rt_gccstream/gcc/testsuite/gcc.dg/20040916-1.c

46 lines
828 B
C

/* { dg-do compile } */
/* { dg-options "-O2" } */
/* PR17513 - we hit a bug where EDGE_EXECUTABLE was not cleared on
successors of the entry block. This lead to a flow verification
error much later in the compilation (after gcse). */
typedef unsigned char uint8;
typedef unsigned int uint32;
uint32 marker = 0;
uint8 *buff = 0;
uint32 bsize = 0;
extern int foo (void);
uint32
bar (void)
{
int len, d;
for (;;)
{
if (foo () == 0)
return (0);
switch (marker)
{
case 0xfe:
{
len |= (*buff++);
bsize -= 2;
while (len > 0)
{
d = *buff++;
len--;
}
}
break;
default:
break;
}
}
}