* [Bug target/34434] internal compiler error: in insert_save, at caller-save.c:725
[not found] <bug-34434-4@http.gcc.gnu.org/bugzilla/>
2012-01-28 4:00 ` [Bug target/34434] internal compiler error: in insert_save, at caller-save.c:725 pinskia at gcc dot gnu.org
@ 2012-01-28 4:07 ` pinskia at gcc dot gnu.org
1 sibling, 0 replies; 2+ messages in thread
From: pinskia at gcc dot gnu.org @ 2012-01-28 4:07 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34434
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Known to work| |4.3.5
Host|x86_64-linux-gnu |
Resolution| |FIXED
Target Milestone|--- |4.3.5
Build|x86_64-linux-gnu |
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-01-28 03:53:51 UTC ---
Fixed in 4.3.5.
Reduced testcase:
typedef unsigned long Word_t;
typedef struct struct_vproc VProc_t;
struct struct_vproc {
unsigned long globNextW;
unsigned long globLimit;
};
void GetChunkForVProc ();
static inline Word_t CompareAndSwapWord (Word_t *ptr, Word_t old, Word_t new)
{
register Word_t result __asm__ ("%rax");
__asm__ __volatile__ ( "movq %2,%%rbx\n\t": "=m" (*ptr): "g" (old), "g"
(new): "memory", "%rax");
return result;
}
void StartGlobalGC (VProc_t *vp, unsigned long **scanPtr, Word_t *scanTop)
{
GetChunkForVProc (0);
do
{
Word_t hdr = *scanPtr++;
if (isMixedHdr(hdr))
{
int len = GetVectorLen(hdr);
for (int i = 0; i < len; i++, scanPtr++)
{
Word_t *v = *scanPtr;
if (isPtr(v)&& AddrToChunk() == 0)
{
Word_t oldHdr = v[-1];
if (isForwardPtr(oldHdr))
{
Word_t *nextW = (Word_t *)vp->globNextW;
int len = GetLength(oldHdr);
if (nextW >= (Word_t *)(vp->globLimit))
nextW = (Word_t *)vp->globNextW;
Word_t hdr = CompareAndSwapWord(v-1, oldHdr, nextW);
nextW[-1] = hdr;
}
}
}
}
}
while (scanPtr < scanTop);
}
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