/* Definitions of target machine for GNU compiler, Renesas M32R cpu.
- Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
- 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
+ Copyright (C) 1996-2021 Free Software Foundation, Inc.
This file is part of GCC.
#undef PTRDIFF_TYPE
#undef WCHAR_TYPE
#undef WCHAR_TYPE_SIZE
-#undef TARGET_VERSION
#undef CPP_SPEC
#undef ASM_SPEC
#undef LINK_SPEC
\f
/* M32R/X overrides. */
-/* Print subsidiary information on the compiler version in use. */
-#define TARGET_VERSION fprintf (stderr, " (m32r/x/2)");
/* Additional flags for the preprocessor. */
#define CPP_CPU_SPEC "%{m32rx:-D__M32RX__ -D__m32rx__ -U__M32R2__ -U__m32r2__} \
#define SUBTARGET_REGISTER_NAMES , "a1"
/* end M32R/X overrides. */
-/* Print subsidiary information on the compiler version in use. */
-#ifndef TARGET_VERSION
-#define TARGET_VERSION fprintf (stderr, " (m32r)")
-#endif
-
/* Names to predefine in the preprocessor for this target machine. */
/* __M32R__ is defined by the existing compiler so we use that. */
#define TARGET_CPU_CPP_BUILTINS() \
/* Options to pass on to the assembler. */
#undef ASM_SPEC
-#define ASM_SPEC "%(asm_cpu) %(relax) %{fpic|fpie:-K PIC} %{fPIC|fPIE:-K PIC}"
+#define ASM_SPEC "%(asm_cpu) %(relax) %{" FPIE_OR_FPIC_SPEC ":-K PIC}"
#define LINK_SPEC "%{v} %(link_cpu) %(relax)"
#define TARGET_CPU_DEFAULT 0
#endif
-/* Code Models
-
- Code models are used to select between two choices of two separate
- possibilities (address space size, call insn to use):
-
- small: addresses use 24 bits, use bl to make calls
- medium: addresses use 32 bits, use bl to make calls (*1)
- large: addresses use 32 bits, use seth/add3/jl to make calls (*2)
-
- The fourth is "addresses use 24 bits, use seth/add3/jl to make calls" but
- using this one doesn't make much sense.
-
- (*1) The linker may eventually be able to relax seth/add3 -> ld24.
- (*2) The linker may eventually be able to relax seth/add3/jl -> bl.
-
- Internally these are recorded as TARGET_ADDR{24,32} and
- TARGET_CALL{26,32}.
-
- The __model__ attribute can be used to select the code model to use when
- accessing particular objects. */
-
-enum m32r_model { M32R_MODEL_SMALL, M32R_MODEL_MEDIUM, M32R_MODEL_LARGE };
-
-extern enum m32r_model m32r_model;
-#define TARGET_MODEL_SMALL (m32r_model == M32R_MODEL_SMALL)
-#define TARGET_MODEL_MEDIUM (m32r_model == M32R_MODEL_MEDIUM)
-#define TARGET_MODEL_LARGE (m32r_model == M32R_MODEL_LARGE)
-#define TARGET_ADDR24 (m32r_model == M32R_MODEL_SMALL)
-#define TARGET_ADDR32 (! TARGET_ADDR24)
-#define TARGET_CALL26 (! TARGET_CALL32)
-#define TARGET_CALL32 (m32r_model == M32R_MODEL_LARGE)
-
-/* The default is the small model. */
-#ifndef M32R_MODEL_DEFAULT
-#define M32R_MODEL_DEFAULT M32R_MODEL_SMALL
-#endif
-
-/* Small Data Area
-
- The SDA consists of sections .sdata, .sbss, and .scommon.
- .scommon isn't a real section, symbols in it have their section index
- set to SHN_M32R_SCOMMON, though support for it exists in the linker script.
-
- Two switches control the SDA:
-
- -G NNN - specifies the maximum size of variable to go in the SDA
-
- -msdata=foo - specifies how such variables are handled
-
- -msdata=none - small data area is disabled
-
- -msdata=sdata - small data goes in the SDA, special code isn't
- generated to use it, and special relocs aren't
- generated
-
- -msdata=use - small data goes in the SDA, special code is generated
- to use the SDA and special relocs are generated
-
- The SDA is not multilib'd, it isn't necessary.
- MULTILIB_EXTRA_OPTS is set in tmake_file to -msdata=sdata so multilib'd
- libraries have small data in .sdata/SHN_M32R_SCOMMON so programs that use
- -msdata=use will successfully link with them (references in header files
- will cause the compiler to emit code that refers to library objects in
- .data). ??? There can be a problem if the user passes a -G value greater
- than the default and a library object in a header file is that size.
- The default is 8 so this should be rare - if it occurs the user
- is required to rebuild the libraries or use a smaller value for -G. */
-
-/* Maximum size of variables that go in .sdata/.sbss.
- The -msdata=foo switch also controls how small variables are handled. */
-#ifndef SDATA_DEFAULT_SIZE
-#define SDATA_DEFAULT_SIZE 8
-#endif
-
-enum m32r_sdata { M32R_SDATA_NONE, M32R_SDATA_SDATA, M32R_SDATA_USE };
-
-extern enum m32r_sdata m32r_sdata;
-#define TARGET_SDATA_NONE (m32r_sdata == M32R_SDATA_NONE)
-#define TARGET_SDATA_SDATA (m32r_sdata == M32R_SDATA_SDATA)
-#define TARGET_SDATA_USE (m32r_sdata == M32R_SDATA_USE)
-
-/* Default is to disable the SDA
- [for upward compatibility with previous toolchains]. */
-#ifndef M32R_SDATA_DEFAULT
-#define M32R_SDATA_DEFAULT M32R_SDATA_NONE
+#ifndef M32R_OPTS_H
+#include "config/m32r/m32r-opts.h"
#endif
/* Define this macro as a C expression for the initializer of an array of
/* The best alignment to use in cases where we have a choice. */
#define FASTEST_ALIGNMENT 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 \
#define SUBTARGET_CALL_USED_REGISTERS
#endif
-#define CALL_USED_REGISTERS \
+#define CALL_REALLY_USED_REGISTERS \
{ \
1, 1, 1, 1, 1, 1, 1, 1, \
0, 0, 0, 0, 0, 0, 1, 1, \
SUBTARGET_CALL_USED_REGISTERS \
}
-#define CALL_REALLY_USED_REGISTERS CALL_USED_REGISTERS
-
/* If defined, an initializer for a vector of integers, containing the
numbers of hard registers in the order in which GCC should
prefer to use them (from most preferred to least). */
}
#endif
-/* Return number of consecutive hard regs needed starting at reg REGNO
- to hold something of mode MODE.
- This is ordinarily the length in words of a value of mode MODE
- but can be less for certain modes in special long registers. */
-#define HARD_REGNO_NREGS(REGNO, MODE) \
- ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD)
-
-/* Value is 1 if hard register REGNO can hold a value of machine-mode MODE. */
-extern const unsigned int m32r_hard_regno_mode_ok[FIRST_PSEUDO_REGISTER];
-extern unsigned int m32r_mode_class[];
-#define HARD_REGNO_MODE_OK(REGNO, MODE) \
- ((m32r_hard_regno_mode_ok[REGNO] & m32r_mode_class[MODE]) != 0)
-
-/* A C expression that is nonzero if it is desirable to choose
- register allocation so as to avoid move instructions between a
- value of mode MODE1 and a value of mode MODE2.
-
- If `HARD_REGNO_MODE_OK (R, MODE1)' and `HARD_REGNO_MODE_OK (R,
- MODE2)' are ever different for any R, then `MODES_TIEABLE_P (MODE1,
- MODE2)' must be zero. */
-
-/* Tie QI/HI/SI modes together. */
-#define MODES_TIEABLE_P(MODE1, MODE2) \
- ( GET_MODE_CLASS (MODE1) == MODE_INT \
- && GET_MODE_CLASS (MODE2) == MODE_INT \
- && GET_MODE_SIZE (MODE1) <= UNITS_PER_WORD \
- && GET_MODE_SIZE (MODE2) <= UNITS_PER_WORD)
-
#define HARD_REGNO_RENAME_OK(OLD_REG, NEW_REG) \
m32r_hard_regno_rename_ok (OLD_REG, NEW_REG)
\f
NO_REGS, CARRY_REG, ACCUM_REGS, GENERAL_REGS, ALL_REGS, LIM_REG_CLASSES
};
-#define IRA_COVER_CLASSES \
-{ \
- ACCUM_REGS, GENERAL_REGS, LIM_REG_CLASSES \
-}
-
#define N_REG_CLASSES ((int) LIM_REG_CLASSES)
/* Give names of register classes as strings for dump file. */
They give nonzero only if REGNO is a hard reg of the suitable class
or a pseudo reg currently allocated to a suitable hard reg.
Since they use reg_renumber, they are safe only once reg_renumber
- has been allocated, which happens in local-alloc.c. */
+ has been allocated, which happens in reginfo.c during register
+ allocation. */
#define REGNO_OK_FOR_BASE_P(REGNO) \
((REGNO) < FIRST_PSEUDO_REGISTER \
? GPR_P (REGNO) || (REGNO) == ARG_POINTER_REGNUM \
#define REGNO_OK_FOR_INDEX_P(REGNO) REGNO_OK_FOR_BASE_P(REGNO)
-/* Return the maximum number of consecutive registers
- needed to represent mode MODE in a register of class CLASS. */
-#define CLASS_MAX_NREGS(CLASS, MODE) \
- ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD)
-
/* Return true if a value is inside a range. */
#define IN_RANGE_P(VALUE, LOW, HIGH) \
(((unsigned HOST_WIDE_INT)((VALUE) - (LOW))) \
/* Define this macro if pushing a word onto the stack moves the stack
pointer to a smaller address. */
-#define STACK_GROWS_DOWNWARD
-
-/* Offset from frame pointer to start allocating local variables at.
- If FRAME_GROWS_DOWNWARD, this is the offset to the END of the
- first local allocated. Otherwise, it is the offset to the BEGINNING
- of the first local allocated. */
-/* The frame pointer points at the same place as the stack pointer, except if
- alloca has been called. */
-#define STARTING_FRAME_OFFSET \
- M32R_STACK_ALIGN (crtl->outgoing_args_size)
+#define STACK_GROWS_DOWNWARD 1
/* Offset from the stack pointer register to the first location at which
outgoing arguments are placed. */
\f
/* Eliminating the frame and arg pointers. */
-#if 0
-/* C statement to store the difference between the frame pointer
- and the stack pointer values immediately after the function prologue.
- If `ELIMINABLE_REGS' is defined, this macro will be not be used and
- need not be defined. */
-#define INITIAL_FRAME_POINTER_OFFSET(VAR) \
-((VAR) = m32r_compute_frame_size (get_frame_size ()))
-#endif
-
/* If defined, this macro specifies a table of register pairs used to
eliminate unneeded registers that point into the stack frame. If
it is not defined, the only elimination attempted by the compiler
{ ARG_POINTER_REGNUM, STACK_POINTER_REGNUM }, \
{ ARG_POINTER_REGNUM, 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. */
+/* This macro returns the initial difference between the specified pair
+ of registers. */
#define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \
do \
|| CONST_INT_P (X) \
|| (GET_CODE (X) == CONST \
&& ! (flag_pic && ! m32r_legitimate_pic_operand_p (X))))
-
-/* Nonzero if the constant value X is a legitimate general operand.
- We don't allow (plus symbol large-constant) as the relocations can't
- describe it. INTVAL > 32767 handles both 16-bit and 24-bit relocations.
- We allow all CONST_DOUBLE's as the md file patterns will force the
- constant to memory if they can't handle them. */
-
-#define LEGITIMATE_CONSTANT_P(X) \
- (! (GET_CODE (X) == CONST \
- && GET_CODE (XEXP (X, 0)) == PLUS \
- && (GET_CODE (XEXP (XEXP (X, 0), 0)) == SYMBOL_REF || GET_CODE (XEXP (XEXP (X, 0), 0)) == LABEL_REF) \
- && CONST_INT_P (XEXP (XEXP (X, 0), 1)) \
- && (unsigned HOST_WIDE_INT) INTVAL (XEXP (XEXP (X, 0), 1)) > 32767))
\f
/* Condition code usage. */
/* Define this macro if 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
+#define NO_FUNCTION_CSE 1
\f
/* Section selection. */
of a loop. */
/* On the M32R, align loops to 32 byte boundaries (cache line size)
if -malign-loops. */
-#define LOOP_ALIGN(LABEL) (TARGET_ALIGN_LOOPS ? 5 : 0)
+#define LOOP_ALIGN(LABEL) ((TARGET_ALIGN_LOOPS \
+ ? align_flags (5) : align_flags ()))
/* Define this to be the maximum number of insns to move around when moving
a loop test from the top of a loop to the bottom
/* Define if operations between registers always perform the operation
on the full register even if a narrower mode is specified. */
-#define WORD_REGISTER_OPERATIONS
+#define WORD_REGISTER_OPERATIONS 1
/* Define if loading in MODE, an integral mode narrower than BITS_PER_WORD
will either zero-extend or sign-extend. The value of this macro should
few bits. */
#define SHIFT_COUNT_TRUNCATED 1
-/* Value is 1 if truncating an integer of INPREC bits to OUTPREC bits
- is done just by pretending it is already truncated. */
-#define TRULY_NOOP_TRUNCATION(OUTPREC, INPREC) 1
-
/* Specify the machine mode that pointers have.
After generation of rtl, the compiler makes no further distinction
between pointers and any other objects of this machine mode. */
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