From c2d5f6da90c10bf498588a8d3956807c13f48286 Mon Sep 17 00:00:00 2001
From: Wunkolo <Wunkolo@gmail.com>
Date: Wed, 9 Sep 2020 09:40:09 -0700
Subject: [PATCH] block_of_code: Add HasAVX512_Icelake

Detect AVX512 feature support up to the [Icelake-level featureset](https://en.wikipedia.org/wiki/AVX-512#CPUs_with_AVX-512)
---
 src/backend/x64/block_of_code.cpp | 15 +++++++++++++++
 src/backend/x64/block_of_code.h   |  1 +
 2 files changed, 16 insertions(+)

diff --git a/src/backend/x64/block_of_code.cpp b/src/backend/x64/block_of_code.cpp
index 15c42dbd..4d15eb73 100644
--- a/src/backend/x64/block_of_code.cpp
+++ b/src/backend/x64/block_of_code.cpp
@@ -384,6 +384,21 @@ bool BlockOfCode::HasAVX512_Skylake() const {
         && DoesCpuSupport(Xbyak::util::Cpu::tAVX512VL);
 }
 
+bool BlockOfCode::HasAVX512_Icelake() const {
+    return DoesCpuSupport(Xbyak::util::Cpu::tAVX512F)
+        && DoesCpuSupport(Xbyak::util::Cpu::tAVX512CD)
+        && DoesCpuSupport(Xbyak::util::Cpu::tAVX512BW)
+        && DoesCpuSupport(Xbyak::util::Cpu::tAVX512DQ)
+        && DoesCpuSupport(Xbyak::util::Cpu::tAVX512VL)
+        && DoesCpuSupport(Xbyak::util::Cpu::tAVX512_VPOPCNTDQ)
+        && DoesCpuSupport(Xbyak::util::Cpu::tAVX512_VNNI)
+        && DoesCpuSupport(Xbyak::util::Cpu::tGFNI)
+        && DoesCpuSupport(Xbyak::util::Cpu::tVAES)
+        && DoesCpuSupport(Xbyak::util::Cpu::tAVX512_VBMI2)
+        && DoesCpuSupport(Xbyak::util::Cpu::tAVX512_BITALG)
+        && DoesCpuSupport(Xbyak::util::Cpu::tVPCLMULQDQ);
+}
+
 bool BlockOfCode::HasAVX512_BITALG() const {
     return DoesCpuSupport(Xbyak::util::Cpu::tAVX512_BITALG);
 }
diff --git a/src/backend/x64/block_of_code.h b/src/backend/x64/block_of_code.h
index 43c26cbd..23ed1683 100644
--- a/src/backend/x64/block_of_code.h
+++ b/src/backend/x64/block_of_code.h
@@ -158,6 +158,7 @@ public:
     bool HasFMA() const;
     bool HasAVX2() const;
     bool HasAVX512_Skylake() const;
+    bool HasAVX512_Icelake() const;
     bool HasAVX512_BITALG() const;
 
 private: