(subst, case PLUS): Simplify (plus (comp A B) -1), etc.

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

diff --git a/gcc/integrate.c b/gcc/integrate.c
index e18f690..8fe1900 100644 (file)
--- a/gcc/integrate.c
+++ b/gcc/integrate.c
@@ -103,11 +103,6 @@ function_cannot_inline_p (fndecl)
   if (current_function_contains_functions)
     return "function with nested functions cannot be inline";
 
-  /* This restriction may be eliminated sometime soon.  But for now, don't
-     worry about remapping the static chain.  */
-  if (current_function_needs_context)
-    return "nested function cannot be inline";
-
   /* If its not even close, don't even look.  */
   if (!DECL_INLINE (fndecl) && get_max_uid () > 3 * max_insns)
     return "function too large to be inline";
@@ -1147,6 +1142,7 @@ expand_inline_function (fndecl, parms, target, ignore, type, structure_value_add
   struct inline_remap *map;
   rtx cc0_insn = 0;
   rtvec arg_vector = ORIGINAL_ARG_VECTOR (header);
+  rtx static_chain_value = 0;
 
   /* Allow for equivalences of the pseudos we make for virtual fp and ap.  */
   max_regno = MAX_REGNUM (header) + 3;
@@ -1269,7 +1265,11 @@ expand_inline_function (fndecl, parms, target, ignore, type, structure_value_add
                  && (GET_CODE (arg_vals[i]) == REG
                      || GET_CODE (arg_vals[i]) == SUBREG
                      || GET_CODE (arg_vals[i]) == MEM)
-                 && reg_overlap_mentioned_p (arg_vals[i], target))))
+                 && reg_overlap_mentioned_p (arg_vals[i], target))
+             /* ??? We must always copy a SUBREG into a REG, because it might
+                get substituted into an address, and not all ports correctly
+                handle SUBREGs in addresses.  */
+             || (GET_CODE (arg_vals[i]) == SUBREG)))
        arg_vals[i] = copy_to_mode_reg (GET_MODE (loc), arg_vals[i]);
     }
        
@@ -1329,6 +1329,10 @@ expand_inline_function (fndecl, parms, target, ignore, type, structure_value_add
   if (FUNCTION_FLAGS (header) & FUNCTION_FLAGS_USES_PIC_OFFSET_TABLE)
     current_function_uses_pic_offset_table = 1;
 
+  /* If this function needs a context, set it up.  */
+  if (FUNCTION_FLAGS (header) & FUNCTION_FLAGS_NEEDS_CONTEXT)
+    static_chain_value = lookup_static_chain (fndecl);
+
   /* Process each argument.  For each, set up things so that the function's
      reference to the argument will refer to the argument being passed.
      We only replace REG with REG here.  Any simplifications are done
@@ -1583,6 +1587,20 @@ expand_inline_function (fndecl, parms, target, ignore, type, structure_value_add
              else
                break;
            }
+         /* If this is setting the static chain pseudo, set it from
+            the value we want to give it instead.  */
+         else if (static_chain_value != 0
+                  && GET_CODE (pattern) == SET
+                  && rtx_equal_p (SET_SRC (pattern),
+                                  static_chain_incoming_rtx))
+           {
+             rtx newdest = copy_rtx_and_substitute (SET_DEST (pattern), map);
+
+             copy = emit_insn (gen_rtx (SET, VOIDmode, newdest,
+                                        static_chain_value));
+
+             static_chain_value = 0;
+           }
          else
            copy = emit_insn (copy_rtx_and_substitute (pattern, map));
          /* REG_NOTES will be copied later.  */
@@ -2808,8 +2826,6 @@ output_inline_function (fndecl)
   rtx head = DECL_SAVED_INSNS (fndecl);
   rtx last;
 
-  temporary_allocation ();
-
   current_function_decl = fndecl;
 
   /* This call is only used to initialize global variables.  */
@@ -2893,6 +2909,4 @@ output_inline_function (fndecl)
   rest_of_compilation (fndecl);
 
   current_function_decl = 0;
-
-  permanent_allocation ();
 }