/* Known address spaces. The order must be the same as in the respective
enum from avr.h (or designated initialized must be used). */
-const avr_addrspace_t avr_addrspace[] =
-{
- { ADDR_SPACE_RAM, 0, 2, "" , 0 },
- { ADDR_SPACE_FLASH, 1, 2, "__flash", 0 },
- { ADDR_SPACE_FLASH1, 1, 2, "__flash1", 1 },
- { ADDR_SPACE_FLASH2, 1, 2, "__flash2", 2 },
- { ADDR_SPACE_FLASH3, 1, 2, "__flash3", 3 },
- { ADDR_SPACE_FLASH4, 1, 2, "__flash4", 4 },
- { ADDR_SPACE_FLASH5, 1, 2, "__flash5", 5 },
- { ADDR_SPACE_MEMX, 1, 3, "__memx", 0 },
- { 0 , 0, 0, NULL, 0 }
+const avr_addrspace_t avr_addrspace[ADDR_SPACE_COUNT] =
+{
+ { ADDR_SPACE_RAM, 0, 2, "", 0, NULL },
+ { ADDR_SPACE_FLASH, 1, 2, "__flash", 0, ".progmem.data" },
+ { ADDR_SPACE_FLASH1, 1, 2, "__flash1", 1, ".progmem1.data" },
+ { ADDR_SPACE_FLASH2, 1, 2, "__flash2", 2, ".progmem2.data" },
+ { ADDR_SPACE_FLASH3, 1, 2, "__flash3", 3, ".progmem3.data" },
+ { ADDR_SPACE_FLASH4, 1, 2, "__flash4", 4, ".progmem4.data" },
+ { ADDR_SPACE_FLASH5, 1, 2, "__flash5", 5, ".progmem5.data" },
+ { ADDR_SPACE_MEMX, 1, 3, "__memx", 0, ".progmemx.data" },
};
-/* Map 64-k Flash segment to section prefix. */
-static const char* const progmem_section_prefix[6] =
- {
- ".progmem.data",
- ".progmem1.data",
- ".progmem2.data",
- ".progmem3.data",
- ".progmem4.data",
- ".progmem5.data"
- };
/* Holding RAM addresses of some SFRs used by the compiler and that
are unique over all devices in an architecture like 'avr4'. */
static const char* out_movhi_mr_r (rtx, rtx[], int*);
static const char* out_movsi_mr_r (rtx, rtx[], int*);
-static int avr_naked_function_p (tree);
-static int interrupt_function_p (tree);
-static int signal_function_p (tree);
-static int avr_OS_task_function_p (tree);
-static int avr_OS_main_function_p (tree);
-static int avr_regs_to_save (HARD_REG_SET *);
static int get_sequence_length (rtx insns);
static int sequent_regs_live (void);
static const char *ptrreg_to_str (int);
static GTY(()) section *progmem_swtable_section;
/* Unnamed sections associated to __attribute__((progmem)) aka. PROGMEM
- or to address space __flash*. */
-static GTY(()) section *progmem_section[6];
+ or to address space __flash* or __memx. Only used as singletons inside
+ avr_asm_select_section, but it must not be local there because of GTY. */
+static GTY(()) section *progmem_section[ADDR_SPACE_COUNT];
/* Condition for insns/expanders from avr-dimode.md. */
bool avr_have_dimode = true;
bool avr_need_copy_data_p = false;
\f
-/* Initialize the GCC target structure. */
-#undef TARGET_ASM_ALIGNED_HI_OP
-#define TARGET_ASM_ALIGNED_HI_OP "\t.word\t"
-#undef TARGET_ASM_ALIGNED_SI_OP
-#define TARGET_ASM_ALIGNED_SI_OP "\t.long\t"
-#undef TARGET_ASM_UNALIGNED_HI_OP
-#define TARGET_ASM_UNALIGNED_HI_OP "\t.word\t"
-#undef TARGET_ASM_UNALIGNED_SI_OP
-#define TARGET_ASM_UNALIGNED_SI_OP "\t.long\t"
-#undef TARGET_ASM_INTEGER
-#define TARGET_ASM_INTEGER avr_assemble_integer
-#undef TARGET_ASM_FILE_START
-#define TARGET_ASM_FILE_START avr_file_start
-#undef TARGET_ASM_FILE_END
-#define TARGET_ASM_FILE_END avr_file_end
-
-#undef TARGET_ASM_FUNCTION_END_PROLOGUE
-#define TARGET_ASM_FUNCTION_END_PROLOGUE avr_asm_function_end_prologue
-#undef TARGET_ASM_FUNCTION_BEGIN_EPILOGUE
-#define TARGET_ASM_FUNCTION_BEGIN_EPILOGUE avr_asm_function_begin_epilogue
-
-#undef TARGET_FUNCTION_VALUE
-#define TARGET_FUNCTION_VALUE avr_function_value
-#undef TARGET_LIBCALL_VALUE
-#define TARGET_LIBCALL_VALUE avr_libcall_value
-#undef TARGET_FUNCTION_VALUE_REGNO_P
-#define TARGET_FUNCTION_VALUE_REGNO_P avr_function_value_regno_p
-
-#undef TARGET_ATTRIBUTE_TABLE
-#define TARGET_ATTRIBUTE_TABLE avr_attribute_table
-#undef TARGET_INSERT_ATTRIBUTES
-#define TARGET_INSERT_ATTRIBUTES avr_insert_attributes
-#undef TARGET_SECTION_TYPE_FLAGS
-#define TARGET_SECTION_TYPE_FLAGS avr_section_type_flags
-
-#undef TARGET_ASM_NAMED_SECTION
-#define TARGET_ASM_NAMED_SECTION avr_asm_named_section
-#undef TARGET_ASM_INIT_SECTIONS
-#define TARGET_ASM_INIT_SECTIONS avr_asm_init_sections
-#undef TARGET_ENCODE_SECTION_INFO
-#define TARGET_ENCODE_SECTION_INFO avr_encode_section_info
-#undef TARGET_ASM_SELECT_SECTION
-#define TARGET_ASM_SELECT_SECTION avr_asm_select_section
-
-#undef TARGET_REGISTER_MOVE_COST
-#define TARGET_REGISTER_MOVE_COST avr_register_move_cost
-#undef TARGET_MEMORY_MOVE_COST
-#define TARGET_MEMORY_MOVE_COST avr_memory_move_cost
-#undef TARGET_RTX_COSTS
-#define TARGET_RTX_COSTS avr_rtx_costs
-#undef TARGET_ADDRESS_COST
-#define TARGET_ADDRESS_COST avr_address_cost
-#undef TARGET_MACHINE_DEPENDENT_REORG
-#define TARGET_MACHINE_DEPENDENT_REORG avr_reorg
-#undef TARGET_FUNCTION_ARG
-#define TARGET_FUNCTION_ARG avr_function_arg
-#undef TARGET_FUNCTION_ARG_ADVANCE
-#define TARGET_FUNCTION_ARG_ADVANCE avr_function_arg_advance
-
-#undef TARGET_RETURN_IN_MEMORY
-#define TARGET_RETURN_IN_MEMORY avr_return_in_memory
-
-#undef TARGET_STRICT_ARGUMENT_NAMING
-#define TARGET_STRICT_ARGUMENT_NAMING hook_bool_CUMULATIVE_ARGS_true
-
-#undef TARGET_BUILTIN_SETJMP_FRAME_VALUE
-#define TARGET_BUILTIN_SETJMP_FRAME_VALUE avr_builtin_setjmp_frame_value
-
-#undef TARGET_HARD_REGNO_SCRATCH_OK
-#define TARGET_HARD_REGNO_SCRATCH_OK avr_hard_regno_scratch_ok
-#undef TARGET_CASE_VALUES_THRESHOLD
-#define TARGET_CASE_VALUES_THRESHOLD avr_case_values_threshold
-
-#undef TARGET_FRAME_POINTER_REQUIRED
-#define TARGET_FRAME_POINTER_REQUIRED avr_frame_pointer_required_p
-#undef TARGET_CAN_ELIMINATE
-#define TARGET_CAN_ELIMINATE avr_can_eliminate
-
-#undef TARGET_CLASS_LIKELY_SPILLED_P
-#define TARGET_CLASS_LIKELY_SPILLED_P avr_class_likely_spilled_p
-
-#undef TARGET_OPTION_OVERRIDE
-#define TARGET_OPTION_OVERRIDE avr_option_override
-
-#undef TARGET_CANNOT_MODIFY_JUMPS_P
-#define TARGET_CANNOT_MODIFY_JUMPS_P avr_cannot_modify_jumps_p
-
-#undef TARGET_FUNCTION_OK_FOR_SIBCALL
-#define TARGET_FUNCTION_OK_FOR_SIBCALL avr_function_ok_for_sibcall
-
-#undef TARGET_INIT_BUILTINS
-#define TARGET_INIT_BUILTINS avr_init_builtins
-
-#undef TARGET_EXPAND_BUILTIN
-#define TARGET_EXPAND_BUILTIN avr_expand_builtin
-
-#undef TARGET_FOLD_BUILTIN
-#define TARGET_FOLD_BUILTIN avr_fold_builtin
-
-#undef TARGET_ASM_FUNCTION_RODATA_SECTION
-#define TARGET_ASM_FUNCTION_RODATA_SECTION avr_asm_function_rodata_section
-
-#undef TARGET_SCALAR_MODE_SUPPORTED_P
-#define TARGET_SCALAR_MODE_SUPPORTED_P avr_scalar_mode_supported_p
-
-#undef TARGET_ADDR_SPACE_SUBSET_P
-#define TARGET_ADDR_SPACE_SUBSET_P avr_addr_space_subset_p
-
-#undef TARGET_ADDR_SPACE_CONVERT
-#define TARGET_ADDR_SPACE_CONVERT avr_addr_space_convert
-
-#undef TARGET_ADDR_SPACE_ADDRESS_MODE
-#define TARGET_ADDR_SPACE_ADDRESS_MODE avr_addr_space_address_mode
-
-#undef TARGET_ADDR_SPACE_POINTER_MODE
-#define TARGET_ADDR_SPACE_POINTER_MODE avr_addr_space_pointer_mode
-
-#undef TARGET_ADDR_SPACE_LEGITIMATE_ADDRESS_P
-#define TARGET_ADDR_SPACE_LEGITIMATE_ADDRESS_P avr_addr_space_legitimate_address_p
-
-#undef TARGET_ADDR_SPACE_LEGITIMIZE_ADDRESS
-#define TARGET_ADDR_SPACE_LEGITIMIZE_ADDRESS avr_addr_space_legitimize_address
-
-#undef TARGET_PRINT_OPERAND
-#define TARGET_PRINT_OPERAND avr_print_operand
-#undef TARGET_PRINT_OPERAND_ADDRESS
-#define TARGET_PRINT_OPERAND_ADDRESS avr_print_operand_address
-#undef TARGET_PRINT_OPERAND_PUNCT_VALID_P
-#define TARGET_PRINT_OPERAND_PUNCT_VALID_P avr_print_operand_punct_valid_p
-
-\f
/* Custom function to count number of set bits. */
by the "interrupt" attribute. */
static int
-interrupt_function_p (tree func)
+avr_interrupt_function_p (tree func)
{
return avr_lookup_function_attribute1 (func, "interrupt");
}
by the "signal" attribute. */
static int
-signal_function_p (tree func)
+avr_signal_function_p (tree func)
{
return avr_lookup_function_attribute1 (func, "signal");
}
}
+/* Implement `TARGET_SET_CURRENT_FUNCTION'. */
+/* Sanity cheching for above function attributes. */
+
+static void
+avr_set_current_function (tree decl)
+{
+ location_t loc;
+ const char *isr;
+
+ if (decl == NULL_TREE
+ || current_function_decl == NULL_TREE
+ || current_function_decl == error_mark_node
+ || cfun->machine->attributes_checked_p)
+ return;
+
+ loc = DECL_SOURCE_LOCATION (decl);
+
+ cfun->machine->is_naked = avr_naked_function_p (decl);
+ cfun->machine->is_signal = avr_signal_function_p (decl);
+ cfun->machine->is_interrupt = avr_interrupt_function_p (decl);
+ cfun->machine->is_OS_task = avr_OS_task_function_p (decl);
+ cfun->machine->is_OS_main = avr_OS_main_function_p (decl);
+
+ isr = cfun->machine->is_interrupt ? "interrupt" : "signal";
+
+ /* Too much attributes make no sense as they request conflicting features. */
+
+ if (cfun->machine->is_OS_task + cfun->machine->is_OS_main
+ + (cfun->machine->is_signal || cfun->machine->is_interrupt) > 1)
+ error_at (loc, "function attributes %qs, %qs and %qs are mutually"
+ " exclusive", "OS_task", "OS_main", isr);
+
+ /* 'naked' will hide effects of 'OS_task' and 'OS_main'. */
+
+ if (cfun->machine->is_naked
+ && (cfun->machine->is_OS_task || cfun->machine->is_OS_main))
+ warning_at (loc, OPT_Wattributes, "function attributes %qs and %qs have"
+ " no effect on %qs function", "OS_task", "OS_main", "naked");
+
+ if (cfun->machine->is_interrupt || cfun->machine->is_signal)
+ {
+ tree args = TYPE_ARG_TYPES (TREE_TYPE (decl));
+ tree ret = TREE_TYPE (TREE_TYPE (decl));
+ const char *name;
+
+ name = DECL_ASSEMBLER_NAME_SET_P (decl)
+ ? IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl))
+ : IDENTIFIER_POINTER (DECL_NAME (decl));
+
+ /* Skip a leading '*' that might still prefix the assembler name,
+ e.g. in non-LTO runs. */
+
+ name = default_strip_name_encoding (name);
+
+ /* Silently ignore 'signal' if 'interrupt' is present. AVR-LibC startet
+ using this when it switched from SIGNAL and INTERRUPT to ISR. */
+
+ if (cfun->machine->is_interrupt)
+ cfun->machine->is_signal = 0;
+
+ /* Interrupt handlers must be void __vector (void) functions. */
+
+ if (args && TREE_CODE (TREE_VALUE (args)) != VOID_TYPE)
+ error_at (loc, "%qs function cannot have arguments", isr);
+
+ if (TREE_CODE (ret) != VOID_TYPE)
+ error_at (loc, "%qs function cannot return a value", isr);
+
+ /* If the function has the 'signal' or 'interrupt' attribute, ensure
+ that the name of the function is "__vector_NN" so as to catch
+ when the user misspells the vector name. */
+
+ if (!STR_PREFIX_P (name, "__vector"))
+ warning_at (loc, 0, "%qs appears to be a misspelled %s handler",
+ name, isr);
+ }
+
+ /* Avoid the above diagnosis to be printed more than once. */
+
+ cfun->machine->attributes_checked_p = 1;
+}
+
+
/* Implement `ACCUMULATE_OUTGOING_ARGS'. */
-bool
+
+int
avr_accumulate_outgoing_args (void)
{
if (!cfun)
avr_regs_to_save (HARD_REG_SET *set)
{
int reg, count;
- int int_or_sig_p = (interrupt_function_p (current_function_decl)
- || signal_function_p (current_function_decl));
+ int int_or_sig_p = cfun->machine->is_interrupt || cfun->machine->is_signal;
if (set)
CLEAR_HARD_REG_SET (*set);
return count;
}
+
+/* Implement `TARGET_ALLOCATE_STACK_SLOTS_FOR_ARGS' */
+
+static bool
+avr_allocate_stack_slots_for_args (void)
+{
+ return !cfun->machine->is_naked;
+}
+
+
/* Return true if register FROM can be eliminated via register TO. */
static bool
&& get_frame_size () == 0
&& avr_outgoing_args_size() == 0
&& avr_regs_to_save (NULL) == 0
- && ! interrupt_function_p (current_function_decl)
- && ! signal_function_p (current_function_decl)
- && ! avr_naked_function_p (current_function_decl)
+ && ! cfun->machine->is_interrupt
+ && ! cfun->machine->is_signal
+ && ! cfun->machine->is_naked
&& ! TREE_THIS_VOLATILE (current_function_decl));
}
bool isr_p = cfun->machine->is_interrupt || cfun->machine->is_signal;
int live_seq = sequent_regs_live ();
+ HOST_WIDE_INT size_max
+ = (HOST_WIDE_INT) GET_MODE_MASK (AVR_HAVE_8BIT_SP ? QImode : Pmode);
+
bool minimize = (TARGET_CALL_PROLOGUES
+ && size < size_max
&& live_seq
&& !isr_p
&& !cfun->machine->is_OS_task
leaf function and thus X has already been saved. */
int irq_state = -1;
+ HOST_WIDE_INT size_cfa = size, neg_size;
rtx fp_plus_insns, fp, my_fp;
gcc_assert (frame_pointer_needed
my_fp = all_regs_rtx[FRAME_POINTER_REGNUM];
}
+ /* Cut down size and avoid size = 0 so that we don't run
+ into ICE like PR52488 in the remainder. */
+
+ if (size > size_max)
+ {
+ /* Don't error so that insane code from newlib still compiles
+ and does not break building newlib. As PR51345 is implemented
+ now, there are multilib variants with -msp8.
+
+ If user wants sanity checks he can use -Wstack-usage=
+ or similar options.
+
+ For CFA we emit the original, non-saturated size so that
+ the generic machinery is aware of the real stack usage and
+ will print the above diagnostic as expected. */
+
+ size = size_max;
+ }
+
+ size = trunc_int_for_mode (size, GET_MODE (my_fp));
+ neg_size = trunc_int_for_mode (-size, GET_MODE (my_fp));
+
/************ Method 1: Adjust frame pointer ************/
start_sequence ();
gen_rtx_SET (VOIDmode, fp, stack_pointer_rtx));
}
- insn = emit_move_insn (my_fp, plus_constant (my_fp, -size));
+ insn = emit_move_insn (my_fp, plus_constant (my_fp, neg_size));
if (frame_pointer_needed)
{
RTX_FRAME_RELATED_P (insn) = 1;
add_reg_note (insn, REG_CFA_ADJUST_CFA,
gen_rtx_SET (VOIDmode, fp,
- plus_constant (fp, -size)));
+ plus_constant (fp, -size_cfa)));
}
/* Copy to stack pointer. Note that since we've already
add_reg_note (insn, REG_CFA_ADJUST_CFA,
gen_rtx_SET (VOIDmode, stack_pointer_rtx,
plus_constant (stack_pointer_rtx,
- -size)));
+ -size_cfa)));
}
fp_plus_insns = get_insns ();
add_reg_note (insn, REG_CFA_ADJUST_CFA,
gen_rtx_SET (VOIDmode, stack_pointer_rtx,
plus_constant (stack_pointer_rtx,
- -size)));
+ -size_cfa)));
if (frame_pointer_needed)
{
insn = emit_move_insn (fp, stack_pointer_rtx);
emit_insn (fp_plus_insns);
}
- cfun->machine->stack_usage += size;
+ cfun->machine->stack_usage += size_cfa;
} /* !minimize && size != 0 */
} /* !minimize */
}
size = get_frame_size() + avr_outgoing_args_size();
- /* Init cfun->machine. */
- cfun->machine->is_naked = avr_naked_function_p (current_function_decl);
- cfun->machine->is_interrupt = interrupt_function_p (current_function_decl);
- cfun->machine->is_signal = signal_function_p (current_function_decl);
- cfun->machine->is_OS_task = avr_OS_task_function_p (current_function_decl);
- cfun->machine->is_OS_main = avr_OS_main_function_p (current_function_decl);
cfun->machine->stack_usage = 0;
/* Prologue: naked. */
emit_push_sfr (rampy_rtx, false /* frame-related */, true /* clr */);
}
- if (AVR_HAVE_RAMPZ
+ if (AVR_HAVE_RAMPZ
&& TEST_HARD_REG_BIT (set, REG_Z)
&& TEST_HARD_REG_BIT (set, REG_Z + 1))
{
- emit_push_sfr (rampz_rtx, false /* frame-related */, true /* clr */);
+ emit_push_sfr (rampz_rtx, false /* frame-related */, AVR_HAVE_RAMPD);
}
} /* is_interrupt is_signal */
int irq_state = -1;
rtx fp, my_fp;
rtx fp_plus_insns;
+ HOST_WIDE_INT size_max;
gcc_assert (frame_pointer_needed
|| !isr_p
my_fp = all_regs_rtx[FRAME_POINTER_REGNUM];
}
+
+ /* For rationale see comment in prologue generation. */
+
+ size_max = (HOST_WIDE_INT) GET_MODE_MASK (GET_MODE (my_fp));
+ if (size > size_max)
+ size = size_max;
+ size = trunc_int_for_mode (size, GET_MODE (my_fp));
/********** Method 1: Adjust fp register **********/
/* Restore RAMPZ/Y/X/D using tmp_reg as scratch.
The conditions to restore them must be tha same as in prologue. */
- if (AVR_HAVE_RAMPX
- && TEST_HARD_REG_BIT (set, REG_X)
- && TEST_HARD_REG_BIT (set, REG_X + 1))
+ if (AVR_HAVE_RAMPZ
+ && TEST_HARD_REG_BIT (set, REG_Z)
+ && TEST_HARD_REG_BIT (set, REG_Z + 1))
{
emit_pop_byte (TMP_REGNO);
- emit_move_insn (rampx_rtx, tmp_reg_rtx);
+ emit_move_insn (rampz_rtx, tmp_reg_rtx);
}
if (AVR_HAVE_RAMPY
emit_move_insn (rampy_rtx, tmp_reg_rtx);
}
- if (AVR_HAVE_RAMPZ
- && TEST_HARD_REG_BIT (set, REG_Z)
- && TEST_HARD_REG_BIT (set, REG_Z + 1))
+ if (AVR_HAVE_RAMPX
+ && TEST_HARD_REG_BIT (set, REG_X)
+ && TEST_HARD_REG_BIT (set, REG_X + 1))
{
emit_pop_byte (TMP_REGNO);
- emit_move_insn (rampz_rtx, tmp_reg_rtx);
+ emit_move_insn (rampx_rtx, tmp_reg_rtx);
}
if (AVR_HAVE_RAMPD)
}
+/* Implement `TARGET_MODE_DEPENDENT_ADDRESS_P'. */
+
+/* FIXME: PSImode addresses are not mode-dependent in themselves.
+ This hook just serves to hack around PR rtl-optimization/52543 by
+ claiming that PSImode addresses (which are used for the 24-bit
+ address space __memx) were mode-dependent so that lower-subreg.s
+ will skip these addresses. See also the similar FIXME comment along
+ with mov<mode> expanders in avr.md. */
+
+static bool
+avr_mode_dependent_address_p (const_rtx addr)
+{
+ return GET_MODE (addr) != Pmode;
+}
+
+
/* Helper function for `avr_legitimate_address_p'. */
static inline bool
}
break;
+ case CC_SET_VZN:
+ /* Insn like INC, DEC, NEG that set Z,N,V. We currently don't make use
+ of this combination, cf. also PR61055. */
+ CC_STATUS_INIT;
+ break;
+
case CC_SET_CZN:
/* Insn sets the Z,N,C flags of CC to recog_operand[0].
The V flag may or may not be known but that's ok because
/* Ensure that caller and callee have compatible epilogues */
- if (interrupt_function_p (current_function_decl)
- || signal_function_p (current_function_decl)
+ if (cfun->machine->is_interrupt
+ || cfun->machine->is_signal
+ || cfun->machine->is_naked
|| avr_naked_function_p (decl_callee)
- || avr_naked_function_p (current_function_decl)
/* FIXME: For OS_task and OS_main, we are over-conservative.
This is due to missing documentation of these attributes
and what they actually should do and should not do. */
|| (avr_OS_task_function_p (decl_callee)
- != avr_OS_task_function_p (current_function_decl))
+ != cfun->machine->is_OS_task)
|| (avr_OS_main_function_p (decl_callee)
- != avr_OS_main_function_p (current_function_decl)))
+ != cfun->machine->is_OS_main))
{
return false;
}
return (n_bytes > 2
&& !AVR_HAVE_LPMX
- && avr_mem_flash_p (op));
+ && MEM_P (op)
+ && MEM_ADDR_SPACE (op) == ADDR_SPACE_FLASH);
}
/* Return true if a value of mode MODE is read by __xload_* function. */
int n_bytes = GET_MODE_SIZE (mode);
return (n_bytes > 1
- || avr_current_arch->n_segments > 1);
-}
-
-
-/* Find an unused d-register to be used as scratch in INSN.
- EXCLUDE is either NULL_RTX or some register. In the case where EXCLUDE
- is a register, skip all possible return values that overlap EXCLUDE.
- The policy for the returned register is similar to that of
- `reg_unused_after', i.e. the returned register may overlap the SET_DEST
- of INSN.
-
- Return a QImode d-register or NULL_RTX if nothing found. */
-
-static rtx
-avr_find_unused_d_reg (rtx insn, rtx exclude)
-{
- int regno;
- bool isr_p = (interrupt_function_p (current_function_decl)
- || signal_function_p (current_function_decl));
-
- for (regno = 16; regno < 32; regno++)
- {
- rtx reg = all_regs_rtx[regno];
-
- if ((exclude
- && reg_overlap_mentioned_p (exclude, reg))
- || fixed_regs[regno])
- {
- continue;
- }
-
- /* Try non-live register */
-
- if (!df_regs_ever_live_p (regno)
- && (TREE_THIS_VOLATILE (current_function_decl)
- || cfun->machine->is_OS_task
- || cfun->machine->is_OS_main
- || (!isr_p && call_used_regs[regno])))
- {
- return reg;
- }
-
- /* Any live register can be used if it is unused after.
- Prologue/epilogue will care for it as needed. */
-
- if (df_regs_ever_live_p (regno)
- && reg_unused_after (insn, reg))
- {
- return reg;
- }
- }
-
- return NULL_RTX;
-}
-
-
-/* Helper function for the next function in the case where only restricted
- version of LPM instruction is available. */
-
-static const char*
-avr_out_lpm_no_lpmx (rtx insn, rtx *xop, int *plen)
-{
- rtx dest = xop[0];
- rtx addr = xop[1];
- int n_bytes = GET_MODE_SIZE (GET_MODE (dest));
- int regno_dest;
-
- regno_dest = REGNO (dest);
-
- /* The implicit target register of LPM. */
- xop[3] = lpm_reg_rtx;
-
- switch (GET_CODE (addr))
- {
- default:
- gcc_unreachable();
-
- case REG:
-
- gcc_assert (REG_Z == REGNO (addr));
-
- switch (n_bytes)
- {
- default:
- gcc_unreachable();
-
- case 1:
- avr_asm_len ("%4lpm", xop, plen, 1);
-
- if (regno_dest != LPM_REGNO)
- avr_asm_len ("mov %0,%3", xop, plen, 1);
-
- return "";
-
- case 2:
- if (REGNO (dest) == REG_Z)
- return avr_asm_len ("%4lpm" CR_TAB
- "push %3" CR_TAB
- "adiw %2,1" CR_TAB
- "%4lpm" CR_TAB
- "mov %B0,%3" CR_TAB
- "pop %A0", xop, plen, 6);
-
- avr_asm_len ("%4lpm" CR_TAB
- "mov %A0,%3" CR_TAB
- "adiw %2,1" CR_TAB
- "%4lpm" CR_TAB
- "mov %B0,%3", xop, plen, 5);
-
- if (!reg_unused_after (insn, addr))
- avr_asm_len ("sbiw %2,1", xop, plen, 1);
-
- break; /* 2 */
- }
-
- break; /* REG */
-
- case POST_INC:
-
- gcc_assert (REG_Z == REGNO (XEXP (addr, 0))
- && n_bytes <= 4);
-
- if (regno_dest == LPM_REGNO)
- avr_asm_len ("%4lpm" CR_TAB
- "adiw %2,1", xop, plen, 2);
- else
- avr_asm_len ("%4lpm" CR_TAB
- "mov %A0,%3" CR_TAB
- "adiw %2,1", xop, plen, 3);
-
- if (n_bytes >= 2)
- avr_asm_len ("%4lpm" CR_TAB
- "mov %B0,%3" CR_TAB
- "adiw %2,1", xop, plen, 3);
-
- if (n_bytes >= 3)
- avr_asm_len ("%4lpm" CR_TAB
- "mov %C0,%3" CR_TAB
- "adiw %2,1", xop, plen, 3);
-
- if (n_bytes >= 4)
- avr_asm_len ("%4lpm" CR_TAB
- "mov %D0,%3" CR_TAB
- "adiw %2,1", xop, plen, 3);
-
- break; /* POST_INC */
-
- } /* switch CODE (addr) */
-
- return "";
+ || avr_current_device->n_flash > 1);
}
static const char*
avr_out_lpm (rtx insn, rtx *op, int *plen)
{
- rtx xop[6];
+ rtx xop[3];
rtx dest = op[0];
rtx src = SET_SRC (single_set (insn));
rtx addr;
int n_bytes = GET_MODE_SIZE (GET_MODE (dest));
- int regno_dest;
- int segment;
RTX_CODE code;
addr_space_t as = MEM_ADDR_SPACE (src);
gcc_assert (REG_P (dest));
gcc_assert (REG == code || POST_INC == code);
- xop[0] = dest;
- xop[1] = addr;
- xop[2] = lpm_addr_reg_rtx;
- xop[4] = xstring_empty;
- xop[5] = tmp_reg_rtx;
-
- regno_dest = REGNO (dest);
-
- /* Cut down segment number to a number the device actually supports.
- We do this late to preserve the address space's name for diagnostics. */
-
- segment = avr_addrspace[as].segment % avr_current_arch->n_segments;
-
- /* Set RAMPZ as needed. */
-
- if (segment)
- {
- xop[4] = GEN_INT (segment);
-
- if (xop[3] = avr_find_unused_d_reg (insn, lpm_addr_reg_rtx),
- xop[3])
- {
- avr_asm_len ("ldi %3,%4" CR_TAB
- "out __RAMPZ__,%3", xop, plen, 2);
- }
- else if (segment == 1)
- {
- avr_asm_len ("clr %5" CR_TAB
- "inc %5" CR_TAB
- "out __RAMPZ__,%5", xop, plen, 3);
- }
- else
- {
- avr_asm_len ("mov %5,%2" CR_TAB
- "ldi %2,%4" CR_TAB
- "out __RAMPZ__,%2" CR_TAB
- "mov %2,%5", xop, plen, 4);
- }
-
- xop[4] = xstring_e;
-
- if (!AVR_HAVE_ELPMX)
- return avr_out_lpm_no_lpmx (insn, xop, plen);
- }
- else if (!AVR_HAVE_LPMX)
- {
- return avr_out_lpm_no_lpmx (insn, xop, plen);
- }
+ /* Only 1-byte moves from __flash are representes as open coded
+ mov insns. All other loads from flash are not handled here but
+ by some UNSPEC instead, see respective FIXME in machine description. */
+
+ gcc_assert (as == ADDR_SPACE_FLASH);
+ gcc_assert (n_bytes == 1);
- /* We have [E]LPMX: Output reading from Flash the comfortable way. */
+ xop[0] = dest;
+ xop[1] = lpm_addr_reg_rtx;
+ xop[2] = lpm_reg_rtx;
- switch (GET_CODE (addr))
+ switch (code)
{
default:
gcc_unreachable();
case REG:
gcc_assert (REG_Z == REGNO (addr));
+
+ return AVR_HAVE_LPMX
+ ? avr_asm_len ("lpm %0,%a1", xop, plen, 1)
+ : avr_asm_len ("lpm" CR_TAB
+ "mov %0,%2", xop, plen, 2);
+
+ case POST_INC:
+
+ gcc_assert (REG_Z == REGNO (XEXP (addr, 0)));
- switch (n_bytes)
- {
- default:
- gcc_unreachable();
-
- case 1:
- return avr_asm_len ("%4lpm %0,%a2", xop, plen, 1);
+ return AVR_HAVE_LPMX
+ ? avr_asm_len ("lpm %0,%a1+", xop, plen, 1)
+ : avr_asm_len ("lpm" CR_TAB
+ "adiw %1, 1" CR_TAB
+ "mov %0,%2", xop, plen, 3);
+ }
- case 2:
- if (REGNO (dest) == REG_Z)
- return avr_asm_len ("%4lpm %5,%a2+" CR_TAB
- "%4lpm %B0,%a2" CR_TAB
- "mov %A0,%5", xop, plen, 3);
- else
- {
- avr_asm_len ("%4lpm %A0,%a2+" CR_TAB
- "%4lpm %B0,%a2", xop, plen, 2);
-
- if (!reg_unused_after (insn, addr))
- avr_asm_len ("sbiw %2,1", xop, plen, 1);
- }
-
- break; /* 2 */
+ return "";
+}
- case 3:
- avr_asm_len ("%4lpm %A0,%a2+" CR_TAB
- "%4lpm %B0,%a2+" CR_TAB
- "%4lpm %C0,%a2", xop, plen, 3);
-
- if (!reg_unused_after (insn, addr))
- avr_asm_len ("sbiw %2,2", xop, plen, 1);
+/* If PLEN == NULL: Ouput instructions to load $0 with a value from
+ flash address $1:Z. If $1 = 0 we can use LPM to read, otherwise
+ use ELPM.
+ If PLEN != 0 set *PLEN to the length in words of the instruction sequence.
+ Return "". */
- break; /* 3 */
+const char*
+avr_load_lpm (rtx insn, rtx *op, int *plen)
+{
+ rtx xop[4];
+ int n, n_bytes = GET_MODE_SIZE (GET_MODE (op[0]));
+ rtx xsegment = op[1];
+ bool clobber_z = PARALLEL == GET_CODE (PATTERN (insn));
+ bool r30_in_tmp = false;
+
+ if (plen)
+ *plen = 0;
+
+ xop[1] = lpm_addr_reg_rtx;
+ xop[2] = lpm_reg_rtx;
+ xop[3] = xstring_empty;
+
+ /* Set RAMPZ as needed. */
+
+ if (REG_P (xsegment))
+ {
+ avr_asm_len ("out __RAMPZ__,%0", &xsegment, plen, 1);
+ xop[3] = xstring_e;
+ }
+
+ /* Load the individual bytes from LSB to MSB. */
+
+ for (n = 0; n < n_bytes; n++)
+ {
+ xop[0] = all_regs_rtx[REGNO (op[0]) + n];
- case 4:
-
- avr_asm_len ("%4lpm %A0,%a2+" CR_TAB
- "%4lpm %B0,%a2+", xop, plen, 2);
-
- if (REGNO (dest) == REG_Z - 2)
- return avr_asm_len ("%4lpm %5,%a2+" CR_TAB
- "%4lpm %C0,%a2" CR_TAB
- "mov %D0,%5", xop, plen, 3);
- else
+ if ((CONST_INT_P (xsegment) && AVR_HAVE_LPMX)
+ || (REG_P (xsegment) && AVR_HAVE_ELPMX))
+ {
+ if (n == n_bytes-1)
+ avr_asm_len ("%3lpm %0,%a1", xop, plen, 1);
+ else if (REGNO (xop[0]) == REG_Z)
{
- avr_asm_len ("%4lpm %C0,%a2+" CR_TAB
- "%4lpm %D0,%a2", xop, plen, 2);
-
- if (!reg_unused_after (insn, addr))
- avr_asm_len ("sbiw %2,3", xop, plen, 1);
+ avr_asm_len ("%3lpm %2,%a1+", xop, plen, 1);
+ r30_in_tmp = true;
}
+ else
+ avr_asm_len ("%3lpm %0,%a1+", xop, plen, 1);
+ }
+ else
+ {
+ gcc_assert (clobber_z);
+
+ avr_asm_len ("%3lpm" CR_TAB
+ "mov %0,%2", xop, plen, 2);
- break; /* 4 */
- } /* n_bytes */
+ if (n != n_bytes-1)
+ avr_asm_len ("adiw %1,1", xop, plen, 1);
+ }
+ }
+
+ if (r30_in_tmp)
+ avr_asm_len ("mov %1,%2", xop, plen, 1);
+
+ if (!clobber_z
+ && n_bytes > 1
+ && !reg_unused_after (insn, lpm_addr_reg_rtx)
+ && !reg_overlap_mentioned_p (op[0], lpm_addr_reg_rtx))
+ {
+ xop[2] = GEN_INT (n_bytes-1);
+ avr_asm_len ("sbiw %1,%2", xop, plen, 1);
+ }
+
+ if (REG_P (xsegment) && AVR_HAVE_RAMPD)
+ {
+ /* Reset RAMPZ to 0 so that EBI devices don't read garbage from RAM */
- break; /* REG */
-
- case POST_INC:
-
- gcc_assert (REG_Z == REGNO (XEXP (addr, 0))
- && n_bytes <= 4);
-
- avr_asm_len ("%4lpm %A0,%a2+", xop, plen, 1);
- if (n_bytes >= 2) avr_asm_len ("%4lpm %B0,%a2+", xop, plen, 1);
- if (n_bytes >= 3) avr_asm_len ("%4lpm %C0,%a2+", xop, plen, 1);
- if (n_bytes >= 4) avr_asm_len ("%4lpm %D0,%a2+", xop, plen, 1);
-
- break; /* POST_INC */
+ avr_asm_len ("out __RAMPZ__,__zero_reg__", xop, plen, 1);
+ }
- } /* switch CODE (addr) */
-
return "";
}
if (plen)
*plen = 0;
- avr_asm_len ("ld %3,%a2" CR_TAB
- "sbrs %1,7", xop, plen, 2);
+ avr_asm_len ("sbrc %1,7" CR_TAB
+ "ld %3,%a2" CR_TAB
+ "sbrs %1,7", xop, plen, 3);
avr_asm_len (AVR_HAVE_LPMX ? "lpm %3,%a2" : "lpm", xop, plen, 1);
}
-const char *
-output_movqi (rtx insn, rtx operands[], int *l)
+const char*
+output_movqi (rtx insn, rtx operands[], int *real_l)
{
- int dummy;
rtx dest = operands[0];
rtx src = operands[1];
- int *real_l = l;
if (avr_mem_flash_p (src)
|| avr_mem_flash_p (dest))
return avr_out_lpm (insn, operands, real_l);
}
- if (!l)
- l = &dummy;
-
- *l = 1;
+ if (real_l)
+ *real_l = 1;
if (register_operand (dest, QImode))
{
output_reload_in_const (operands, NULL_RTX, real_l, false);
return "";
}
- else if (GET_CODE (src) == MEM)
+ else if (MEM_P (src))
return out_movqi_r_mr (insn, operands, real_l); /* mov r,m */
}
- else if (GET_CODE (dest) == MEM)
+ else if (MEM_P (dest))
{
rtx xop[2];
}
else if (test_hard_reg_class (STACK_REG, src))
{
- return AVR_HAVE_8BIT_SP
+ return !AVR_HAVE_SPH
? avr_asm_len ("in %A0,__SP_L__" CR_TAB
"clr %B0", xop, plen, -2)
"mov r27,__tmp_reg__", op, plen, -6);
}
- avr_asm_len ("adiw r26,%o1" CR_TAB
- "ld r24,X+" CR_TAB
- "ld r25,X+" CR_TAB
- "ld r26,X", op, plen, -4);
+ avr_asm_len ("adiw r26,%o1" CR_TAB
+ "ld %A0,X+" CR_TAB
+ "ld %B0,X+" CR_TAB
+ "ld %C0,X", op, plen, -4);
- if (reg_dest != REG_X - 2)
- avr_asm_len ("sbiw r26,%o1+2", op, plen, 1);
+ if (reg_dest != REG_W
+ && !reg_unused_after (insn, XEXP (base, 0)))
+ avr_asm_len ("sbiw r26,%o1+2", op, plen, 1);
- return "";
+ return "";
}
if (reg_dest == reg_base)
else
avr_asm_len ("st X+,%A1" CR_TAB
"st X,%B1", op, plen, -2);
-
- return reg_unused_after (insn, src)
+
+ return reg_unused_after (insn, base)
? ""
: avr_asm_len ("sbiw r26,1", op, plen, 1);
}
op, plen, 1);
if (n_bytes == 2 && PLUS == code)
- *pcc = CC_SET_ZN;
+ *pcc = CC_SET_CZN;
}
i++;
{
avr_asm_len ((code == PLUS) ^ (val8 == 1) ? "dec %0" : "inc %0",
op, plen, 1);
+ *pcc = CC_CLOBBER;
break;
}
case ADJUST_LEN_MOV32: output_movsisf (insn, op, &len); break;
case ADJUST_LEN_MOVMEM: avr_out_movmem (insn, op, &len); break;
case ADJUST_LEN_XLOAD: avr_out_xload (insn, op, &len); break;
+ case ADJUST_LEN_LOAD_LPM: avr_load_lpm (insn, op, &len); break;
case ADJUST_LEN_TSTHI: avr_out_tsthi (insn, op, &len); break;
case ADJUST_LEN_TSTPSI: avr_out_tstpsi (insn, op, &len); break;
}
-/* Worker function for ASM_DECLARE_FUNCTION_NAME. */
-
-void
-avr_asm_declare_function_name (FILE *file, const char *name, tree decl)
-{
-
- /* If the function has the 'signal' or 'interrupt' attribute, test to
- make sure that the name of the function is "__vector_NN" so as to
- catch when the user misspells the interrupt vector name. */
-
- if (cfun->machine->is_interrupt)
- {
- if (!STR_PREFIX_P (name, "__vector"))
- {
- warning_at (DECL_SOURCE_LOCATION (decl), 0,
- "%qs appears to be a misspelled interrupt handler",
- name);
- }
- }
- else if (cfun->machine->is_signal)
- {
- if (!STR_PREFIX_P (name, "__vector"))
- {
- warning_at (DECL_SOURCE_LOCATION (decl), 0,
- "%qs appears to be a misspelled signal handler",
- name);
- }
- }
-
- ASM_OUTPUT_TYPE_DIRECTIVE (file, name, "function");
- ASM_OUTPUT_LABEL (file, name);
-}
-
-
/* Return value is nonzero if pseudos that have been
assigned to registers of class CLASS would likely be spilled
because registers of CLASS are needed for spill registers. */
if (POINTER_TYPE_P (typ))
{
+ addr_space_t as;
tree target = TREE_TYPE (typ);
/* Pointer to function: Test the function's return type. */
while (TREE_CODE (target) == ARRAY_TYPE)
target = TREE_TYPE (target);
- if (!ADDR_SPACE_GENERIC_P (TYPE_ADDR_SPACE (target))
- && !TYPE_READONLY (target))
- {
- /* Pointers to non-generic address space must be const. */
+ /* Pointers to non-generic address space must be const.
+ Refuse address spaces outside the device's flash. */
- return TYPE_ADDR_SPACE (target);
+ as = TYPE_ADDR_SPACE (target);
+
+ if (!ADDR_SPACE_GENERIC_P (as)
+ && (!TYPE_READONLY (target)
+ || avr_addrspace[as].segment >= avr_current_device->n_flash))
+ {
+ return as;
}
/* Scan pointer's target type. */
if (reason)
{
- if (TYPE_P (node))
- error ("pointer targeting address space %qs must be const in %qT",
- avr_addrspace[as].name, node);
+ if (avr_addrspace[as].segment >= avr_current_device->n_flash)
+ {
+ if (TYPE_P (node))
+ error ("%qT uses address space %qs beyond flash of %qs",
+ node, avr_addrspace[as].name, avr_current_device->name);
+ else
+ error ("%s %q+D uses address space %qs beyond flash of %qs",
+ reason, node, avr_addrspace[as].name,
+ avr_current_device->name);
+ }
else
- error ("pointer targeting address space %qs must be const in %s %q+D",
- avr_addrspace[as].name, reason, node);
+ {
+ if (TYPE_P (node))
+ error ("pointer targeting address space %qs must be const in %qT",
+ avr_addrspace[as].name, node);
+ else
+ error ("pointer targeting address space %qs must be const"
+ " in %s %q+D",
+ avr_addrspace[as].name, reason, node);
+ }
}
return reason == NULL;
&& (TREE_STATIC (node) || DECL_EXTERNAL (node))
&& avr_progmem_p (node, *attributes))
{
+ addr_space_t as;
tree node0 = node;
/* For C++, we have to peel arrays in order to get correct
if (error_mark_node == node0)
return;
+
+ as = TYPE_ADDR_SPACE (TREE_TYPE (node));
+
+ if (avr_addrspace[as].segment >= avr_current_device->n_flash)
+ {
+ error ("variable %q+D located in address space %qs"
+ " beyond flash of %qs",
+ node, avr_addrspace[as].name, avr_current_device->name);
+ }
if (!TYPE_READONLY (node0)
&& !TREE_READONLY (node))
{
- addr_space_t as = TYPE_ADDR_SPACE (TREE_TYPE (node));
const char *reason = "__attribute__((progmem))";
if (!ADDR_SPACE_GENERIC_P (as))
unsigned HOST_WIDE_INT size,
unsigned int align, bool local_p)
{
- avr_need_clear_bss_p = true;
+ /* __gnu_lto_v1 etc. are just markers for the linker injected by toplev.c.
+ There is no need to trigger __do_clear_bss code for them. */
+
+ if (!STR_PREFIX_P (name, "__gnu_lto"))
+ avr_need_clear_bss_p = true;
if (local_p)
ASM_OUTPUT_ALIGNED_LOCAL (stream, name, size, align);
static void
avr_asm_init_sections (void)
{
- unsigned int n;
-
/* Set up a section for jump tables. Alignment is handled by
ASM_OUTPUT_BEFORE_CASE_LABEL. */
",\"ax\",@progbits");
}
- for (n = 0; n < sizeof (progmem_section) / sizeof (*progmem_section); n++)
- {
- progmem_section[n]
- = get_unnamed_section (0, avr_output_progmem_section_asm_op,
- progmem_section_prefix[n]);
- }
-
/* Override section callbacks to keep track of `avr_need_clear_bss_p'
resp. `avr_need_copy_data_p'. */
if (flags & AVR_SECTION_PROGMEM)
{
addr_space_t as = (flags & AVR_SECTION_PROGMEM) / SECTION_MACH_DEP;
- int segment = avr_addrspace[as].segment % avr_current_arch->n_segments;
const char *old_prefix = ".rodata";
- const char *new_prefix = progmem_section_prefix[segment];
-
+ const char *new_prefix = avr_addrspace[as].section_name;
+
if (STR_PREFIX_P (name, old_prefix))
{
const char *sname = ACONCAT ((new_prefix,
&& avr_progmem_p (decl, DECL_ATTRIBUTES (decl)))
{
addr_space_t as = TYPE_ADDR_SPACE (TREE_TYPE (decl));
- int segment = avr_addrspace[as].segment % avr_current_arch->n_segments;
+
+ /* __progmem__ goes in generic space but shall be allocated to
+ .progmem.data */
+
+ if (ADDR_SPACE_GENERIC_P (as))
+ as = ADDR_SPACE_FLASH;
if (sect->common.flags & SECTION_NAMED)
{
const char * name = sect->named.name;
const char * old_prefix = ".rodata";
- const char * new_prefix = progmem_section_prefix[segment];
+ const char * new_prefix = avr_addrspace[as].section_name;
if (STR_PREFIX_P (name, old_prefix))
{
return get_section (sname, sect->common.flags, sect->named.decl);
}
}
-
- return progmem_section[segment];
+
+ if (!progmem_section[as])
+ {
+ progmem_section[as]
+ = get_unnamed_section (0, avr_output_progmem_section_asm_op,
+ avr_addrspace[as].section_name);
+ }
+
+ return progmem_section[as];
}
return sect;
/* Print I/O addresses of some SFRs used with IN and OUT. */
- if (!AVR_HAVE_8BIT_SP)
+ if (AVR_HAVE_SPH)
fprintf (asm_out_file, "__SP_H__ = 0x%02x\n", avr_addr.sp_h - sfr_offset);
fprintf (asm_out_file, "__SP_L__ = 0x%02x\n", avr_addr.sp_l - sfr_offset);
}
+/* Implement `HARD_REGNO_CALL_PART_CLOBBERED'. */
+
+int
+avr_hard_regno_call_part_clobbered (unsigned regno, enum machine_mode mode)
+{
+ /* FIXME: This hook gets called with MODE:REGNO combinations that don't
+ represent valid hard registers like, e.g. HI:29. Returning TRUE
+ for such registers can lead to performance degradation as mentioned
+ in PR53595. Thus, report invalid hard registers as FALSE. */
+
+ if (!avr_hard_regno_mode_ok (regno, mode))
+ return 0;
+
+ /* Return true if any of the following boundaries is crossed:
+ 17/18, 27/28 and 29/30. */
+
+ return ((regno < 18 && regno + GET_MODE_SIZE (mode) > 18)
+ || (regno < REG_Y && regno + GET_MODE_SIZE (mode) > REG_Y)
+ || (regno < REG_Z && regno + GET_MODE_SIZE (mode) > REG_Z));
+}
+
+
/* Implement `MODE_CODE_BASE_REG_CLASS'. */
-reg_class_t
+enum reg_class
avr_mode_code_base_reg_class (enum machine_mode mode ATTRIBUTE_UNUSED,
addr_space_t as, RTX_CODE outer_code,
RTX_CODE index_code ATTRIBUTE_UNUSED)
return "";
}
-void
-avr_output_bld (rtx operands[], int bit_nr)
-{
- static char s[] = "bld %A0,0";
-
- s[5] = 'A' + (bit_nr >> 3);
- s[8] = '0' + (bit_nr & 7);
- output_asm_insn (s, operands);
-}
void
avr_output_addr_vec_elt (FILE *stream, int value)
case REG:
- if (GET_MODE (operands[1]) == QImode)
- {
- if (comp == EQ)
- output_asm_insn ("sbrs %1,%2", operands);
- else
- output_asm_insn ("sbrc %1,%2", operands);
- }
- else /* HImode, PSImode or SImode */
- {
- static char buf[] = "sbrc %A1,0";
- unsigned int bit_nr = UINTVAL (operands[2]);
-
- buf[3] = (comp == EQ) ? 's' : 'c';
- buf[6] = 'A' + (bit_nr / 8);
- buf[9] = '0' + (bit_nr % 8);
- output_asm_insn (buf, operands);
- }
+ if (comp == EQ)
+ output_asm_insn ("sbrs %T1%T2", operands);
+ else
+ output_asm_insn ("sbrc %T1%T2", operands);
break; /* REG */
} /* switch */
static bool
avr_reg_ok_for_pgm_addr (rtx reg, bool strict)
{
- gcc_assert (REG_P (reg));
+ if (!REG_P (reg))
+ return false;
if (strict)
{
msb = ADDR_SPACE_GENERIC_P (as_from)
? 0x80
- : avr_addrspace[as_from].segment % avr_current_arch->n_segments;
+ : avr_addrspace[as_from].segment;
src = force_reg (Pmode, src);
HOST_WIDE_INT count;
enum machine_mode loop_mode;
addr_space_t as = MEM_ADDR_SPACE (xop[1]);
- rtx loop_reg, addr0, addr1, a_src, a_dest, insn, xas, reg_x;
+ rtx loop_reg, addr1, a_src, a_dest, insn, xas;
rtx a_hi8 = NULL_RTX;
if (avr_mem_flash_p (xop[0]))
}
else
{
- int segment = avr_addrspace[as].segment % avr_current_arch->n_segments;
+ int segment = avr_addrspace[as].segment;
if (segment
- && avr_current_arch->n_segments > 1)
+ && avr_current_device->n_flash > 1)
{
a_hi8 = GEN_INT (segment);
emit_move_insn (rampz_rtx, a_hi8 = copy_to_mode_reg (QImode, a_hi8));
X = destination address */
emit_move_insn (lpm_addr_reg_rtx, addr1);
- addr1 = lpm_addr_reg_rtx;
-
- reg_x = gen_rtx_REG (HImode, REG_X);
- emit_move_insn (reg_x, a_dest);
- addr0 = reg_x;
+ emit_move_insn (gen_rtx_REG (HImode, REG_X), a_dest);
/* FIXME: Register allocator does a bad job and might spill address
register(s) inside the loop leading to additional move instruction
/* Load instruction ([E]LPM or LD) is known at compile time:
Do the copy-loop inline. */
- rtx (*fun) (rtx, rtx, rtx, rtx, rtx, rtx, rtx, rtx)
+ rtx (*fun) (rtx, rtx, rtx)
= QImode == loop_mode ? gen_movmem_qi : gen_movmem_hi;
- insn = fun (addr0, addr1, xas, loop_reg,
- addr0, addr1, tmp_reg_rtx, loop_reg);
+ insn = fun (xas, loop_reg, loop_reg);
}
else
{
- rtx loop_reg16 = gen_rtx_REG (HImode, 24);
- rtx r23 = gen_rtx_REG (QImode, 23);
- rtx (*fun) (rtx, rtx, rtx, rtx, rtx, rtx, rtx, rtx, rtx, rtx, rtx)
+ rtx (*fun) (rtx, rtx)
= QImode == loop_mode ? gen_movmemx_qi : gen_movmemx_hi;
- emit_move_insn (r23, a_hi8);
+ emit_move_insn (gen_rtx_REG (QImode, 23), a_hi8);
- insn = fun (addr0, addr1, xas, loop_reg, addr0, addr1,
- lpm_reg_rtx, loop_reg16, r23, r23, GEN_INT (avr_addr.rampz));
+ insn = fun (xas, GEN_INT (avr_addr.rampz));
}
set_mem_addr_space (SET_SRC (XVECEXP (insn, 0, 0)), as);
/* Print assembler for movmem_qi, movmem_hi insns...
- $0, $4 : & dest
- $1, $5 : & src
- $2 : Address Space
- $3, $7 : Loop register
- $6 : Scratch register
-
- ...and movmem_qi_elpm, movmem_hi_elpm insns.
-
- $8, $9 : hh8 (& src)
- $10 : RAMPZ_ADDR
+ $0 : Address Space
+ $1, $2 : Loop register
+ Z : Source address
+ X : Destination address
*/
const char*
-avr_out_movmem (rtx insn ATTRIBUTE_UNUSED, rtx *xop, int *plen)
+avr_out_movmem (rtx insn ATTRIBUTE_UNUSED, rtx *op, int *plen)
{
- addr_space_t as = (addr_space_t) INTVAL (xop[2]);
- enum machine_mode loop_mode = GET_MODE (xop[3]);
-
- bool sbiw_p = test_hard_reg_class (ADDW_REGS, xop[3]);
-
- gcc_assert (REG_X == REGNO (xop[0])
- && REG_Z == REGNO (xop[1]));
+ addr_space_t as = (addr_space_t) INTVAL (op[0]);
+ enum machine_mode loop_mode = GET_MODE (op[1]);
+ bool sbiw_p = test_hard_reg_class (ADDW_REGS, op[1]);
+ rtx xop[3];
if (plen)
*plen = 0;
+ xop[0] = op[0];
+ xop[1] = op[1];
+ xop[2] = tmp_reg_rtx;
+
/* Loop label */
avr_asm_len ("0:", xop, plen, 0);
case ADDR_SPACE_GENERIC:
- avr_asm_len ("ld %6,%a1+", xop, plen, 1);
+ avr_asm_len ("ld %2,Z+", xop, plen, 1);
break;
case ADDR_SPACE_FLASH:
if (AVR_HAVE_LPMX)
- avr_asm_len ("lpm %6,%a1+", xop, plen, 1);
+ avr_asm_len ("lpm %2,Z+", xop, plen, 1);
else
avr_asm_len ("lpm" CR_TAB
- "adiw %1,1", xop, plen, 2);
+ "adiw r30,1", xop, plen, 2);
break;
case ADDR_SPACE_FLASH1:
case ADDR_SPACE_FLASH5:
if (AVR_HAVE_ELPMX)
- avr_asm_len ("elpm %6,%a1+", xop, plen, 1);
+ avr_asm_len ("elpm %2,Z+", xop, plen, 1);
else
avr_asm_len ("elpm" CR_TAB
- "adiw %1,1", xop, plen, 2);
+ "adiw r30,1", xop, plen, 2);
break;
}
/* Store with post-increment */
- avr_asm_len ("st %a0+,%6", xop, plen, 1);
+ avr_asm_len ("st X+,%2", xop, plen, 1);
/* Decrement loop-counter and set Z-flag */
if (QImode == loop_mode)
{
- avr_asm_len ("dec %3", xop, plen, 1);
+ avr_asm_len ("dec %1", xop, plen, 1);
}
else if (sbiw_p)
{
- avr_asm_len ("sbiw %3,1", xop, plen, 1);
+ avr_asm_len ("sbiw %1,1", xop, plen, 1);
}
else
{
- avr_asm_len ("subi %A3,1" CR_TAB
- "sbci %B3,0", xop, plen, 2);
+ avr_asm_len ("subi %A1,1" CR_TAB
+ "sbci %B1,0", xop, plen, 2);
}
/* Loop until zero */
\f
/* Helper for __builtin_avr_delay_cycles */
+static rtx
+avr_mem_clobber (void)
+{
+ rtx mem = gen_rtx_MEM (BLKmode, gen_rtx_SCRATCH (Pmode));
+ MEM_VOLATILE_P (mem) = 1;
+ return mem;
+}
+
static void
avr_expand_delay_cycles (rtx operands0)
{
- unsigned HOST_WIDE_INT cycles = UINTVAL (operands0);
+ unsigned HOST_WIDE_INT cycles = UINTVAL (operands0) & GET_MODE_MASK (SImode);
unsigned HOST_WIDE_INT cycles_used;
unsigned HOST_WIDE_INT loop_count;
{
loop_count = ((cycles - 9) / 6) + 1;
cycles_used = ((loop_count - 1) * 6) + 9;
- emit_insn (gen_delay_cycles_4 (gen_int_mode (loop_count, SImode)));
+ emit_insn (gen_delay_cycles_4 (gen_int_mode (loop_count, SImode),
+ avr_mem_clobber()));
cycles -= cycles_used;
}
if (loop_count > 0xFFFFFF)
loop_count = 0xFFFFFF;
cycles_used = ((loop_count - 1) * 5) + 7;
- emit_insn (gen_delay_cycles_3 (gen_int_mode (loop_count, SImode)));
+ emit_insn (gen_delay_cycles_3 (gen_int_mode (loop_count, SImode),
+ avr_mem_clobber()));
cycles -= cycles_used;
}
if (loop_count > 0xFFFF)
loop_count = 0xFFFF;
cycles_used = ((loop_count - 1) * 4) + 5;
- emit_insn (gen_delay_cycles_2 (gen_int_mode (loop_count, HImode)));
+ emit_insn (gen_delay_cycles_2 (gen_int_mode (loop_count, HImode),
+ avr_mem_clobber()));
cycles -= cycles_used;
}
if (loop_count > 255)
loop_count = 255;
cycles_used = loop_count * 3;
- emit_insn (gen_delay_cycles_1 (gen_int_mode (loop_count, QImode)));
+ emit_insn (gen_delay_cycles_1 (gen_int_mode (loop_count, QImode),
+ avr_mem_clobber()));
cycles -= cycles_used;
}
enum avr_builtin_id
{
- AVR_BUILTIN_NOP,
- AVR_BUILTIN_SEI,
- AVR_BUILTIN_CLI,
- AVR_BUILTIN_WDR,
- AVR_BUILTIN_SLEEP,
- AVR_BUILTIN_SWAP,
- AVR_BUILTIN_INSERT_BITS,
- AVR_BUILTIN_FMUL,
- AVR_BUILTIN_FMULS,
- AVR_BUILTIN_FMULSU,
- AVR_BUILTIN_DELAY_CYCLES
+
+#define DEF_BUILTIN(NAME, N_ARGS, ID, TYPE, CODE) ID,
+#include "builtins.def"
+#undef DEF_BUILTIN
+
+ AVR_BUILTIN_COUNT
+ };
+
+struct GTY(()) avr_builtin_description
+{
+ enum insn_code icode;
+ const char *name;
+ int n_args;
+ tree fndecl;
+};
+
+
+/* Notice that avr_bdesc[] and avr_builtin_id are initialized in such a way
+ that a built-in's ID can be used to access the built-in by means of
+ avr_bdesc[ID] */
+
+static GTY(()) struct avr_builtin_description
+avr_bdesc[AVR_BUILTIN_COUNT] =
+ {
+
+#define DEF_BUILTIN(NAME, N_ARGS, ID, TYPE, ICODE) \
+ { ICODE, NAME, N_ARGS, NULL_TREE },
+#include "builtins.def"
+#undef DEF_BUILTIN
};
+
+/* Implement `TARGET_BUILTIN_DECL'. */
+
+static tree
+avr_builtin_decl (unsigned id, bool initialize_p ATTRIBUTE_UNUSED)
+{
+ if (id < AVR_BUILTIN_COUNT)
+ return avr_bdesc[id].fndecl;
+
+ return error_mark_node;
+}
+
+
static void
avr_init_builtin_int24 (void)
{
(*lang_hooks.types.register_builtin_type) (uint24_type, "__uint24");
}
-#define DEF_BUILTIN(NAME, TYPE, CODE) \
- do \
- { \
- add_builtin_function ((NAME), (TYPE), (CODE), BUILT_IN_MD, \
- NULL, NULL_TREE); \
- } while (0)
-
/* Implement `TARGET_INIT_BUILTINS' */
/* Set up all builtin functions for this target. */
unsigned_char_type_node,
NULL_TREE);
- DEF_BUILTIN ("__builtin_avr_nop", void_ftype_void, AVR_BUILTIN_NOP);
- DEF_BUILTIN ("__builtin_avr_sei", void_ftype_void, AVR_BUILTIN_SEI);
- DEF_BUILTIN ("__builtin_avr_cli", void_ftype_void, AVR_BUILTIN_CLI);
- DEF_BUILTIN ("__builtin_avr_wdr", void_ftype_void, AVR_BUILTIN_WDR);
- DEF_BUILTIN ("__builtin_avr_sleep", void_ftype_void, AVR_BUILTIN_SLEEP);
- DEF_BUILTIN ("__builtin_avr_swap", uchar_ftype_uchar, AVR_BUILTIN_SWAP);
- DEF_BUILTIN ("__builtin_avr_delay_cycles", void_ftype_ulong,
- AVR_BUILTIN_DELAY_CYCLES);
-
- DEF_BUILTIN ("__builtin_avr_fmul", uint_ftype_uchar_uchar,
- AVR_BUILTIN_FMUL);
- DEF_BUILTIN ("__builtin_avr_fmuls", int_ftype_char_char,
- AVR_BUILTIN_FMULS);
- DEF_BUILTIN ("__builtin_avr_fmulsu", int_ftype_char_uchar,
- AVR_BUILTIN_FMULSU);
-
- DEF_BUILTIN ("__builtin_avr_insert_bits", uchar_ftype_ulong_uchar_uchar,
- AVR_BUILTIN_INSERT_BITS);
+ tree const_memx_void_node
+ = build_qualified_type (void_type_node,
+ TYPE_QUAL_CONST
+ | ENCODE_QUAL_ADDR_SPACE (ADDR_SPACE_MEMX));
- avr_init_builtin_int24 ();
-}
+ tree const_memx_ptr_type_node
+ = build_pointer_type_for_mode (const_memx_void_node, PSImode, false);
+
+ tree char_ftype_const_memx_ptr
+ = build_function_type_list (char_type_node,
+ const_memx_ptr_type_node,
+ NULL);
+#define DEF_BUILTIN(NAME, N_ARGS, ID, TYPE, CODE) \
+ gcc_assert (ID < AVR_BUILTIN_COUNT); \
+ avr_bdesc[ID].fndecl \
+ = add_builtin_function (NAME, TYPE, ID, BUILT_IN_MD, NULL, NULL_TREE);
+#include "builtins.def"
#undef DEF_BUILTIN
+
+ avr_init_builtin_int24 ();
+}
-struct avr_builtin_description
-{
- const enum insn_code icode;
- const char *const name;
- const enum avr_builtin_id id;
-};
-
-static const struct avr_builtin_description
-bdesc_1arg[] =
- {
- { CODE_FOR_rotlqi3_4, "__builtin_avr_swap", AVR_BUILTIN_SWAP }
- };
-
-static const struct avr_builtin_description
-bdesc_2arg[] =
- {
- { CODE_FOR_fmul, "__builtin_avr_fmul", AVR_BUILTIN_FMUL },
- { CODE_FOR_fmuls, "__builtin_avr_fmuls", AVR_BUILTIN_FMULS },
- { CODE_FOR_fmulsu, "__builtin_avr_fmulsu", AVR_BUILTIN_FMULSU }
- };
-
-static const struct avr_builtin_description
-bdesc_3arg[] =
- {
- { CODE_FOR_insert_bits, "__builtin_avr_insert_bits",
- AVR_BUILTIN_INSERT_BITS }
- };
/* Subroutine of avr_expand_builtin to take care of unop insns. */
}
+/* Implement `TARGET_EXPAND_BUILTIN'. */
/* Expand an expression EXP that calls a built-in function,
with result going to TARGET if that's convenient
(and in mode MODE if that's convenient).
enum machine_mode mode ATTRIBUTE_UNUSED,
int ignore ATTRIBUTE_UNUSED)
{
- size_t i;
- const struct avr_builtin_description *d;
tree fndecl = TREE_OPERAND (CALL_EXPR_FN (exp), 0);
const char* bname = IDENTIFIER_POINTER (DECL_NAME (fndecl));
unsigned int id = DECL_FUNCTION_CODE (fndecl);
+ const struct avr_builtin_description *d = &avr_bdesc[id];
tree arg0;
rtx op0;
+ gcc_assert (id < AVR_BUILTIN_COUNT);
+
switch (id)
{
case AVR_BUILTIN_NOP:
emit_insn (gen_nopv (GEN_INT(1)));
return 0;
- case AVR_BUILTIN_SEI:
- emit_insn (gen_enable_interrupt ());
- return 0;
-
- case AVR_BUILTIN_CLI:
- emit_insn (gen_disable_interrupt ());
- return 0;
-
- case AVR_BUILTIN_WDR:
- emit_insn (gen_wdr ());
- return 0;
-
- case AVR_BUILTIN_SLEEP:
- emit_insn (gen_sleep ());
- return 0;
-
case AVR_BUILTIN_DELAY_CYCLES:
{
arg0 = CALL_EXPR_ARG (exp, 0);
op0 = expand_expr (arg0, NULL_RTX, VOIDmode, EXPAND_NORMAL);
- if (! CONST_INT_P (op0))
+ if (!CONST_INT_P (op0))
error ("%s expects a compile time integer constant", bname);
+ else
+ avr_expand_delay_cycles (op0);
- avr_expand_delay_cycles (op0);
return 0;
}
}
}
- for (i = 0, d = bdesc_1arg; i < ARRAY_SIZE (bdesc_1arg); i++, d++)
- if (d->id == id)
+ /* No special treatment needed: vanilla expand. */
+
+ switch (d->n_args)
+ {
+ case 0:
+ emit_insn ((GEN_FCN (d->icode)) (target));
+ return 0;
+
+ case 1:
return avr_expand_unop_builtin (d->icode, exp, target);
-
- for (i = 0, d = bdesc_2arg; i < ARRAY_SIZE (bdesc_2arg); i++, d++)
- if (d->id == id)
+
+ case 2:
return avr_expand_binop_builtin (d->icode, exp, target);
-
- for (i = 0, d = bdesc_3arg; i < ARRAY_SIZE (bdesc_3arg); i++, d++)
- if (d->id == id)
+
+ case 3:
return avr_expand_triop_builtin (d->icode, exp, target);
-
+ }
+
gcc_unreachable ();
}
default:
break;
+ case AVR_BUILTIN_SWAP:
+ {
+ return fold_build2 (LROTATE_EXPR, val_type, arg[0],
+ build_int_cst (val_type, 4));
+ }
+
case AVR_BUILTIN_INSERT_BITS:
{
tree tbits = arg[1];
tree tval = arg[2];
tree tmap;
tree map_type = TREE_VALUE (TYPE_ARG_TYPES (TREE_TYPE (fndecl)));
- double_int map = tree_to_double_int (arg[0]);
+ double_int map;
bool changed = false;
unsigned i;
avr_map_op_t best_g;
+
+ if (TREE_CODE (arg[0]) != INTEGER_CST)
+ {
+ /* No constant as first argument: Don't fold this and run into
+ error in avr_expand_builtin. */
+
+ break;
+ }
+ map = tree_to_double_int (arg[0]);
tmap = double_int_to_tree (map_type, map);
if (TREE_CODE (tval) != INTEGER_CST
return NULL_TREE;
}
-
\f
+
+/* Initialize the GCC target structure. */
+
+#undef TARGET_ASM_ALIGNED_HI_OP
+#define TARGET_ASM_ALIGNED_HI_OP "\t.word\t"
+#undef TARGET_ASM_ALIGNED_SI_OP
+#define TARGET_ASM_ALIGNED_SI_OP "\t.long\t"
+#undef TARGET_ASM_UNALIGNED_HI_OP
+#define TARGET_ASM_UNALIGNED_HI_OP "\t.word\t"
+#undef TARGET_ASM_UNALIGNED_SI_OP
+#define TARGET_ASM_UNALIGNED_SI_OP "\t.long\t"
+#undef TARGET_ASM_INTEGER
+#define TARGET_ASM_INTEGER avr_assemble_integer
+#undef TARGET_ASM_FILE_START
+#define TARGET_ASM_FILE_START avr_file_start
+#undef TARGET_ASM_FILE_END
+#define TARGET_ASM_FILE_END avr_file_end
+
+#undef TARGET_ASM_FUNCTION_END_PROLOGUE
+#define TARGET_ASM_FUNCTION_END_PROLOGUE avr_asm_function_end_prologue
+#undef TARGET_ASM_FUNCTION_BEGIN_EPILOGUE
+#define TARGET_ASM_FUNCTION_BEGIN_EPILOGUE avr_asm_function_begin_epilogue
+
+#undef TARGET_FUNCTION_VALUE
+#define TARGET_FUNCTION_VALUE avr_function_value
+#undef TARGET_LIBCALL_VALUE
+#define TARGET_LIBCALL_VALUE avr_libcall_value
+#undef TARGET_FUNCTION_VALUE_REGNO_P
+#define TARGET_FUNCTION_VALUE_REGNO_P avr_function_value_regno_p
+
+#undef TARGET_ATTRIBUTE_TABLE
+#define TARGET_ATTRIBUTE_TABLE avr_attribute_table
+#undef TARGET_INSERT_ATTRIBUTES
+#define TARGET_INSERT_ATTRIBUTES avr_insert_attributes
+#undef TARGET_SECTION_TYPE_FLAGS
+#define TARGET_SECTION_TYPE_FLAGS avr_section_type_flags
+
+#undef TARGET_ASM_NAMED_SECTION
+#define TARGET_ASM_NAMED_SECTION avr_asm_named_section
+#undef TARGET_ASM_INIT_SECTIONS
+#define TARGET_ASM_INIT_SECTIONS avr_asm_init_sections
+#undef TARGET_ENCODE_SECTION_INFO
+#define TARGET_ENCODE_SECTION_INFO avr_encode_section_info
+#undef TARGET_ASM_SELECT_SECTION
+#define TARGET_ASM_SELECT_SECTION avr_asm_select_section
+
+#undef TARGET_REGISTER_MOVE_COST
+#define TARGET_REGISTER_MOVE_COST avr_register_move_cost
+#undef TARGET_MEMORY_MOVE_COST
+#define TARGET_MEMORY_MOVE_COST avr_memory_move_cost
+#undef TARGET_RTX_COSTS
+#define TARGET_RTX_COSTS avr_rtx_costs
+#undef TARGET_ADDRESS_COST
+#define TARGET_ADDRESS_COST avr_address_cost
+#undef TARGET_MACHINE_DEPENDENT_REORG
+#define TARGET_MACHINE_DEPENDENT_REORG avr_reorg
+#undef TARGET_FUNCTION_ARG
+#define TARGET_FUNCTION_ARG avr_function_arg
+#undef TARGET_FUNCTION_ARG_ADVANCE
+#define TARGET_FUNCTION_ARG_ADVANCE avr_function_arg_advance
+
+#undef TARGET_SET_CURRENT_FUNCTION
+#define TARGET_SET_CURRENT_FUNCTION avr_set_current_function
+
+#undef TARGET_RETURN_IN_MEMORY
+#define TARGET_RETURN_IN_MEMORY avr_return_in_memory
+
+#undef TARGET_STRICT_ARGUMENT_NAMING
+#define TARGET_STRICT_ARGUMENT_NAMING hook_bool_CUMULATIVE_ARGS_true
+
+#undef TARGET_BUILTIN_SETJMP_FRAME_VALUE
+#define TARGET_BUILTIN_SETJMP_FRAME_VALUE avr_builtin_setjmp_frame_value
+
+#undef TARGET_HARD_REGNO_SCRATCH_OK
+#define TARGET_HARD_REGNO_SCRATCH_OK avr_hard_regno_scratch_ok
+#undef TARGET_CASE_VALUES_THRESHOLD
+#define TARGET_CASE_VALUES_THRESHOLD avr_case_values_threshold
+
+#undef TARGET_FRAME_POINTER_REQUIRED
+#define TARGET_FRAME_POINTER_REQUIRED avr_frame_pointer_required_p
+#undef TARGET_CAN_ELIMINATE
+#define TARGET_CAN_ELIMINATE avr_can_eliminate
+
+#undef TARGET_ALLOCATE_STACK_SLOTS_FOR_ARGS
+#define TARGET_ALLOCATE_STACK_SLOTS_FOR_ARGS avr_allocate_stack_slots_for_args
+
+#undef TARGET_CLASS_LIKELY_SPILLED_P
+#define TARGET_CLASS_LIKELY_SPILLED_P avr_class_likely_spilled_p
+
+#undef TARGET_OPTION_OVERRIDE
+#define TARGET_OPTION_OVERRIDE avr_option_override
+
+#undef TARGET_CANNOT_MODIFY_JUMPS_P
+#define TARGET_CANNOT_MODIFY_JUMPS_P avr_cannot_modify_jumps_p
+
+#undef TARGET_FUNCTION_OK_FOR_SIBCALL
+#define TARGET_FUNCTION_OK_FOR_SIBCALL avr_function_ok_for_sibcall
+
+#undef TARGET_INIT_BUILTINS
+#define TARGET_INIT_BUILTINS avr_init_builtins
+
+#undef TARGET_BUILTIN_DECL
+#define TARGET_BUILTIN_DECL avr_builtin_decl
+
+#undef TARGET_EXPAND_BUILTIN
+#define TARGET_EXPAND_BUILTIN avr_expand_builtin
+
+#undef TARGET_FOLD_BUILTIN
+#define TARGET_FOLD_BUILTIN avr_fold_builtin
+
+#undef TARGET_ASM_FUNCTION_RODATA_SECTION
+#define TARGET_ASM_FUNCTION_RODATA_SECTION avr_asm_function_rodata_section
+
+#undef TARGET_SCALAR_MODE_SUPPORTED_P
+#define TARGET_SCALAR_MODE_SUPPORTED_P avr_scalar_mode_supported_p
+
+#undef TARGET_ADDR_SPACE_SUBSET_P
+#define TARGET_ADDR_SPACE_SUBSET_P avr_addr_space_subset_p
+
+#undef TARGET_ADDR_SPACE_CONVERT
+#define TARGET_ADDR_SPACE_CONVERT avr_addr_space_convert
+
+#undef TARGET_ADDR_SPACE_ADDRESS_MODE
+#define TARGET_ADDR_SPACE_ADDRESS_MODE avr_addr_space_address_mode
+
+#undef TARGET_ADDR_SPACE_POINTER_MODE
+#define TARGET_ADDR_SPACE_POINTER_MODE avr_addr_space_pointer_mode
+
+#undef TARGET_ADDR_SPACE_LEGITIMATE_ADDRESS_P
+#define TARGET_ADDR_SPACE_LEGITIMATE_ADDRESS_P \
+ avr_addr_space_legitimate_address_p
+
+#undef TARGET_ADDR_SPACE_LEGITIMIZE_ADDRESS
+#define TARGET_ADDR_SPACE_LEGITIMIZE_ADDRESS avr_addr_space_legitimize_address
+
+#undef TARGET_MODE_DEPENDENT_ADDRESS_P
+#define TARGET_MODE_DEPENDENT_ADDRESS_P avr_mode_dependent_address_p
+
+#undef TARGET_PRINT_OPERAND
+#define TARGET_PRINT_OPERAND avr_print_operand
+#undef TARGET_PRINT_OPERAND_ADDRESS
+#define TARGET_PRINT_OPERAND_ADDRESS avr_print_operand_address
+#undef TARGET_PRINT_OPERAND_PUNCT_VALID_P
+#define TARGET_PRINT_OPERAND_PUNCT_VALID_P avr_print_operand_punct_valid_p
+
struct gcc_target targetm = TARGET_INITIALIZER;
+\f
#include "gt-avr.h"
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