(dbxout_parms): Do something for structures

passed by invisible reference, and living in memory.

From-SVN: r1727

diff --git a/gcc/dbxout.c b/gcc/dbxout.c
index 5f9e4b5d2b54282ac0e475c426ae58579cb69911..d5d284249e3a85e6bd7dcefba460ea36083477ae 100644 (file)
--- a/gcc/dbxout.c
+++ b/gcc/dbxout.c
@@ -1920,9 +1920,9 @@ dbxout_parms (parms)
            dbxout_finish_symbol (parms);
          }
        else if (GET_CODE (DECL_RTL (parms)) == MEM
-                && GET_CODE (XEXP (DECL_RTL (parms), 0)) == REG
-                && rtx_equal_p (XEXP (DECL_RTL (parms), 0),
-                                DECL_INCOMING_RTL (parms)))
+                && GET_CODE (XEXP (DECL_RTL (parms), 0)) == REG)
+/*              && rtx_equal_p (XEXP (DECL_RTL (parms), 0),
+                                DECL_INCOMING_RTL (parms))) */
          {
            /* Parm was passed via invisible reference.
               That is, its address was passed in a register.
@@ -2084,6 +2084,40 @@ dbxout_reg_parms (parms)
            dbxout_type (TREE_TYPE (parms), 0, 0);
            dbxout_finish_symbol (parms);
          }
+#if 0
+       else if (GET_CODE (DECL_RTL (parms)) == MEM
+                && GET_CODE (XEXP (DECL_RTL (parms), 0)) == REG)
+         {
+           /* Parm was passed via invisible reference.
+              That is, its address was passed in a register.
+              Output it as if it lived in that register.
+              The debugger will know from the type
+              that it was actually passed by invisible reference.  */
+
+           current_sym_code = N_RSYM;
+
+           /* DECL_RTL looks like (MEM (REG...).  Get the register number.  */
+           current_sym_value = REGNO (XEXP (DECL_RTL (parms), 0));
+           current_sym_addr = 0;
+
+           FORCE_TEXT;
+           if (DECL_NAME (parms))
+             {
+               current_sym_nchars = 2 + strlen (IDENTIFIER_POINTER (DECL_NAME (parms)));
+
+               fprintf (asmfile, "%s \"%s:r", ASM_STABS_OP,
+                        IDENTIFIER_POINTER (DECL_NAME (parms)));
+             }
+           else
+             {
+               current_sym_nchars = 8;
+               fprintf (asmfile, "%s \"(anon):r", ASM_STABS_OP);
+             }
+
+           dbxout_type (TREE_TYPE (parms), 0, 0);
+           dbxout_finish_symbol (parms);
+         }
+#endif
       }
 }
 \f