http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57144
Bug #: 57144 Summary: [4.9 regression] mpfr miscompiled after r198413 Classification: Unclassified Product: gcc Version: 4.9.0 Status: UNCONFIRMED Keywords: build Severity: normal Priority: P3 Component: tree-optimization AssignedTo: unassig...@gcc.gnu.org ReportedBy: sch...@linux-m68k.org CC: l...@gcc.gnu.org Depends on: 57124 Target: ia64-*-* r198413 is causing miscompilation of mpfr-2.4.2 on ia64, seen by a lot of failures in its testsuite, some are looping infinitely. This makes it impossible to bootstrap with an in-tree mpfr, because the fortran compiler hangs while calling mpfr_log10 from gfc_arith_init_1. The patch in <http://permalink.gmane.org/gmane.comp.gcc.patches/285076> does not help.