This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug tree-optimization/20963] [4.0/4.1 Regression] ICE tree check: expected value_handle, have addr_expr in value_exists_in_set_bitmap, at tree-ssa-pre.c:437
- From: "steven at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 12 Apr 2005 09:52:18 -0000
- Subject: [Bug tree-optimization/20963] [4.0/4.1 Regression] ICE tree check: expected value_handle, have addr_expr in value_exists_in_set_bitmap, at tree-ssa-pre.c:437
- References: <20050412082952.20963.marcus@jet.franken.de>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From steven at gcc dot gnu dot org 2005-04-12 09:52 -------
There is always a bigger fish - an a smaller test case:
struct sMCB {
unsigned char type;
};
extern void foo (void);
unsigned char mem_readb(char *pt) __attribute__((nothrow));
void DOS_FreeProcessMemory(unsigned short pspseg) {
while (1) {
if (pspseg)
foo ();
char *addr = (char*)(&((sMCB*)0)->type);
if (mem_readb(addr)==0x5a) break;
}
};
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20963