I installed MPC 0.8 on Linux/ia32 and Linux/x86-64. With revision 154212, I got
FAIL: gcc.dg/torture/builtin-math-7.c -O2 -flto execution test FAIL: gcc.dg/torture/builtin-math-7.c -O2 -fwhopr execution test -- Summary: gcc.dg/torture/builtin-math-7.c failed Product: gcc Version: 4.5.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: lto AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: hjl dot tools at gmail dot com http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42074