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Commit 4c45af42 by Kazu Hirata Committed by Kazu Hirata
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xtensa-protos.h: Remove the prototype for xtensa_builtin_saveregs. 

	* config/xtensa/xtensa-protos.h: Remove the prototype for
	xtensa_builtin_saveregs.
	* config/xtensa/xtensa.c (TARGET_PROMOTE_FUNCTION_ARGS): New.
	(TARGET_PROMOTE_FUNCTION_RETURN): Likewise.
	(TARGET_PROMOTE_PROTOTYPES): Likewise.
	(TARGET_STRUCT_VALUE_RTX): Likewise.
	(TARGET_RETURN_IN_MEMORY): Likewise.
	(TARGET_EXPAND_BUILTIN_SAVEREGS): Likewise.
	(xtensa_builtin_saveregs): Make it static.
	(xtensa_return_in_memory): New.
	* config/xtensa/xtensa.h (PROMOTE_FUNCTION_ARGS: Remove.
	(PROMOTE_FUNCTION_RETURN): Likewise.
	(PROMOTE_PROTOTYPES): Likewise.
	(STRUCT_VALUE): Likewise.
	(RETURN_IN_MEMORY): Likewise.
	(EXPAND_BUILTIN_SAVEREGS): Likewise.

From-SVN: r76644
parent 1cc9f5f5
Showing with 49 additions and 41 deletions
gcc/ChangeLog
2004-01-26 Kazu Hirata <kazu@cs.umass.edu>
* config/xtensa/xtensa-protos.h: Remove the prototype for
xtensa_builtin_saveregs.
* config/xtensa/xtensa.c (TARGET_PROMOTE_FUNCTION_ARGS): New.
(TARGET_PROMOTE_FUNCTION_RETURN): Likewise.
(TARGET_PROMOTE_PROTOTYPES): Likewise.
(TARGET_STRUCT_VALUE_RTX): Likewise.
(TARGET_RETURN_IN_MEMORY): Likewise.
(TARGET_EXPAND_BUILTIN_SAVEREGS): Likewise.
(xtensa_builtin_saveregs): Make it static.
(xtensa_return_in_memory): New.
* config/xtensa/xtensa.h (PROMOTE_FUNCTION_ARGS: Remove.
(PROMOTE_FUNCTION_RETURN): Likewise.
(PROMOTE_PROTOTYPES): Likewise.
(STRUCT_VALUE): Likewise.
(RETURN_IN_MEMORY): Likewise.
(EXPAND_BUILTIN_SAVEREGS): Likewise.
2004-01-26 Kazu Hirata <kazu@cs.umass.edu>
* config/arm/arm.c (TARGET_SETUP_INCOMING_VARARGS): New.
(arm_setup_incoming_varargs): Likewise.
* config/arm/arm.h (SETUP_INCOMING_VARARGS): Remove.
......
gcc/config/xtensa/xtensa-protos.h
/* Prototypes of target machine for GNU compiler for Xtensa.
Copyright 2001,2002,2003 Free Software Foundation, Inc.
Copyright 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
Contributed by Bob Wilson (bwilson@tensilica.com) at Tensilica.
This file is part of GCC.
......@@ -84,7 +84,6 @@ extern void print_operand (FILE *, rtx, int);
extern void print_operand_address (FILE *, rtx);
extern void xtensa_output_literal (FILE *, rtx, enum machine_mode, int);
extern rtx xtensa_return_addr (int, rtx);
extern rtx xtensa_builtin_saveregs (void);
extern enum reg_class xtensa_preferred_reload_class (rtx, enum reg_class, int);
extern enum reg_class xtensa_secondary_reload_class (enum reg_class,
enum machine_mode, rtx,
......
gcc/config/xtensa/xtensa.c
/* Subroutines for insn-output.c for Tensilica's Xtensa architecture.
Copyright 2001,2002,2003 Free Software Foundation, Inc.
Copyright 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
Contributed by Bob Wilson (bwilson@tensilica.com) at Tensilica.
This file is part of GCC.
......@@ -200,12 +200,14 @@ static enum machine_mode xtensa_find_mode_for_size (unsigned);
static struct machine_function * xtensa_init_machine_status (void);
static void printx (FILE *, signed int);
static void xtensa_function_epilogue (FILE *, HOST_WIDE_INT);
static rtx xtensa_builtin_saveregs (void);
static unsigned int xtensa_multibss_section_type_flags (tree, const char *,
int) ATTRIBUTE_UNUSED;
static void xtensa_select_rtx_section (enum machine_mode, rtx,
unsigned HOST_WIDE_INT);
static bool xtensa_rtx_costs (rtx, int, int, int *);
static tree xtensa_build_builtin_va_list (void);
static bool xtensa_return_in_memory (tree, tree);
static int current_function_arg_words;
static const int reg_nonleaf_alloc_order[FIRST_PSEUDO_REGISTER] =
......@@ -237,6 +239,21 @@ static const int reg_nonleaf_alloc_order[FIRST_PSEUDO_REGISTER] =
#undef TARGET_BUILD_BUILTIN_VA_LIST
#define TARGET_BUILD_BUILTIN_VA_LIST xtensa_build_builtin_va_list
#undef TARGET_PROMOTE_FUNCTION_ARGS
#define TARGET_PROMOTE_FUNCTION_ARGS hook_bool_tree_true
#undef TARGET_PROMOTE_FUNCTION_RETURN
#define TARGET_PROMOTE_FUNCTION_RETURN hook_bool_tree_true
#undef TARGET_PROMOTE_PROTOTYPES
#define TARGET_PROMOTE_PROTOTYPES hook_bool_tree_true
#undef TARGET_STRUCT_VALUE_RTX
#define TARGET_STRUCT_VALUE_RTX hook_rtx_tree_int_null
#undef TARGET_RETURN_IN_MEMORY
#define TARGET_RETURN_IN_MEMORY xtensa_return_in_memory
#undef TARGET_EXPAND_BUILTIN_SAVEREGS
#define TARGET_EXPAND_BUILTIN_SAVEREGS xtensa_builtin_saveregs
struct gcc_target targetm = TARGET_INITIALIZER;
......@@ -2355,7 +2372,7 @@ xtensa_build_builtin_va_list (void)
/* Save the incoming argument registers on the stack. Returns the
address of the saved registers. */
rtx
static rtx
xtensa_builtin_saveregs (void)
{
rtx gp_regs, dest;
......@@ -3011,4 +3028,11 @@ xtensa_rtx_costs (rtx x, int code, int outer_code, int *total)
}
}
static bool
xtensa_return_in_memory (tree type, tree fntype ATTRIBUTE_UNUSED)
{
return ((unsigned HOST_WIDE_INT) int_size_in_bytes (type)
> 4 * UNITS_PER_WORD);
}
#include "gt-xtensa.h"
gcc/config/xtensa/xtensa.h
/* Definitions of Tensilica's Xtensa target machine for GNU compiler.
Copyright 2001,2002,2003 Free Software Foundation, Inc.
Copyright 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
Contributed by Bob Wilson (bwilson@tensilica.com) at Tensilica.
This file is part of GCC.
......@@ -204,15 +204,6 @@ extern unsigned xtensa_current_frame_size;
} \
} while (0)
/* The promotion described by `PROMOTE_MODE' should also be done for
outgoing function arguments. */
#define PROMOTE_FUNCTION_ARGS
/* The promotion described by `PROMOTE_MODE' should also be done for
the return value of functions. Note: `FUNCTION_VALUE' must perform
the same promotions done by `PROMOTE_MODE'. */
#define PROMOTE_FUNCTION_RETURN
/* Imitate the way many other C compilers handle alignment of
bitfields and the structures that contain them. */
#define PCC_BITFIELD_TYPE_MATTERS 1
......@@ -239,10 +230,6 @@ extern unsigned xtensa_current_frame_size;
|| TREE_CODE (TYPE) == UNION_TYPE \
|| TREE_CODE (TYPE) == RECORD_TYPE)) ? BITS_PER_WORD : (ALIGN))
/* An argument declared as 'char' or 'short' in a prototype should
actually be passed as an 'int'. */
#define PROMOTE_PROTOTYPES 1
/* Operations between registers always perform the operation
on the full register even if a narrower mode is specified. */
#define WORD_REGISTER_OPERATIONS
......@@ -425,9 +412,6 @@ extern char xtensa_hard_regno_mode_ok[][FIRST_PSEUDO_REGISTER];
a real pain to get them reloaded. */
#define FPCC_REGNUM (BR_REG_FIRST + 0)
/* Pass structure value address as an "invisible" first argument. */
#define STRUCT_VALUE 0
/* It is as good or better to call a constant function address than to
call an address kept in a register. */
#define NO_FUNCTION_CSE 1
......@@ -701,20 +685,10 @@ extern enum reg_class xtensa_char_to_class[256];
/* Don't worry about compatibility with PCC. */
#define DEFAULT_PCC_STRUCT_RETURN 0
/* For Xtensa, up to 4 words can be returned in registers. (It would
have been nice to allow up to 6 words in registers but GCC cannot
support that. The return value must be given one of the standard
MODE_INT modes, and there is no 6 word mode. Instead, if we try to
return a 6 word structure, GCC selects the next biggest mode
(OImode, 8 words) and then the register allocator fails because
there is no 8-register group beginning with a10.) */
#define RETURN_IN_MEMORY(TYPE) \
((unsigned HOST_WIDE_INT) int_size_in_bytes (TYPE) > 4 * UNITS_PER_WORD)
/* Define how to find the value returned by a library function
assuming the value has mode MODE. Because we have defined
PROMOTE_FUNCTION_RETURN, we have to perform the same promotions as
PROMOTE_MODE. */
TARGET_PROMOTE_FUNCTION_RETURN that returns true, we have to
perform the same promotions as PROMOTE_MODE. */
#define XTENSA_LIBCALL_VALUE(MODE, OUTGOINGP) \
gen_rtx_REG ((GET_MODE_CLASS (MODE) == MODE_INT \
&& GET_MODE_SIZE (MODE) < UNITS_PER_WORD) \
......@@ -932,14 +906,6 @@ typedef struct xtensa_args {
0, VOIDmode, 1, addr, Pmode); \
} while (0)
/* If defined, is a C expression that produces the machine-specific
code for a call to '__builtin_saveregs'. This code will be moved
to the very beginning of the function, before any parameter access
are made. The return value of this function should be an RTX that
contains the value to use as the return of '__builtin_saveregs'. */
#define EXPAND_BUILTIN_SAVEREGS \
xtensa_builtin_saveregs
/* Implement `va_start' for varargs and stdarg. */
#define EXPAND_BUILTIN_VA_START(valist, nextarg) \
xtensa_va_start (valist, nextarg)
......
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