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-rw-r--r--tools/CppunitTest_tools_test.mk4
-rw-r--r--tools/qa/cppunit/test_cpuid.cxx74
-rw-r--r--tools/source/misc/cpuid.cxx119
3 files changed, 171 insertions, 26 deletions
diff --git a/tools/CppunitTest_tools_test.mk b/tools/CppunitTest_tools_test.mk
index ad56d893ae80..a4cdf8626f3a 100644
--- a/tools/CppunitTest_tools_test.mk
+++ b/tools/CppunitTest_tools_test.mk
@@ -31,6 +31,10 @@ $(eval $(call gb_CppunitTest_add_exception_objects,tools_test, \
tools/qa/cppunit/test_xmlwalker \
))
+$(eval $(call gb_CppunitTest_add_cxxobjects,tools_test,\
+ tools/qa/cppunit/test_cpuid, $(gb_LinkTarget_EXCEPTIONFLAGS) $(INTRINSICS_CXXFLAGS) \
+))
+
$(eval $(call gb_CppunitTest_use_sdk_api,tools_test))
$(eval $(call gb_CppunitTest_use_libraries,tools_test, \
diff --git a/tools/qa/cppunit/test_cpuid.cxx b/tools/qa/cppunit/test_cpuid.cxx
new file mode 100644
index 000000000000..fdb19d0ec133
--- /dev/null
+++ b/tools/qa/cppunit/test_cpuid.cxx
@@ -0,0 +1,74 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include <cppunit/TestAssert.h>
+#include <cppunit/TestFixture.h>
+#include <cppunit/extensions/HelperMacros.h>
+#include <cppunit/plugin/TestPlugIn.h>
+#include <tools/cpuid.hxx>
+#include <tools/simd.hxx>
+#include <rtl/ustring.hxx>
+
+namespace
+{
+class CpuInstructionSetSupport : public CppUnit::TestFixture
+{
+public:
+ void testCpuInstructionSetSupport();
+
+ CPPUNIT_TEST_SUITE(CpuInstructionSetSupport);
+ CPPUNIT_TEST(testCpuInstructionSetSupport);
+ CPPUNIT_TEST_SUITE_END();
+};
+
+void CpuInstructionSetSupport::testCpuInstructionSetSupport()
+{
+ OUString aString = cpuid::instructionSetSupportedString();
+
+ if (cpuid::isCpuInstructionSetSupported(cpuid::InstructionSetFlags::SSE2))
+ {
+ CPPUNIT_ASSERT(aString.indexOf("SSE2") >= 0);
+ }
+
+ if (cpuid::isCpuInstructionSetSupported(cpuid::InstructionSetFlags::SSSE3))
+ {
+ CPPUNIT_ASSERT(aString.indexOf("SSSE3") >= 0);
+ }
+
+ if (cpuid::isCpuInstructionSetSupported(cpuid::InstructionSetFlags::AVX))
+ {
+ CPPUNIT_ASSERT(aString.indexOf("AVX") > 0);
+ }
+
+ if (cpuid::isCpuInstructionSetSupported(cpuid::InstructionSetFlags::AVX2))
+ {
+ CPPUNIT_ASSERT(aString.indexOf("AVX2") > 0);
+ }
+
+#ifdef LO_SSE2_AVAILABLE
+ CPPUNIT_ASSERT_EQUAL(cpuid::hasSSE2(),
+ cpuid::isCpuInstructionSetSupported(cpuid::InstructionSetFlags::SSE2));
+#endif
+
+#ifdef LO_SSSE3_AVAILABLE
+ CPPUNIT_ASSERT_EQUAL(cpuid::hasSSSE3(),
+ cpuid::isCpuInstructionSetSupported(cpuid::InstructionSetFlags::SSE2));
+#endif
+
+#ifdef LO_AVX2_AVAILABLE
+ CPPUNIT_ASSERT_EQUAL(cpuid::hasAVX2(),
+ cpuid::isCpuInstructionSetSupported(cpuid::InstructionSetFlags::AVX2));
+#endif
+}
+
+CPPUNIT_TEST_SUITE_REGISTRATION(CpuInstructionSetSupport);
+
+} // end anonymous namespace
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/tools/source/misc/cpuid.cxx b/tools/source/misc/cpuid.cxx
index ee5093ce1892..e8699cbdf51c 100644
--- a/tools/source/misc/cpuid.cxx
+++ b/tools/source/misc/cpuid.cxx
@@ -11,25 +11,21 @@
#include <tools/cpuid.hxx>
#include <cstdint>
-namespace tools
-{
-namespace cpuid
-{
+namespace cpuid {
+
+namespace {
-namespace
-{
#if defined(_MSC_VER)
#include <intrin.h>
-void getCpuId(uint32_t array[4])
+void getCpuId(uint32_t array[4], uint32_t nInfoType)
{
- __cpuid(reinterpret_cast<int*>(array), 1);
+ __cpuid(reinterpret_cast<int*>(array), nInfoType);
}
-#else
-#if (defined(__i386__) || defined(__x86_64__))
+#elif (defined(__i386__) || defined(__x86_64__))
#include <cpuid.h>
-void getCpuId(uint32_t array[4])
+void getCpuId(uint32_t array[4], uint32_t nInfoType)
{
- __get_cpuid(1, array + 0, array + 1, array + 2, array + 3);
+ __cpuid_count(nInfoType, 0, *(array + 0), *(array + 1), *(array + 2), *(array + 3));
}
#else
void getCpuId(uint32_t array[4])
@@ -37,33 +33,104 @@ void getCpuId(uint32_t array[4])
array[0] = array[1] = array[2] = array[3] = 0;
}
#endif
+
+// For AVX we need to check if OS has support for ymm registers
+bool checkAVXSupportInOS()
+{
+ uint32_t xcr0 = 0;
+#if defined(_MSC_VER)
+ xcr0 = uint32_t(_xgetbv(0));
+#elif (defined(__i386__) || defined(__x86_64__))
+ __asm__("xgetbv" : "=a" (xcr0) : "c" (0) : "%edx");
#endif
+ return ((xcr0 & 6) == 6); /* checking if xmm and ymm state are enabled in XCR0 */
}
-#if defined(LO_SSE2_AVAILABLE)
+} // end anonymous namespace
-bool hasSSE2()
+#define HYPER_bit (1 << 28)
+#define SSE2_bit (1 << 26)
+#define SSSE3_bit (1 << 9)
+#define SSE41_bit (1 << 19)
+#define SSE42_bit (1 << 20)
+#define XSAVE_bit (1 << 27)
+#define AVX_bit (1 << 28)
+#define AVX2_bit (1 << 5)
+
+InstructionSetFlags getCpuInstructionSetFlags()
{
- uint32_t cpuInfoArray[] = {0, 0, 0, 0};
- getCpuId(cpuInfoArray);
- return (cpuInfoArray[3] & (1 << 26)) != 0;
-}
+ InstructionSetFlags eInstructions = InstructionSetFlags::NONE;
-#else
+ uint32_t info[] = {0, 0, 0, 0};
+ getCpuId(info, 0);
+ int nLevel = info[0];
-bool hasSSE2() { return false; }
+ if (nLevel >= 1)
+ {
+ uint32_t aCpuInfoArray[] = {0, 0, 0, 0};
+ getCpuId(aCpuInfoArray, 1);
-#endif
+ if ((aCpuInfoArray[3] & HYPER_bit) != 0)
+ eInstructions |= InstructionSetFlags::HYPER;
-bool hasHyperThreading()
-{
- uint32_t cpuInfoArray[] = {0, 0, 0, 0};
- getCpuId(cpuInfoArray);
- return (cpuInfoArray[3] & (1 << 28)) != 0;
+ if ((aCpuInfoArray[3] & SSE2_bit) != 0)
+ eInstructions |= InstructionSetFlags::SSE2;
+
+ if ((aCpuInfoArray[2] & SSSE3_bit) != 0)
+ eInstructions |= InstructionSetFlags::SSSE3;
+
+ if ((aCpuInfoArray[2] & SSE41_bit ) != 0)
+ eInstructions |= InstructionSetFlags::SSE41;
+
+ if ((aCpuInfoArray[2] & SSE42_bit) != 0)
+ eInstructions |= InstructionSetFlags::SSE42;
+
+ if (((aCpuInfoArray[2] & AVX_bit) != 0) &&
+ ((aCpuInfoArray[2] & XSAVE_bit) != 0))
+ {
+ if (checkAVXSupportInOS())
+ {
+ eInstructions |= InstructionSetFlags::AVX;
+
+ if (nLevel >= 7)
+ {
+ uint32_t aExtendedInfo[] = {0, 0, 0, 0};
+ getCpuId(aExtendedInfo, 7);
+
+ if ((aExtendedInfo[1] & AVX2_bit) != 0)
+ eInstructions |= InstructionSetFlags::AVX2;
+ }
+ }
+ }
+ }
+
+ return eInstructions;
}
+bool isCpuInstructionSetSupported(InstructionSetFlags eInstructions)
+{
+ static InstructionSetFlags eCPUFlags = getCpuInstructionSetFlags();
+ return (eCPUFlags & eInstructions) == eInstructions;
}
+
+OUString instructionSetSupportedString()
+{
+ OUString aString;
+ if (isCpuInstructionSetSupported(InstructionSetFlags::SSE2))
+ aString += "SSE2 ";
+ if (isCpuInstructionSetSupported(InstructionSetFlags::SSSE3))
+ aString += "SSSE3 ";
+ if (isCpuInstructionSetSupported(InstructionSetFlags::SSE41))
+ aString += "SSE4.1 ";
+ if (isCpuInstructionSetSupported(InstructionSetFlags::SSE42))
+ aString += "SSE4.2 ";
+ if (isCpuInstructionSetSupported(InstructionSetFlags::AVX))
+ aString += "AVX ";
+ if (isCpuInstructionSetSupported(InstructionSetFlags::AVX2))
+ aString += "AVX2 ";
+ return aString;
}
+} // end cpuid
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-26 19:34:57 +0000