华东师范大学编译原理期末项目

East China Normal University Compiler Design Final Project

环境

Environment

llvm-dev

opt

llvm-link

gflags

编译

Build

cmake -B build -G Ninja -DCMAKE_BUILD_TYPE=Release && cd build && ninja

使用

Use

Usage: ./compiler [options]

Generates binary executables by default

Options:

-c source file

-o output file

-O optimize

-C output bitcode IR

-S output text IR

-s output assembly

-help show help message

-version show version

例子

Example

int i=10;
int j=100;
int n=1;
int sum=0;
int mult=1;
{
while (i>0) {n=n+1;i=i-1;}
if (j>=50) then sum=sum+j; else {mult=mult*(j+1);sum=sum+i;}
if (i<=10) then sum=sum-i; else mult=mult+i/2;
if (i==j) then sum=sum-j; else mult=mult-j/2;
if (n>1) then n=n-1; else n=n+1;
if (n<2) then n=n+2; else n=n-2;
}

./compiler -c a.toy -o a -O

./a

Output:

i: 0

j: 100

mult: -49

n: 8

sum: 100