When compiling the following program with -O2, gcc gives an ICE "internal
compiler error: in trunc_int_for_mode, at explow.c:56".
Versions affected:
gcc (GCC) 4.4.3 20100127 (Red Hat 4.4.3-4)
gcc (GCC) 4.5.1 20100521 (prerelease)
================================================
static inline unsigned parity(unsigned x)
{
return (unsigned) __builtin_parity(x);
}
unsigned f(unsigned rpoly)
{
return parity(rpoly & 1) ^ parity(rpoly & 6);
}
================================================
--
Summary: __builtin_parity() causes ICE in trunc_int_for_mode()
Product: gcc
Version: 4.5.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: rtl-optimization
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: rainy6144 at gmail dot com
GCC build triplet: x86_64-unknown-linux-gnu
GCC host triplet: x86_64-unknown-linux-gnu
GCC target triplet: x86_64-unknown-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44481
