From: Dale Johannesen <dalej@apple.com>
Date: Mon, 28 Oct 2002 20:39:53 +0000 (+0000)
Subject: re PR target/7133 (PPC: unrecognizable insn)
X-Git-Tag: releases/gcc-3.2.1~92
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f33c40c93d6e24f5f87a007348776f8dc43feb8d;p=thirdparty%2Fgcc.git

re PR target/7133 (PPC: unrecognizable insn)

	2002-10-21  Dale Johannesen  <dalej@apple.com>

	PR target/7133
	* config/rs6000/rs6000.c (rs6000_reverse_condition): Handle
	unsafe math reversals correctly for RTL generation.
	(output_cbranch):  Replace rs6000_reverse_condition call
	by its former definition.

From-SVN: r58604
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index a6ad5b75f7c7..9229d2adb427 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,11 @@
+2002-10-21  Dale Johannesen  <dalej@apple.com>
+
+	PR target/7133
+	* config/rs6000/rs6000.c (rs6000_reverse_condition): Handle
+	unsafe math reversals correctly for RTL generation.
+	(output_cbranch):  Replace rs6000_reverse_condition call
+	by its former definition.
+
 Sun Oct 27 10:12:27 CET 2002  Jan Hubicka  <jh@suse.cz>
 
 	* linux64.h (DEFAULT_PCC_STRUCT_RETURN):  Define.
diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c
index ad9df44dbc88..7d9ae2b28be5 100644
--- a/gcc/config/rs6000/rs6000.c
+++ b/gcc/config/rs6000/rs6000.c
@@ -6920,7 +6920,7 @@ rs6000_reverse_condition (mode, code)
 {
   /* Reversal of FP compares takes care -- an ordered compare
      becomes an unordered compare and vice versa.  */
-  if (mode == CCFPmode)
+  if (mode == CCFPmode && !flag_unsafe_math_optimizations)
     return reverse_condition_maybe_unordered (code);
   else
     return reverse_condition (code);
@@ -7073,7 +7073,14 @@ output_cbranch (op, label, reversed, insn)
      reverse_condition_maybe_unordered here always but this
      makes the resulting assembler clearer.  */
   if (really_reversed)
-    code = rs6000_reverse_condition (mode, code);
+    {
+      /* Reversal of FP compares takes care -- an ordered compare
+	 becomes an unordered compare and vice versa.  */
+      if (mode == CCFPmode)
+	code = reverse_condition_maybe_unordered (code);
+      else
+	code = reverse_condition (code);
+    }
 
   switch (code)
     {