Add a way to skip the Go bindings tests even when Go is configured in

CMake.

The Go bindings tests in an unoptimized build take over 30 seconds for
me, making it the slowest test in 'check-llvm' by a factor of two.

I've only rigged this up fully to the CMake build. If someone is
interested in rigging it up to the autoconf build, they're welcome to do
so.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@247243 91177308-0d34-0410-b5e6-96231b3b80d8

CMakeLists.txt

@@ -338,6 +338,7 @@ option(LLVM_INCLUDE_EXAMPLES "Generate build targets for the LLVM examples" ON)
 option(LLVM_BUILD_TESTS
   "Build LLVM unit tests. If OFF, just generate build targets." OFF)
 option(LLVM_INCLUDE_TESTS "Generate build targets for the LLVM unit tests." ON)
+option(LLVM_INCLUDE_GO_TESTS "Include the Go bindings tests in test build targets." ON)
 
 option (LLVM_BUILD_DOCS "Build the llvm documentation." OFF)
 option (LLVM_INCLUDE_DOCS "Generate build targets for llvm documentation." ON)

test/Bindings/Go/lit.local.cfg

@@ -6,6 +6,9 @@ import sys
 if not 'go' in config.root.llvm_bindings:
     config.unsupported = True
 
+if config.root.include_go_tests != 'ON':
+    config.unsupported = True
+
 def find_executable(executable, path=None):
     if path is None:
         path = os.environ['PATH']

test/Makefile

@@ -134,6 +134,7 @@ lit.site.cfg: FORCE
 	@$(ECHOPATH) s!@OCAMLFLAGS@!$(addprefix -cclib ,$(LDFLAGS))!g >> lit.tmp
 	@$(ECHOPATH) s=@HAVE_OCAMLOPT@=$(HAVE_OCAMLOPT)=g >> lit.tmp
 	@$(ECHOPATH) s=@HAVE_OCAML_OUNIT@=$(HAVE_OCAML_OUNIT)=g >> lit.tmp
+	@$(ECHOPATH) s=@LLVM_INCLUDE_GO_TESTS@=ON=g >> lit.tmp
 	@$(ECHOPATH) s=@GO_EXECUTABLE@=$(GO)=g >> lit.tmp
 	@$(ECHOPATH) s!@HOST_CC@!$(CC)!g >> lit.tmp
 	@$(ECHOPATH) s!@HOST_CXX@!$(CXX)!g >> lit.tmp

test/lit.site.cfg.in

@@ -19,6 +19,7 @@ config.ocamlfind_executable = "@OCAMLFIND@"
 config.have_ocamlopt = "@HAVE_OCAMLOPT@"
 config.have_ocaml_ounit = "@HAVE_OCAML_OUNIT@"
 config.ocaml_flags = "@OCAMLFLAGS@"
+config.include_go_tests = "@LLVM_INCLUDE_GO_TESTS@"
 config.go_executable = "@GO_EXECUTABLE@"
 config.enable_shared = @ENABLE_SHARED@
 config.enable_assertions = @ENABLE_ASSERTIONS@