+2005-08-08 Jan Hubicka <jh@suse.cz>
+
+ * i386.c (legitimate_pic_address_disp_p): Refuse GOTOFF in 64bit mode.
+ (legitimate_address_p): Refuse GOT and GOTOFF in 64bit mode.
+ * i386.md (movdi*): Use pic_32bit_operand.
+ * predicates.md (pic_32bit_operand): New.
+
2005-08-08 Nathan Sidwell <nathan@codesourcery.com>
PR c++/21166
return false;
return GET_CODE (XVECEXP (disp, 0, 0)) == SYMBOL_REF;
case UNSPEC_GOTOFF:
- if (GET_CODE (XVECEXP (disp, 0, 0)) == SYMBOL_REF
- || GET_CODE (XVECEXP (disp, 0, 0)) == LABEL_REF)
+ /* Refuse GOTOFF in 64bit mode since it is always 64bit when used.
+ While ABI specify also 32bit relocation but we don't produce it in
+ small PIC model at all. */
+ if ((GET_CODE (XVECEXP (disp, 0, 0)) == SYMBOL_REF
+ || GET_CODE (XVECEXP (disp, 0, 0)) == LABEL_REF)
+ && !TARGET_64BIT)
return local_symbolic_operand (XVECEXP (disp, 0, 0), Pmode);
return false;
case UNSPEC_GOTTPOFF:
&& GET_CODE (XEXP (disp, 0)) == UNSPEC)
switch (XINT (XEXP (disp, 0), 1))
{
+ /* Refuse GOTOFF and GOT in 64bit mode since it is always 64bit when
+ used. While ABI specify also 32bit relocations, we don't produce
+ them at all and use IP relative instead. */
case UNSPEC_GOT:
case UNSPEC_GOTOFF:
+ gcc_assert (flag_pic);
+ if (!TARGET_64BIT)
+ goto is_legitimate_pic;
+ reason = "64bit address unspec";
+ goto report_error;
+
case UNSPEC_GOTPCREL:
gcc_assert (flag_pic);
goto is_legitimate_pic;
(const_string "sselog1")
(eq_attr "alternative" "7,8,9,10,11")
(const_string "ssemov")
- (and (ne (symbol_ref "flag_pic") (const_int 0))
- (match_operand:SI 1 "symbolic_operand" ""))
+ (match_operand:DI 1 "pic_32bit_operand" "")
(const_string "lea")
]
(const_string "imov")))
(const_string "ssecvt")
(eq_attr "alternative" "4")
(const_string "multi")
- (and (ne (symbol_ref "flag_pic") (const_int 0))
- (match_operand:DI 1 "symbolic_operand" ""))
+ (match_operand:DI 1 "pic_32bit_operand" "")
(const_string "lea")
]
(const_string "imov")))
(match_operand 0 "x86_64_zext_immediate_operand")))
(match_operand 0 "nonmemory_operand")))
+;; Return true when operand is PIC expression that can be computed by lea
+;; operation.
+(define_predicate "pic_32bit_operand"
+ (match_code "const,symbol_ref,label_ref")
+{
+ if (!flag_pic)
+ return 0;
+ /* Rule out relocations that translate into 64bit constants. */
+ if (TARGET_64BIT && GET_CODE (op) == CONST)
+ {
+ op = XEXP (op, 0);
+ if (GET_CODE (op) == PLUS && GET_CODE (XEXP (op, 1)) == CONST_INT)
+ op = XEXP (op, 0);
+ if (GET_CODE (op) == UNSPEC
+ && (XINT (op, 1) == UNSPEC_GOTOFF
+ || XINT (op, 1) == UNSPEC_GOT))
+ return 0;
+ }
+ return symbolic_operand (op, mode);
+})
+
+
;; Return nonzero if OP is nonmemory operand acceptable by movabs patterns.
(define_predicate "x86_64_movabs_operand"
(if_then_else (match_test "!TARGET_64BIT || !flag_pic")