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Add chibicc

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This program popped up on Hacker News recently. It's the only modern
compiler I've ever seen that doesn't have dependencies and is easily
modified. So I added all of the missing GNU extensions I like to use
which means it might be possible soon to build on non-Linux and have
third party not vendor gcc binaries.
This commit is contained in:
Justine Tunney 2020-12-05 12:20:41 -08:00
parent e44a0cf6f8
commit 8da931a7f6
298 changed files with 19493 additions and 11950 deletions
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202
third_party/chibicc/test/pointer_test.c vendored Normal file
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#include "third_party/chibicc/test/test.h"
int main() {
ASSERT(3, ({
int x = 3;
*&x;
}));
ASSERT(3, ({
int x = 3;
int *y = &x;
int **z = &y;
**z;
}));
ASSERT(5, ({
int x = 3;
int y = 5;
*(&x + 1);
}));
ASSERT(3, ({
int x = 3;
int y = 5;
*(&y - 1);
}));
ASSERT(5, ({
int x = 3;
int y = 5;
*(&x - (-1));
}));
ASSERT(5, ({
int x = 3;
int *y = &x;
*y = 5;
x;
}));
ASSERT(7, ({
int x = 3;
int y = 5;
*(&x + 1) = 7;
y;
}));
ASSERT(7, ({
int x = 3;
int y = 5;
*(&y - 2 + 1) = 7;
x;
}));
ASSERT(5, ({
int x = 3;
(&x + 2) - &x + 3;
}));
ASSERT(8, ({
int x, y;
x = 3;
y = 5;
x + y;
}));
ASSERT(8, ({
int x = 3, y = 5;
x + y;
}));
ASSERT(3, ({
int x[2];
int *y = &x;
*y = 3;
*x;
}));
ASSERT(3, ({
int x[3];
*x = 3;
*(x + 1) = 4;
*(x + 2) = 5;
*x;
}));
ASSERT(4, ({
int x[3];
*x = 3;
*(x + 1) = 4;
*(x + 2) = 5;
*(x + 1);
}));
ASSERT(5, ({
int x[3];
*x = 3;
*(x + 1) = 4;
*(x + 2) = 5;
*(x + 2);
}));
ASSERT(0, ({
int x[2][3];
int *y = x;
*y = 0;
**x;
}));
ASSERT(1, ({
int x[2][3];
int *y = x;
*(y + 1) = 1;
*(*x + 1);
}));
ASSERT(2, ({
int x[2][3];
int *y = x;
*(y + 2) = 2;
*(*x + 2);
}));
ASSERT(3, ({
int x[2][3];
int *y = x;
*(y + 3) = 3;
**(x + 1);
}));
ASSERT(4, ({
int x[2][3];
int *y = x;
*(y + 4) = 4;
*(*(x + 1) + 1);
}));
ASSERT(5, ({
int x[2][3];
int *y = x;
*(y + 5) = 5;
*(*(x + 1) + 2);
}));
ASSERT(3, ({
int x[3];
*x = 3;
x[1] = 4;
x[2] = 5;
*x;
}));
ASSERT(4, ({
int x[3];
*x = 3;
x[1] = 4;
x[2] = 5;
*(x + 1);
}));
ASSERT(5, ({
int x[3];
*x = 3;
x[1] = 4;
x[2] = 5;
*(x + 2);
}));
ASSERT(5, ({
int x[3];
*x = 3;
x[1] = 4;
x[2] = 5;
*(x + 2);
}));
ASSERT(5, ({
int x[3];
*x = 3;
x[1] = 4;
2 [x] = 5;
*(x + 2);
}));
ASSERT(0, ({
int x[2][3];
int *y = x;
y[0] = 0;
x[0][0];
}));
ASSERT(1, ({
int x[2][3];
int *y = x;
y[1] = 1;
x[0][1];
}));
ASSERT(2, ({
int x[2][3];
int *y = x;
y[2] = 2;
x[0][2];
}));
ASSERT(3, ({
int x[2][3];
int *y = x;
y[3] = 3;
x[1][0];
}));
ASSERT(4, ({
int x[2][3];
int *y = x;
y[4] = 4;
x[1][1];
}));
ASSERT(5, ({
int x[2][3];
int *y = x;
y[5] = 5;
x[1][2];
}));
return 0;
}