devel/llvm1[23]: Add BE_WASM option

When set, always build the WebAssembly backend (now required by Firefox
via wasi).  This option effects BE_FREEBSD and BE_NATIVE.  It has no
effect on BE_STANDARD.

This option is enabled by default.

devel/llvm12/Makefile

 PORTNAME=	llvm
 DISTVERSION=	12.0.1
-PORTREVISION=	6
+PORTREVISION=	7
 CATEGORIES=	devel lang
 MASTER_SITES=	https://github.com/llvm/llvm-project/releases/download/llvmorg-${DISTVERSION:S/rc/-rc/}/ \
 		https://${PRE_}releases.llvm.org/${LLVM_RELEASE}/${RCDIR}
@@ -73,7 +73,7 @@ CMAKE_ARGS+=	-DLLVM_ENABLE_TERMINFO=OFF
 CFLAGS+=	-DNDEBUG
 CXXFLAGS+=	-DNDEBUG
 
-OPTIONS_DEFINE=	BE_AMDGPU CLANG DOCS EXTRAS LIT LLD PYCLANG
+OPTIONS_DEFINE=	BE_AMDGPU BE_WASM CLANG DOCS EXTRAS LIT LLD PYCLANG
 OPTIONS_DEFINE_aarch64=	OPENMP
 OPTIONS_DEFINE_amd64=	COMPILER_RT GOLD LLDB OPENMP
 OPTIONS_DEFINE_i386=	COMPILER_RT LLDB OPENMP
@@ -81,7 +81,7 @@ OPTIONS_DEFINE_powerpc=	GOLD
 OPTIONS_DEFINE_powerpc64=	GOLD OPENMP
 OPTIONS_DEFINE_powerpc64le=	GOLD OPENMP
 OPTIONS_DEFINE_riscv64=	OPENMP
-OPTIONS_DEFAULT=	BE_AMDGPU BE_STANDARD CLANG EXTRAS LIT LLD PYCLANG
+OPTIONS_DEFAULT=	BE_AMDGPU BE_STANDARD BE_WASM CLANG EXTRAS LIT LLD PYCLANG
 OPTIONS_DEFAULT_aarch64=	OPENMP
 OPTIONS_DEFAULT_amd64=	COMPILER_RT GOLD LLDB OPENMP
 OPTIONS_DEFAULT_i386=	COMPILER_RT LLDB OPENMP
@@ -103,6 +103,7 @@ BE_FREEBSD_CMAKE_ON=	-DLLVM_TARGETS_TO_BUILD="${FREEBSD_BACKENDS:ts;}"
 BE_NATIVE_DESC=		Backend(s) for this architecture (${_NATIVE_BACKENDS})
 BE_NATIVE_CMAKE_ON=	-DLLVM_TARGETS_TO_BUILD="${NATIVE_BACKENDS:ts;}"
 BE_STANDARD_DESC=	All non-experimental backends
+BE_WASM_DESC=		WebAssembly backend (required by firefox via wasi)
 .for BE in FREEBSD NATIVE STANDARD
 BE_${BE}_PLIST_FILES=	${_BE_LIBS_${BE}:O:S/$/.a/:S|^|${LLVM_DIR}/lib/libLLVM|}
 .endfor
@@ -339,6 +340,10 @@ NATIVE_BACKENDS=	${_NATIVE_BACKENDS}
 FREEBSD_BACKENDS+=	AMDGPU
 NATIVE_BACKENDS+=	AMDGPU
 .endif
+.if ${PORT_OPTIONS:MBE_WASM}
+FREEBSD_BACKENDS+=	WebAssembly
+NATIVE_BACKENDS+=	WebAssembly
+.endif
 STANDARD_BACKENDS=	${_FREEBSD_BACKENDS} AMDGPU AVR BPF Hexagon Lanai \
 			MSP430 NVPTX SystemZ WebAssembly XCore
 _BE_LIBS_COMMON=	CodeGen Desc Info

devel/llvm13/Makefile

 PORTNAME=	llvm
 DISTVERSION=	13.0.0
-PORTREVISION=	2
+PORTREVISION=	3
 CATEGORIES=	devel lang
 MASTER_SITES=	https://github.com/llvm/llvm-project/releases/download/llvmorg-${DISTVERSION:S/rc/-rc/}/ \
 		https://${PRE_}releases.llvm.org/${LLVM_RELEASE}/${RCDIR}
@@ -82,7 +82,7 @@ CMAKE_ARGS+=	-DLLVM_ENABLE_TERMINFO=OFF
 CFLAGS+=	-DNDEBUG
 CXXFLAGS+=	-DNDEBUG
 
-OPTIONS_DEFINE=	BE_AMDGPU CLANG DOCS EXTRAS FLANG LIT LLD LLDB MLIR PYCLANG
+OPTIONS_DEFINE=	BE_AMDGPU BE_WASM CLANG DOCS EXTRAS FLANG LIT LLD LLDB MLIR PYCLANG
 OPTIONS_DEFINE_aarch64=	OPENMP
 OPTIONS_DEFINE_amd64=	COMPILER_RT GOLD OPENMP
 OPTIONS_DEFINE_i386=	COMPILER_RT OPENMP
@@ -90,7 +90,7 @@ OPTIONS_DEFINE_powerpc=	GOLD
 OPTIONS_DEFINE_powerpc64=	GOLD OPENMP
 OPTIONS_DEFINE_powerpc64le=	GOLD OPENMP
 OPTIONS_DEFINE_riscv64=	OPENMP
-OPTIONS_DEFAULT=	BE_AMDGPU BE_STANDARD CLANG EXTRAS FLANG LIT LLD LLDB MLIR PYCLANG
+OPTIONS_DEFAULT=	BE_AMDGPU BE_STANDARD BE_WASM CLANG EXTRAS FLANG LIT LLD LLDB MLIR PYCLANG
 OPTIONS_DEFAULT_aarch64=	OPENMP
 OPTIONS_DEFAULT_amd64=	COMPILER_RT GOLD OPENMP
 OPTIONS_DEFAULT_i386=	COMPILER_RT OPENMP
@@ -114,6 +114,7 @@ BE_FREEBSD_CMAKE_ON=	-DLLVM_TARGETS_TO_BUILD="${FREEBSD_BACKENDS:ts;}"
 BE_NATIVE_DESC=		Backend(s) for this architecture (${_NATIVE_BACKENDS})
 BE_NATIVE_CMAKE_ON=	-DLLVM_TARGETS_TO_BUILD="${NATIVE_BACKENDS:ts;}"
 BE_STANDARD_DESC=	All non-experimental backends
+BE_WASM_DESC=		WebAssembly backend (required by firefox via wasi)
 .for BE in FREEBSD NATIVE STANDARD
 BE_${BE}_PLIST_FILES=	${_BE_LIBS_${BE}:O:S/$/.a/:S|^|${LLVM_DIR}/lib/libLLVM|}
 .endfor
@@ -376,6 +377,10 @@ NATIVE_BACKENDS=	${_NATIVE_BACKENDS}
 FREEBSD_BACKENDS+=	AMDGPU
 NATIVE_BACKENDS+=	AMDGPU
 .endif
+.if ${PORT_OPTIONS:MBE_WASM}
+FREEBSD_BACKENDS+=	WebAssembly
+NATIVE_BACKENDS+=	WebAssembly
+.endif
 STANDARD_BACKENDS=	${_FREEBSD_BACKENDS} AMDGPU AVR BPF Hexagon Lanai \
 			MSP430 NVPTX SystemZ WebAssembly XCore
 _BE_LIBS_COMMON=	CodeGen Desc Info