From d2df34996b4755a55094ca2ead601e0345ab0ac5 Mon Sep 17 00:00:00 2001
From: Nguyen Quang Minh <hello@minhng99.cloud>
Date: Sun, 17 Feb 2019 15:53:58 +0700
Subject: [PATCH] Add support for Intel C Compiler

---
 cmake/flags.cmake            | 8 ++++++++
 src/crypto/CryptoNight.h     | 2 +-
 src/crypto/CryptoNight_x86.h | 4 +++-
 3 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/cmake/flags.cmake b/cmake/flags.cmake
index 3989cb71..3aa94ff2 100644
--- a/cmake/flags.cmake
+++ b/cmake/flags.cmake
@@ -70,4 +70,12 @@ elseif (CMAKE_CXX_COMPILER_ID MATCHES Clang)
         set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -maes")
     endif()
 
+elseif (CMAKE_CXX_COMPILER_ID MATCHES Intel)
+
+    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall")
+    set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -O3 -funroll-loops")
+
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -fno-exceptions -fno-rtti")
+    set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -O3 -funroll-loops")
+
 endif()
diff --git a/src/crypto/CryptoNight.h b/src/crypto/CryptoNight.h
index 8a48eafd..7a21b9b1 100644
--- a/src/crypto/CryptoNight.h
+++ b/src/crypto/CryptoNight.h
@@ -29,7 +29,7 @@
 #include <stddef.h>
 #include <stdint.h>
 
-#if defined _MSC_VER || defined XMRIG_ARM
+#if defined _MSC_VER || defined XMRIG_ARM || defined __INTEL_COMPILER
 #define ABI_ATTRIBUTE
 #else
 #define ABI_ATTRIBUTE __attribute__((ms_abi))
diff --git a/src/crypto/CryptoNight_x86.h b/src/crypto/CryptoNight_x86.h
index b6969571..1bcf0a84 100644
--- a/src/crypto/CryptoNight_x86.h
+++ b/src/crypto/CryptoNight_x86.h
@@ -446,8 +446,10 @@ static inline __m128i int_sqrt_v2(const uint64_t n0)
     r >>= 19;
 
     uint64_t x2 = (s - (1022ULL << 32)) * (r - s - (1022ULL << 32) + 1);
-#   if (defined(_MSC_VER) || __GNUC__ > 7 || (__GNUC__ == 7 && __GNUC_MINOR__ > 1)) && (defined(__x86_64__) || defined(_M_AMD64))
+#   if (defined(_MSC_VER) || __GNUC__ > 7 || (__GNUC__ == 7 && __GNUC_MINOR__ > 1)) && (defined(__x86_64__) || defined(_M_AMD64)) && !defined(__INTEL_COMPILER)
     _addcarry_u64(_subborrow_u64(0, x2, n0, (unsigned long long int*)&x2), r, 0, (unsigned long long int*)&r);
+#   elif defined(__INTEL_COMPILER)
+    _addcarry_u64(_subborrow_u64(0, x2, n0, (unsigned long int*)&x2), r, 0, (unsigned long int*)&r);
 #   else
     if (x2 < n0) ++r;
 #   endif