i386.h (EXPAND_BUILTIN_VA_ARG): Just abort.

        * config/i386/i386.h (EXPAND_BUILTIN_VA_ARG): Just abort.
        * config/i386/i386.c (ix86_va_arg): Remove.
        * config/rs6000/rs6000.h (EXPAND_BUILTIN_VA_ARG): Just abort.
        * config/rs6000/rs6000.c (rs6000_va_arg): Remove.
        * config/alpha/alpha.h (EXPAND_BUILTIN_VA_ARG): Just abort.
        * config/alpha/alpha.c (alpha_va_arg): Remove.
        * config/sparc/sparc.h (EXPAND_BUILTIN_VA_ARG): Just abort.
        * config/sparc/sparc.c (sparc_va_arg): Remove.

        * tree-ssa-operands.c (get_stmt_operands): Use a V_MAY_DEF if the
        assignment might throw.
        * tree-eh.c (tree_could_throw_p): Support non-call exceptions in
        expressions.

From-SVN: r82992

2 files changed, 1 insertions, 111 deletions

diff --git a/gcc/config/alpha/alpha.c b/gcc/config/alpha/alpha.c
index 7c9d67d..d4b78d3 100644
--- a/gcc/config/alpha/alpha.c
+++ b/gcc/config/alpha/alpha.c
@@ -6291,115 +6291,6 @@ alpha_va_start (tree valist, rtx nextarg ATTRIBUTE_UNUSED)
     }
 }
 
-rtx
-alpha_va_arg (tree valist, tree type)
-{
-  rtx addr;
-  tree t, type_size, rounded_size;
-  tree offset_field, base_field, addr_tree, addend;
-  tree wide_type, wide_ofs;
-  int indirect = 0;
-
-  if (TARGET_ABI_OPEN_VMS || TARGET_ABI_UNICOSMK)
-    return std_expand_builtin_va_arg (valist, type);
-
-  if (type == error_mark_node
-      || (type_size = TYPE_SIZE_UNIT (TYPE_MAIN_VARIANT (type))) == NULL
-      || TREE_OVERFLOW (type_size))
-    rounded_size = size_zero_node;
-  else
-    rounded_size = fold (build (MULT_EXPR, sizetype,
-				fold (build (TRUNC_DIV_EXPR, sizetype,
-					     fold (build (PLUS_EXPR, sizetype,
-							  type_size,
-							  size_int (7))),
-					     size_int (8))),
-				size_int (8)));
-
-  base_field = TYPE_FIELDS (TREE_TYPE (valist));
-  offset_field = TREE_CHAIN (base_field);
-
-  base_field = build (COMPONENT_REF, TREE_TYPE (base_field),
-		      valist, base_field);
-  offset_field = build (COMPONENT_REF, TREE_TYPE (offset_field),
-			valist, offset_field);
-
-  /* If the type could not be passed in registers, skip the block
-     reserved for the registers.  */
-  if (MUST_PASS_IN_STACK (TYPE_MODE (type), type))
-    {
-      t = build (MODIFY_EXPR, TREE_TYPE (offset_field), offset_field,
-		 build (MAX_EXPR, TREE_TYPE (offset_field), 
-			offset_field, build_int_2 (6*8, 0)));
-      TREE_SIDE_EFFECTS (t) = 1;
-      expand_expr (t, const0_rtx, VOIDmode, EXPAND_NORMAL);
-    }
-
-  wide_type = make_signed_type (64);
-  wide_ofs = save_expr (build1 (CONVERT_EXPR, wide_type, offset_field));
-
-  addend = wide_ofs;
-
-  if (TYPE_MODE (type) == TFmode || TYPE_MODE (type) == TCmode)
-    {
-      indirect = 1;
-      rounded_size = size_int (UNITS_PER_WORD);
-    }
-  else if (TREE_CODE (type) == COMPLEX_TYPE)
-    {
-      rtx real_part, imag_part, value, tmp;
-
-      real_part = alpha_va_arg (valist, TREE_TYPE (type));
-      imag_part = alpha_va_arg (valist, TREE_TYPE (type));
-
-      /* ??? Most irritatingly, we're not returning the value here,
-	 but the address.  Since real_part and imag_part are not
-	 necessarily contiguous, we must copy to local storage.  */
-
-      real_part = gen_rtx_MEM (TYPE_MODE (TREE_TYPE (type)), real_part);
-      imag_part = gen_rtx_MEM (TYPE_MODE (TREE_TYPE (type)), imag_part);
-      value = gen_rtx_CONCAT (TYPE_MODE (type), real_part, imag_part);
-
-      tmp = assign_temp (type, 0, 1, 0);
-      emit_move_insn (tmp, value);
-
-      return XEXP (tmp, 0);
-    }
-  else if (TREE_CODE (type) == REAL_TYPE)
-    {
-      tree fpaddend, cond;
-
-      fpaddend = fold (build (PLUS_EXPR, TREE_TYPE (addend),
-			      addend, build_int_2 (-6*8, 0)));
-
-      cond = fold (build (LT_EXPR, integer_type_node,
-			  wide_ofs, build_int_2 (6*8, 0)));
-
-      addend = fold (build (COND_EXPR, TREE_TYPE (addend), cond,
-			    fpaddend, addend));
-    }
-
-  addr_tree = build (PLUS_EXPR, TREE_TYPE (base_field),
-		     base_field, addend);
-
-  addr = expand_expr (addr_tree, NULL_RTX, Pmode, EXPAND_NORMAL);
-  addr = copy_to_reg (addr);
-
-  t = build (MODIFY_EXPR, TREE_TYPE (offset_field), offset_field,
-	     build (PLUS_EXPR, TREE_TYPE (offset_field), 
-		    offset_field, rounded_size));
-  TREE_SIDE_EFFECTS (t) = 1;
-  expand_expr (t, const0_rtx, VOIDmode, EXPAND_NORMAL);
-
-  if (indirect)
-    {
-      addr = force_reg (Pmode, addr);
-      addr = gen_rtx_MEM (Pmode, addr);
-    }
-
-  return addr;
-}
-
 static tree
 alpha_gimplify_va_arg_1 (tree type, tree base, tree offset,
 			 tree *pre_p, tree *post_p)
diff --git a/gcc/config/alpha/alpha.h b/gcc/config/alpha/alpha.h
index d59797c..8cc22ca 100644
--- a/gcc/config/alpha/alpha.h
+++ b/gcc/config/alpha/alpha.h
@@ -1687,8 +1687,7 @@ do {						\
   alpha_va_start (valist, nextarg)
 
 /* Implement `va_arg'.  */
-#define EXPAND_BUILTIN_VA_ARG(valist, type) \
-  alpha_va_arg (valist, type)
+#define EXPAND_BUILTIN_VA_ARG(valist, type) (abort (), NULL_RTX)
 
 /* Tell collect that the object format is ECOFF.  */
 #define OBJECT_FORMAT_COFF