 
2.43.0