Add m-esr52 at 52.6.0

1 files changed, 263 insertions, 0 deletions

diff --git a/memory/jemalloc/src/test/unit/prng.c b/memory/jemalloc/src/test/unit/prng.c
new file mode 100644
index 000000000..80c9d733f
--- /dev/null
+++ b/memory/jemalloc/src/test/unit/prng.c
@@ -0,0 +1,263 @@
+#include "test/jemalloc_test.h"
+
+static void
+test_prng_lg_range_u32(bool atomic)
+{
+	uint32_t sa, sb, ra, rb;
+	unsigned lg_range;
+
+	sa = 42;
+	ra = prng_lg_range_u32(&sa, 32, atomic);
+	sa = 42;
+	rb = prng_lg_range_u32(&sa, 32, atomic);
+	assert_u32_eq(ra, rb,
+	    "Repeated generation should produce repeated results");
+
+	sb = 42;
+	rb = prng_lg_range_u32(&sb, 32, atomic);
+	assert_u32_eq(ra, rb,
+	    "Equivalent generation should produce equivalent results");
+
+	sa = 42;
+	ra = prng_lg_range_u32(&sa, 32, atomic);
+	rb = prng_lg_range_u32(&sa, 32, atomic);
+	assert_u32_ne(ra, rb,
+	    "Full-width results must not immediately repeat");
+
+	sa = 42;
+	ra = prng_lg_range_u32(&sa, 32, atomic);
+	for (lg_range = 31; lg_range > 0; lg_range--) {
+		sb = 42;
+		rb = prng_lg_range_u32(&sb, lg_range, atomic);
+		assert_u32_eq((rb & (UINT32_C(0xffffffff) << lg_range)),
+		    0, "High order bits should be 0, lg_range=%u", lg_range);
+		assert_u32_eq(rb, (ra >> (32 - lg_range)),
+		    "Expected high order bits of full-width result, "
+		    "lg_range=%u", lg_range);
+	}
+}
+
+static void
+test_prng_lg_range_u64(void)
+{
+	uint64_t sa, sb, ra, rb;
+	unsigned lg_range;
+
+	sa = 42;
+	ra = prng_lg_range_u64(&sa, 64);
+	sa = 42;
+	rb = prng_lg_range_u64(&sa, 64);
+	assert_u64_eq(ra, rb,
+	    "Repeated generation should produce repeated results");
+
+	sb = 42;
+	rb = prng_lg_range_u64(&sb, 64);
+	assert_u64_eq(ra, rb,
+	    "Equivalent generation should produce equivalent results");
+
+	sa = 42;
+	ra = prng_lg_range_u64(&sa, 64);
+	rb = prng_lg_range_u64(&sa, 64);
+	assert_u64_ne(ra, rb,
+	    "Full-width results must not immediately repeat");
+
+	sa = 42;
+	ra = prng_lg_range_u64(&sa, 64);
+	for (lg_range = 63; lg_range > 0; lg_range--) {
+		sb = 42;
+		rb = prng_lg_range_u64(&sb, lg_range);
+		assert_u64_eq((rb & (UINT64_C(0xffffffffffffffff) << lg_range)),
+		    0, "High order bits should be 0, lg_range=%u", lg_range);
+		assert_u64_eq(rb, (ra >> (64 - lg_range)),
+		    "Expected high order bits of full-width result, "
+		    "lg_range=%u", lg_range);
+	}
+}
+
+static void
+test_prng_lg_range_zu(bool atomic)
+{
+	size_t sa, sb, ra, rb;
+	unsigned lg_range;
+
+	sa = 42;
+	ra = prng_lg_range_zu(&sa, ZU(1) << (3 + LG_SIZEOF_PTR), atomic);
+	sa = 42;
+	rb = prng_lg_range_zu(&sa, ZU(1) << (3 + LG_SIZEOF_PTR), atomic);
+	assert_zu_eq(ra, rb,
+	    "Repeated generation should produce repeated results");
+
+	sb = 42;
+	rb = prng_lg_range_zu(&sb, ZU(1) << (3 + LG_SIZEOF_PTR), atomic);
+	assert_zu_eq(ra, rb,
+	    "Equivalent generation should produce equivalent results");
+
+	sa = 42;
+	ra = prng_lg_range_zu(&sa, ZU(1) << (3 + LG_SIZEOF_PTR), atomic);
+	rb = prng_lg_range_zu(&sa, ZU(1) << (3 + LG_SIZEOF_PTR), atomic);
+	assert_zu_ne(ra, rb,
+	    "Full-width results must not immediately repeat");
+
+	sa = 42;
+	ra = prng_lg_range_zu(&sa, ZU(1) << (3 + LG_SIZEOF_PTR), atomic);
+	for (lg_range = (ZU(1) << (3 + LG_SIZEOF_PTR)) - 1; lg_range > 0;
+	    lg_range--) {
+		sb = 42;
+		rb = prng_lg_range_zu(&sb, lg_range, atomic);
+		assert_zu_eq((rb & (SIZE_T_MAX << lg_range)),
+		    0, "High order bits should be 0, lg_range=%u", lg_range);
+		assert_zu_eq(rb, (ra >> ((ZU(1) << (3 + LG_SIZEOF_PTR)) -
+		    lg_range)), "Expected high order bits of full-width "
+		    "result, lg_range=%u", lg_range);
+	}
+}
+
+TEST_BEGIN(test_prng_lg_range_u32_nonatomic)
+{
+
+	test_prng_lg_range_u32(false);
+}
+TEST_END
+
+TEST_BEGIN(test_prng_lg_range_u32_atomic)
+{
+
+	test_prng_lg_range_u32(true);
+}
+TEST_END
+
+TEST_BEGIN(test_prng_lg_range_u64_nonatomic)
+{
+
+	test_prng_lg_range_u64();
+}
+TEST_END
+
+TEST_BEGIN(test_prng_lg_range_zu_nonatomic)
+{
+
+	test_prng_lg_range_zu(false);
+}
+TEST_END
+
+TEST_BEGIN(test_prng_lg_range_zu_atomic)
+{
+
+	test_prng_lg_range_zu(true);
+}
+TEST_END
+
+static void
+test_prng_range_u32(bool atomic)
+{
+	uint32_t range;
+#define	MAX_RANGE	10000000
+#define	RANGE_STEP	97
+#define	NREPS		10
+
+	for (range = 2; range < MAX_RANGE; range += RANGE_STEP) {
+		uint32_t s;
+		unsigned rep;
+
+		s = range;
+		for (rep = 0; rep < NREPS; rep++) {
+			uint32_t r = prng_range_u32(&s, range, atomic);
+
+			assert_u32_lt(r, range, "Out of range");
+		}
+	}
+}
+
+static void
+test_prng_range_u64(void)
+{
+	uint64_t range;
+#define	MAX_RANGE	10000000
+#define	RANGE_STEP	97
+#define	NREPS		10
+
+	for (range = 2; range < MAX_RANGE; range += RANGE_STEP) {
+		uint64_t s;
+		unsigned rep;
+
+		s = range;
+		for (rep = 0; rep < NREPS; rep++) {
+			uint64_t r = prng_range_u64(&s, range);
+
+			assert_u64_lt(r, range, "Out of range");
+		}
+	}
+}
+
+static void
+test_prng_range_zu(bool atomic)
+{
+	size_t range;
+#define	MAX_RANGE	10000000
+#define	RANGE_STEP	97
+#define	NREPS		10
+
+	for (range = 2; range < MAX_RANGE; range += RANGE_STEP) {
+		size_t s;
+		unsigned rep;
+
+		s = range;
+		for (rep = 0; rep < NREPS; rep++) {
+			size_t r = prng_range_zu(&s, range, atomic);
+
+			assert_zu_lt(r, range, "Out of range");
+		}
+	}
+}
+
+TEST_BEGIN(test_prng_range_u32_nonatomic)
+{
+
+	test_prng_range_u32(false);
+}
+TEST_END
+
+TEST_BEGIN(test_prng_range_u32_atomic)
+{
+
+	test_prng_range_u32(true);
+}
+TEST_END
+
+TEST_BEGIN(test_prng_range_u64_nonatomic)
+{
+
+	test_prng_range_u64();
+}
+TEST_END
+
+TEST_BEGIN(test_prng_range_zu_nonatomic)
+{
+
+	test_prng_range_zu(false);
+}
+TEST_END
+
+TEST_BEGIN(test_prng_range_zu_atomic)
+{
+
+	test_prng_range_zu(true);
+}
+TEST_END
+
+int
+main(void)
+{
+
+	return (test(
+	    test_prng_lg_range_u32_nonatomic,
+	    test_prng_lg_range_u32_atomic,
+	    test_prng_lg_range_u64_nonatomic,
+	    test_prng_lg_range_zu_nonatomic,
+	    test_prng_lg_range_zu_atomic,
+	    test_prng_range_u32_nonatomic,
+	    test_prng_range_u32_atomic,
+	    test_prng_range_u64_nonatomic,
+	    test_prng_range_zu_nonatomic,
+	    test_prng_range_zu_atomic));
+}