PR middle-end/9009

	* optabs.c (expand_unop):  When manipulating the FP sign bit
	using integer operations, account for targets with different
	integer and FP word orders.
	(expand_abs): Likewise.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@61335 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index ec32d19..8f42f48 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,11 @@
+2003-01-15  Roger Sayle  <roger@eyesopen.com>
+
+       PR middle-end/9009
+       * optabs.c (expand_unop):  When manipulating the FP sign bit
+       using integer operations, account for targets with different
+       integer and FP word orders.
+       (expand_abs): Likewise.
+
 2003-01-15  David Edelsohn  <edelsohn@gnu.org>
 
        * config/rs6000/rs6000.c (rs6000_gen_section_name): Do not include

diff --git a/gcc/optabs.c b/gcc/optabs.c
index d8c058e..38cc7e7 100644 (file)
--- a/gcc/optabs.c
+++ b/gcc/optabs.c
@@ -1,6 +1,6 @@
 /* Expand the basic unary and binary arithmetic operations, for GNU compiler.
    Copyright (C) 1987, 1988, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
-   1999, 2000, 2001, 2003 Free Software Foundation, Inc.
+   1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
 
 This file is part of GCC.
 
@@ -2530,6 +2530,14 @@ expand_unop (mode, unoptab, op0, target, unsignedp)
          HOST_WIDE_INT hi, lo;
          rtx last = get_last_insn ();
 
+         /* Handle targets with different FP word orders.  */
+         if (FLOAT_WORDS_BIG_ENDIAN != WORDS_BIG_ENDIAN)
+           {
+             int nwords = GET_MODE_BITSIZE (mode) / BITS_PER_WORD;
+             int word = nwords - (bitpos / BITS_PER_WORD) - 1;
+             bitpos = word * BITS_PER_WORD + bitpos % BITS_PER_WORD;
+           }
+
          if (bitpos < HOST_BITS_PER_WIDE_INT)
            {
              hi = 0;
@@ -2675,6 +2683,14 @@ expand_abs (mode, op0, target, result_unsignedp, safe)
          HOST_WIDE_INT hi, lo;
          rtx last = get_last_insn ();
 
+         /* Handle targets with different FP word orders.  */
+         if (FLOAT_WORDS_BIG_ENDIAN != WORDS_BIG_ENDIAN)
+           {
+             int nwords = GET_MODE_BITSIZE (mode) / BITS_PER_WORD;
+             int word = nwords - (bitpos / BITS_PER_WORD) - 1;
+             bitpos = word * BITS_PER_WORD + bitpos % BITS_PER_WORD;
+           }
+
          if (bitpos < HOST_BITS_PER_WIDE_INT)
            {
              hi = 0;