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perf bench: Avoid NDEBUG warning 

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@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sean Christopherson <seanjc@google.com>
Link: https://lore.kernel.org/r/20230330183827.1412303-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Ian Rogers 2023-03-30 11:38:25 -07:00 committed by Arnaldo Carvalho de Melo
parent 0372358a09
commit d1babea9c3
1 changed files with 6 additions and 2 deletions
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8
tools/perf/bench/find-bit-bench.c
View File

@ -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++) {