From 38c40c02e623638489775763f2af4ee6a5d50fe5 Mon Sep 17 00:00:00 2001
From: MITSUNARI Shigeo <herumi@nifty.com>
Date: Wed, 11 May 2022 14:04:22 +0900
Subject: [PATCH] detection of clflushopt

---
 sample/test_util.cpp | 1 +
 xbyak/xbyak_util.h   | 3 +++
 2 files changed, 4 insertions(+)

diff --git a/sample/test_util.cpp b/sample/test_util.cpp
index 60cf77a..39ed906 100644
--- a/sample/test_util.cpp
+++ b/sample/test_util.cpp
@@ -84,6 +84,7 @@ void putCPUinfo()
 		{ Cpu::tAVX_VNNI, "avx_vnni" },
 		{ Cpu::tAVX512_FP16, "avx512_fp16" },
 		{ Cpu::tWAITPKG, "waitpkg" },
+		{ Cpu::tCLFLUSHOPT, "clflushopt" },
 	};
 	for (size_t i = 0; i < NUM_OF_ARRAY(tbl); i++) {
 		if (cpu.has(tbl[i].type)) printf(" %s", tbl[i].str);
diff --git a/xbyak/xbyak_util.h b/xbyak/xbyak_util.h
index 1db92cb..86d8d15 100644
--- a/xbyak/xbyak_util.h
+++ b/xbyak/xbyak_util.h
@@ -428,6 +428,7 @@ public:
 	static const Type tAMX_INT8;
 	static const Type tAMX_BF16;
 	static const Type tAVX_VNNI;
+	static const Type tCLFLUSHOPT;
 
 	CpuT()
 		: type_(NONE)
@@ -543,6 +544,7 @@ public:
 			if (EBX & (1U << 18)) type_ |= tRDSEED;
 			if (EBX & (1U << 19)) type_ |= tADX;
 			if (EBX & (1U << 20)) type_ |= tSMAP;
+			if (EBX & (1U << 23)) type_ |= tCLFLUSHOPT;
 			if (EBX & (1U << 4)) type_ |= tHLE;
 			if (EBX & (1U << 11)) type_ |= tRTM;
 			if (EBX & (1U << 14)) type_ |= tMPX;
@@ -647,6 +649,7 @@ template<int dummy> const Type CpuT<dummy>::tAMX_TILE = uint64_t(1) << 59;
 template<int dummy> const Type CpuT<dummy>::tAMX_INT8 = uint64_t(1) << 60;
 template<int dummy> const Type CpuT<dummy>::tAMX_BF16 = uint64_t(1) << 61;
 template<int dummy> const Type CpuT<dummy>::tAVX_VNNI = uint64_t(1) << 62;
+template<int dummy> const Type CpuT<dummy>::tCLFLUSHOPT = Type(1) << 63;
 
 } // local