On Sun, Jan 22, 2012 at 3:52 PM, Andreas Schwab <sch...@linux-m68k.org> wrote: > The java frontend wants that floating point operations are assumed to > never trap, thus clears flag_trapping_math in java_init_options_struct. > But this is no longer effective after revision 165823, because > set_fast_math_flags is now always called during option processing, > overriding anything what the frontend did to flag_trapping_math. This > is an amendment to revision 169930 which introduced > frontend_set_flag_trapping_math, but didn't set it in > java_init_options_struct. > > While this was found during examination of PR49847, this doesn't fix it, > but only makes the bug dormant again in 4.6. > > Tested on powerpc-linux, ok for trunk and 4.6 branch?
Ok. Thanks, Richard. > Andreas. > > 2012-01-22 Andreas Schwab <sch...@linux-m68k.org> > > * lang.c (java_init_options_struct): Set > frontend_set_flag_trapping_math. > > diff --git a/gcc/java/lang.c b/gcc/java/lang.c > index ccab48c..da7dd05 100644 > --- a/gcc/java/lang.c > +++ b/gcc/java/lang.c > @@ -1,6 +1,6 @@ > /* Java(TM) language-specific utility routines. > Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, > - 2005, 2006, 2007, 2008, 2010 Free Software Foundation, Inc. > + 2005, 2006, 2007, 2008, 2010, 2012 Free Software Foundation, Inc. > > This file is part of GCC. > > @@ -550,6 +550,7 @@ java_init_options_struct (struct gcc_options *opts) > > /* In Java floating point operations never trap. */ > opts->x_flag_trapping_math = 0; > + opts->frontend_set_flag_trapping_math = true; > > /* In Java arithmetic overflow always wraps around. */ > opts->x_flag_wrapv = 1; > -- > 1.7.8.4 > > -- > Andreas Schwab, sch...@linux-m68k.org > GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5 > "And now for something completely different."
