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test.sh
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#!/bin/bash -eu
cd $(dirname $0)
cargo test
cargo build
cat <<EOF | gcc -xc -c -o tmp2.o -
#include <stdio.h>
#include <stdlib.h>
int ret3() { return 3; }
int ret5() { return 5; }
int add(int x, int y) { return x+y; }
int sub(int x, int y) { return x-y; }
int add6(int a, int b, int c, int d, int e, int f) {
return a+b+c+d+e+f;
}
EOF
assert() {
expected="$1"
input="$2"
./target/debug/pcc "$input" > tmp.s
cc -no-pie -o tmp tmp.s tmp2.o
set +e
./tmp
actual="$?"
set -e
if [ "$actual" = "$expected" ]; then
echo "$input => $actual"
else
echo "$input => $expected expected, but got $actual"
exit 1
fi
}
echo "===== E2E testing ====="
assert 0 "int main() { return 0; }"
assert 42 "int main() { return 42; }"
assert 5 "int main() { return 5; return 8; }"
assert 21 "int main() { return 5+20-4; }"
assert 41 "int main() { return 12 + 34 - 5 ; }"
assert 47 "int main() { return 5+6*7; }"
assert 15 "int main() { return 5*(9-6); }"
assert 4 "int main() { return (3+5)/2; }"
assert 3 "int main() { return +1+2; }"
assert 10 "int main() { return -10+20; }"
assert 0 "int main() { return 0==1; }"
assert 1 "int main() { return 42==42; }"
assert 1 "int main() { return 0!=1; }"
assert 0 "int main() { return 42!=42; }"
assert 1 "int main() { return 0<1; }"
assert 0 "int main() { return 1<1; }"
assert 0 "int main() { return 2<1; }"
assert 1 "int main() { return 0<=1; }"
assert 1 "int main() { return 1<=1; }"
assert 0 "int main() { return 2<=1; }"
assert 1 "int main() { return 1>0; }"
assert 0 "int main() { return 1>1; }"
assert 0 "int main() { return 1>2; }"
assert 1 "int main() { return 1>=0; }"
assert 1 "int main() { return 1>=1; }"
assert 0 "int main() { return 1>=2; }"
assert 3 "int main() { int a=3; return a; }"
assert 8 "int main() { int a=3; int z=5; return a+z; }"
assert 6 "int main() { int a; int b; a=b=3; return a+b; }"
assert 6 "int main() { int foo=1; int bar=2+3; return foo+bar; }"
assert 3 "int main() { {1; {2;} return 3;} }"
assert 3 "int main() { if (0) return 2; return 3; }"
assert 3 "int main() { if (1-1) return 2; return 3; }"
assert 2 "int main() { if (1) return 2; return 3; }"
assert 2 "int main() { if (2-1) return 2; return 3; }"
assert 10 "int main() { int i=0; while(i<10) i=i+1; return i; }"
assert 55 "int main() { int i=0; int j=0; while(i<=10) {j=i+j; i=i+1;} return j; }"
assert 55 "int main() { int i=0; int j=0; for (i=0; i<=10; i=i+1) j=i+j; return j; }"
assert 3 "int main() { for (;;) return 3; return 5; }"
assert 3 "int main() { return ret3(); }"
assert 5 "int main() { return ret5(); }"
assert 8 "int main() { return add(3, 5); }"
assert 2 "int main() { return sub(5, 3); }"
assert 21 "int main() { return add6(1,2,3,4,5,6); }"
assert 32 "int main() { return ret32(); } int ret32() { return 32; }"
assert 7 "int main() { return add2(3,4); } int add2(int x,int y) { return x+y; }"
assert 1 "int main() { return sub2(4,3); } int sub2(int x,int y) { return x-y; }"
assert 55 "int main() { return fib(9); } int fib(int x) { if (x<=1) return 1; return fib(x-1) + fib(x-2); }"
assert 3 "int main() { int x=3; return *&x; }"
assert 3 "int main() { int x=3; int *y=&x; int **z=&y; return **z; }"
assert 5 "int main() { int x=3; int y=5; return *(&x-1); }"
assert 3 "int main() { int x=3; int y=5; return *(&y+1); }"
assert 5 "int main() { int x=3; int *y=&x; *y=5; return x; }"
assert 1 "int main() { int a; a=1; int *p; p=&a; return *p; }"
assert 8 'int main() { int x=3; int y=5; return foo(&x,y); } int foo(int *x, int y) { return *x+y; }'
assert 8 'int main() { int x; return sizeof(x); }'
assert 8 'int main() { int x; return sizeof x; }'
assert 8 'int main() { int* x; return sizeof x; }'
assert 8 'int main() { int** x; return sizeof x; }'
assert 3 'int main() { int x[2]; int *y=&x; *y=3; return *x; }'
assert 3 'int main() { int x[3]; *x=3; *(x+1)=4; *(x+2)=5; return *x; }'
assert 4 'int main() { int x[3]; *x=3; *(x+1)=4; *(x+2)=5; return *(x+1); }'
assert 5 'int main() { int x[3]; *x=3; *(x+1)=4; *(x+2)=5; return *(x+2); }'
assert 0 'int main() { int x[2][3]; int *y=x; *y=0; return **x; }'
assert 1 'int main() { int x[2][3]; int *y=x; *(y+1)=1; return *(*x+1); }'
assert 2 'int main() { int x[2][3]; int *y=x; *(y+2)=2; return *(*x+2); }'
assert 3 'int main() { int x[2][3]; int *y=x; *(y+3)=3; return **(x+1); }'
assert 4 'int main() { int x[2][3]; int *y=x; *(y+4)=4; return *(*(x+1)+1); }'
assert 5 'int main() { int x[2][3]; int *y=x; *(y+5)=5; return *(*(x+1)+2); }'
assert 6 'int main() { int x[2][3]; int *y=x; *(y+6)=6; return **(x+2); }'
assert 3 'int main() { int x[3]; *x=3; x[1]=4; x[2]=5; return *x; }'
assert 4 'int main() { int x[3]; *x=3; x[1]=4; x[2]=5; return *(x+1); }'
assert 5 'int main() { int x[3]; *x=3; x[1]=4; x[2]=5; return *(x+2); }'
assert 5 'int main() { int x[3]; *x=3; x[1]=4; x[2]=5; return *(x+2); }'
assert 5 'int main() { int x[3]; *x=3; x[1]=4; 2[x]=5; return *(x+2); }'
assert 0 'int main() { int x[2][3]; int *y=x; *y=0; return **x; }'
assert 1 'int main() { int x[2][3]; int *y=x; *(y+1)=1; return *(*x+1); }'
assert 2 'int main() { int x[2][3]; int *y=x; *(y+2)=2; return *(*x+2); }'
assert 3 'int main() { int x[2][3]; int *y=x; *(y+3)=3; return **(x+1); }'
assert 4 'int main() { int x[2][3]; int *y=x; *(y+4)=4; return *(*(x+1)+1); }'
assert 5 'int main() { int x[2][3]; int *y=x; *(y+5)=5; return *(*(x+1)+2); }'
assert 6 'int main() { int x[2][3]; int *y=x; *(y+6)=6; return **(x+2); }'
assert 0 'int x; int main() { return x; }'
assert 3 'int x; int main() { x=3; return x; }'
assert 0 'int x[4]; int main() { x[0]=0; x[1]=1; x[2]=2; x[3]=3; return x[0]; }'
assert 1 'int x[4]; int main() { x[0]=0; x[1]=1; x[2]=2; x[3]=3; return x[1]; }'
assert 2 'int x[4]; int main() { x[0]=0; x[1]=1; x[2]=2; x[3]=3; return x[2]; }'
assert 3 'int x[4]; int main() { x[0]=0; x[1]=1; x[2]=2; x[3]=3; return x[3]; }'
assert 8 'int x; int main() { return sizeof(x); }'
assert 32 'int x[4]; int main() { return sizeof(x); }'
assert 1 'int main() { char x=1; return x; }'
assert 1 'int main() { char x=1; char y=2; return x; }'
assert 2 'int main() { char x=1; char y=2; return y; }'
assert 1 'int main() { char x; return sizeof(x); }'
assert 10 'int main() { char x[10]; return sizeof(x); }'
assert 1 'int main() { return sub_char(7, 3, 3); } int sub_char(char a, char b, char c) { return a-b-c; }'
assert 97 'int main() { return "abc"[0]; }'
assert 98 'int main() { return "abc"[1]; }'
assert 99 'int main() { return "abc"[2]; }'
assert 0 'int main() { return "abc"[3]; }'
assert 4 'int main() { return sizeof("abc"); }'
echo -e "\e[32mAll tests passed!\e[0m"