rtl.def: Add unordered fp comparisions.

        * rtl.def: Add unordered fp comparisions.
        * tree.def: Likewise.
	* tree.h: Add ISO C 9x unordered fp comparision builtins.

	* builtins.c (expand_tree_builtin): New function.
	* c-typeck.c (build_function_call): Use it.
	(build_binary_op): Support unordered compares.
	* c-common.c (c_common_nodes_and_builtins): Add unordered compares.

	* combine.c (known_cond): Handle reverse_condition returning UNKNOWN.
	(reversible_comparison_p): Allow UNORDERED/ORDERED to be reversed.
	* cse.c (fold_rtx): Check FLOAT_MODE_P before reversing.
	(record_jump_equiv): Handle reverse_condition returning UNKNOWN.
	* jump.c (reverse_condition): Don't abort for UNLE etc, but
	return UNKNOWN.
	(swap_condition): Handle unordered compares.
	(thread_jumps): Check can_reverse before reversing.
	* loop.c (get_condition): Likewise.  Allow UNORERED/ORDERED to be
	reversed for FP.

	* optabs.c (can_compare_p): New argument CODE.  Verify branch or
	setcc is present before acking for cmp_optab.  Update all callers.
	(prepare_float_lib_cmp, init_optabs): Handle UNORDERED.
	* expmed.c (do_cmp_and_jump): Update for can_compare_p.
	* expr.c (expand_expr): Likewise.  Support unordered compares.
	(do_jump, do_store_flag): Likewise.
	* expr.h (enum libfunc_index): Add unordered compares.

	* Makefile.in (FPBIT_FUNCS): Add _unord_sf.
	(DPBIT_FUNCS): Add _unord_df.
	* config/fp-bit.c (_unord_f2): New.
	* fp-test.c (main): Try unordered compare builtins.

	* alpha-protos.h (alpha_fp_comparison_operator): Declare.
	* alpha.c (alpha_comparison_operator): Check mode properly.
	(alpha_swapped_comparison_operator): Likewise.
	(signed_comparison_operator): Likewise.
	(alpha_fp_comparison_operator): New.
	(alpha_emit_conditional_branch): Handle unordered compares.
	* alpha.h (PREDICATE_CODES): Update.
	* alpha.md (fp compares): Use alpha_fp_comparison_operator.
	(bunordered, bordered): New.

	* cp/call.c (build_over_call): Use expand_tree_builtin.
	* cp/typeck.c (build_function_call_real): Likewise.
	(build_binary_op_nodefault): Handle unordered compares.

	* gcc.c-torture/execute/ieee/fp-cmp-4.c: New.

From-SVN: r31591

1 files changed, 35 insertions, 14 deletions

diff --git a/gcc/fp-test.c b/gcc/fp-test.c
index 667059c..d071244 100644
--- a/gcc/fp-test.c
+++ b/gcc/fp-test.c
@@ -1,23 +1,23 @@
 /* fp-test.c - Check that all floating-point operations are available.
-   Copyright (C) 1995 Free Software Foundation, Inc.
+   Copyright (C) 1995, 2000 Free Software Foundation, Inc.
    Contributed by Ronald F. Guilmette <rfg@monkeys.com>.
 
-This file is part of GNU CC.
+   This file is part of GNU CC.
 
-GNU CC is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
+   GNU CC is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
 
-GNU CC is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
+   GNU CC is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
 
-You should have received a copy of the GNU General Public License
-along with GNU CC; see the file COPYING.  If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.  */
+   You should have received a copy of the GNU General Public License
+   along with GNU CC; see the file COPYING.  If not, write to
+   the Free Software Foundation, 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
 
 /* This is a trivial test program which may be useful to people who are
    porting the GCC or G++ compilers to a new system.  The intent here is
@@ -104,6 +104,13 @@ main ()
   si = f1 >= f2;
   si = f1 <= f2;
 
+  si = __builtin_isgreater (f1, f2);
+  si = __builtin_isgreaterequal (f1, f2);
+  si = __builtin_isless (f1, f2);
+  si = __builtin_islessequal (f1, f2);
+  si = __builtin_islessgreater (f1, f2);
+  si = __builtin_isunordered (f1, f2);
+
   sc = f1;
   uc = f1;
   ss = f1;
@@ -143,6 +150,13 @@ main ()
   si = d1 >= d2;
   si = d1 <= d2;
 
+  si = __builtin_isgreater (d1, d2);
+  si = __builtin_isgreaterequal (d1, d2);
+  si = __builtin_isless (d1, d2);
+  si = __builtin_islessequal (d1, d2);
+  si = __builtin_islessgreater (d1, d2);
+  si = __builtin_isunordered (d1, d2);
+
   sc = d1;
   uc = d1;
   ss = d1;
@@ -182,6 +196,13 @@ main ()
   si = D1 >= D2;
   si = D1 <= D2;
 
+  si = __builtin_isgreater (D1, D2);
+  si = __builtin_isgreaterequal (D1, D2);
+  si = __builtin_isless (D1, D2);
+  si = __builtin_islessequal (D1, D2);
+  si = __builtin_islessgreater (D1, D2);
+  si = __builtin_isunordered (D1, D2);
+
   sc = D1;
   uc = D1;
   ss = D1;