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/*
bug-932.c
For a basic block that consists of only a call two al __smallc function with at least two parameters,
the sch pointer of a basic block could be wrong, resulting in incorrect live-range for some corner cases,
which in turn for some corner cases could result in live-range separation incorrectly assuming an
iCode to be dead, which resulted in changes to the iCode that triggered a segfault in the z80 register allocator.
*/
#include <testfwk.h>
#ifdef __SDCC
#pragma disable_warning 85
#endif
int fg(void *fp)
{
volatile int i = 1;
return i;
}
extern int fp(int c, void *fp) __smallc
{
return -1;
}
void *infile, *outfile;
static unsigned long int textsize = 0;
int error;
static void Error(const char *message)
{
error++;
}
#define THRESHOLD 2
static int DecodeChar(void)
{
volatile int i = 255;
return i;
}
static void Decode(void)
{
int j, k, c;
unsigned long int count;
textsize = fg(infile);
for (count = 0; count < textsize; ) {
c = DecodeChar();
if (c < 256) {
if (fp(c, outfile) == -1) {
Error("");
}
count++;
} else {
j = c - 255 + THRESHOLD;
for (k = 0; k < j; k++) {
count++;
}
}
}
}
void testBug(void)
{
error = 0;
Decode();
ASSERT (error == 1);
}
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