devel/intel-graphics-compiler: add llvm12 (beta) flavor

https://github.com/intel/intel-graphics-compiler/projects/2

devel/intel-graphics-compiler/Makefile

@@ -2,6 +2,7 @@ PORTNAME=	intel-graphics-compiler
 DISTVERSIONPREFIX=	igc-
 DISTVERSION=	1.0.8744
 CATEGORIES=	devel
+PKGNAMESUFFIX=	-${FLAVOR}
 
 MAINTAINER=	jbeich@FreeBSD.org
 COMMENT=	Intel Graphics Compiler for OpenCL
@@ -12,16 +13,20 @@ LICENSE_FILE=	${WRKSRC}/LICENSE.md
 ONLY_FOR_ARCHS=	amd64 i386
 ONLY_FOR_ARCHS_REASON=	Only Intel GPUs on x86 are supported
 
-BUILD_DEPENDS=	vc-intrinsics-llvm11>=s20210730:devel/vc-intrinsics@llvm11
-LIB_DEPENDS=	libopencl-clang.so.11:devel/opencl-clang@llvm11
+BUILD_DEPENDS=	vc-intrinsics-${FLAVOR}>=s20210730:devel/vc-intrinsics@${FLAVOR}
+LIB_DEPENDS=	libopencl-clang.so.${FLAVOR:S/llvm//}:devel/opencl-clang@${FLAVOR}
+
+FLAVORS=	${12 11:L:S/^/llvm/}
+
+CONFLICTS_INSTALL=	${PORTNAME}-*
 
 USES=		bison cmake compiler:c++17-lang python:build
 USE_GITHUB=	yes
 USE_LDCONFIG=	yes
 GH_ACCOUNT=	intel
 CMAKE_OFF=	INSTALL_SPIRVDLL
-CMAKE_ARGS=	-DCMAKE_PREFIX_PATH:PATH="${LOCALBASE}/${LIB_DEPENDS:M*@llvm*:C/.*@//}" \
-		-DIGC_OPTION__LLVM_PREFERRED_VERSION:STRING="${LIB_DEPENDS:M*@llvm*:C/.*so\.//:C/:.*//}"
+CMAKE_ARGS=	-DCMAKE_PREFIX_PATH:PATH="${LOCALBASE}/${FLAVOR}" \
+		-DIGC_OPTION__LLVM_PREFERRED_VERSION:STRING="${FLAVOR:S/llvm//}"
 CFLAGS+=	-Wno-macro-redefined # __fastcall
 PLIST_SUB=	ARCH_SUFX=${ARCH:S/i386/32/:S/amd//:S/x86_//}
 

devel/intel-graphics-compiler/files/patch-llvm12

@@ -0,0 +1,22 @@
+CMake Error at external/llvm/llvm_deps.cmake:50 (file):
+  file COPY cannot find
+  "IGC/DEFAULT_IGC_LLVM_SOURCES_DIR-NOTFOUND/libunwind/include/mach-o/compact_unwind_encoding.h":
+  No such file or directory.
+Call Stack (most recent call first):
+  IGC/CMakeLists.txt:1250 (include)
+
+--- external/llvm/llvm_deps.cmake.orig	2021-09-16 08:50:38 UTC
++++ external/llvm/llvm_deps.cmake
+@@ -44,12 +44,6 @@ include(llvm_spirv_source_hook)
+ # LLD source hook.
+ if(IGC_OPTION__LLVM_LLD)
+   include(llvm_lld_source_hook)
+-  if(NOT EXISTS "${IGC_LLVM_WORKSPACE_SRC}/libunwind/include/mach-o" AND ${IGC_OPTION__LLVM_PREFERRED_VERSION} GREATER_EQUAL "12.0.0")
+-    # Need to copy one header from unwind package for LLD (only for building from sources)
+-    file(MAKE_DIRECTORY ${IGC_LLVM_WORKSPACE_SRC}/libunwind/include/mach-o)
+-    file(COPY ${DEFAULT_IGC_LLVM_SOURCES_DIR}/libunwind/include/mach-o/compact_unwind_encoding.h
+-         DESTINATION ${IGC_LLVM_WORKSPACE_SRC}/libunwind/include/mach-o/)
+-  endif()
+ endif()
+ 
+ # Process LLVM.

lang/intel-compute-runtime/Makefile

@@ -2,6 +2,7 @@ PORTNAME=	compute-runtime
 DISTVERSION=	21.37.20939
 CATEGORIES=	lang
 PKGNAMEPREFIX=	intel-
+PKGNAMESUFFIX=	-${FLAVOR}
 
 PATCH_SITES=	https://github.com/${GH_ACCOUNT}/${GH_PROJECT}/commit/
 PATCHFILES+=	aa5a39a2db79.patch:-p1 # https://github.com/intel/compute-runtime/pull/361
@@ -15,9 +16,13 @@ LICENSE_FILE=	${WRKSRC}/LICENSE.md
 ONLY_FOR_ARCHS=	amd64 i386
 ONLY_FOR_ARCHS_REASON=	Only Intel GPUs on x86 are supported
 
-LIB_DEPENDS=	libigc.so:devel/intel-graphics-compiler \
+LIB_DEPENDS=	libigc.so:devel/intel-graphics-compiler@${FLAVOR} \
 		libigdgmm.so:multimedia/gmmlib
 
+FLAVORS=	${12 11:L:S/^/llvm/}
+
+CONFLICTS_INSTALL=	${PORTNAME}-*
+
 USES=		cmake compiler:c++17-lang localbase:ldflags pkgconfig
 USE_GITHUB=	yes
 USE_LDCONFIG=	yes