I use
$ ~/gcc/bin/gcc --version
gcc (GCC) 4.3.0 20070307 (experimental)
to compile
double rdtsc_cputick;
double
rdtsc ()
{
unsigned long eax, edx;
asm volatile ("rdtsc" : "=a" (eax), "=d" (edx));
return rdtsc_cputick * ((unsigned long long) edx << 32 | eax);
}
and I receive the error
$ ~/gcc/bin/gcc -c rdtsc.c -march=prescott
rdtsc.c: In function rdtsc:
rdtsc.c:9: internal compiler error: in gen_split_1956, at
config/i386/sse.md:128
--
Summary: ICE with double and unsigned long long with -
march=prescott
Product: gcc
Version: 4.3.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: schnetter at aei dot mpg dot de
GCC build triplet: i386-apple-darwin8.8.1
GCC host triplet: i386-apple-darwin8.8.1
GCC target triplet: i386-apple-darwin8.8.1
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31076