RV integration as an LLVM component

Author: Simon Moll

.gitmodules

@@ -0,0 +1,4 @@
+[submodule "llvm/lib/rv"]
+	path = llvm/lib/rv
+	url = https://github.com/sx-aurora-dev/rv.git
+	branch = hpce/develop

llvm/CMakeLists.txt

@@ -1026,6 +1026,8 @@ if(LLVM_TARGET_IS_CROSSCOMPILE_HOST)
 # (this is a variable that CrossCompile sets on recursive invocations)
 endif()
 
+include_directories("${CMAKE_SOURCE_DIR}/lib/rv/include")
+
 if( ${CMAKE_SYSTEM_NAME} MATCHES SunOS )
    # special hack for Solaris to handle crazy system sys/regset.h
    include_directories("${LLVM_MAIN_INCLUDE_DIR}/llvm/Support/Solaris")

llvm/lib/CMakeLists.txt

@@ -37,6 +37,7 @@ add_subdirectory(Passes)
 add_subdirectory(TextAPI)
 add_subdirectory(ToolDrivers)
 add_subdirectory(XRay)
+add_subdirectory(rv)
 
 if (LLVM_INCLUDE_TESTS)
   add_subdirectory(Testing)

llvm/lib/Passes/CMakeLists.txt

@@ -27,4 +27,5 @@ add_llvm_component_library(LLVMPasses
   TransformUtils
   Vectorize
   Instrumentation
+  RV
   )

llvm/lib/Passes/PassBuilder.cpp

@@ -247,6 +247,8 @@
 #include "llvm/Transforms/Vectorize/SLPVectorizer.h"
 #include "llvm/Transforms/Vectorize/VectorCombine.h"
 
+#include "rv/registerPasses.h"
+
 using namespace llvm;
 
 static const Regex DefaultAliasRegex(
@@ -410,6 +412,7 @@ PassBuilder::PassBuilder(TargetMachine *TM, PipelineTuningOptions PTO,
   PIC->addClassToPassName(decltype(CREATE_PASS)::name(), NAME);
 #include "PassRegistry.def"
   }
+  rv::addConfiguredRVPasses(*this);
 }
 
 void PassBuilder::registerModuleAnalyses(ModuleAnalysisManager &MAM) {