1 | // RUN: %clang_cc1 -emit-llvm %s -o %t |
2 | |
3 | /* Sparc is not C99-compliant */ |
4 | #if defined(sparc) || defined(__sparc__) || defined(__sparcv9) |
5 | |
6 | int main() { return 0; } |
7 | |
8 | #else /* sparc */ |
9 | |
10 | #define ESCAPE 2 |
11 | #define IMAGE_WIDTH 150 |
12 | #define IMAGE_HEIGHT 50 |
13 | #if 1 |
14 | #define IMAGE_SIZE 60 |
15 | #else |
16 | #define IMAGE_SIZE 5000 |
17 | #endif |
18 | #define START_X -2.1 |
19 | #define END_X 1.0 |
20 | #define START_Y -1.25 |
21 | #define MAX_ITER 100 |
22 | |
23 | #define step_X ((END_X - START_X)/IMAGE_WIDTH) |
24 | #define step_Y ((-START_Y - START_Y)/IMAGE_HEIGHT) |
25 | |
26 | #define I 1.0iF |
27 | |
28 | int putchar(char c); |
29 | |
30 | volatile double __complex__ accum; |
31 | |
32 | void mandel() { |
33 | int x, y, n; |
34 | for (y = 0; y < IMAGE_HEIGHT; ++y) { |
35 | for (x = 0; x < IMAGE_WIDTH; ++x) { |
36 | double __complex__ c = (START_X+x*step_X) + (START_Y+y*step_Y) * I; |
37 | double __complex__ z = 0.0; |
38 | |
39 | for (n = 0; n < MAX_ITER; ++n) { |
40 | z = z * z + c; |
41 | if (hypot(__real__ z, __imag__ z) >= ESCAPE) |
42 | break; |
43 | } |
44 | |
45 | if (n == MAX_ITER) |
46 | putchar(' '); |
47 | else if (n > 6) |
48 | putchar('.'); |
49 | else if (n > 3) |
50 | putchar('+'); |
51 | else if (n > 2) |
52 | putchar('x'); |
53 | else |
54 | putchar('*'); |
55 | } |
56 | putchar('\n'); |
57 | } |
58 | } |
59 | |
60 | int main() { |
61 | mandel(); |
62 | return 0; |
63 | } |
64 | |
65 | #endif /* sparc */ |
66 | |