From e9c0f6846cf911fdb2c166249c965ccbf1a3923c Mon Sep 17 00:00:00 2001
From: _xeroxz <xerox@back.engineering>
Date: Thu, 5 Aug 2021 01:26:06 -0700
Subject: [PATCH] llvm is submoduled finally... cmake -B build works... good
 night

---
 CMakeLists.txt |  7 +++++-
 cmake.toml     |  7 +++++-
 src/main.cpp   | 65 ++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 77 insertions(+), 2 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4d3b943..31f16ad 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -67,11 +67,16 @@ target_compile_definitions(vmdevirt PRIVATE
 
 target_include_directories(vmdevirt PRIVATE
 	include
+	"dependencies/llvm/llvm/include/"
+	"build/dependencies/llvm/llvm/include/"
 )
 
 target_link_libraries(vmdevirt PRIVATE
-	LLVM
 	vmprofiler
+	LLVMCore
+	LLVMCodeGen
+	LLVMSupport
+	LLVMLinker
 )
 
 unset(CMKR_TARGET)
diff --git a/cmake.toml b/cmake.toml
index 848efd9..d1e3021 100644
--- a/cmake.toml
+++ b/cmake.toml
@@ -11,10 +11,15 @@ sources = [
 ]
 include-directories = [
     "include",
+    "dependencies/llvm/llvm/include/",
+    "build/dependencies/llvm/llvm/include/",
 ]
 link-libraries = [
-    "LLVM",
     "vmprofiler",
+    "LLVMCore",
+    "LLVMCodeGen",
+    "LLVMSupport",
+    "LLVMLinker"
 ]
 compile-definitions = [
     "NOMINMAX"
diff --git a/src/main.cpp b/src/main.cpp
index e69de29..8dace86 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -0,0 +1,65 @@
+#include "llvm/Bitcode/BitcodeWriter.h"
+#include "llvm/IR/CallingConv.h"
+#include "llvm/IR/Function.h"
+#include "llvm/IR/IRBuilder.h"
+#include "llvm/IR/IRPrintingPasses.h"
+#include "llvm/IR/LegacyPassManager.h"
+#include "llvm/IR/Module.h"
+#include "llvm/IR/PassManager.h"
+#include "llvm/IR/Verifier.h"
+#include "llvm/Pass.h"
+#include "llvm/Support/raw_ostream.h"
+#include <stdio.h>
+
+using namespace llvm;
+Module *makeLLVMModule( LLVMContext &Context );
+
+int main( int argc, char **argv )
+{
+    LLVMContext Context;
+    Module *Mod = makeLLVMModule( Context );
+
+    raw_fd_ostream r( fileno( stdout ), false );
+    verifyModule( *Mod, &r );
+
+    // Prints the module IR
+    ModulePass *m = createPrintModulePass( outs(), "Module IR printer" );
+    legacy::PassManager PM;
+    PM.add( m );
+    PM.run( *Mod );
+
+    // Write IR to a bitcode file
+    FILE *mul_add_file = fopen( "mul_add.bc", "w+" );
+    raw_fd_ostream bitcodeWriter( fileno( mul_add_file ), true );
+    WriteBitcodeToFile( *Mod, bitcodeWriter );
+
+    delete Mod;
+    return 0;
+}
+
+Module *makeLLVMModule( LLVMContext &Context )
+{
+    Module *mod = new Module( "mul_add", Context );
+
+    FunctionCallee mul_add_fun =
+        mod->getOrInsertFunction( "mul_add", Type::getInt32Ty( Context ), Type::getInt32Ty( Context ),
+                                  Type::getInt32Ty( Context ), Type::getInt32Ty( Context ) );
+    Function *mul_add = cast< Function >( mul_add_fun.getCallee() );
+
+    mul_add->setCallingConv( CallingConv::C );
+    Function::arg_iterator args = mul_add->arg_begin();
+    Value *x = args++;
+    x->setName( "x" );
+    Value *y = args++;
+    y->setName( "y" );
+    Value *z = args++;
+    z->setName( "z" );
+
+    BasicBlock *block = BasicBlock::Create( Context, "entry", mul_add );
+    IRBuilder<> builder( block );
+    Value *tmp = builder.CreateBinOp( Instruction::Mul, x, y, "tmp" );
+    Value *tmp2 = builder.CreateBinOp( Instruction::Add, tmp, z, "tmp2" );
+    builder.CreateRet( tmp2 );
+
+    return mod;
+}
\ No newline at end of file