libstdc++: Reduce <random> test iterations for simulators

Some of these tests take several minutes on a simulator like cris-elf,
so we can conditionally run fewer iterations. The testDiscreteDist
helper already supports custom sizes so we just need to make use of that
when { target simulator } matches.

The relevant code is sufficiently tested on other targets, so we're not
losing anything by only running a small number of iterators for sims.

libstdc++-v3/ChangeLog:

	* testsuite/26_numerics/random/bernoulli_distribution/operators/values.cc:
	Run fewer iterations for simulator targets.
	* testsuite/26_numerics/random/binomial_distribution/operators/values.cc:
	Likewise.
	* testsuite/26_numerics/random/discrete_distribution/operators/values.cc:
	Likewise.
	* testsuite/26_numerics/random/geometric_distribution/operators/values.cc:
	Likewise.
	* testsuite/26_numerics/random/negative_binomial_distribution/operators/values.cc:
	Likewise.
	* testsuite/26_numerics/random/poisson_distribution/operators/values.cc:
	Likewise.
	* testsuite/26_numerics/random/uniform_int_distribution/operators/values.cc:
	Likewise.

(cherry picked from commit e3b8b4f781)

libstdc++-v3/testsuite/26_numerics/random/bernoulli_distribution/operators/values.cc

@@ -24,6 +24,14 @@
 #include <functional>
 #include <testsuite_random.h>
 
+// { dg-additional-options "-DSIMULATOR_TEST" { target simulator } }
+
+#ifdef SIMULATOR_TEST
+# define ARGS 100, 1000
+#else
+# define ARGS
+#endif
+
 void test01()
 {
   using namespace __gnu_test;
@@ -32,15 +40,15 @@ void test01()
 
   std::bernoulli_distribution bd1(0.25);
   auto bbd1 = std::bind(bd1, eng);
-  testDiscreteDist(bbd1, [](int n) { return bernoulli_pdf(n, 0.25); } );
+  testDiscreteDist<ARGS>(bbd1, [](int n) { return bernoulli_pdf(n, 0.25); } );
 
   std::bernoulli_distribution bd2(0.5);
   auto bbd2 = std::bind(bd2, eng);
-  testDiscreteDist(bbd2, [](int n) { return bernoulli_pdf(n, 0.5); } );
+  testDiscreteDist<ARGS>(bbd2, [](int n) { return bernoulli_pdf(n, 0.5); } );
 
   std::bernoulli_distribution bd3(0.75);
   auto bbd3 = std::bind(bd3, eng);
-  testDiscreteDist(bbd3, [](int n) { return bernoulli_pdf(n, 0.75); } );
+  testDiscreteDist<ARGS>(bbd3, [](int n) { return bernoulli_pdf(n, 0.75); } );
 }
 
 int main()

libstdc++-v3/testsuite/26_numerics/random/binomial_distribution/operators/values.cc

@@ -25,6 +25,14 @@
 #include <functional>
 #include <testsuite_random.h>
 
+// { dg-additional-options "-DSIMULATOR_TEST" { target simulator } }
+
+#ifdef SIMULATOR_TEST
+# define ARGS 100, 1000
+#else
+# define ARGS
+#endif
+
 void test01()
 {
   using namespace __gnu_test;
@@ -33,9 +41,9 @@ void test01()
 
   std::binomial_distribution<> bd1(5, 0.3);
   auto bbd1 = std::bind(bd1, eng);
-  testDiscreteDist(bbd1, [](int n) { return binomial_pdf(n, 5, 0.3); } );
+  testDiscreteDist<ARGS>(bbd1, [](int n) { return binomial_pdf(n, 5, 0.3); } );
 
-  // These tests take a relatively long time on soft-float simulated
+  // These tests take a relatively long time on soft-float simulated targets.
   // targets, so please don't add new tests here, instead add a new file.
 }
 

libstdc++-v3/testsuite/26_numerics/random/discrete_distribution/operators/values.cc

@@ -24,6 +24,14 @@
 #include <functional>
 #include <testsuite_random.h>
 
+// { dg-additional-options "-DSIMULATOR_TEST" { target simulator } }
+
+#ifdef SIMULATOR_TEST
+# define ARGS 100, 1000
+#else
+# define ARGS
+#endif
+
 void test01()
 {
   using namespace __gnu_test;

libstdc++-v3/testsuite/26_numerics/random/geometric_distribution/operators/values.cc

@@ -24,6 +24,14 @@
 #include <functional>
 #include <testsuite_random.h>
 
+// { dg-additional-options "-DSIMULATOR_TEST" { target simulator } }
+
+#ifdef SIMULATOR_TEST
+# define ARGS 100, 1000
+#else
+# define ARGS
+#endif
+
 void test01()
 {
   using namespace __gnu_test;
@@ -32,16 +40,16 @@ void test01()
 
   std::geometric_distribution<> gd1(0.5);
   auto bgd1 = std::bind(gd1, eng);
-  testDiscreteDist(bgd1, [](int n) { return geometric_pdf(n, 0.5); } );
+  testDiscreteDist<ARGS>(bgd1, [](int n) { return geometric_pdf(n, 0.5); } );
 
   std::geometric_distribution<> gd2(0.75);
   auto bgd2 = std::bind(gd2, eng);
-  testDiscreteDist(bgd2, [](int n) { return geometric_pdf(n, 0.75); } );
+  testDiscreteDist<ARGS>(bgd2, [](int n) { return geometric_pdf(n, 0.75); } );
 
   // libstdc++/48114
   std::geometric_distribution<> gd3(0.25);
   auto bgd3 = std::bind(gd3, eng);
-  testDiscreteDist(bgd3, [](int n) { return geometric_pdf(n, 0.25); } );
+  testDiscreteDist<ARGS>(bgd3, [](int n) { return geometric_pdf(n, 0.25); } );
 }
 
 int main()

libstdc++-v3/testsuite/26_numerics/random/negative_binomial_distribution/operators/values.cc

@@ -26,6 +26,14 @@
 #include <functional>
 #include <testsuite_random.h>
 
+// { dg-additional-options "-DSIMULATOR_TEST" { target simulator } }
+
+#ifdef SIMULATOR_TEST
+# define ARGS 100, 1000
+#else
+# define ARGS
+#endif
+
 void test01()
 {
   using namespace __gnu_test;
@@ -34,18 +42,18 @@ void test01()
 
   std::negative_binomial_distribution<> nbd1(5, 0.3);
   auto bnbd1 = std::bind(nbd1, eng);
-  testDiscreteDist(bnbd1, [](int n)
-		   { return negative_binomial_pdf(n, 5, 0.3); } );
+  testDiscreteDist<ARGS>(bnbd1, [](int n)
+			 { return negative_binomial_pdf(n, 5, 0.3); } );
 
   std::negative_binomial_distribution<> nbd2(55, 0.3);
   auto bnbd2 = std::bind(nbd2, eng);
-  testDiscreteDist(bnbd2, [](int n)
-		   { return negative_binomial_pdf(n, 55, 0.3); } );
+  testDiscreteDist<ARGS>(bnbd2, [](int n)
+			 { return negative_binomial_pdf(n, 55, 0.3); } );
 
   std::negative_binomial_distribution<> nbd3(10, 0.75);
   auto bnbd3 = std::bind(nbd3, eng);
-  testDiscreteDist(bnbd3, [](int n)
-		   { return negative_binomial_pdf(n, 10, 0.75); } );
+  testDiscreteDist<ARGS>(bnbd3, [](int n)
+			 { return negative_binomial_pdf(n, 10, 0.75); } );
 }
 
 int main()

libstdc++-v3/testsuite/26_numerics/random/poisson_distribution/operators/values.cc

@@ -1,4 +1,3 @@
-// { dg-options "-DSIMULATOR_TEST" { target simulator } }
 // { dg-do run { target c++11 } }
 // { dg-require-cstdint "" }
 // { dg-require-cmath "" }
@@ -26,6 +25,14 @@
 #include <functional>
 #include <testsuite_random.h>
 
+// { dg-additional-options "-DSIMULATOR_TEST" { target simulator } }
+
+#ifdef SIMULATOR_TEST
+# define ARGS 100, 1000
+#else
+# define ARGS
+#endif
+
 void test01()
 {
   using namespace __gnu_test;
@@ -34,15 +41,15 @@ void test01()
 
   std::poisson_distribution<> pd1(3.0);
   auto bpd1 = std::bind(pd1, eng);
-  testDiscreteDist(bpd1, [](int n) { return poisson_pdf(n, 3.0); } );
+  testDiscreteDist<ARGS>(bpd1, [](int n) { return poisson_pdf(n, 3.0); } );
 
   std::poisson_distribution<> pd2(15.0);
   auto bpd2 = std::bind(pd2, eng);
-  testDiscreteDist(bpd2, [](int n) { return poisson_pdf(n, 15.0); } );
+  testDiscreteDist<ARGS>(bpd2, [](int n) { return poisson_pdf(n, 15.0); } );
 
   std::poisson_distribution<> pd3(30.0);
   auto bpd3 = std::bind(pd3, eng);
-  testDiscreteDist(bpd3, [](int n) { return poisson_pdf(n, 30.0); } );
+  testDiscreteDist<ARGS>(bpd3, [](int n) { return poisson_pdf(n, 30.0); } );
 
   // This can take extremely long on simulators, timing out the test.
 #ifndef SIMULATOR_TEST

libstdc++-v3/testsuite/26_numerics/random/uniform_int_distribution/operators/values.cc

@@ -24,6 +24,14 @@
 #include <functional>
 #include <testsuite_random.h>
 
+// { dg-additional-options "-DSIMULATOR_TEST" { target simulator } }
+
+#ifdef SIMULATOR_TEST
+# define ARGS 100, 1000
+#else
+# define ARGS
+#endif
+
 void test01()
 {
   using namespace __gnu_test;
@@ -32,15 +40,15 @@ void test01()
 
   std::uniform_int_distribution<> uid1(0, 2);
   auto buid1 = std::bind(uid1, eng);
-  testDiscreteDist(buid1, [](int n) { return uniform_int_pdf(n, 0, 2); } );
+  testDiscreteDist<ARGS>(buid1, [](int n) { return uniform_int_pdf(n, 0, 2); } );
 
   std::uniform_int_distribution<> uid2(3, 7);
   auto buid2 = std::bind(uid2, eng);
-  testDiscreteDist(buid2, [](int n) { return uniform_int_pdf(n, 3, 7); } );
+  testDiscreteDist<ARGS>(buid2, [](int n) { return uniform_int_pdf(n, 3, 7); } );
 
   std::uniform_int_distribution<> uid3(1, 20);
   auto buid3 = std::bind(uid3, eng);
-  testDiscreteDist(buid3, [](int n) { return uniform_int_pdf(n, 1, 20); } );
+  testDiscreteDist<ARGS>(buid3, [](int n) { return uniform_int_pdf(n, 1, 20); } );
 }
 
 int main()