[PATCH v1 1/3] perf bench: Avoid NDEBUG warning

[Ian Rogers]

With NDEBUG set the asserts are compiled out. This yields
"unused-but-set-variable" variables. Move these variables behind
NDEBUG to avoid the warning.

Signed-off-by: Ian Rogers <irogers@xxxxxxxxxx>
---
 tools/perf/bench/find-bit-bench.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/tools/perf/bench/find-bit-bench.c b/tools/perf/bench/find-bit-bench.c
index d103c3136983..7e25b0e413f6 100644
--- a/tools/perf/bench/find-bit-bench.c
+++ b/tools/perf/bench/find-bit-bench.c
@@ -61,7 +61,6 @@ static int do_for_each_set_bit(unsigned int num_bits)
 	double time_average, time_stddev;
 	unsigned int bit, i, j;
 	unsigned int set_bits, skip;
-	unsigned int old;
 
 	init_stats(&fb_time_stats);
 	init_stats(&tb_time_stats);
@@ -73,7 +72,10 @@ static int do_for_each_set_bit(unsigned int num_bits)
 			__set_bit(i, to_test);
 
 		for (i = 0; i < outer_iterations; i++) {
-			old = accumulator;
+#ifndef NDEBUG
+			unsigned int old = accumulator;
+#endif
+
 			gettimeofday(&start, NULL);
 			for (j = 0; j < inner_iterations; j++) {
 				for_each_set_bit(bit, to_test, num_bits)
@@ -85,7 +87,9 @@ static int do_for_each_set_bit(unsigned int num_bits)
 			runtime_us = diff.tv_sec * USEC_PER_SEC + diff.tv_usec;
 			update_stats(&fb_time_stats, runtime_us);
 
+#ifndef NDEBUG
 			old = accumulator;
+#endif
 			gettimeofday(&start, NULL);
 			for (j = 0; j < inner_iterations; j++) {
 				for (bit = 0; bit < num_bits; bit++) {
-- 
2.40.0.348.gf938b09366-goog