benchtests: Move iterator declaration into loop header

This is a minor style change to move the definition of I to its usage
scope instead of at the top of the function.  This is consistent with
glibc style guidelines and more importantly it was getting in the way
of my testing.

	* benchtests/bench-memcpy-walk.c (do_test): Move declaration
	of I into loop header.
	* benchtests/bench-memmove-walk.c (do_test): Likewise.

ChangeLog

@@ -1,4 +1,11 @@
-2018-05-07  Alexandre Oliva <[email protected]>
+2018-05-07  Siddhesh Poyarekar  <[email protected]>
+
+	* benchtests/bench-memcpy-walk.c (test_main): Move declaration
+	of I into loop header.
+	* benchtests/bench-memmove-walk.c
+	(test_main): Likewise.
+
+2018-05-07  Alexandre Oliva  <[email protected]>
 
 	Revert:
 	2018-04-30  Raymond Nicholson <[email protected]>

benchtests/bench-memcpy-walk.c

@@ -83,7 +83,6 @@ int
 test_main (void)
 {
   json_ctx_t json_ctx;
-  size_t i;
 
   test_init ();
 
@@ -102,7 +101,7 @@ test_main (void)
   json_array_end (&json_ctx);
 
   json_array_begin (&json_ctx, "results");
-  for (i = START_SIZE; i <= MIN_PAGE_SIZE; i <<= 1)
+  for (size_t i = START_SIZE; i <= MIN_PAGE_SIZE; i <<= 1)
     {
       /* Test length alignments from 0-16 bytes.  */
       for (int j = 0; j < 8; j++)

benchtests/bench-memmove-walk.c

@@ -86,7 +86,6 @@ int
 test_main (void)
 {
   json_ctx_t json_ctx;
-  size_t i;
 
   test_init ();
 
@@ -106,7 +105,7 @@ test_main (void)
 
   json_array_begin (&json_ctx, "results");
   /* Non-overlapping buffers.  */
-  for (i = START_SIZE; i <= MIN_PAGE_SIZE; i <<= 1)
+  for (size_t i = START_SIZE; i <= MIN_PAGE_SIZE; i <<= 1)
     {
       /* Test length alignments from 0-16 bytes.  */
       for (int j = 0; j < 8; j++)
@@ -117,7 +116,7 @@ test_main (void)
     }
 
   /* Overlapping buffers.  */
-  for (i = START_SIZE; i <= MIN_PAGE_SIZE; i <<= 1)
+  for (size_t i = START_SIZE; i <= MIN_PAGE_SIZE; i <<= 1)
     {
       /* Test length alignments from 0-16 bytes.  */
       for (int j = 0; j < 8; j++)