1 // RUN: %clang_cc1 -w -emit-llvm %s  -o /dev/null
2 
3 /* These are random tests that I used when working on the GCC frontend
4    originally. */
5 
6 // test floating point comparison!
7 int floatcomptest(double *X, double *Y, float *x, float *y) {
8   return *X < *Y || *x < *y;
9 }
10 
11 extern void *malloc(unsigned);
12 
13 // Exposed a bug
14 void *memset_impl(void *dstpp, int c, unsigned len) {
15   long long int dstp = (long long int) dstpp;
16 
17   while (dstp % 4 != 0)
18     {
19       ((unsigned char *) dstp)[0] = c;
20       dstp += 1;
21       len -= 1;
22     }
23   return dstpp;
24 }
25 
26 // TEST problem with signed/unsigned versions of the same constants being shared
27 // incorrectly!
28 //
29 static char *temp;
30 static int remaining;
31 static char *localmalloc(int size) {
32   char *blah;
33 
34   if (size>remaining)
35     {
36       temp = (char *) malloc(32768);
37       remaining = 32768;
38       return temp;
39     }
40   return 0;
41 }
42 
43 typedef struct { double X; double Y; int Z; } PBVTest;
44 
45 PBVTest testRetStruct(float X, double Y, int Z) {
46   PBVTest T = { X, Y, Z };
47   return T;
48 }
49 PBVTest testRetStruct2(void);  // external func no inlining
50 
51 
52 double CallRetStruct(float X, double Y, int Z) {
53   PBVTest T = testRetStruct2();
54   return T.X+X+Y+Z;
55 }
56 
57 
58