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/* Copyright (C) 2009-2015 Free Software Foundation, Inc.
Contributed by Anatoly Sokolov (aesok@post.ru)
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
GCC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
/* Not included in avr.c since this requires C front end. */
#include "config.h"
#include "system.h"
#include "coretypes.h"
#include "tm.h"
#include "tm_p.h"
#include "cpplib.h"
#include "hash-set.h"
#include "machmode.h"
#include "vec.h"
#include "double-int.h"
#include "input.h"
#include "alias.h"
#include "symtab.h"
#include "wide-int.h"
#include "inchash.h"
#include "tree.h"
#include "stor-layout.h"
#include "target.h"
#include "c-family/c-common.h"
#include "langhooks.h"
/* IDs for all the AVR builtins. */
enum avr_builtin_id
{
#define DEF_BUILTIN(NAME, N_ARGS, TYPE, CODE, LIBNAME) \
AVR_BUILTIN_ ## NAME,
#include "builtins.def"
#undef DEF_BUILTIN
AVR_BUILTIN_COUNT
};
/* Implement `TARGET_RESOLVE_OVERLOADED_PLUGIN'. */
static tree
avr_resolve_overloaded_builtin (unsigned int iloc, tree fndecl, void *vargs)
{
tree type0, type1, fold = NULL_TREE;
enum avr_builtin_id id = AVR_BUILTIN_COUNT;
location_t loc = (location_t) iloc;
vec<tree, va_gc> &args = * (vec<tree, va_gc>*) vargs;
switch (DECL_FUNCTION_CODE (fndecl))
{
default:
break;
case AVR_BUILTIN_ABSFX:
if (args.length() != 1)
{
error_at (loc, "%qs expects 1 argument but %d given",
"absfx", (int) args.length());
fold = error_mark_node;
break;
}
type0 = TREE_TYPE (args[0]);
if (!FIXED_POINT_TYPE_P (type0))
{
error_at (loc, "%qs expects a fixed-point value as argument",
"absfx");
fold = error_mark_node;
}
switch (TYPE_MODE (type0))
{
case QQmode: id = AVR_BUILTIN_ABSHR; break;
case HQmode: id = AVR_BUILTIN_ABSR; break;
case SQmode: id = AVR_BUILTIN_ABSLR; break;
case DQmode: id = AVR_BUILTIN_ABSLLR; break;
case HAmode: id = AVR_BUILTIN_ABSHK; break;
case SAmode: id = AVR_BUILTIN_ABSK; break;
case DAmode: id = AVR_BUILTIN_ABSLK; break;
case TAmode: id = AVR_BUILTIN_ABSLLK; break;
case UQQmode:
case UHQmode:
case USQmode:
case UDQmode:
case UHAmode:
case USAmode:
case UDAmode:
case UTAmode:
warning_at (loc, 0, "using %qs with unsigned type has no effect",
"absfx");
return args[0];
default:
error_at (loc, "no matching fixed-point overload found for %qs",
"absfx");
fold = error_mark_node;
break;
}
fold = targetm.builtin_decl (id, true);
if (fold != error_mark_node)
fold = build_function_call_vec (loc, vNULL, fold, &args, NULL);
break; // absfx
case AVR_BUILTIN_ROUNDFX:
if (args.length() != 2)
{
error_at (loc, "%qs expects 2 arguments but %d given",
"roundfx", (int) args.length());
fold = error_mark_node;
break;
}
type0 = TREE_TYPE (args[0]);
type1 = TREE_TYPE (args[1]);
if (!FIXED_POINT_TYPE_P (type0))
{
error_at (loc, "%qs expects a fixed-point value as first argument",
"roundfx");
fold = error_mark_node;
}
if (!INTEGRAL_TYPE_P (type1))
{
error_at (loc, "%qs expects an integer value as second argument",
"roundfx");
fold = error_mark_node;
}
switch (TYPE_MODE (type0))
{
case QQmode: id = AVR_BUILTIN_ROUNDHR; break;
case HQmode: id = AVR_BUILTIN_ROUNDR; break;
case SQmode: id = AVR_BUILTIN_ROUNDLR; break;
case DQmode: id = AVR_BUILTIN_ROUNDLLR; break;
case UQQmode: id = AVR_BUILTIN_ROUNDUHR; break;
case UHQmode: id = AVR_BUILTIN_ROUNDUR; break;
case USQmode: id = AVR_BUILTIN_ROUNDULR; break;
case UDQmode: id = AVR_BUILTIN_ROUNDULLR; break;
case HAmode: id = AVR_BUILTIN_ROUNDHK; break;
case SAmode: id = AVR_BUILTIN_ROUNDK; break;
case DAmode: id = AVR_BUILTIN_ROUNDLK; break;
case TAmode: id = AVR_BUILTIN_ROUNDLLK; break;
case UHAmode: id = AVR_BUILTIN_ROUNDUHK; break;
case USAmode: id = AVR_BUILTIN_ROUNDUK; break;
case UDAmode: id = AVR_BUILTIN_ROUNDULK; break;
case UTAmode: id = AVR_BUILTIN_ROUNDULLK; break;
default:
error_at (loc, "no matching fixed-point overload found for %qs",
"roundfx");
fold = error_mark_node;
break;
}
fold = targetm.builtin_decl (id, true);
if (fold != error_mark_node)
fold = build_function_call_vec (loc, vNULL, fold, &args, NULL);
break; // roundfx
case AVR_BUILTIN_COUNTLSFX:
if (args.length() != 1)
{
error_at (loc, "%qs expects 1 argument but %d given",
"countlsfx", (int) args.length());
fold = error_mark_node;
break;
}
type0 = TREE_TYPE (args[0]);
if (!FIXED_POINT_TYPE_P (type0))
{
error_at (loc, "%qs expects a fixed-point value as first argument",
"countlsfx");
fold = error_mark_node;
}
switch (TYPE_MODE (type0))
{
case QQmode: id = AVR_BUILTIN_COUNTLSHR; break;
case HQmode: id = AVR_BUILTIN_COUNTLSR; break;
case SQmode: id = AVR_BUILTIN_COUNTLSLR; break;
case DQmode: id = AVR_BUILTIN_COUNTLSLLR; break;
case UQQmode: id = AVR_BUILTIN_COUNTLSUHR; break;
case UHQmode: id = AVR_BUILTIN_COUNTLSUR; break;
case USQmode: id = AVR_BUILTIN_COUNTLSULR; break;
case UDQmode: id = AVR_BUILTIN_COUNTLSULLR; break;
case HAmode: id = AVR_BUILTIN_COUNTLSHK; break;
case SAmode: id = AVR_BUILTIN_COUNTLSK; break;
case DAmode: id = AVR_BUILTIN_COUNTLSLK; break;
case TAmode: id = AVR_BUILTIN_COUNTLSLLK; break;
case UHAmode: id = AVR_BUILTIN_COUNTLSUHK; break;
case USAmode: id = AVR_BUILTIN_COUNTLSUK; break;
case UDAmode: id = AVR_BUILTIN_COUNTLSULK; break;
case UTAmode: id = AVR_BUILTIN_COUNTLSULLK; break;
default:
error_at (loc, "no matching fixed-point overload found for %qs",
"countlsfx");
fold = error_mark_node;
break;
}
fold = targetm.builtin_decl (id, true);
if (fold != error_mark_node)
fold = build_function_call_vec (loc, vNULL, fold, &args, NULL);
break; // countlsfx
}
return fold;
}
/* Implement `REGISTER_TARGET_PRAGMAS'. */
void
avr_register_target_pragmas (void)
{
int i;
gcc_assert (ADDR_SPACE_GENERIC == ADDR_SPACE_RAM);
/* Register address spaces. The order must be the same as in the respective
enum from avr.h (or designated initializers must be used in avr.c). */
for (i = 0; i < ADDR_SPACE_COUNT; i++)
{
gcc_assert (i == avr_addrspace[i].id);
if (!ADDR_SPACE_GENERIC_P (i))
c_register_addr_space (avr_addrspace[i].name, avr_addrspace[i].id);
}
targetm.resolve_overloaded_builtin = avr_resolve_overloaded_builtin;
}
/* Transform LO into uppercase and write the result to UP.
You must provide enough space for UP. Return UP. */
static char*
avr_toupper (char *up, const char *lo)
{
char *up0 = up;
for (; *lo; lo++, up++)
*up = TOUPPER (*lo);
*up = '\0';
return up0;
}
/* Worker function for TARGET_CPU_CPP_BUILTINS. */
void
avr_cpu_cpp_builtins (struct cpp_reader *pfile)
{
int i;
builtin_define_std ("AVR");
/* __AVR_DEVICE_NAME__ and avr_mcu_types[].macro like __AVR_ATmega8__
are defined by -D command option, see device-specs file. */
if (avr_arch->macro)
cpp_define_formatted (pfile, "__AVR_ARCH__=%s", avr_arch->macro);
if (AVR_HAVE_RAMPD) cpp_define (pfile, "__AVR_HAVE_RAMPD__");
if (AVR_HAVE_RAMPX) cpp_define (pfile, "__AVR_HAVE_RAMPX__");
if (AVR_HAVE_RAMPY) cpp_define (pfile, "__AVR_HAVE_RAMPY__");
if (AVR_HAVE_RAMPZ) cpp_define (pfile, "__AVR_HAVE_RAMPZ__");
if (AVR_HAVE_ELPM) cpp_define (pfile, "__AVR_HAVE_ELPM__");
if (AVR_HAVE_ELPMX) cpp_define (pfile, "__AVR_HAVE_ELPMX__");
if (AVR_HAVE_MOVW) cpp_define (pfile, "__AVR_HAVE_MOVW__");
if (AVR_HAVE_LPMX) cpp_define (pfile, "__AVR_HAVE_LPMX__");
if (avr_arch->asm_only)
cpp_define (pfile, "__AVR_ASM_ONLY__");
if (AVR_HAVE_MUL)
{
cpp_define (pfile, "__AVR_ENHANCED__");
cpp_define (pfile, "__AVR_HAVE_MUL__");
}
if (avr_arch->have_jmp_call)
{
cpp_define (pfile, "__AVR_MEGA__");
cpp_define (pfile, "__AVR_HAVE_JMP_CALL__");
}
if (AVR_XMEGA)
cpp_define (pfile, "__AVR_XMEGA__");
if (AVR_TINY)
{
cpp_define (pfile, "__AVR_TINY__");
/* Define macro "__AVR_TINY_PM_BASE_ADDRESS__" with mapped program memory
start address. This macro shall be used where mapped program
memory is accessed, eg. copying data section (__do_copy_data)
contents to data memory region.
NOTE:
Program memory of AVR_TINY devices cannot be accessed directly,
it has been mapped to the data memory. For AVR_TINY devices
(ATtiny4/5/9/10/20 and 40) mapped program memory starts at 0x4000. */
cpp_define (pfile, "__AVR_TINY_PM_BASE_ADDRESS__=0x4000");
}
if (AVR_HAVE_EIJMP_EICALL)
{
cpp_define (pfile, "__AVR_HAVE_EIJMP_EICALL__");
cpp_define (pfile, "__AVR_3_BYTE_PC__");
}
else
{
cpp_define (pfile, "__AVR_2_BYTE_PC__");
}
if (AVR_HAVE_8BIT_SP)
cpp_define (pfile, "__AVR_HAVE_8BIT_SP__");
else
cpp_define (pfile, "__AVR_HAVE_16BIT_SP__");
if (AVR_HAVE_SPH)
cpp_define (pfile, "__AVR_HAVE_SPH__");
else
cpp_define (pfile, "__AVR_SP8__");
if (TARGET_NO_INTERRUPTS)
cpp_define (pfile, "__NO_INTERRUPTS__");
if (TARGET_SKIP_BUG)
{
cpp_define (pfile, "__AVR_ERRATA_SKIP__");
if (AVR_HAVE_JMP_CALL)
cpp_define (pfile, "__AVR_ERRATA_SKIP_JMP_CALL__");
}
if (TARGET_RMW)
cpp_define (pfile, "__AVR_ISA_RMW__");
cpp_define_formatted (pfile, "__AVR_SFR_OFFSET__=0x%x",
avr_arch->sfr_offset);
#ifdef WITH_AVRLIBC
cpp_define (pfile, "__WITH_AVRLIBC__");
#endif /* WITH_AVRLIBC */
/* Define builtin macros so that the user can easily query whether
non-generic address spaces (and which) are supported or not.
This is only supported for C. For C++, a language extension is needed
(as mentioned in ISO/IEC DTR 18037; Annex F.2) which is not
implemented in GCC up to now. */
if (lang_GNU_C ())
{
for (i = 0; i < ADDR_SPACE_COUNT; i++)
if (!ADDR_SPACE_GENERIC_P (i)
/* Only supply __FLASH<n> macro if the address space is reasonable
for this target. The address space qualifier itself is still
supported, but using it will throw an error. */
&& avr_addrspace[i].segment < avr_n_flash
/* Only support __MEMX macro if we have LPM. */
&& (AVR_HAVE_LPM || avr_addrspace[i].pointer_size <= 2))
{
const char *name = avr_addrspace[i].name;
char *Name = (char*) alloca (1 + strlen (name));
cpp_define (pfile, avr_toupper (Name, name));
}
}
/* Define builtin macros so that the user can easily query whether or
not a specific builtin is available. */
#define DEF_BUILTIN(NAME, N_ARGS, TYPE, CODE, LIBNAME) \
cpp_define (pfile, "__BUILTIN_AVR_" #NAME);
#include "builtins.def"
#undef DEF_BUILTIN
/* Builtin macros for the __int24 and __uint24 type. */
cpp_define_formatted (pfile, "__INT24_MAX__=8388607%s",
INT_TYPE_SIZE == 8 ? "LL" : "L");
cpp_define (pfile, "__INT24_MIN__=(-__INT24_MAX__-1)");
cpp_define_formatted (pfile, "__UINT24_MAX__=16777215%s",
INT_TYPE_SIZE == 8 ? "ULL" : "UL");
}