Mercurial > hg > CbC > CbC_gcc
diff gcc/real.c @ 67:f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
| author | nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> |
|---|---|
| date | Tue, 22 Mar 2011 17:18:12 +0900 |
| parents | b7f97abdc517 |
| children | 04ced10e8804 |
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--- a/gcc/real.c Tue May 25 18:58:51 2010 +0900 +++ b/gcc/real.c Tue Mar 22 17:18:12 2011 +0900 @@ -1,6 +1,7 @@ /* real.c - software floating point emulation. Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2002, - 2003, 2004, 2005, 2007, 2008, 2009 Free Software Foundation, Inc. + 2003, 2004, 2005, 2007, 2008, 2009, 2010, 2011 + Free Software Foundation, Inc. Contributed by Stephen L. Moshier (moshier@world.std.com). Re-written by Richard Henderson <rth@redhat.com> @@ -25,7 +26,7 @@ #include "coretypes.h" #include "tm.h" #include "tree.h" -#include "toplev.h" +#include "diagnostic-core.h" #include "real.h" #include "realmpfr.h" #include "tm_p.h" @@ -1009,15 +1010,25 @@ switch (code) { case PLUS_EXPR: + /* Clear any padding areas in *r if it isn't equal to one of the + operands so that we can later do bitwise comparisons later on. */ + if (r != op0 && r != op1) + memset (r, '\0', sizeof (*r)); return do_add (r, op0, op1, 0); case MINUS_EXPR: + if (r != op0 && r != op1) + memset (r, '\0', sizeof (*r)); return do_add (r, op0, op1, 1); case MULT_EXPR: + if (r != op0 && r != op1) + memset (r, '\0', sizeof (*r)); return do_multiply (r, op0, op1); case RDIV_EXPR: + if (r != op0 && r != op1) + memset (r, '\0', sizeof (*r)); return do_divide (r, op0, op1); case MIN_EXPR: