* combine.c (combine_simplify_rtx): Use reversed_comparison_code_parts.

From-SVN: r62246

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index da99537..a226c3b 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+Sat Feb  1 14:14:40 CET 2003  Jan Hubicka  <jh@suse.cz>
+
+       * combine.c (combine_simplify_rtx):  Use reversed_comparison_code_parts.
+
 2003-02-01  Richard Sandiford  <rsandifo@redhat.com>
 
        * flags.h (flag_volatile): Remove declaration.

diff --git a/gcc/combine.c b/gcc/combine.c
index d3203fe..d6915c1 100644 (file)
--- a/gcc/combine.c
+++ b/gcc/combine.c
@@ -3708,6 +3708,8 @@ combine_simplify_rtx (x, op0_mode, last, in_dest)
          if (general_operand (true_rtx, VOIDmode)
              && general_operand (false_rtx, VOIDmode))
            {
+             enum rtx_code reversed;
+
              /* Restarting if we generate a store-flag expression will cause
                 us to loop.  Just drop through in this case.  */
 
@@ -3716,9 +3718,10 @@ combine_simplify_rtx (x, op0_mode, last, in_dest)
              if (true_rtx == const_true_rtx && false_rtx == const0_rtx)
                x = gen_binary (cond_code, mode, cond, cop1);
              else if (true_rtx == const0_rtx && false_rtx == const_true_rtx
-                      && reverse_condition (cond_code) != UNKNOWN)
-               x = gen_binary (reverse_condition (cond_code),
-                               mode, cond, cop1);
+                      && ((reversed = reversed_comparison_code_parts
+                                       (cond_code, cond, cop1, NULL))
+                          != UNKNOWN))
+               x = gen_binary (reversed, mode, cond, cop1);
 
              /* Likewise, we can make the negate of a comparison operation
                 if the result values are - STORE_FLAG_VALUE and zero.  */
@@ -3731,11 +3734,13 @@ combine_simplify_rtx (x, op0_mode, last, in_dest)
                                        mode);
              else if (GET_CODE (false_rtx) == CONST_INT
                       && INTVAL (false_rtx) == - STORE_FLAG_VALUE
-                      && true_rtx == const0_rtx)
+                      && true_rtx == const0_rtx
+                      && ((reversed = reversed_comparison_code_parts
+                                       (cond_code, cond, cop1, NULL))
+                          != UNKNOWN))
                x = simplify_gen_unary (NEG, mode,
-                                       gen_binary (reverse_condition
-                                                   (cond_code),
-                                                   mode, cond, cop1),
+                                       gen_binary (reversed, mode,
+                                                   cond, cop1),
                                        mode);
              else
                return gen_rtx_IF_THEN_ELSE (mode,