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Diffstat (limited to 'gcc-4.9/gcc/config/moxie/moxie.h')
| -rw-r--r-- | gcc-4.9/gcc/config/moxie/moxie.h | 491 |
1 files changed, 491 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/config/moxie/moxie.h b/gcc-4.9/gcc/config/moxie/moxie.h new file mode 100644 index 000000000..5379a4311 --- /dev/null +++ b/gcc-4.9/gcc/config/moxie/moxie.h @@ -0,0 +1,491 @@ +/* Target Definitions for moxie. + Copyright (C) 2008-2014 Free Software Foundation, Inc. + Contributed by Anthony Green. + + 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/>. */ + +#ifndef GCC_MOXIE_H +#define GCC_MOXIE_H + +#undef STARTFILE_SPEC +#define STARTFILE_SPEC "%{!mno-crt0:crt0%O%s} crti.o%s crtbegin.o%s" + +/* Provide an ENDFILE_SPEC appropriate for svr4. Here we tack on our own + magical crtend.o file (see crtstuff.c) which provides part of the + support for getting C++ file-scope static object constructed before + entering `main', followed by the normal svr3/svr4 "finalizer" file, + which is either `gcrtn.o' or `crtn.o'. */ + +#undef ENDFILE_SPEC +#define ENDFILE_SPEC "crtend.o%s crtn.o%s" + +/* Provide a LIB_SPEC appropriate for svr4. Here we tack on the default + standard C library (unless we are building a shared library) and + the simulator BSP code. */ + +#undef LIB_SPEC +#define LIB_SPEC "%{!shared:%{!symbolic:-lc}}" + +#undef LINK_SPEC +#define LINK_SPEC "%{h*} %{v:-V} %{!mel:-EB} %{mel:-EL}\ + %{static:-Bstatic} %{shared:-shared} %{symbolic:-Bsymbolic}" + +#ifndef MULTILIB_DEFAULTS +#define MULTILIB_DEFAULTS { "meb" } +#endif + +/* Layout of Source Language Data Types */ + +#define INT_TYPE_SIZE 32 +#define SHORT_TYPE_SIZE 16 +#define LONG_TYPE_SIZE 32 +#define LONG_LONG_TYPE_SIZE 64 + +#define FLOAT_TYPE_SIZE 32 +#define DOUBLE_TYPE_SIZE 64 +#define LONG_DOUBLE_TYPE_SIZE 64 + +#define DEFAULT_SIGNED_CHAR 1 + +#undef SIZE_TYPE +#define SIZE_TYPE "unsigned int" + +#undef PTRDIFF_TYPE +#define PTRDIFF_TYPE "int" + +#undef WCHAR_TYPE +#define WCHAR_TYPE "long int" + +#undef WCHAR_TYPE_SIZE +#define WCHAR_TYPE_SIZE BITS_PER_WORD + +/* Registers... + + $fp - frame pointer + $sp - stack pointer + $r0 - general purpose 32-bit register. + $r1 - general purpose 32-bit register. + $r2 - general purpose 32-bit register. + $r3 - general purpose 32-bit register. + $r4 - general purpose 32-bit register. + $r5 - general purpose 32-bit register. + $r6 - general purpose 32-bit register. + $r7 - general purpose 32-bit register. + $r8 - general purpose 32-bit register. + $r9 - general purpose 32-bit register. + $r10 - general purpose 32-bit register. + $r11 - general purpose 32-bit register. + $r12 - general purpose 32-bit register. + $r13 - reserved for execution environment. + + Special Registers... + + $pc - 32-bit program counter. + +*/ + +#define REGISTER_NAMES { \ + "$fp", "$sp", "$r0", "$r1", \ + "$r2", "$r3", "$r4", "$r5", \ + "$r6", "$r7", "$r8", "$r9", \ + "$r10", "$r11", "$r12", "$r13", \ + "?fp", "?ap", "$pc", "?cc" } + +#define MOXIE_FP 0 +#define MOXIE_SP 1 +#define MOXIE_R0 2 +#define MOXIE_R1 3 +#define MOXIE_R2 4 +#define MOXIE_R3 5 +#define MOXIE_R4 6 +#define MOXIE_R5 7 +#define MOXIE_R6 8 +#define MOXIE_R7 9 +#define MOXIE_R8 10 +#define MOXIE_R9 11 +#define MOXIE_R10 12 +#define MOXIE_R11 13 +#define MOXIE_R12 14 +#define MOXIE_R13 15 +#define MOXIE_QFP 16 +#define MOXIE_QAP 17 +#define MOXIE_PC 18 +#define MOXIE_CC 19 + +#define FIRST_PSEUDO_REGISTER 20 + +enum reg_class +{ + NO_REGS, + GENERAL_REGS, + SPECIAL_REGS, + CC_REGS, + ALL_REGS, + LIM_REG_CLASSES +}; + + +#define REG_CLASS_CONTENTS \ +{ { 0x00000000 }, /* Empty */ \ + { 0x0003FFFF }, /* $fp, $sp, $r0 to $r13, ?fp */ \ + { 0x00040000 }, /* $pc */ \ + { 0x00080000 }, /* ?cc */ \ + { 0x000FFFFF } /* All registers */ \ +} + +#define N_REG_CLASSES LIM_REG_CLASSES + +#define REG_CLASS_NAMES {\ + "NO_REGS", \ + "GENERAL_REGS", \ + "SPECIAL_REGS", \ + "CC_REGS", \ + "ALL_REGS" } + +#define FIXED_REGISTERS { 1, 1, 0, 0, \ + 0, 0, 0, 0, \ + 0, 0, 0, 0, \ + 0, 0, 0, 1, \ + 1, 1, 1, 1 } + +#define CALL_USED_REGISTERS { 1, 1, 1, 1, \ + 1, 1, 1, 1, \ + 0, 0, 0, 0, \ + 0, 0, 1, 1, \ + 1, 1, 1, 1 } + +/* We can't copy to or from our CC register. */ +#define AVOID_CCMODE_COPIES 1 + +/* A C expression that is nonzero if it is permissible to store a + value of mode MODE in hard register number REGNO (or in several + registers starting with that one). All gstore registers are + equivalent, so we can set this to 1. */ +#define HARD_REGNO_MODE_OK(R,M) 1 + +/* A C expression whose value is a register class containing hard + register REGNO. */ +#define REGNO_REG_CLASS(R) ((R < MOXIE_PC) ? GENERAL_REGS : \ + (R == MOXIE_CC ? CC_REGS : SPECIAL_REGS)) + +/* A C expression for the number of consecutive hard registers, + starting at register number REGNO, required to hold a value of mode + MODE. */ +#define HARD_REGNO_NREGS(REGNO, MODE) \ + ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) \ + / UNITS_PER_WORD) + +/* A C expression that is nonzero if a value of mode MODE1 is + accessible in mode MODE2 without copying. */ +#define MODES_TIEABLE_P(MODE1, MODE2) 1 + +/* The Overall Framework of an Assembler File */ + +#undef ASM_SPEC +#define ASM_SPEC "%{!mel:-EB} %{mel:-EL}" +#define ASM_COMMENT_START "#" +#define ASM_APP_ON "" +#define ASM_APP_OFF "" + +#define FILE_ASM_OP "\t.file\n" + +/* Switch to the text or data segment. */ +#define TEXT_SECTION_ASM_OP "\t.text" +#define DATA_SECTION_ASM_OP "\t.data" + +/* Assembler Commands for Alignment */ + +#define ASM_OUTPUT_ALIGN(STREAM,POWER) \ + fprintf (STREAM, "\t.p2align\t%d\n", POWER); + +/* A C compound statement to output to stdio stream STREAM the + assembler syntax for an instruction operand X. */ +#define PRINT_OPERAND(STREAM, X, CODE) moxie_print_operand (STREAM, X, CODE) + +#define PRINT_OPERAND_ADDRESS(STREAM ,X) moxie_print_operand_address (STREAM, X) + +/* Output and Generation of Labels */ + +#define GLOBAL_ASM_OP "\t.global\t" + +/* Passing Arguments in Registers */ + +/* A C type for declaring a variable that is used as the first + argument of `FUNCTION_ARG' and other related values. */ +#define CUMULATIVE_ARGS unsigned int + +/* If defined, the maximum amount of space required for outgoing arguments + will be computed and placed into the variable + `current_function_outgoing_args_size'. No space will be pushed + onto the stack for each call; instead, the function prologue should + increase the stack frame size by this amount. */ +#define ACCUMULATE_OUTGOING_ARGS 1 + +/* A C statement (sans semicolon) for initializing the variable CUM + for the state at the beginning of the argument list. + For moxie, the first arg is passed in register 2 (aka $r0). */ +#define INIT_CUMULATIVE_ARGS(CUM,FNTYPE,LIBNAME,FNDECL,N_NAMED_ARGS) \ + (CUM = MOXIE_R0) + +/* How Scalar Function Values Are Returned */ + +/* STACK AND CALLING */ + +/* Define this macro if pushing a word onto the stack moves the stack + pointer to a smaller address. */ +#define STACK_GROWS_DOWNWARD + +#define INITIAL_FRAME_POINTER_OFFSET(DEPTH) (DEPTH) = 0 + +/* Offset from the frame pointer to the first local variable slot to + be allocated. */ +#define STARTING_FRAME_OFFSET 0 + +/* Define this if the above stack space is to be considered part of the + space allocated by the caller. */ +#define OUTGOING_REG_PARM_STACK_SPACE(FNTYPE) 1 +#define STACK_PARMS_IN_REG_PARM_AREA + +/* Define this if it is the responsibility of the caller to allocate + the area reserved for arguments passed in registers. */ +#define REG_PARM_STACK_SPACE(FNDECL) (6 * UNITS_PER_WORD) + +/* Offset from the argument pointer register to the first argument's + address. On some machines it may depend on the data type of the + function. */ +#define FIRST_PARM_OFFSET(F) 12 + +/* Define this macro to nonzero value if the addresses of local variable slots + are at negative offsets from the frame pointer. */ +#define FRAME_GROWS_DOWNWARD 1 + +/* Define this macro as a C expression that is nonzero for registers that are + used by the epilogue or the return pattern. The stack and frame + pointer registers are already assumed to be used as needed. */ +#define EPILOGUE_USES(R) (R == MOXIE_R5) + +/* A C expression whose value is RTL representing the location of the + incoming return address at the beginning of any function, before + the prologue. */ +#define INCOMING_RETURN_ADDR_RTX \ + gen_frame_mem (Pmode, \ + plus_constant (Pmode, stack_pointer_rtx, UNITS_PER_WORD)) + +/* Describe how we implement __builtin_eh_return. */ +#define EH_RETURN_DATA_REGNO(N) ((N) < 4 ? (N+2) : INVALID_REGNUM) + +/* Store the return handler into the call frame. */ +#define EH_RETURN_HANDLER_RTX \ + gen_frame_mem (Pmode, \ + plus_constant (Pmode, frame_pointer_rtx, UNITS_PER_WORD)) + +/* Storage Layout */ + +#define BITS_BIG_ENDIAN 0 +#define BYTES_BIG_ENDIAN ( ! TARGET_LITTLE_ENDIAN ) +#define WORDS_BIG_ENDIAN ( ! TARGET_LITTLE_ENDIAN ) + +/* Alignment required for a function entry point, in bits. */ +#define FUNCTION_BOUNDARY 16 + +/* Define this macro as a C expression which is nonzero if accessing + less than a word of memory (i.e. a `char' or a `short') is no + faster than accessing a word of memory. */ +#define SLOW_BYTE_ACCESS 1 + +/* Number of storage units in a word; normally the size of a + general-purpose register, a power of two from 1 or 8. */ +#define UNITS_PER_WORD 4 + +/* Define this macro to the minimum alignment enforced by hardware + for the stack pointer on this machine. The definition is a C + expression for the desired alignment (measured in bits). */ +#define STACK_BOUNDARY 32 + +/* Normal alignment required for function parameters on the stack, in + bits. All stack parameters receive at least this much alignment + regardless of data type. */ +#define PARM_BOUNDARY 32 + +/* Alignment of field after `int : 0' in a structure. */ +#define EMPTY_FIELD_BOUNDARY 32 + +/* No data type wants to be aligned rounder than this. */ +#define BIGGEST_ALIGNMENT 32 + +/* The best alignment to use in cases where we have a choice. */ +#define FASTEST_ALIGNMENT 32 + +/* Every structures size must be a multiple of 8 bits. */ +#define STRUCTURE_SIZE_BOUNDARY 8 + +/* Look at the fundamental type that is used for a bit-field and use + that to impose alignment on the enclosing structure. + struct s {int a:8}; should have same alignment as "int", not "char". */ +#define PCC_BITFIELD_TYPE_MATTERS 1 + +/* Largest integer machine mode for structures. If undefined, the default + is GET_MODE_SIZE(DImode). */ +#define MAX_FIXED_MODE_SIZE 32 + +/* Make strings word-aligned so strcpy from constants will be faster. */ +#define CONSTANT_ALIGNMENT(EXP, ALIGN) \ + ((TREE_CODE (EXP) == STRING_CST \ + && (ALIGN) < FASTEST_ALIGNMENT) \ + ? FASTEST_ALIGNMENT : (ALIGN)) + +/* Make arrays of chars word-aligned for the same reasons. */ +#define DATA_ALIGNMENT(TYPE, ALIGN) \ + (TREE_CODE (TYPE) == ARRAY_TYPE \ + && TYPE_MODE (TREE_TYPE (TYPE)) == QImode \ + && (ALIGN) < FASTEST_ALIGNMENT ? FASTEST_ALIGNMENT : (ALIGN)) + +/* Set this nonzero if move instructions will actually fail to work + when given unaligned data. */ +#define STRICT_ALIGNMENT 1 + +/* Generating Code for Profiling */ +#define FUNCTION_PROFILER(FILE,LABELNO) (abort (), 0) + +/* Trampolines for Nested Functions. */ +#define TRAMPOLINE_SIZE (2 + 6 + 6 + 2 + 2 + 6) + +/* Alignment required for trampolines, in bits. */ +#define TRAMPOLINE_ALIGNMENT 32 + +/* An alias for the machine mode for pointers. */ +#define Pmode SImode + +/* An alias for the machine mode used for memory references to + functions being called, in `call' RTL expressions. */ +#define FUNCTION_MODE QImode + +/* The register number of the stack pointer register, which must also + be a fixed register according to `FIXED_REGISTERS'. */ +#define STACK_POINTER_REGNUM MOXIE_SP + +/* The register number of the frame pointer register, which is used to + access automatic variables in the stack frame. */ +#define FRAME_POINTER_REGNUM MOXIE_QFP + +/* The register number of the arg pointer register, which is used to + access the function's argument list. */ +#define ARG_POINTER_REGNUM MOXIE_QAP + +#define HARD_FRAME_POINTER_REGNUM MOXIE_FP + +#define ELIMINABLE_REGS \ +{{ FRAME_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM }, \ + { ARG_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM }} + +/* This macro is similar to `INITIAL_FRAME_POINTER_OFFSET'. It + specifies the initial difference between the specified pair of + registers. This macro must be defined if `ELIMINABLE_REGS' is + defined. */ +#define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \ + do { \ + (OFFSET) = moxie_initial_elimination_offset ((FROM), (TO)); \ + } while (0) + +/* A C expression that is nonzero if REGNO is the number of a hard + register in which function arguments are sometimes passed. */ +#define FUNCTION_ARG_REGNO_P(r) (r >= MOXIE_R0 && r <= MOXIE_R5) + +/* A macro whose definition is the name of the class to which a valid + base register must belong. A base register is one used in an + address which is the register value plus a displacement. */ +#define BASE_REG_CLASS GENERAL_REGS + +#define INDEX_REG_CLASS NO_REGS + +#define HARD_REGNO_OK_FOR_BASE_P(NUM) \ + ((unsigned) (NUM) < FIRST_PSEUDO_REGISTER \ + && (REGNO_REG_CLASS(NUM) == GENERAL_REGS \ + || (NUM) == HARD_FRAME_POINTER_REGNUM)) + +/* A C expression which is nonzero if register number NUM is suitable + for use as a base register in operand addresses. */ +#ifdef REG_OK_STRICT +#define REGNO_OK_FOR_BASE_P(NUM) \ + (HARD_REGNO_OK_FOR_BASE_P(NUM) \ + || HARD_REGNO_OK_FOR_BASE_P(reg_renumber[(NUM)])) +#else +#define REGNO_OK_FOR_BASE_P(NUM) \ + ((NUM) >= FIRST_PSEUDO_REGISTER || HARD_REGNO_OK_FOR_BASE_P(NUM)) +#endif + +/* A C expression which is nonzero if register number NUM is suitable + for use as an index register in operand addresses. */ +#define REGNO_OK_FOR_INDEX_P(NUM) MOXIE_FP + +/* The maximum number of bytes that a single instruction can move + quickly between memory and registers or between two memory + locations. */ +#define MOVE_MAX 4 +#define TRULY_NOOP_TRUNCATION(op,ip) 1 + +/* All load operations zero extend. */ +#define LOAD_EXTEND_OP(MEM) ZERO_EXTEND + +/* A number, the maximum number of registers that can appear in a + valid memory address. */ +#define MAX_REGS_PER_ADDRESS 1 + +#define TRULY_NOOP_TRUNCATION(op,ip) 1 + +/* An alias for a machine mode name. This is the machine mode that + elements of a jump-table should have. */ +#define CASE_VECTOR_MODE SImode + +/* A C compound statement with a conditional `goto LABEL;' executed + if X (an RTX) is a legitimate memory address on the target machine + for a memory operand of mode MODE. */ +#define GO_IF_LEGITIMATE_ADDRESS(MODE,X,LABEL) \ + do { \ + if (GET_CODE(X) == PLUS) \ + { \ + rtx op1,op2; \ + op1 = XEXP(X,0); \ + op2 = XEXP(X,1); \ + if (GET_CODE(op1) == REG \ + && CONSTANT_ADDRESS_P(op2) \ + && REGNO_OK_FOR_BASE_P(REGNO(op1))) \ + goto LABEL; \ + } \ + if (REG_P (X) && REGNO_OK_FOR_BASE_P (REGNO (X))) \ + goto LABEL; \ + if (GET_CODE (X) == SYMBOL_REF \ + || GET_CODE (X) == LABEL_REF \ + || GET_CODE (X) == CONST) \ + goto LABEL; \ + } while (0) + +/* Run-time Target Specification */ + +#define TARGET_CPU_CPP_BUILTINS() \ + { \ + builtin_define_std ("moxie"); \ + builtin_define_std ("MOXIE"); \ + if (TARGET_LITTLE_ENDIAN) \ + builtin_define ("__MOXIE_LITTLE_ENDIAN__"); \ + else \ + builtin_define ("__MOXIE_BIG_ENDIAN__"); \ + } + +#define HAS_LONG_UNCOND_BRANCH true + +#endif /* GCC_MOXIE_H */ |