D28395.id83033.diff
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D28395.id83033.diff
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	Index: tests/sys/kern/libkern_crc32.c
	===================================================================
	--- tests/sys/kern/libkern_crc32.c
	+++ tests/sys/kern/libkern_crc32.c
	@@ -37,6 +37,31 @@
	#error These tests are not supported on this platform
	#endif

	+#if defined(__amd64__) \|\| defined(__i386__)
	+#include <machine/cpufunc.h>
	+#include <machine/specialreg.h>
	+
	+static void
	+skip_test_if_cpu_features_missing(void)
	+{
	+
	+ u_int cpu_registers[4], ecx;
	+
	+ do_cpuid(1, cpu_registers);
	+
	+ ecx = cpu_registers[2];
	+
	+ if ((ecx & CPUID2_SSE42) == 0) {
	+ atf_tc_skip("SSE4.2 not supported.");
	+ }
	+}
	+#else
	+static void
	+skip_test_if_cpu_features_missing(void)
	+{
	+}
	+#endif
	+
	ATF_TC_WITHOUT_HEAD(crc32c_basic_correctness);
	ATF_TC_BODY(crc32c_basic_correctness, tc)
	{
	@@ -81,6 +106,8 @@

	ATF_REQUIRE(nitems(inputs) == nitems(results));

	+ skip_test_if_cpu_features_missing();
	+
	for (i = 0; i < nitems(inputs); i++) {
	#if defined(__amd64__) \|\| defined(__i386__)
	act = sse42_crc32c(~0, (const void *)&inputs[i],
	@@ -104,6 +131,8 @@
	size_t i;
	uint32_t act;

	+ skip_test_if_cpu_features_missing();
	+

	for (i = 1; i < 8; i++) {
	memcpy(&buf[i], &input, sizeof(input));
	@@ -129,6 +158,8 @@
	const uint32_t result = 0xec638d62;
	uint32_t act;

	+ skip_test_if_cpu_features_missing();
	+
	#if defined(__amd64__) \|\| defined(__i386__)
	act = sse42_crc32c(~0, input, sizeof(input));
	#else