llvm-6502/test/FrontendC/2002-07-14-MiscTests.c

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// RUN: %llvmgcc -S %s -o - | llvm-as -f -o /dev/null
/* These are random tests that I used when working on the GCC frontend
originally. */
// test floating point comparison!
int floatcomptest(double *X, double *Y, float *x, float *y) {
return *X < *Y || *x < *y;
}
extern void *malloc(unsigned);
// Exposed a bug
void *memset_impl(void *dstpp, int c, unsigned len) {
long long int dstp = (long long int) dstpp;
while (dstp % 4 != 0)
{
((unsigned char *) dstp)[0] = c;
dstp += 1;
len -= 1;
}
return dstpp;
}
// TEST problem with signed/unsigned versions of the same constants being shared
// incorrectly!
//
static char *temp;
static int remaining;
static char *localmalloc(int size) {
char *blah;
if (size>remaining)
{
temp = (char *) malloc(32768);
remaining = 32768;
return temp;
}
return 0;
}
typedef struct { double X; double Y; int Z; } PBVTest;
PBVTest testRetStruct(float X, double Y, int Z) {
PBVTest T = { X, Y, Z };
return T;
}
PBVTest testRetStruct2(void); // external func no inlining
double CallRetStruct(float X, double Y, int Z) {
PBVTest T = testRetStruct2();
return T.X+X+Y+Z;
}