svn commit: r230959 - stable/8/contrib/gcc

[Pedro F. Giffuni]

Author: pfg
Date: Fri Feb  3 21:26:25 2012
New Revision: 230959
URL: http://svn.freebsd.org/changeset/base/230959

Log:
  MFC:	r228756
  
  Clean an inconsistency with -ffinite-math-only.
  Backported from the gcc-4_3-branch, revision (118001)
  under the GPLv2.
  This issue was also fixed in Apple's gcc.
  
  PR:		157025
  Reviewed by:	mm
  Approved by:	jhb (mentor)

Modified:
  stable/8/contrib/gcc/ChangeLog.gcc43
  stable/8/contrib/gcc/builtins.c
Directory Properties:
  stable/8/contrib/gcc/   (props changed)

Modified: stable/8/contrib/gcc/ChangeLog.gcc43
==============================================================================
--- stable/8/contrib/gcc/ChangeLog.gcc43	Fri Feb  3 21:24:28 2012	(r230958)
+++ stable/8/contrib/gcc/ChangeLog.gcc43	Fri Feb  3 21:26:25 2012	(r230959)
@@ -96,6 +96,14 @@
 
 	* doc/invoke.texi: Add entry about geode processor.
     
+2006-10-24  Richard Guenther  <rguenther at suse.de>
+
+	PR middle-end/28796
+	* builtins.c (fold_builtin_classify): Use HONOR_INFINITIES
+	and HONOR_NANS instead of MODE_HAS_INFINITIES and MODE_HAS_NANS
+	for deciding optimizations in consistency with fold-const.c
+	(fold_builtin_unordered_cmp): Likewise.
+
 2006-10-22  H.J. Lu  <hongjiu.lu at intel.com> (r117958)
 
 	* config.gcc (i[34567]86-*-*): Add tmmintrin.h to extra_headers.

Modified: stable/8/contrib/gcc/builtins.c
==============================================================================
--- stable/8/contrib/gcc/builtins.c	Fri Feb  3 21:24:28 2012	(r230958)
+++ stable/8/contrib/gcc/builtins.c	Fri Feb  3 21:26:25 2012	(r230959)
@@ -8720,7 +8720,7 @@ fold_builtin_classify (tree fndecl, tree
   switch (builtin_index)
     {
     case BUILT_IN_ISINF:
-      if (!MODE_HAS_INFINITIES (TYPE_MODE (TREE_TYPE (arg))))
+      if (!HONOR_INFINITIES (TYPE_MODE (TREE_TYPE (arg))))
 	return omit_one_operand (type, integer_zero_node, arg);
 
       if (TREE_CODE (arg) == REAL_CST)
@@ -8736,8 +8736,8 @@ fold_builtin_classify (tree fndecl, tree
       return NULL_TREE;
 
     case BUILT_IN_FINITE:
-      if (!MODE_HAS_NANS (TYPE_MODE (TREE_TYPE (arg)))
-	  && !MODE_HAS_INFINITIES (TYPE_MODE (TREE_TYPE (arg))))
+      if (!HONOR_NANS (TYPE_MODE (TREE_TYPE (arg)))
+	  && !HONOR_INFINITIES (TYPE_MODE (TREE_TYPE (arg))))
 	return omit_one_operand (type, integer_zero_node, arg);
 
       if (TREE_CODE (arg) == REAL_CST)
@@ -8750,7 +8750,7 @@ fold_builtin_classify (tree fndecl, tree
       return NULL_TREE;
 
     case BUILT_IN_ISNAN:
-      if (!MODE_HAS_NANS (TYPE_MODE (TREE_TYPE (arg))))
+      if (!HONOR_NANS (TYPE_MODE (TREE_TYPE (arg))))
 	return omit_one_operand (type, integer_zero_node, arg);
 
       if (TREE_CODE (arg) == REAL_CST)
@@ -8833,13 +8833,13 @@ fold_builtin_unordered_cmp (tree fndecl,
 
   if (unordered_code == UNORDERED_EXPR)
     {
-      if (!MODE_HAS_NANS (TYPE_MODE (TREE_TYPE (arg0))))
+      if (!HONOR_NANS (TYPE_MODE (TREE_TYPE (arg0))))
 	return omit_two_operands (type, integer_zero_node, arg0, arg1);
       return fold_build2 (UNORDERED_EXPR, type, arg0, arg1);
     }
 
-  code = MODE_HAS_NANS (TYPE_MODE (TREE_TYPE (arg0))) ? unordered_code
-						      : ordered_code;
+  code = HONOR_NANS (TYPE_MODE (TREE_TYPE (arg0))) ? unordered_code
+						   : ordered_code;
   return fold_build1 (TRUTH_NOT_EXPR, type,
 		      fold_build2 (code, type, arg0, arg1));
 }