* config/m68k/m68k.h: Remove comments copied over from tm.texi.

[pf3gnuchains/gcc-fork.git] / gcc / optabs.c

diff --git a/gcc/optabs.c b/gcc/optabs.c
index e8f4dc0..562eb29 100644 (file)
--- a/gcc/optabs.c
+++ b/gcc/optabs.c
@@ -1089,7 +1089,7 @@ expand_binop (enum machine_mode mode, optab binoptab, rtx op0, rtx op1,
       /* If TARGET is the same as one of the operands, the REG_EQUAL note
         won't be accurate, so use a new target. Do this also if target is not
         a REG, first because having a register instead may open optimization
-        oportunities, and second because if target and op0 happen to be MEMs
+        opportunities, and second because if target and op0 happen to be MEMs
         designating the same location, we would risk clobbering it too early
         in the code sequence we generate below.  */
       if (target == 0 || target == op0 || target == op1 || ! REG_P (target))
@@ -2737,6 +2737,15 @@ expand_unop (enum machine_mode mode, optab unoptab, rtx op0, rtx target,
        return temp;
     }
 
+  /* If there is no negation pattern, try subtracting from zero.  */
+  if (unoptab == neg_optab && class == MODE_INT)
+    {
+      temp = expand_binop (mode, sub_optab, CONST0_RTX (mode), op0,
+                           target, unsignedp, OPTAB_DIRECT);
+      if (temp)
+       return temp;
+    }
+
  try_libcall:
   /* Now try a library call in this mode.  */
   if (unoptab->handlers[(int) mode].libfunc)
@@ -5328,6 +5337,8 @@ init_optabs (void)
   udivmod_optab = init_optab (UNKNOWN);
   smod_optab = init_optab (MOD);
   umod_optab = init_optab (UMOD);
+  fmod_optab = init_optab (UNKNOWN);
+  drem_optab = init_optab (UNKNOWN);
   ftrunc_optab = init_optab (UNKNOWN);
   and_optab = init_optab (AND);
   ior_optab = init_optab (IOR);
@@ -5380,15 +5391,19 @@ init_optabs (void)
   nearbyint_optab = init_optab (UNKNOWN);
   sincos_optab = init_optab (UNKNOWN);
   sin_optab = init_optab (UNKNOWN);
+  asin_optab = init_optab (UNKNOWN);
   cos_optab = init_optab (UNKNOWN);
+  acos_optab = init_optab (UNKNOWN);
   exp_optab = init_optab (UNKNOWN);
   exp10_optab = init_optab (UNKNOWN);
   exp2_optab = init_optab (UNKNOWN);
+  expm1_optab = init_optab (UNKNOWN);
   logb_optab = init_optab (UNKNOWN);
   ilogb_optab = init_optab (UNKNOWN);
   log_optab = init_optab (UNKNOWN);
   log10_optab = init_optab (UNKNOWN);
   log2_optab = init_optab (UNKNOWN);
+  log1p_optab = init_optab (UNKNOWN);
   tan_optab = init_optab (UNKNOWN);
   atan_optab = init_optab (UNKNOWN);
   strlen_optab = init_optab (UNKNOWN);