[gmp] arm64 windows asm optimization

ports/gmp/arm64-coff.patch

@@ -0,0 +1,73 @@
+diff --git a/configure.ac b/configure.ac
+index bd92bc4..bd2c0af 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -3704,6 +3704,8 @@ if test "$gmp_asm_syntax_testing" != no; then
+ 	  case $host in
+ 	    *-*-darwin*)
+ 	      GMP_INCLUDE_MPN(arm64/darwin.m4) ;;
++	    *-pc-mingw32)
++	      GMP_INCLUDE_MPN(arm64/coff.m4) ;;
+ 	    *)
+ 	      GMP_INCLUDE_MPN(arm64/arm64-defs.m4) ;;
+           esac
+diff --git a/mpn/arm64/coff.m4 b/mpn/arm64/coff.m4
+new file mode 100644
+index 0000000..88605b3
+--- /dev/null
++++ b/mpn/arm64/coff.m4
+@@ -0,0 +1,54 @@
++divert(-1)
++
++dnl  m4 macros for ARM64 COFF assembler.
++
++dnl  Copyright 2020 Free Software Foundation, Inc.
++
++dnl  This file is part of the GNU MP Library.
++dnl
++dnl  The GNU MP Library is free software; you can redistribute it and/or modify
++dnl  it under the terms of either:
++dnl
++dnl    * the GNU Lesser General Public License as published by the Free
++dnl      Software Foundation; either version 3 of the License, or (at your
++dnl      option) any later version.
++dnl
++dnl  or
++dnl
++dnl    * the GNU General Public License as published by the Free Software
++dnl      Foundation; either version 2 of the License, or (at your option) any
++dnl      later version.
++dnl
++dnl  or both in parallel, as here.
++dnl
++dnl  The GNU MP Library is distributed in the hope that it will be useful, but
++dnl  WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
++dnl  or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
++dnl  for more details.
++dnl
++dnl  You should have received copies of the GNU General Public License and the
++dnl  GNU Lesser General Public License along with the GNU MP Library.  If not,
++dnl  see https://www.gnu.org/licenses/.
++
++
++dnl  Standard commenting is with @, the default m4 # is for constants and we
++dnl  don't want to disable macro expansions in or after them.
++
++changecom
++
++
++dnl  LEA_HI(reg,gmp_symbol), LEA_LO(reg,gmp_symbol)
++dnl
++dnl  Load the address of gmp_symbol into a register. We split this into two
++dnl  parts to allow separation for manual insn scheduling.
++
++define(`LEA_HI', `ldr	$1, =$2')dnl
++define(`LEA_LO')dnl
++
++dnl  Usage: ALIGN(bytes)
++dnl
++dnl  Emit a ".align" directive.
++
++define(`ALIGN', `  .align 8')dnl
++
++divert`'dnl

ports/gmp/portfile.cmake

@@ -12,6 +12,41 @@ vcpkg_download_distfile(
 if(VCPKG_TARGET_IS_WINDOWS AND NOT VCPKG_TARGET_IS_MINGW)
     set(PATCHES yasm.patch
                 msvc_symbol.patch)
+
+    if(VCPKG_TARGET_ARCHITECTURE STREQUAL "arm64")
+        # Hint to use clang x86/x64 version in emulation mode on an ARM device 
+        vcpkg_add_to_path("$ENV{VCINSTALLDIR}/Tools/Llvm/bin")
+
+        find_program(clang-cl-check clang-cl)
+        if (NOT clang-cl-check)
+            message(FATAL_ERROR "${PORT} requires Clang installed for ${VCPKG_TARGET_ARCHITECTURE} target architecture. For instance, Clang can be installed by using Visual Studio or LLVM installers")
+        endif()
+
+        set(ENV{CCAS} "clang-cl --target=arm64-pc-win32 -c")
+        # Avoid the x18 register since it is reserved on Darwin.
+        vcpkg_download_distfile(
+            ARM64PATCH
+            URLS https://gmplib.org/repo/gmp/raw-rev/5f32dbc41afc
+            FILENAME gmp-arm64-asm-fix-5f32dbc41afc.patch
+            SHA512 4a7c50dc0a78e6c297c0ac53129ed367dbf669100a613653987d0eddf175376296254ed26ecce15d02b0544b99e44719af49635e54982b22e745f22e2f8d1eda
+        )
+
+        list(APPEND PATCHES "${ARM64PATCH}" arm64-coff.patch)
+    elseif(VCPKG_TARGET_ARCHITECTURE STREQUAL "arm")
+        list(APPEND OPTIONS --enable-assembly=no)
+    else()
+        set(ENV{CCAS} "${CURRENT_HOST_INSTALLED_DIR}/tools/yasm/yasm${VCPKG_HOST_EXECUTABLE_SUFFIX}")
+        if(VCPKG_TARGET_ARCHITECTURE STREQUAL "x64")
+            set(asmflag win64)
+        elseif(VCPKG_TARGET_ARCHITECTURE STREQUAL "x86")
+            set(asmflag win32)
+        endif()
+        set(ENV{ASMFLAGS} "-Xvc -f ${asmflag} -pgas -rraw")
+    endif()
+
+    list(APPEND OPTIONS ac_cv_func_memset=yes
+                "gmp_cv_asm_w32=.word"
+                )
 endif()
 
 vcpkg_extract_source_archive_ex(
@@ -23,30 +58,12 @@ vcpkg_extract_source_archive_ex(
         tools.patch
 )
 
-if(VCPKG_TARGET_IS_WINDOWS AND NOT VCPKG_TARGET_IS_MINGW)
-    set(ENV{CCAS} "${CURRENT_HOST_INSTALLED_DIR}/tools/yasm/yasm${VCPKG_HOST_EXECUTABLE_SUFFIX}")
-    if(VCPKG_TARGET_ARCHITECTURE STREQUAL "x64")
-        set(asmflag win64)
-    elseif(VCPKG_TARGET_ARCHITECTURE STREQUAL "x86")
-        set(asmflag win32)
-    endif()
-    set(ENV{ASMFLAGS} "-Xvc -f ${asmflag} -pgas -rraw")
-    set(OPTIONS ac_cv_func_memset=yes
-                "gmp_cv_asm_w32=.word"
-                )
-
-endif()
-
 if(VCPKG_CROSSCOMPILING)
-    # Silly trick to make configure accept CC_FOR_BUILD but in reallity CC_FOR_BUILD is deactivated. 
+    # Silly trick to make configure accept CC_FOR_BUILD but in reallity CC_FOR_BUILD is deactivated.
     set(ENV{CC_FOR_BUILD} "touch a.out | touch conftest${VCPKG_HOST_EXECUTABLE_SUFFIX} | true")
     set(ENV{CPP_FOR_BUILD} "touch a.out | touch conftest${VCPKG_HOST_EXECUTABLE_SUFFIX} | true")
 endif()
 
-if(VCPKG_TARGET_IS_WINDOWS AND VCPKG_TARGET_ARCHITECTURE MATCHES "^(arm|arm64)$")
-    list(APPEND OPTIONS --enable-assembly=no)
-endif()
-
 vcpkg_configure_make(
     SOURCE_PATH "${SOURCE_PATH}"
     AUTOCONFIG

ports/gmp/vcpkg.json

@@ -1,7 +1,7 @@
 {
   "name": "gmp",
   "version": "6.2.1",
-  "port-version": 13,
+  "port-version": 14,
   "description": "The GNU Multiple Precision Arithmetic Library",
   "homepage": "https://gmplib.org",
   "license": "LGPL-3.0-only OR GPL-2.0-only",

versions/baseline.json

@@ -2690,7 +2690,7 @@
     },
     "gmp": {
       "baseline": "6.2.1",
-      "port-version": 13
+      "port-version": 14
     },
     "gmsh": {
       "baseline": "4.9.0",

versions/g-/gmp.json

@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "bbdf09a738d5ead125ea27d5b4cd6ffd957b2fae",
+      "version": "6.2.1",
+      "port-version": 14
+    },
     {
       "git-tree": "28b5b46e27a69da50c1cd0a8be5d0a32cbca120b",
       "version": "6.2.1",