;
-; setjmp/longjmp instruction pattern(s).
+; setjmp instruction pattern.
;
-(define_expand "builtin_setjmp_setup"
- [(match_operand 0 "register_operand" "")]
- ""
-{
- rtx base = gen_rtx_MEM (Pmode, plus_constant (operands[0], 4 * GET_MODE_SIZE (Pmode)));
- rtx basereg = gen_rtx_REG (Pmode, BASE_REGISTER);
-
- emit_move_insn (base, basereg);
- DONE;
-})
-
(define_expand "builtin_setjmp_receiver"
[(match_operand 0 "" "")]
"flag_pic"
DONE;
})
-(define_expand "builtin_longjmp"
- [(match_operand 0 "register_operand" "")]
- ""
-{
- /* The elements of the buffer are, in order: */
- rtx fp = gen_rtx_MEM (Pmode, operands[0]);
- rtx lab = gen_rtx_MEM (Pmode, plus_constant (operands[0], GET_MODE_SIZE (Pmode)));
- rtx stack = gen_rtx_MEM (Pmode, plus_constant (operands[0], 2 * GET_MODE_SIZE (Pmode)));
- rtx base = gen_rtx_MEM (Pmode, plus_constant (operands[0], 4 * GET_MODE_SIZE (Pmode)));
- rtx basereg = gen_rtx_REG (Pmode, BASE_REGISTER);
- rtx jmp = gen_reg_rtx (Pmode);
-
- emit_move_insn (jmp, lab);
- emit_move_insn (basereg, base);
- emit_stack_restore (SAVE_NONLOCAL, stack, NULL_RTX);
- emit_move_insn (hard_frame_pointer_rtx, fp);
-
- emit_insn (gen_rtx_USE (VOIDmode, hard_frame_pointer_rtx));
- emit_insn (gen_rtx_USE (VOIDmode, stack_pointer_rtx));
- emit_insn (gen_rtx_USE (VOIDmode, basereg));
- emit_indirect_jump (jmp);
- DONE;
-})
-
-
;; These patterns say how to save and restore the stack pointer. We need not
;; save the stack pointer at function level since we are careful to
;; preserve the backchain. At block level, we have to restore the backchain
{
rtx temp = gen_reg_rtx (Pmode);
- /* Copy the backchain to the first word, sp to the second. */
+ /* Copy the backchain to the first word, sp to the second and the literal pool
+ base to the third. */
+ emit_move_insn (operand_subword (operands[0], 2, 0,
+ TARGET_64BIT ? OImode : TImode),
+ gen_rtx_REG (Pmode, BASE_REGISTER));
emit_move_insn (temp, gen_rtx_MEM (Pmode, operands[1]));
emit_move_insn (operand_subword (operands[0], 0, 0,
- TARGET_64BIT ? TImode : DImode),
+ TARGET_64BIT ? OImode : TImode),
temp);
emit_move_insn (operand_subword (operands[0], 1, 0,
- TARGET_64BIT ? TImode : DImode),
+ TARGET_64BIT ? OImode : TImode),
operands[1]);
DONE;
})
""
{
rtx temp = gen_reg_rtx (Pmode);
+ rtx base = gen_rtx_REG (Pmode, BASE_REGISTER);
- /* Restore the backchain from the first word, sp from the second. */
+ /* Restore the backchain from the first word, sp from the second and the
+ literal pool base from the third. */
emit_move_insn (temp,
operand_subword (operands[1], 0, 0,
- TARGET_64BIT ? TImode : DImode));
+ TARGET_64BIT ? OImode : TImode));
emit_move_insn (operands[0],
operand_subword (operands[1], 1, 0,
- TARGET_64BIT ? TImode : DImode));
+ TARGET_64BIT ? OImode : TImode));
emit_move_insn (gen_rtx_MEM (Pmode, operands[0]), temp);
+ emit_move_insn (base,
+ operand_subword (operands[1], 2, 0,
+ TARGET_64BIT ? OImode : TImode));
+ emit_insn (gen_rtx_USE (VOIDmode, base));
+
DONE;
})