компилятор с использованием Flex, Bison и LLVM

$ git clone https://github.com/lsegal/my_toy_compiler
Cloning into my_toy_compiler...
remote: Counting objects: 63, done.
remote: Compressing objects: 100% (35/35), done.
remote: Total 63 (delta 35), reused 51 (delta 27)
Unpacking objects: 100% (63/63), done.
$ cd my_toy_compiler
$ ls
codegen.cpp  example.txt  Makefile  parser.y
codegen.h    main.cpp     node.h    tokens.l
$ make all
bison -d -o parser.cpp parser.y
parser.y: конфликты: 24 сдвига/вывода
g++ -c `llvm-config --cppflags core jit native` -o parser.o parser.cpp
g++ -c `llvm-config --cppflags core jit native` -o codegen.o codegen.cpp
g++ -c `llvm-config --cppflags core jit native` -o main.o main.cpp
flex -o tokens.cpp tokens.l parser.hpp
g++ -c `llvm-config --cppflags core jit native` -o tokens.o tokens.cpp
g++ -o parser `llvm-config --ldflags core jit native` parser.o codegen.o main.o tokens.o  `llvm-config --libs core jit native`
$ ls
codegen.cpp  example.txt  Makefile  parser.cpp  parser.y    tokens.o
codegen.h    main.cpp     node.h    parser.hpp  tokens.cpp
codegen.o    main.o       parser    parser.o    tokens.l
$ echo "int fn(int a, int b) { a * 2 + b * 4 }" | ./parser
0x8eaa3c0
Generating code...
Generating code for 20NFunctionDeclaration
Creating variable declaration int a
Creating variable declaration int b
Generating code for 20NExpressionStatement
Generating code for 15NBinaryOperator
Creating binary operation 276
Creating binary operation 274
Creating binary operation 276
Creating integer: 4
Creating identifier reference: b
Creating integer: 2
Creating identifier reference: a
Creating block
Creating function: fn
Creating block
Code is generated.
; ModuleID = 'main'

define internal void @main() {
entry:
  ret void
}

define internal i64 @fn(i64, i64) {
entry:
  %a = alloca i64
  %b = alloca i64
  %2 = load i64* %b
  %3 = mul i64 %2, 4
  %4 = add i64 2, %3
  %5 = load i64* %a
  %6 = mul i64 %5, %4
  ret void
}
Running code...
Code was run.