/* Output routines for GCC for ARM.
Copyright (C) 1991, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
- 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
+ 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
Free Software Foundation, Inc.
Contributed by Pieter `Tiggr' Schoenmakers (rcpieter@win.tue.nl)
and Martin Simmons (@harleqn.co.uk).
}
emit_insn (gen_pic_load_addr_thumb2 (pic_reg, pic_rtx));
- emit_insn (gen_pic_add_dot_plus_four (pic_reg, pic_reg, labelno));
+ emit_insn (gen_pic_load_dot_plus_four (pic_tmp, labelno));
+ emit_insn (gen_addsi3 (pic_reg, pic_reg, pic_tmp));
}
else /* TARGET_THUMB1 */
{
;;- Machine description for ARM for GNU compiler
;; Copyright 1991, 1993, 1994, 1995, 1996, 1996, 1997, 1998, 1999, 2000,
-;; 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
+;; 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
;; Free Software Foundation, Inc.
;; Contributed by Pieter `Tiggr' Schoenmakers (rcpieter@win.tue.nl)
;; and Martin Simmons (@harleqn.co.uk).
(const_int 4)
(match_operand 2 "" "")]
UNSPEC_PIC_BASE))]
- "TARGET_THUMB"
+ "TARGET_THUMB1"
"*
(*targetm.asm_out.internal_label) (asm_out_file, \"LPIC\",
INTVAL (operands[2]));
static void mn10300_trampoline_init (rtx, tree, rtx);
static rtx mn10300_function_value (const_tree, const_tree, bool);
static rtx mn10300_libcall_value (enum machine_mode, const_rtx);
+static void mn10300_asm_output_mi_thunk (FILE *, tree, HOST_WIDE_INT, HOST_WIDE_INT, tree);
+static bool mn10300_can_output_mi_thunk (const_tree, HOST_WIDE_INT, HOST_WIDE_INT, const_tree);
\f
/* Initialize the GCC target structure. */
#undef TARGET_ASM_ALIGNED_HI_OP
#undef TARGET_LIBCALL_VALUE
#define TARGET_LIBCALL_VALUE mn10300_libcall_value
+#undef TARGET_ASM_OUTPUT_MI_THUNK
+#define TARGET_ASM_OUTPUT_MI_THUNK mn10300_asm_output_mi_thunk
+#undef TARGET_ASM_CAN_OUTPUT_MI_THUNK
+#define TARGET_ASM_CAN_OUTPUT_MI_THUNK mn10300_can_output_mi_thunk
+
struct gcc_target targetm = TARGET_INITIALIZER;
\f
/* Implement TARGET_HANDLE_OPTION. */
}
/* Return an RTX to represent where a value with mode MODE will be returned
- from a function. If the result is 0, the argument is pushed. */
+ from a function. If the result is NULL_RTX, the argument is pushed. */
rtx
function_arg (CUMULATIVE_ARGS *cum, enum machine_mode mode,
tree type, int named ATTRIBUTE_UNUSED)
{
- rtx result = 0;
+ rtx result = NULL_RTX;
int size, align;
/* We only support using 2 data registers as argument registers. */
/* Don't pass this arg via a register if all the argument registers
are used up. */
if (cum->nbytes > nregs * UNITS_PER_WORD)
- return 0;
+ return result;
/* Don't pass this arg via a register if it would be split between
registers and memory. */
if (type == NULL_TREE
&& cum->nbytes + size > nregs * UNITS_PER_WORD)
- return 0;
+ return result;
switch (cum->nbytes / UNITS_PER_WORD)
{
case 0:
- result = gen_rtx_REG (mode, 0);
+ result = gen_rtx_REG (mode, FIRST_ARGUMENT_REGNUM);
break;
case 1:
- result = gen_rtx_REG (mode, 1);
+ result = gen_rtx_REG (mode, FIRST_ARGUMENT_REGNUM + 1);
break;
default:
- result = 0;
+ break;
}
return result;
mem = adjust_address (m_tramp, SImode, 0x18);
emit_move_insn (mem, fnaddr);
}
+
+/* Output the assembler code for a C++ thunk function.
+ THUNK_DECL is the declaration for the thunk function itself, FUNCTION
+ is the decl for the target function. DELTA is an immediate constant
+ offset to be added to the THIS parameter. If VCALL_OFFSET is nonzero
+ the word at the adjusted address *(*THIS' + VCALL_OFFSET) should be
+ additionally added to THIS. Finally jump to the entry point of
+ FUNCTION. */
+
+static void
+mn10300_asm_output_mi_thunk (FILE * file,
+ tree thunk_fndecl ATTRIBUTE_UNUSED,
+ HOST_WIDE_INT delta,
+ HOST_WIDE_INT vcall_offset,
+ tree function)
+{
+ const char * _this;
+
+ /* Get the register holding the THIS parameter. Handle the case
+ where there is a hidden first argument for a returned structure. */
+ if (aggregate_value_p (TREE_TYPE (TREE_TYPE (function)), function))
+ _this = reg_names [FIRST_ARGUMENT_REGNUM + 1];
+ else
+ _this = reg_names [FIRST_ARGUMENT_REGNUM];
+
+ fprintf (file, "\t%s Thunk Entry Point:\n", ASM_COMMENT_START);
+
+ if (delta)
+ fprintf (file, "\tadd %d, %s\n", (int) delta, _this);
+
+ if (vcall_offset)
+ {
+ const char * scratch = reg_names [FIRST_ADDRESS_REGNUM + 1];
+
+ fprintf (file, "\tmov %s, %s\n", _this, scratch);
+ fprintf (file, "\tmov (%s), %s\n", scratch, scratch);
+ fprintf (file, "\tadd %d, %s\n", (int) vcall_offset, scratch);
+ fprintf (file, "\tmov (%s), %s\n", scratch, scratch);
+ fprintf (file, "\tadd %s, %s\n", scratch, _this);
+ }
+
+ fputs ("\tjmp ", file);
+ assemble_name (file, XSTR (XEXP (DECL_RTL (function), 0), 0));
+ putc ('\n', file);
+}
+
+/* Return true if mn10300_output_mi_thunk would be able to output the
+ assembler code for the thunk function specified by the arguments
+ it is passed, and false otherwise. */
+
+static bool
+mn10300_can_output_mi_thunk (const_tree thunk_fndecl ATTRIBUTE_UNUSED,
+ HOST_WIDE_INT delta ATTRIBUTE_UNUSED,
+ HOST_WIDE_INT vcall_offset ATTRIBUTE_UNUSED,
+ const_tree function ATTRIBUTE_UNUSED)
+{
+ return true;
+}
#define LAST_EXTENDED_REGNUM 17
#define FIRST_FP_REGNUM 18
#define LAST_FP_REGNUM 49
+#define FIRST_ARGUMENT_REGNUM 0
/* Specify the registers used for certain standard purposes.
The values of these macros are register numbers. */
#define STACK_POINTER_OFFSET 4
/* 1 if N is a possible register number for function argument passing.
- On the MN10300, no registers are used in this way. */
+ On the MN10300, d0 and d1 are used in this way. */
-#define FUNCTION_ARG_REGNO_P(N) ((N) <= 1)
+#define FUNCTION_ARG_REGNO_P(N) ((N) <= 2)
\f
/* Define a data type for recording info about an argument list
NAMED is nonzero if this argument is a named parameter
(otherwise it is an extra parameter matching an ellipsis). */
-/* On the MN10300 all args are pushed. */
-
#define FUNCTION_ARG(CUM, MODE, TYPE, NAMED) \
function_arg (&CUM, MODE, TYPE, NAMED)
projects / thirdparty / gcc.git / commitdiff
