[nvptx] Update comment in 'libgomp.oacc-c-c++-common/parallel-dims.c'

Small fix-up for r267889 (commit 2b9d9e393766d2fa6e2dd5f361d0db14872cf261)
"[nvptx] Enable large vectors":

> 	* testsuite/libgomp.oacc-c-c++-common/parallel-dims.c: Expect vector
> 	length 2097152 to be reduced to 1024 instead of 32.

	libgomp/
	* testsuite/libgomp.oacc-c-c++-common/parallel-dims.c
	<acc_device_nvidia>: Update comment.

diff --git a/libgomp/testsuite/libgomp.oacc-c-c++-common/parallel-dims.c b/libgomp/testsuite/libgomp.oacc-c-c++-common/parallel-dims.c
index ef4917a..ef3dfda 100644 (file)
--- a/libgomp/testsuite/libgomp.oacc-c-c++-common/parallel-dims.c
+++ b/libgomp/testsuite/libgomp.oacc-c-c++-common/parallel-dims.c
@@ -385,7 +385,7 @@ int main ()
        }
       else if (acc_on_device (acc_device_nvidia))
        {
-         /* The GCC nvptx back end enforces vector_length (32).  */
+         /* The GCC nvptx back end reduces to vector_length (1024).  */
          vectors_actual = 1024;
        }
       else if (acc_on_device (acc_device_radeon))