/* Definitions of target machine for GNU compiler.
Matsushita MN10300 series
Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
- 2007 Free Software Foundation, Inc.
+ 2007, 2008, 2009 Free Software Foundation, Inc.
Contributed by Jeff Law (law@cygnus.com).
This file is part of GCC.
, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 \
}
+/* Note: The definition of CALL_REALLY_USED_REGISTERS is not
+ redundant. It is needed when compiling in PIC mode because
+ the a2 register becomes fixed (and hence must be marked as
+ call_used) but in order to preserve the ABI it is not marked
+ as call_really_used. */
+#define CALL_REALLY_USED_REGISTERS CALL_USED_REGISTERS
+
#define REG_ALLOC_ORDER \
{ 0, 1, 4, 5, 2, 3, 6, 7, 10, 11, 12, 13, 14, 15, 16, 17, 8, 9 \
, 42, 43, 44, 45, 46, 47, 48, 49, 34, 35, 36, 37, 38, 39, 40, 41 \
{ ARG_POINTER_REGNUM, FRAME_POINTER_REGNUM}, \
{ FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM}}
-#define CAN_ELIMINATE(FROM, TO) 1
-
#define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \
OFFSET = initial_offset (FROM, TO)
/* We can debug without frame pointers on the mn10300, so eliminate
them whenever possible. */
-#define FRAME_POINTER_REQUIRED 0
#define CAN_DEBUG_WITHOUT_FP
/* Value is the number of bytes of arguments automatically
#define FUNCTION_PROFILER(FILE, LABELNO) ;
-#define TRAMPOLINE_TEMPLATE(FILE) \
- do { \
- fprintf (FILE, "\tadd -4,sp\n"); \
- fprintf (FILE, "\t.long 0x0004fffa\n"); \
- fprintf (FILE, "\tmov (0,sp),a0\n"); \
- fprintf (FILE, "\tadd 4,sp\n"); \
- fprintf (FILE, "\tmov (13,a0),a1\n"); \
- fprintf (FILE, "\tmov (17,a0),a0\n"); \
- fprintf (FILE, "\tjmp (a0)\n"); \
- fprintf (FILE, "\t.long 0\n"); \
- fprintf (FILE, "\t.long 0\n"); \
- } while (0)
-
/* Length in units of the trampoline for entering a nested function. */
#define TRAMPOLINE_SIZE 0x1b
#define TRAMPOLINE_ALIGNMENT 32
-/* Emit RTL insns to initialize the variable parts of a trampoline.
- FNADDR is an RTX for the address of the function's pure code.
- CXT is an RTX for the static chain value for the function. */
-
-#define INITIALIZE_TRAMPOLINE(TRAMP, FNADDR, CXT) \
-{ \
- emit_move_insn (gen_rtx_MEM (SImode, plus_constant ((TRAMP), 0x14)), \
- (CXT)); \
- emit_move_insn (gen_rtx_MEM (SImode, plus_constant ((TRAMP), 0x18)), \
- (FNADDR)); \
-}
/* A C expression whose value is RTL representing the value of the return
address for the frame COUNT steps up from the current frame.
\f
#define HAVE_POST_INCREMENT (TARGET_AM33)
-/* GO_IF_LEGITIMATE_ADDRESS recognizes an RTL expression
- that is a valid memory address for an instruction.
- The MODE argument is the machine mode for the MEM expression
- that wants to use this address.
-
- The other macros defined here are used only in GO_IF_LEGITIMATE_ADDRESS,
- except for CONSTANT_ADDRESS_P which is actually
- machine-independent.
-
- On the mn10300, the value in the address register must be
- in the same memory space/segment as the effective address.
-
- This is problematical for reload since it does not understand
- that base+index != index+base in a memory reference.
-
- Note it is still possible to use reg+reg addressing modes,
- it's just much more difficult. For a discussion of a possible
- workaround and solution, see the comments in pa.c before the
- function record_unscaled_index_insn_codes. */
-
/* Accept either REG or SUBREG where a register is valid. */
#define RTX_OK_FOR_BASE_P(X, strict) \
&& REGNO_STRICT_OK_FOR_BASE_P (REGNO (SUBREG_REG (X)), \
(strict))))
-#define GO_IF_LEGITIMATE_ADDRESS(MODE, X, ADDR) \
-do \
- { \
- if (legitimate_address_p ((MODE), (X), REG_STRICT)) \
- goto ADDR; \
- } \
-while (0)
-
\f
-/* Try machine-dependent ways of modifying an illegitimate address
- to be legitimate. If we find one, return the new, valid address.
- This macro is used in only one place: `memory_address' in explow.c.
-
- OLDX is the address as it was before break_out_memory_refs was called.
- In some cases it is useful to look at this to decide what needs to be done.
-
- MODE and WIN are passed so that this macro can use
- GO_IF_LEGITIMATE_ADDRESS.
-
- It is always safe for this macro to do nothing. It exists to recognize
- opportunities to optimize the output. */
-
-#define LEGITIMIZE_ADDRESS(X, OLDX, MODE, WIN) \
-{ rtx orig_x = (X); \
- (X) = legitimize_address (X, OLDX, MODE); \
- if ((X) != orig_x && memory_address_p (MODE, X)) \
- goto WIN; }
-
-/* Go to LABEL if ADDR (a legitimate address expression)
- has an effect that depends on the machine mode it is used for. */
-
-#define GO_IF_MODE_DEPENDENT_ADDRESS(ADDR,LABEL)
/* Nonzero if the constant value X is a legitimate general operand.
It is given that X satisfies CONSTANT_P or is a CONST_DOUBLE. */
constants. Used for PIC-specific UNSPECs. */
#define OUTPUT_ADDR_CONST_EXTRA(STREAM, X, FAIL) \
do \
- if (GET_CODE (X) == UNSPEC && XVECLEN ((X), 0) == 1) \
+ if (GET_CODE (X) == UNSPEC) \
{ \
switch (XINT ((X), 1)) \
{ \
output_addr_const ((STREAM), XVECEXP ((X), 0, 0)); \
fputs ("@PLT", (STREAM)); \
break; \
+ case UNSPEC_GOTSYM_OFF: \
+ assemble_name (STREAM, GOT_SYMBOL_NAME); \
+ fputs ("-(", STREAM); \
+ output_addr_const (STREAM, XVECEXP (X, 0, 0)); \
+ fputs ("-.)", STREAM); \
+ break; \
default: \
goto FAIL; \
} \
than accessing full words. */
#define SLOW_BYTE_ACCESS 1
-/* Dispatch tables on the mn10300 are extremely expensive in terms of code
- and readonly data size. So we crank up the case threshold value to
- encourage a series of if/else comparisons to implement many small switch
- statements. In theory, this value could be increased much more if we
- were solely optimizing for space, but we keep it "reasonable" to avoid
- serious code efficiency lossage. */
-#define CASE_VALUES_THRESHOLD 6
-
#define NO_FUNCTION_CSE
/* According expr.c, a value of around 6 should minimize code size, and
for the MN10300 series, that's our primary concern. */
-#define MOVE_RATIO 6
+#define MOVE_RATIO(speed) 6
#define TEXT_SECTION_ASM_OP "\t.section .text"
#define DATA_SECTION_ASM_OP "\t.section .data"
#define ASM_APP_OFF "#NO_APP\n"
+#undef USER_LABEL_PREFIX
+#define USER_LABEL_PREFIX "_"
+
/* This says how to output the assembler to define a global
uninitialized but not common symbol.
Try to use asm_output_bss to implement this macro. */
#undef ASM_OUTPUT_LABELREF
#define ASM_OUTPUT_LABELREF(FILE, NAME) \
- fprintf (FILE, "_%s", (*targetm.strip_name_encoding) (NAME))
+ asm_fprintf (FILE, "%U%s", (*targetm.strip_name_encoding) (NAME))
#define ASM_PN_FORMAT "%s___%lu"
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