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-rwxr-xr-xscripts/bench.pl25
1 files changed, 21 insertions, 4 deletions
diff --git a/scripts/bench.pl b/scripts/bench.pl
index 6ad93fa..90441e1 100755
--- a/scripts/bench.pl
+++ b/scripts/bench.pl
@@ -93,6 +93,13 @@ LINE:while (<INPUTS>) {
my $bench_func = "#define CALL_BENCH_FUNC(v, i) $func (";
+# Output variables. These include the return value as well as any pointers
+# that may get passed into the function, denoted by the <> around the type.
+my $outvars = "";
+
+if ($ret ne "void") {
+ $outvars = "static volatile $ret ret;\n";
+}
# Print the definitions and macros.
foreach $incl (@include_headers) {
@@ -124,8 +131,18 @@ if (@args > 0) {
$bench_func = "$bench_func,";
}
- $arg_struct = "$arg_struct volatile $arg arg$num;";
- $bench_func = "$bench_func variants[v].in[i].arg$num";
+ $_ = $arg;
+ if (/<(.*)\*>/) {
+ # Output variables. These have to be pointers, so dereference once by
+ # dropping one *.
+ $outvars = $outvars . "static $1 out$num;\n";
+ $bench_func = "$bench_func &out$num";
+ }
+ else {
+ $arg_struct = "$arg_struct volatile $arg arg$num;";
+ $bench_func = "$bench_func variants[v].in[i].arg$num";
+ }
+
$num = $num + 1;
}
@@ -172,12 +189,12 @@ else {
print "#define VARIANT(v) FUNCNAME \"()\"\n"
}
-
+# Print the output variable definitions.
+print "$outvars\n";
# In some cases not storing a return value seems to result in the function call
# being optimized out.
if ($ret ne "void") {
- print "static volatile $ret ret;\n";
$getret = "ret = ";
}