#include "target-def.h"
#include "integrate.h"
#include "langhooks.h"
-#include "score7.h"
+#include "cfglayout.h"
#include "df.h"
#include "opts.h"
-static void score_option_override (void);
+#define SCORE_SDATA_MAX score_sdata_max
+#define SCORE_STACK_ALIGN(LOC) (((LOC) + 3) & ~3)
+#define SCORE_PROLOGUE_TEMP_REGNUM (GP_REG_FIRST + 8)
+#define SCORE_EPILOGUE_TEMP_REGNUM (GP_REG_FIRST + 8)
+#define SCORE_DEFAULT_SDATA_MAX 8
+
+#define BITSET_P(VALUE, BIT) (((VALUE) & (1L << (BIT))) != 0)
+#define INS_BUF_SZ 128
+
+enum score_address_type
+{
+ SCORE_ADD_REG,
+ SCORE_ADD_CONST_INT,
+ SCORE_ADD_SYMBOLIC
+};
+
+struct score_frame_info
+{
+ HOST_WIDE_INT total_size; /* bytes that the entire frame takes up */
+ HOST_WIDE_INT var_size; /* bytes that variables take up */
+ HOST_WIDE_INT args_size; /* bytes that outgoing arguments take up */
+ HOST_WIDE_INT gp_reg_size; /* bytes needed to store gp regs */
+ HOST_WIDE_INT gp_sp_offset; /* offset from new sp to store gp registers */
+ HOST_WIDE_INT cprestore_size; /* # bytes that the .cprestore slot takes up */
+ unsigned int mask; /* mask of saved gp registers */
+ int num_gp; /* number of gp registers saved */
+};
+
+struct score_arg_info
+{
+ unsigned int num_bytes; /* The argument's size in bytes */
+ unsigned int reg_words; /* The number of words passed in registers */
+ unsigned int reg_offset; /* The offset of the first register from */
+ /* GP_ARG_FIRST or FP_ARG_FIRST etc */
+ unsigned int stack_words; /* The number of words that must be passed */
+ /* on the stack */
+ unsigned int stack_offset; /* The offset from the start of the stack */
+ /* overflow area */
+};
+
+#ifdef RTX_CODE
+struct score_address_info
+{
+ enum score_address_type type;
+ rtx reg;
+ rtx offset;
+ enum rtx_code code;
+ enum score_symbol_type symbol_type;
+};
+#endif
+
+static int score_sdata_max;
+static char score_ins[INS_BUF_SZ + 8];
+
+struct extern_list *extern_head = 0;
#undef TARGET_ASM_FILE_START
#define TARGET_ASM_FILE_START score_asm_file_start
#undef TARGET_TRAMPOLINE_INIT
#define TARGET_TRAMPOLINE_INIT score_trampoline_init
-struct extern_list *extern_head = 0;
+/* Return true if SYMBOL is a SYMBOL_REF and OFFSET + SYMBOL points
+ to the same object as SYMBOL. */
+static int
+score_offset_within_object_p (rtx symbol, HOST_WIDE_INT offset)
+{
+ if (GET_CODE (symbol) != SYMBOL_REF)
+ return 0;
+
+ if (CONSTANT_POOL_ADDRESS_P (symbol)
+ && offset >= 0
+ && offset < (int)GET_MODE_SIZE (get_pool_mode (symbol)))
+ return 1;
+
+ if (SYMBOL_REF_DECL (symbol) != 0
+ && offset >= 0
+ && offset < int_size_in_bytes (TREE_TYPE (SYMBOL_REF_DECL (symbol))))
+ return 1;
+
+ return 0;
+}
+
+/* Split X into a base and a constant offset, storing them in *BASE
+ and *OFFSET respectively. */
+static void
+score_split_const (rtx x, rtx *base, HOST_WIDE_INT *offset)
+{
+ *offset = 0;
+
+ if (GET_CODE (x) == CONST)
+ x = XEXP (x, 0);
+
+ if (GET_CODE (x) == PLUS && GET_CODE (XEXP (x, 1)) == CONST_INT)
+ {
+ *offset += INTVAL (XEXP (x, 1));
+ x = XEXP (x, 0);
+ }
+
+ *base = x;
+}
+
+/* Classify symbol X, which must be a SYMBOL_REF or a LABEL_REF. */
+static enum score_symbol_type
+score_classify_symbol (rtx x)
+{
+ if (GET_CODE (x) == LABEL_REF)
+ return SYMBOL_GENERAL;
+
+ gcc_assert (GET_CODE (x) == SYMBOL_REF);
+
+ if (CONSTANT_POOL_ADDRESS_P (x))
+ {
+ if (GET_MODE_SIZE (get_pool_mode (x)) <= SCORE_SDATA_MAX)
+ return SYMBOL_SMALL_DATA;
+ return SYMBOL_GENERAL;
+ }
+ if (SYMBOL_REF_SMALL_P (x))
+ return SYMBOL_SMALL_DATA;
+ return SYMBOL_GENERAL;
+}
-/* default 0 = NO_REGS */
-enum reg_class score_char_to_class[256];
+/* Return true if the current function must save REGNO. */
+static int
+score_save_reg_p (unsigned int regno)
+{
+ /* Check call-saved registers. */
+ if (df_regs_ever_live_p (regno) && !call_used_regs[regno])
+ return 1;
+
+ /* We need to save the old frame pointer before setting up a new one. */
+ if (regno == HARD_FRAME_POINTER_REGNUM && frame_pointer_needed)
+ return 1;
+
+ /* We need to save the incoming return address if it is ever clobbered
+ within the function. */
+ if (regno == RA_REGNUM && df_regs_ever_live_p (regno))
+ return 1;
+
+ return 0;
+}
+
+/* Return one word of double-word value OP, taking into account the fixed
+ endianness of certain registers. HIGH_P is true to select the high part,
+ false to select the low part. */
+static rtx
+score_subw (rtx op, int high_p)
+{
+ unsigned int byte;
+ enum machine_mode mode = GET_MODE (op);
+
+ if (mode == VOIDmode)
+ mode = DImode;
+
+ byte = (TARGET_LITTLE_ENDIAN ? high_p : !high_p) ? UNITS_PER_WORD : 0;
+
+ if (GET_CODE (op) == REG && REGNO (op) == HI_REGNUM)
+ return gen_rtx_REG (SImode, high_p ? HI_REGNUM : LO_REGNUM);
+
+ if (GET_CODE (op) == MEM)
+ return adjust_address (op, SImode, byte);
+
+ return simplify_gen_subreg (SImode, op, mode, byte);
+}
+
+static struct score_frame_info *
+score_cached_frame (void)
+{
+ static struct score_frame_info _frame_info;
+ return &_frame_info;
+}
+
+/* Return the bytes needed to compute the frame pointer from the current
+ stack pointer. SIZE is the size (in bytes) of the local variables. */
+static struct score_frame_info *
+score_compute_frame_size (HOST_WIDE_INT size)
+{
+ unsigned int regno;
+ struct score_frame_info *f = score_cached_frame ();
+
+ memset (f, 0, sizeof (struct score_frame_info));
+ f->gp_reg_size = 0;
+ f->mask = 0;
+ f->var_size = SCORE_STACK_ALIGN (size);
+ f->args_size = crtl->outgoing_args_size;
+ f->cprestore_size = flag_pic ? UNITS_PER_WORD : 0;
+ if (f->var_size == 0 && current_function_is_leaf)
+ f->args_size = f->cprestore_size = 0;
+
+ if (f->args_size == 0 && cfun->calls_alloca)
+ f->args_size = UNITS_PER_WORD;
+
+ f->total_size = f->var_size + f->args_size + f->cprestore_size;
+ for (regno = GP_REG_FIRST; regno <= GP_REG_LAST; regno++)
+ {
+ if (score_save_reg_p (regno))
+ {
+ f->gp_reg_size += GET_MODE_SIZE (SImode);
+ f->mask |= 1 << (regno - GP_REG_FIRST);
+ }
+ }
+
+ if (crtl->calls_eh_return)
+ {
+ unsigned int i;
+ for (i = 0;; ++i)
+ {
+ regno = EH_RETURN_DATA_REGNO (i);
+ if (regno == INVALID_REGNUM)
+ break;
+ f->gp_reg_size += GET_MODE_SIZE (SImode);
+ f->mask |= 1 << (regno - GP_REG_FIRST);
+ }
+ }
+
+ f->total_size += f->gp_reg_size;
+ f->num_gp = f->gp_reg_size / UNITS_PER_WORD;
+
+ if (f->mask)
+ {
+ HOST_WIDE_INT offset;
+ offset = (f->args_size + f->cprestore_size + f->var_size
+ + f->gp_reg_size - GET_MODE_SIZE (SImode));
+ f->gp_sp_offset = offset;
+ }
+ else
+ f->gp_sp_offset = 0;
+
+ return f;
+}
+
+/* Return true if X is a valid base register for the given mode.
+ Allow only hard registers if STRICT. */
+static int
+score_valid_base_register_p (rtx x, int strict)
+{
+ if (!strict && GET_CODE (x) == SUBREG)
+ x = SUBREG_REG (x);
+
+ return (GET_CODE (x) == REG
+ && score_regno_mode_ok_for_base_p (REGNO (x), strict));
+}
+
+/* Return true if X is a valid address for machine mode MODE. If it is,
+ fill in INFO appropriately. STRICT is true if we should only accept
+ hard base registers. */
+static int
+score_classify_address (struct score_address_info *info,
+ enum machine_mode mode, rtx x, int strict)
+{
+ info->code = GET_CODE (x);
+
+ switch (info->code)
+ {
+ case REG:
+ case SUBREG:
+ info->type = SCORE_ADD_REG;
+ info->reg = x;
+ info->offset = const0_rtx;
+ return score_valid_base_register_p (info->reg, strict);
+ case PLUS:
+ info->type = SCORE_ADD_REG;
+ info->reg = XEXP (x, 0);
+ info->offset = XEXP (x, 1);
+ return (score_valid_base_register_p (info->reg, strict)
+ && GET_CODE (info->offset) == CONST_INT
+ && IMM_IN_RANGE (INTVAL (info->offset), 15, 1));
+ case PRE_DEC:
+ case POST_DEC:
+ case PRE_INC:
+ case POST_INC:
+ if (GET_MODE_SIZE (mode) > GET_MODE_SIZE (SImode))
+ return false;
+ info->type = SCORE_ADD_REG;
+ info->reg = XEXP (x, 0);
+ info->offset = GEN_INT (GET_MODE_SIZE (mode));
+ return score_valid_base_register_p (info->reg, strict);
+ case CONST_INT:
+ info->type = SCORE_ADD_CONST_INT;
+ return IMM_IN_RANGE (INTVAL (x), 15, 1);
+ case CONST:
+ case LABEL_REF:
+ case SYMBOL_REF:
+ info->type = SCORE_ADD_SYMBOLIC;
+ return (score_symbolic_constant_p (x, &info->symbol_type)
+ && (info->symbol_type == SYMBOL_GENERAL
+ || info->symbol_type == SYMBOL_SMALL_DATA));
+ default:
+ return 0;
+ }
+}
/* Implement TARGET_RETURN_IN_MEMORY. In S+core,
small structures are returned in a register.
static bool
score_return_in_memory (const_tree type, const_tree fndecl ATTRIBUTE_UNUSED)
{
- if (TARGET_SCORE7 || TARGET_SCORE7D)
- return score7_return_in_memory (type, fndecl);
- else
- gcc_unreachable ();
+ return ((TYPE_MODE (type) == BLKmode)
+ || (int_size_in_bytes (type) > 2 * UNITS_PER_WORD)
+ || (int_size_in_bytes (type) == -1));
}
-/* Return nonzero when an argument must be passed by reference. */
-static bool
-score_pass_by_reference (cumulative_args_t cum ATTRIBUTE_UNUSED,
- enum machine_mode mode, const_tree type,
- bool named ATTRIBUTE_UNUSED)
+/* Return a legitimate address for REG + OFFSET. */
+static rtx
+score_add_offset (rtx reg, HOST_WIDE_INT offset)
{
- /* If we have a variable-sized parameter, we have no choice. */
- return targetm.calls.must_pass_in_stack (mode, type);
+ if (!IMM_IN_RANGE (offset, 15, 1))
+ {
+ reg = expand_simple_binop (GET_MODE (reg), PLUS,
+ gen_int_mode (offset & 0xffffc000,
+ GET_MODE (reg)),
+ reg, NULL, 0, OPTAB_WIDEN);
+ offset &= 0x3fff;
+ }
+
+ return plus_constant (reg, offset);
}
/* Implement TARGET_ASM_OUTPUT_MI_THUNK. Generate rtl rather than asm text
HOST_WIDE_INT delta, HOST_WIDE_INT vcall_offset,
tree function)
{
- if (TARGET_SCORE7 || TARGET_SCORE7D)
- score7_output_mi_thunk (file, thunk_fndecl, delta, vcall_offset, function);
+ rtx this_rtx, temp1, insn, fnaddr;
+
+ /* Pretend to be a post-reload pass while generating rtl. */
+ reload_completed = 1;
+
+ /* Mark the end of the (empty) prologue. */
+ emit_note (NOTE_INSN_PROLOGUE_END);
+
+ /* We need two temporary registers in some cases. */
+ temp1 = gen_rtx_REG (Pmode, 8);
+
+ /* Find out which register contains the "this" pointer. */
+ if (aggregate_value_p (TREE_TYPE (TREE_TYPE (function)), function))
+ this_rtx = gen_rtx_REG (Pmode, ARG_REG_FIRST + 1);
else
- gcc_unreachable ();
+ this_rtx = gen_rtx_REG (Pmode, ARG_REG_FIRST);
+
+ /* Add DELTA to THIS_RTX. */
+ if (delta != 0)
+ {
+ rtx offset = GEN_INT (delta);
+ if (!(delta >= -32768 && delta <= 32767))
+ {
+ emit_move_insn (temp1, offset);
+ offset = temp1;
+ }
+ emit_insn (gen_add3_insn (this_rtx, this_rtx, offset));
+ }
+
+ /* If needed, add *(*THIS_RTX + VCALL_OFFSET) to THIS_RTX. */
+ if (vcall_offset != 0)
+ {
+ rtx addr;
+
+ /* Set TEMP1 to *THIS_RTX. */
+ emit_move_insn (temp1, gen_rtx_MEM (Pmode, this_rtx));
+
+ /* Set ADDR to a legitimate address for *THIS_RTX + VCALL_OFFSET. */
+ addr = score_add_offset (temp1, vcall_offset);
+
+ /* Load the offset and add it to THIS_RTX. */
+ emit_move_insn (temp1, gen_rtx_MEM (Pmode, addr));
+ emit_insn (gen_add3_insn (this_rtx, this_rtx, temp1));
+ }
+
+ /* Jump to the target function. */
+ fnaddr = XEXP (DECL_RTL (function), 0);
+ insn = emit_call_insn (gen_sibcall_internal_score7 (fnaddr, const0_rtx));
+ SIBLING_CALL_P (insn) = 1;
+
+ /* Run just enough of rest_of_compilation. This sequence was
+ "borrowed" from alpha.c. */
+ insn = get_insns ();
+ insn_locators_alloc ();
+ split_all_insns_noflow ();
+ shorten_branches (insn);
+ final_start_function (insn, file, 1);
+ final (insn, file, 1);
+ final_end_function ();
+
+ /* Clean up the vars set above. Note that final_end_function resets
+ the global pointer for us. */
+ reload_completed = 0;
}
-/* Implement TARGET_FUNCTION_OK_FOR_SIBCALL. */
-static bool
-score_function_ok_for_sibcall (ATTRIBUTE_UNUSED tree decl,
- ATTRIBUTE_UNUSED tree exp)
+/* Copy VALUE to a register and return that register. If new psuedos
+ are allowed, copy it into a new register, otherwise use DEST. */
+static rtx
+score_force_temporary (rtx dest, rtx value)
{
- return true;
+ if (can_create_pseudo_p ())
+ return force_reg (Pmode, value);
+ else
+ {
+ emit_move_insn (copy_rtx (dest), value);
+ return dest;
+ }
+}
+
+/* Return a LO_SUM expression for ADDR. TEMP is as for score_force_temporary
+ and is used to load the high part into a register. */
+static rtx
+score_split_symbol (rtx temp, rtx addr)
+{
+ rtx high = score_force_temporary (temp,
+ gen_rtx_HIGH (Pmode, copy_rtx (addr)));
+ return gen_rtx_LO_SUM (Pmode, high, addr);
+}
+
+/* This function is used to implement LEGITIMIZE_ADDRESS. If X can
+ be legitimized in a way that the generic machinery might not expect,
+ return the new address. */
+static rtx
+score_legitimize_address (rtx x)
+{
+ enum score_symbol_type symbol_type;
+
+ if (score_symbolic_constant_p (x, &symbol_type)
+ && symbol_type == SYMBOL_GENERAL)
+ return score_split_symbol (0, x);
+
+ if (GET_CODE (x) == PLUS
+ && GET_CODE (XEXP (x, 1)) == CONST_INT)
+ {
+ rtx reg = XEXP (x, 0);
+ if (!score_valid_base_register_p (reg, 0))
+ reg = copy_to_mode_reg (Pmode, reg);
+ return score_add_offset (reg, INTVAL (XEXP (x, 1)));
+ }
+
+ return x;
+}
+
+/* Fill INFO with information about a single argument. CUM is the
+ cumulative state for earlier arguments. MODE is the mode of this
+ argument and TYPE is its type (if known). NAMED is true if this
+ is a named (fixed) argument rather than a variable one. */
+static void
+score_classify_arg (const CUMULATIVE_ARGS *cum, enum machine_mode mode,
+ const_tree type, bool named, struct score_arg_info *info)
+{
+ int even_reg_p;
+ unsigned int num_words, max_regs;
+
+ even_reg_p = 0;
+ if (GET_MODE_CLASS (mode) == MODE_INT
+ || GET_MODE_CLASS (mode) == MODE_FLOAT)
+ even_reg_p = (GET_MODE_SIZE (mode) > UNITS_PER_WORD);
+ else
+ if (type != NULL_TREE && TYPE_ALIGN (type) > BITS_PER_WORD && named)
+ even_reg_p = 1;
+
+ if (TARGET_MUST_PASS_IN_STACK (mode, type))
+ info->reg_offset = ARG_REG_NUM;
+ else
+ {
+ info->reg_offset = cum->num_gprs;
+ if (even_reg_p)
+ info->reg_offset += info->reg_offset & 1;
+ }
+
+ if (mode == BLKmode)
+ info->num_bytes = int_size_in_bytes (type);
+ else
+ info->num_bytes = GET_MODE_SIZE (mode);
+
+ num_words = (info->num_bytes + UNITS_PER_WORD - 1) / UNITS_PER_WORD;
+ max_regs = ARG_REG_NUM - info->reg_offset;
+
+ /* Partition the argument between registers and stack. */
+ info->reg_words = MIN (num_words, max_regs);
+ info->stack_words = num_words - info->reg_words;
+
+ /* The alignment applied to registers is also applied to stack arguments. */
+ if (info->stack_words)
+ {
+ info->stack_offset = cum->stack_words;
+ if (even_reg_p)
+ info->stack_offset += info->stack_offset & 1;
+ }
}
/* Set up the stack and frame (if desired) for the function. */
static void
score_function_prologue (FILE *file, HOST_WIDE_INT size ATTRIBUTE_UNUSED)
{
- if (TARGET_SCORE7 || TARGET_SCORE7D)
- score7_function_prologue (file, size);
- else
- gcc_unreachable ();
+ const char *fnname;
+ struct score_frame_info *f = score_cached_frame ();
+ HOST_WIDE_INT tsize = f->total_size;
+
+ fnname = XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0);
+ if (!flag_inhibit_size_directive)
+ {
+ fputs ("\t.ent\t", file);
+ assemble_name (file, fnname);
+ fputs ("\n", file);
+ }
+ assemble_name (file, fnname);
+ fputs (":\n", file);
+
+ if (!flag_inhibit_size_directive)
+ {
+ fprintf (file,
+ "\t.frame\t%s," HOST_WIDE_INT_PRINT_DEC ",%s, %d\t\t"
+ "# vars= " HOST_WIDE_INT_PRINT_DEC ", regs= %d"
+ ", args= " HOST_WIDE_INT_PRINT_DEC
+ ", gp= " HOST_WIDE_INT_PRINT_DEC "\n",
+ (reg_names[(frame_pointer_needed)
+ ? HARD_FRAME_POINTER_REGNUM : STACK_POINTER_REGNUM]),
+ tsize,
+ reg_names[RA_REGNUM],
+ current_function_is_leaf ? 1 : 0,
+ f->var_size,
+ f->num_gp,
+ f->args_size,
+ f->cprestore_size);
+
+ fprintf(file, "\t.mask\t0x%08x," HOST_WIDE_INT_PRINT_DEC "\n",
+ f->mask,
+ (f->gp_sp_offset - f->total_size));
+ }
}
/* Do any necessary cleanup after a function to restore stack, frame,
and regs. */
static void
-score_function_epilogue (FILE *file,
- HOST_WIDE_INT size ATTRIBUTE_UNUSED)
+score_function_epilogue (FILE *file, HOST_WIDE_INT size ATTRIBUTE_UNUSED)
{
- if (TARGET_SCORE7 || TARGET_SCORE7D)
- score7_function_epilogue (file, size);
- else
- gcc_unreachable ();
+ if (!flag_inhibit_size_directive)
+ {
+ const char *fnname;
+ fnname = XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0);
+ fputs ("\t.end\t", file);
+ assemble_name (file, fnname);
+ fputs ("\n", file);
+ }
}
-/* Implement TARGET_SCHED_ISSUE_RATE. */
-static int
-score_issue_rate (void)
+/* Returns true if X contains a SYMBOL_REF. */
+static bool
+score_symbolic_expression_p (rtx x)
{
- return 1;
+ if (GET_CODE (x) == SYMBOL_REF)
+ return true;
+
+ if (GET_CODE (x) == CONST)
+ return score_symbolic_expression_p (XEXP (x, 0));
+
+ if (UNARY_P (x))
+ return score_symbolic_expression_p (XEXP (x, 0));
+
+ if (ARITHMETIC_P (x))
+ return (score_symbolic_expression_p (XEXP (x, 0))
+ || score_symbolic_expression_p (XEXP (x, 1)));
+
+ return false;
}
/* Choose the section to use for the constant rtx expression X that has
mode MODE. */
static section *
-score_select_rtx_section (enum machine_mode mode, rtx x,
- unsigned HOST_WIDE_INT align)
+score_select_rtx_section (enum machine_mode mode, rtx x, unsigned HOST_WIDE_INT align)
{
- if (TARGET_SCORE7 || TARGET_SCORE7D)
- return score7_select_rtx_section (mode, x, align);
+ if (GET_MODE_SIZE (mode) <= SCORE_SDATA_MAX)
+ return get_named_section (0, ".sdata", 0);
+ else if (flag_pic && score_symbolic_expression_p (x))
+ return get_named_section (0, ".data.rel.ro", 3);
else
- gcc_unreachable ();
+ return mergeable_constant_section (mode, align, 0);
}
/* Implement TARGET_IN_SMALL_DATA_P. */
static bool
score_in_small_data_p (const_tree decl)
{
- if (TARGET_SCORE7 || TARGET_SCORE7D)
- return score7_in_small_data_p (decl);
- else
- gcc_unreachable ();
+ HOST_WIDE_INT size;
+
+ if (TREE_CODE (decl) == STRING_CST
+ || TREE_CODE (decl) == FUNCTION_DECL)
+ return false;
+
+ if (TREE_CODE (decl) == VAR_DECL && DECL_SECTION_NAME (decl) != 0)
+ {
+ const char *name;
+ name = TREE_STRING_POINTER (DECL_SECTION_NAME (decl));
+ if (strcmp (name, ".sdata") != 0
+ && strcmp (name, ".sbss") != 0)
+ return true;
+ if (!DECL_EXTERNAL (decl))
+ return false;
+ }
+ size = int_size_in_bytes (TREE_TYPE (decl));
+ return (size > 0 && size <= SCORE_SDATA_MAX);
}
/* Implement TARGET_ASM_FILE_START. */
static void
score_asm_file_start (void)
{
- if (TARGET_SCORE7D)
- fprintf (asm_out_file, "# Sunplus S+core7d %s rev=%s\n",
- TARGET_LITTLE_ENDIAN ? "el" : "eb", SCORE_GCC_VERSION);
- else if (TARGET_SCORE7)
- fprintf (asm_out_file, "# Sunplus S+core7 %s rev=%s\n",
- TARGET_LITTLE_ENDIAN ? "el" : "eb", SCORE_GCC_VERSION);
- else
- fprintf (asm_out_file, "# Sunplus S+core unknown %s rev=%s\n",
- TARGET_LITTLE_ENDIAN ? "el" : "eb", SCORE_GCC_VERSION);
-
default_file_start ();
+ fprintf (asm_out_file, ASM_COMMENT_START
+ "GCC for S+core %s \n", SCORE_GCC_VERSION);
if (flag_pic)
fprintf (asm_out_file, "\t.set pic\n");
static void
score_asm_file_end (void)
{
- if (TARGET_SCORE7 || TARGET_SCORE7D)
- score7_asm_file_end ();
- else
- gcc_unreachable ();
+ tree name_tree;
+ struct extern_list *p;
+ if (extern_head)
+ {
+ fputs ("\n", asm_out_file);
+ for (p = extern_head; p != 0; p = p->next)
+ {
+ name_tree = get_identifier (p->name);
+ if (!TREE_ASM_WRITTEN (name_tree)
+ && TREE_SYMBOL_REFERENCED (name_tree))
+ {
+ TREE_ASM_WRITTEN (name_tree) = 1;
+ fputs ("\t.extern\t", asm_out_file);
+ assemble_name (asm_out_file, p->name);
+ fprintf (asm_out_file, ", %d\n", p->size);
+ }
+ }
+ }
}
/* Implement TARGET_OPTION_OVERRIDE hook. */
static void
score_option_override (void)
{
- if (TARGET_SCORE7 || TARGET_SCORE7D)
- score7_option_override ();
+ flag_pic = false;
+ score_sdata_max = SCORE_DEFAULT_SDATA_MAX;
+
}
/* Implement REGNO_REG_CLASS macro. */
int
score_reg_class (int regno)
{
- if (TARGET_SCORE7 || TARGET_SCORE7D)
- return score7_reg_class (regno);
- else
- gcc_unreachable ();
+ int c;
+ gcc_assert (regno >= 0 && regno < FIRST_PSEUDO_REGISTER);
+
+ if (regno == FRAME_POINTER_REGNUM
+ || regno == ARG_POINTER_REGNUM)
+ return ALL_REGS;
+
+ for (c = 0; c < N_REG_CLASSES; c++)
+ if (TEST_HARD_REG_BIT (reg_class_contents[c], regno))
+ return c;
+
+ return NO_REGS;
}
/* Implement PREFERRED_RELOAD_CLASS macro. */
enum reg_class
score_preferred_reload_class (rtx x ATTRIBUTE_UNUSED, enum reg_class rclass)
{
- if (TARGET_SCORE7 || TARGET_SCORE7D)
- return score7_preferred_reload_class (x, rclass);
- else
- gcc_unreachable ();
+ if (reg_class_subset_p (G16_REGS, rclass))
+ return G16_REGS;
+ if (reg_class_subset_p (G32_REGS, rclass))
+ return G32_REGS;
+ return rclass;
}
/* Implement SECONDARY_INPUT_RELOAD_CLASS
enum machine_mode mode ATTRIBUTE_UNUSED,
rtx x)
{
- if (TARGET_SCORE7 || TARGET_SCORE7D)
- return score7_secondary_reload_class (rclass, mode, x);
- else
- gcc_unreachable ();
+ int regno = -1;
+ if (GET_CODE (x) == REG || GET_CODE(x) == SUBREG)
+ regno = true_regnum (x);
+
+ if (!GR_REG_CLASS_P (rclass))
+ return GP_REG_P (regno) ? NO_REGS : G32_REGS;
+ return NO_REGS;
}
int
score_hard_regno_mode_ok (unsigned int regno, enum machine_mode mode)
{
- if (TARGET_SCORE7 || TARGET_SCORE7D)
- return score7_hard_regno_mode_ok (regno, mode);
+ int size = GET_MODE_SIZE (mode);
+ enum mode_class mclass = GET_MODE_CLASS (mode);
+
+ if (mclass == MODE_CC)
+ return regno == CC_REGNUM;
+ else if (regno == FRAME_POINTER_REGNUM
+ || regno == ARG_POINTER_REGNUM)
+ return mclass == MODE_INT;
+ else if (GP_REG_P (regno))
+ /* ((regno <= (GP_REG_LAST- HARD_REGNO_NREGS (dummy, mode)) + 1) */
+ return !(regno & 1) || (size <= UNITS_PER_WORD);
+ else if (CE_REG_P (regno))
+ return (mclass == MODE_INT
+ && ((size <= UNITS_PER_WORD)
+ || (regno == CE_REG_FIRST && size == 2 * UNITS_PER_WORD)));
else
- gcc_unreachable ();
-}
-
-/* We can always eliminate to the hard frame pointer. We can eliminate
- to the stack pointer unless a frame pointer is needed. */
-
-static bool
-score_can_eliminate (const int from ATTRIBUTE_UNUSED, const int to)
-{
- return (to == HARD_FRAME_POINTER_REGNUM
- || (to == STACK_POINTER_REGNUM && !frame_pointer_needed));
+ return (mclass == MODE_INT) && (size <= UNITS_PER_WORD);
}
/* Implement INITIAL_ELIMINATION_OFFSET. FROM is either the frame
score_initial_elimination_offset (int from,
int to ATTRIBUTE_UNUSED)
{
- if (TARGET_SCORE7 || TARGET_SCORE7D)
- return score7_initial_elimination_offset (from, to);
- else
- gcc_unreachable ();
-}
-
-/* Argument support functions. */
-
-/* Initialize CUMULATIVE_ARGS for a function. */
-void
-score_init_cumulative_args (CUMULATIVE_ARGS *cum,
- tree fntype ATTRIBUTE_UNUSED,
- rtx libname ATTRIBUTE_UNUSED)
-{
- memset (cum, 0, sizeof (CUMULATIVE_ARGS));
+ struct score_frame_info *f = score_compute_frame_size (get_frame_size ());
+ switch (from)
+ {
+ case ARG_POINTER_REGNUM:
+ return f->total_size;
+ case FRAME_POINTER_REGNUM:
+ return 0;
+ default:
+ gcc_unreachable ();
+ }
}
/* Implement TARGET_FUNCTION_ARG_ADVANCE hook. */
static void
-score_function_arg_advance (cumulative_args_t cum, enum machine_mode mode,
+score_function_arg_advance (cumulative_args_t cum_args, enum machine_mode mode,
const_tree type, bool named)
{
- if (TARGET_SCORE7 || TARGET_SCORE7D)
- score7_function_arg_advance (get_cumulative_args (cum), mode, type, named);
- else
- gcc_unreachable ();
+ struct score_arg_info info;
+ CUMULATIVE_ARGS *cum = get_cumulative_args (cum_args);
+ score_classify_arg (cum, mode, type, named, &info);
+ cum->num_gprs = info.reg_offset + info.reg_words;
+ if (info.stack_words > 0)
+ cum->stack_words = info.stack_offset + info.stack_words;
+ cum->arg_number++;
}
/* Implement TARGET_ARG_PARTIAL_BYTES macro. */
int
-score_arg_partial_bytes (cumulative_args_t cum,
+score_arg_partial_bytes (cumulative_args_t cum_args,
enum machine_mode mode, tree type, bool named)
{
- if (TARGET_SCORE7 || TARGET_SCORE7D)
- return score7_arg_partial_bytes (get_cumulative_args (cum), mode, type,
- named);
- else
- gcc_unreachable ();
+ struct score_arg_info info;
+ CUMULATIVE_ARGS *cum = get_cumulative_args (cum_args);
+ score_classify_arg (cum, mode, type, named, &info);
+ return info.stack_words > 0 ? info.reg_words * UNITS_PER_WORD : 0;
}
/* Implement TARGET_FUNCTION_ARG hook. */
static rtx
-score_function_arg (cumulative_args_t cum, enum machine_mode mode,
+score_function_arg (cumulative_args_t cum_args, enum machine_mode mode,
const_tree type, bool named)
{
- if (TARGET_SCORE7 || TARGET_SCORE7D)
- return score7_function_arg (get_cumulative_args (cum), mode, type, named);
+ struct score_arg_info info;
+ CUMULATIVE_ARGS *cum = get_cumulative_args (cum_args);
+
+ if (mode == VOIDmode || !named)
+ return 0;
+
+ score_classify_arg (cum, mode, type, named, &info);
+
+ if (info.reg_offset == ARG_REG_NUM)
+ return 0;
+
+ if (!info.stack_words)
+ return gen_rtx_REG (mode, ARG_REG_FIRST + info.reg_offset);
else
- gcc_unreachable ();
+ {
+ rtx ret = gen_rtx_PARALLEL (mode, rtvec_alloc (info.reg_words));
+ unsigned int i, part_offset = 0;
+ for (i = 0; i < info.reg_words; i++)
+ {
+ rtx reg;
+ reg = gen_rtx_REG (SImode, ARG_REG_FIRST + info.reg_offset + i);
+ XVECEXP (ret, 0, i) = gen_rtx_EXPR_LIST (SImode, reg,
+ GEN_INT (part_offset));
+ part_offset += UNITS_PER_WORD;
+ }
+ return ret;
+ }
}
/* Implement FUNCTION_VALUE and LIBCALL_VALUE. For normal calls,
VALTYPE is the return type and MODE is VOIDmode. For libcalls,
VALTYPE is null and MODE is the mode of the return value. */
rtx
-score_function_value (const_tree valtype, const_tree func ATTRIBUTE_UNUSED,
- enum machine_mode mode)
+score_function_value (const_tree valtype, const_tree func, enum machine_mode mode)
{
- if (TARGET_SCORE7 || TARGET_SCORE7D)
- return score7_function_value (valtype, func, mode);
- else
- gcc_unreachable ();
+ if (valtype)
+ {
+ int unsignedp;
+ mode = TYPE_MODE (valtype);
+ unsignedp = TYPE_UNSIGNED (valtype);
+ mode = promote_function_mode (valtype, mode, &unsignedp, func, 1);
+ }
+ return gen_rtx_REG (mode, RT_REGNUM);
}
/* Implement TARGET_ASM_TRAMPOLINE_TEMPLATE. */
+
static void
score_asm_trampoline_template (FILE *f)
{
- if (TARGET_SCORE7 || TARGET_SCORE7D)
- score7_asm_trampoline_template (f);
- else
- gcc_unreachable ();
+ fprintf (f, "\t.set r1\n");
+ fprintf (f, "\tmv r31, r3\n");
+ fprintf (f, "\tbl nextinsn\n");
+ fprintf (f, "nextinsn:\n");
+ fprintf (f, "\tlw r1, [r3, 6*4-8]\n");
+ fprintf (f, "\tlw r23, [r3, 6*4-4]\n");
+ fprintf (f, "\tmv r3, r31\n");
+ fprintf (f, "\tbr! r1\n");
+ fprintf (f, "\tnop!\n");
+ fprintf (f, "\t.set nor1\n");
}
/* Implement TARGET_TRAMPOLINE_INIT. */
static void
score_trampoline_init (rtx m_tramp, tree fndecl, rtx chain_value)
{
- if ( TARGET_SCORE7 || TARGET_SCORE7D)
- score7_trampoline_init (m_tramp, fndecl, chain_value);
- else
- gcc_unreachable ();
+#define CODE_SIZE (TRAMPOLINE_INSNS * UNITS_PER_WORD)
+
+ rtx fnaddr = XEXP (DECL_RTL (fndecl), 0);
+ rtx mem;
+
+ emit_block_move (m_tramp, assemble_trampoline_template (),
+ GEN_INT (TRAMPOLINE_SIZE), BLOCK_OP_NORMAL);
+
+ mem = adjust_address (m_tramp, SImode, CODE_SIZE);
+ emit_move_insn (mem, fnaddr);
+ mem = adjust_address (m_tramp, SImode, CODE_SIZE + GET_MODE_SIZE (SImode));
+ emit_move_insn (mem, chain_value);
+
+#undef CODE_SIZE
}
/* This function is used to implement REG_MODE_OK_FOR_BASE_P macro. */
int
score_regno_mode_ok_for_base_p (int regno, int strict)
{
- if (TARGET_SCORE7 || TARGET_SCORE7D)
- return score7_regno_mode_ok_for_base_p (regno, strict);
- else
- gcc_unreachable ();
+ if (regno >= FIRST_PSEUDO_REGISTER)
+ {
+ if (!strict)
+ return 1;
+ regno = reg_renumber[regno];
+ }
+ if (regno == ARG_POINTER_REGNUM
+ || regno == FRAME_POINTER_REGNUM)
+ return 1;
+ return GP_REG_P (regno);
}
-/* Implement TARGET_LEGITIMIZE_ADDRESS_P. */
+/* Implement TARGET_LEGITIMATE_ADDRESS_P macro. */
static bool
score_legitimate_address_p (enum machine_mode mode, rtx x, bool strict)
{
- if (TARGET_SCORE7 || TARGET_SCORE7D)
- return score7_legitimate_address_p (mode, x, strict);
- else
- gcc_unreachable ();
-}
+ struct score_address_info addr;
-/* This function is used to implement LEGITIMIZE_ADDRESS. If X can
- be legitimized in a way that the generic machinery might not expect,
- return the new address, else return X. */
-static rtx
-score_legitimize_address (rtx x, rtx oldx ATTRIBUTE_UNUSED,
- enum machine_mode mode ATTRIBUTE_UNUSED)
-{
- if (TARGET_SCORE7 || TARGET_SCORE7D)
- return score7_legitimize_address (x);
- else
- gcc_unreachable ();
+ return score_classify_address (&addr, mode, x, strict);
}
/* Return a number assessing the cost of moving a register in class
score_register_move_cost (enum machine_mode mode ATTRIBUTE_UNUSED,
enum reg_class from, enum reg_class to)
{
- if (TARGET_SCORE7 || TARGET_SCORE7D)
- return score7_register_move_cost (mode, from, to);
+ if (GR_REG_CLASS_P (from))
+ {
+ if (GR_REG_CLASS_P (to))
+ return 2;
+ else if (SP_REG_CLASS_P (to))
+ return 4;
+ else if (CP_REG_CLASS_P (to))
+ return 5;
+ else if (CE_REG_CLASS_P (to))
+ return 6;
+ }
+ if (GR_REG_CLASS_P (to))
+ {
+ if (GR_REG_CLASS_P (from))
+ return 2;
+ else if (SP_REG_CLASS_P (from))
+ return 4;
+ else if (CP_REG_CLASS_P (from))
+ return 5;
+ else if (CE_REG_CLASS_P (from))
+ return 6;
+ }
+ return 12;
+}
+
+/* Return the number of instructions needed to load a symbol of the
+ given type into a register. */
+static int
+score_symbol_insns (enum score_symbol_type type)
+{
+ switch (type)
+ {
+ case SYMBOL_GENERAL:
+ return 2;
+
+ case SYMBOL_SMALL_DATA:
+ return 1;
+ }
+
+ gcc_unreachable ();
+}
+
+/* Return the number of instructions needed to load or store a value
+ of mode MODE at X. Return 0 if X isn't valid for MODE. */
+static int
+score_address_insns (rtx x, enum machine_mode mode)
+{
+ struct score_address_info addr;
+ int factor;
+
+ if (mode == BLKmode)
+ factor = 1;
else
- gcc_unreachable ();
+ factor = (GET_MODE_SIZE (mode) + UNITS_PER_WORD - 1) / UNITS_PER_WORD;
+
+ if (score_classify_address (&addr, mode, x, false))
+ switch (addr.type)
+ {
+ case SCORE_ADD_REG:
+ case SCORE_ADD_CONST_INT:
+ return factor;
+
+ case SCORE_ADD_SYMBOLIC:
+ return factor * score_symbol_insns (addr.symbol_type);
+ }
+ return 0;
}
/* Implement TARGET_RTX_COSTS macro. */
bool
-score_rtx_costs (rtx x, int code, int outer_code, int *total,
- bool speed ATTRIBUTE_UNUSED)
+score_rtx_costs (rtx x, int code, int outer_code, int *total, bool speed ATTRIBUTE_UNUSED)
{
- if (TARGET_SCORE7 || TARGET_SCORE7D)
- return score7_rtx_costs (x, code, outer_code, total, speed);
- else
- gcc_unreachable ();
+ enum machine_mode mode = GET_MODE (x);
+
+ switch (code)
+ {
+ case CONST_INT:
+ if (outer_code == SET)
+ {
+ if (((INTVAL (x) & 0xffff) == 0)
+ || (INTVAL (x) >= -32768 && INTVAL (x) <= 32767))
+ *total = COSTS_N_INSNS (1);
+ else
+ *total = COSTS_N_INSNS (2);
+ }
+ else if (outer_code == PLUS || outer_code == MINUS)
+ {
+ if (INTVAL (x) >= -8192 && INTVAL (x) <= 8191)
+ *total = 0;
+ else if (((INTVAL (x) & 0xffff) == 0)
+ || (INTVAL (x) >= -32768 && INTVAL (x) <= 32767))
+ *total = 1;
+ else
+ *total = COSTS_N_INSNS (2);
+ }
+ else if (outer_code == AND || outer_code == IOR)
+ {
+ if (INTVAL (x) >= 0 && INTVAL (x) <= 16383)
+ *total = 0;
+ else if (((INTVAL (x) & 0xffff) == 0)
+ || (INTVAL (x) >= 0 && INTVAL (x) <= 65535))
+ *total = 1;
+ else
+ *total = COSTS_N_INSNS (2);
+ }
+ else
+ {
+ *total = 0;
+ }
+ return true;
+
+ case CONST:
+ case SYMBOL_REF:
+ case LABEL_REF:
+ case CONST_DOUBLE:
+ *total = COSTS_N_INSNS (2);
+ return true;
+
+ case MEM:
+ {
+ /* If the address is legitimate, return the number of
+ instructions it needs, otherwise use the default handling. */
+ int n = score_address_insns (XEXP (x, 0), GET_MODE (x));
+ if (n > 0)
+ {
+ *total = COSTS_N_INSNS (n + 1);
+ return true;
+ }
+ return false;
+ }
+
+ case FFS:
+ *total = COSTS_N_INSNS (6);
+ return true;
+
+ case NOT:
+ *total = COSTS_N_INSNS (1);
+ return true;
+
+ case AND:
+ case IOR:
+ case XOR:
+ if (mode == DImode)
+ {
+ *total = COSTS_N_INSNS (2);
+ return true;
+ }
+ return false;
+
+ case ASHIFT:
+ case ASHIFTRT:
+ case LSHIFTRT:
+ if (mode == DImode)
+ {
+ *total = COSTS_N_INSNS ((GET_CODE (XEXP (x, 1)) == CONST_INT)
+ ? 4 : 12);
+ return true;
+ }
+ return false;
+
+ case ABS:
+ *total = COSTS_N_INSNS (4);
+ return true;
+
+ case PLUS:
+ case MINUS:
+ if (mode == DImode)
+ {
+ *total = COSTS_N_INSNS (4);
+ return true;
+ }
+ *total = COSTS_N_INSNS (1);
+ return true;
+
+ case NEG:
+ if (mode == DImode)
+ {
+ *total = COSTS_N_INSNS (4);
+ return true;
+ }
+ return false;
+
+ case MULT:
+ *total = optimize_size ? COSTS_N_INSNS (2) : COSTS_N_INSNS (12);
+ return true;
+
+ case DIV:
+ case MOD:
+ case UDIV:
+ case UMOD:
+ *total = optimize_size ? COSTS_N_INSNS (2) : COSTS_N_INSNS (33);
+ return true;
+
+ case SIGN_EXTEND:
+ case ZERO_EXTEND:
+ switch (GET_MODE (XEXP (x, 0)))
+ {
+ case QImode:
+ case HImode:
+ if (GET_CODE (XEXP (x, 0)) == MEM)
+ {
+ *total = COSTS_N_INSNS (2);
+
+ if (!TARGET_LITTLE_ENDIAN &&
+ side_effects_p (XEXP (XEXP (x, 0), 0)))
+ *total = 100;
+ }
+ else
+ *total = COSTS_N_INSNS (1);
+ break;
+
+ default:
+ *total = COSTS_N_INSNS (1);
+ break;
+ }
+ return true;
+
+ default:
+ return false;
+ }
}
/* Implement TARGET_ADDRESS_COST macro. */
score_address_cost (rtx addr,
bool speed ATTRIBUTE_UNUSED)
{
- if (TARGET_SCORE7 || TARGET_SCORE7D)
- return score7_address_cost (addr);
- else
- gcc_unreachable ();
+ return score_address_insns (addr, SImode);
}
/* Implement ASM_OUTPUT_EXTERNAL macro. */
score_output_external (FILE *file ATTRIBUTE_UNUSED,
tree decl, const char *name)
{
- if (TARGET_SCORE7 || TARGET_SCORE7D)
- return score7_output_external (file, decl, name);
- else
- gcc_unreachable ();
+ register struct extern_list *p;
+
+ if (score_in_small_data_p (decl))
+ {
+ p = ggc_alloc_extern_list ();
+ p->next = extern_head;
+ p->name = name;
+ p->size = int_size_in_bytes (TREE_TYPE (decl));
+ extern_head = p;
+ }
+ return 0;
}
/* Implement RETURN_ADDR_RTX. Note, we do not support moving
rtx
score_return_addr (int count, rtx frame ATTRIBUTE_UNUSED)
{
- if (TARGET_SCORE7 || TARGET_SCORE7D)
- return score7_return_addr (count, frame);
- else
- gcc_unreachable ();
+ if (count != 0)
+ return const0_rtx;
+ return get_hard_reg_initial_val (Pmode, RA_REGNUM);
}
/* Implement PRINT_OPERAND macro. */
+/* Score-specific operand codes:
+ '[' print .set nor1 directive
+ ']' print .set r1 directive
+ 'U' print hi part of a CONST_INT rtx
+ 'E' print log2(v)
+ 'F' print log2(~v)
+ 'D' print SFmode const double
+ 'S' selectively print "!" if operand is 15bit instruction accessible
+ 'V' print "v!" if operand is 15bit instruction accessible, or "lfh!"
+ 'L' low part of DImode reg operand
+ 'H' high part of DImode reg operand
+ 'C' print part of opcode for a branch condition. */
void
score_print_operand (FILE *file, rtx op, int c)
{
- if (TARGET_SCORE7 || TARGET_SCORE7D)
- score7_print_operand (file, op, c);
+ enum rtx_code code = UNKNOWN;
+ if (!PRINT_OPERAND_PUNCT_VALID_P (c))
+ code = GET_CODE (op);
+
+ if (c == '[')
+ {
+ fprintf (file, ".set r1\n");
+ }
+ else if (c == ']')
+ {
+ fprintf (file, "\n\t.set nor1");
+ }
+ else if (c == 'U')
+ {
+ gcc_assert (code == CONST_INT);
+ fprintf (file, HOST_WIDE_INT_PRINT_HEX,
+ (INTVAL (op) >> 16) & 0xffff);
+ }
+ else if (c == 'D')
+ {
+ if (GET_CODE (op) == CONST_DOUBLE)
+ {
+ rtx temp = gen_lowpart (SImode, op);
+ gcc_assert (GET_MODE (op) == SFmode);
+ fprintf (file, HOST_WIDE_INT_PRINT_HEX, INTVAL (temp) & 0xffffffff);
+ }
+ else
+ output_addr_const (file, op);
+ }
+ else if (c == 'S')
+ {
+ gcc_assert (code == REG);
+ if (G16_REG_P (REGNO (op)))
+ fprintf (file, "!");
+ }
+ else if (c == 'V')
+ {
+ gcc_assert (code == REG);
+ fprintf (file, G16_REG_P (REGNO (op)) ? "v!" : "lfh!");
+ }
+ else if (c == 'C')
+ {
+ enum machine_mode mode = GET_MODE (XEXP (op, 0));
+
+ switch (code)
+ {
+ case EQ: fputs ("eq", file); break;
+ case NE: fputs ("ne", file); break;
+ case GT: fputs ("gt", file); break;
+ case GE: fputs (mode != CCmode ? "pl" : "ge", file); break;
+ case LT: fputs (mode != CCmode ? "mi" : "lt", file); break;
+ case LE: fputs ("le", file); break;
+ case GTU: fputs ("gtu", file); break;
+ case GEU: fputs ("cs", file); break;
+ case LTU: fputs ("cc", file); break;
+ case LEU: fputs ("leu", file); break;
+ default:
+ output_operand_lossage ("invalid operand for code: '%c'", code);
+ }
+ }
+ else if (c == 'E')
+ {
+ unsigned HOST_WIDE_INT i;
+ unsigned HOST_WIDE_INT pow2mask = 1;
+ unsigned HOST_WIDE_INT val;
+
+ val = INTVAL (op);
+ for (i = 0; i < 32; i++)
+ {
+ if (val == pow2mask)
+ break;
+ pow2mask <<= 1;
+ }
+ gcc_assert (i < 32);
+ fprintf (file, HOST_WIDE_INT_PRINT_HEX, i);
+ }
+ else if (c == 'F')
+ {
+ unsigned HOST_WIDE_INT i;
+ unsigned HOST_WIDE_INT pow2mask = 1;
+ unsigned HOST_WIDE_INT val;
+
+ val = ~INTVAL (op);
+ for (i = 0; i < 32; i++)
+ {
+ if (val == pow2mask)
+ break;
+ pow2mask <<= 1;
+ }
+ gcc_assert (i < 32);
+ fprintf (file, HOST_WIDE_INT_PRINT_HEX, i);
+ }
+ else if (code == REG)
+ {
+ int regnum = REGNO (op);
+ if ((c == 'H' && !WORDS_BIG_ENDIAN)
+ || (c == 'L' && WORDS_BIG_ENDIAN))
+ regnum ++;
+ fprintf (file, "%s", reg_names[regnum]);
+ }
else
- gcc_unreachable ();
+ {
+ switch (code)
+ {
+ case MEM:
+ score_print_operand_address (file, op);
+ break;
+ default:
+ output_addr_const (file, op);
+ }
+ }
}
/* Implement PRINT_OPERAND_ADDRESS macro. */
void
score_print_operand_address (FILE *file, rtx x)
{
- if (TARGET_SCORE7 || TARGET_SCORE7D)
- score7_print_operand_address (file, x);
- else
- gcc_unreachable ();
+ struct score_address_info addr;
+ enum rtx_code code = GET_CODE (x);
+ enum machine_mode mode = GET_MODE (x);
+
+ if (code == MEM)
+ x = XEXP (x, 0);
+
+ if (score_classify_address (&addr, mode, x, true))
+ {
+ switch (addr.type)
+ {
+ case SCORE_ADD_REG:
+ {
+ switch (addr.code)
+ {
+ case PRE_DEC:
+ fprintf (file, "[%s,-%ld]+", reg_names[REGNO (addr.reg)],
+ INTVAL (addr.offset));
+ break;
+ case POST_DEC:
+ fprintf (file, "[%s]+,-%ld", reg_names[REGNO (addr.reg)],
+ INTVAL (addr.offset));
+ break;
+ case PRE_INC:
+ fprintf (file, "[%s, %ld]+", reg_names[REGNO (addr.reg)],
+ INTVAL (addr.offset));
+ break;
+ case POST_INC:
+ fprintf (file, "[%s]+, %ld", reg_names[REGNO (addr.reg)],
+ INTVAL (addr.offset));
+ break;
+ default:
+ if (INTVAL(addr.offset) == 0)
+ fprintf(file, "[%s]", reg_names[REGNO (addr.reg)]);
+ else
+ fprintf(file, "[%s, %ld]", reg_names[REGNO (addr.reg)],
+ INTVAL(addr.offset));
+ break;
+ }
+ }
+ return;
+ case SCORE_ADD_CONST_INT:
+ case SCORE_ADD_SYMBOLIC:
+ output_addr_const (file, x);
+ return;
+ }
+ }
+ print_rtl (stderr, x);
+ gcc_unreachable ();
}
/* Implement SELECT_CC_MODE macro. */
enum machine_mode
score_select_cc_mode (enum rtx_code op, rtx x, rtx y)
{
- if (TARGET_SCORE7 || TARGET_SCORE7D)
- return score7_select_cc_mode (op, x, y);
+ if ((op == EQ || op == NE || op == LT || op == GE)
+ && y == const0_rtx
+ && GET_MODE (x) == SImode)
+ {
+ switch (GET_CODE (x))
+ {
+ case PLUS:
+ case MINUS:
+ case NEG:
+ case AND:
+ case IOR:
+ case XOR:
+ case NOT:
+ case ASHIFT:
+ case LSHIFTRT:
+ case ASHIFTRT:
+ return CC_NZmode;
+
+ case SIGN_EXTEND:
+ case ZERO_EXTEND:
+ case ROTATE:
+ case ROTATERT:
+ return (op == LT || op == GE) ? CC_Nmode : CCmode;
+
+ default:
+ return CCmode;
+ }
+ }
+
+ if ((op == EQ || op == NE)
+ && (GET_CODE (y) == NEG)
+ && register_operand (XEXP (y, 0), SImode)
+ && register_operand (x, SImode))
+ {
+ return CC_NZmode;
+ }
+
+ return CCmode;
+}
+
+/* Generate the prologue instructions for entry into a S+core function. */
+void
+score_prologue (void)
+{
+#define EMIT_PL(_rtx) RTX_FRAME_RELATED_P (_rtx) = 1
+
+ struct score_frame_info *f = score_compute_frame_size (get_frame_size ());
+ HOST_WIDE_INT size;
+ int regno;
+
+ size = f->total_size - f->gp_reg_size;
+
+ if (flag_pic)
+ emit_insn (gen_cpload_score7 ());
+
+ for (regno = (int) GP_REG_LAST; regno >= (int) GP_REG_FIRST; regno--)
+ {
+ if (BITSET_P (f->mask, regno - GP_REG_FIRST))
+ {
+ rtx mem = gen_rtx_MEM (SImode,
+ gen_rtx_PRE_DEC (SImode, stack_pointer_rtx));
+ rtx reg = gen_rtx_REG (SImode, regno);
+ if (!crtl->calls_eh_return)
+ MEM_READONLY_P (mem) = 1;
+ EMIT_PL (emit_insn (gen_pushsi_score7 (mem, reg)));
+ }
+ }
+
+ if (size > 0)
+ {
+ rtx insn;
+
+ if (size >= -32768 && size <= 32767)
+ EMIT_PL (emit_insn (gen_add3_insn (stack_pointer_rtx,
+ stack_pointer_rtx,
+ GEN_INT (-size))));
+ else
+ {
+ EMIT_PL (emit_move_insn (gen_rtx_REG (Pmode, SCORE_PROLOGUE_TEMP_REGNUM),
+ GEN_INT (size)));
+ EMIT_PL (emit_insn
+ (gen_sub3_insn (stack_pointer_rtx,
+ stack_pointer_rtx,
+ gen_rtx_REG (Pmode,
+ SCORE_PROLOGUE_TEMP_REGNUM))));
+ }
+ insn = get_last_insn ();
+ REG_NOTES (insn) =
+ alloc_EXPR_LIST (REG_FRAME_RELATED_EXPR,
+ gen_rtx_SET (VOIDmode, stack_pointer_rtx,
+ plus_constant (stack_pointer_rtx,
+ -size)),
+ REG_NOTES (insn));
+ }
+
+ if (frame_pointer_needed)
+ EMIT_PL (emit_move_insn (hard_frame_pointer_rtx, stack_pointer_rtx));
+
+ if (flag_pic && f->cprestore_size)
+ {
+ if (frame_pointer_needed)
+ emit_insn (gen_cprestore_use_fp_score7 (GEN_INT (size - f->cprestore_size)));
+ else
+ emit_insn (gen_cprestore_use_sp_score7 (GEN_INT (size - f->cprestore_size)));
+ }
+
+#undef EMIT_PL
+}
+
+/* Generate the epilogue instructions in a S+core function. */
+void
+score_epilogue (int sibcall_p)
+{
+ struct score_frame_info *f = score_compute_frame_size (get_frame_size ());
+ HOST_WIDE_INT size;
+ int regno;
+ rtx base;
+
+ size = f->total_size - f->gp_reg_size;
+
+ if (!frame_pointer_needed)
+ base = stack_pointer_rtx;
else
- gcc_unreachable ();
+ base = hard_frame_pointer_rtx;
+
+ if (size)
+ {
+ if (size >= -32768 && size <= 32767)
+ emit_insn (gen_add3_insn (base, base, GEN_INT (size)));
+ else
+ {
+ emit_move_insn (gen_rtx_REG (Pmode, SCORE_EPILOGUE_TEMP_REGNUM),
+ GEN_INT (size));
+ emit_insn (gen_add3_insn (base, base,
+ gen_rtx_REG (Pmode,
+ SCORE_EPILOGUE_TEMP_REGNUM)));
+ }
+ }
+
+ if (base != stack_pointer_rtx)
+ emit_move_insn (stack_pointer_rtx, base);
+
+ if (crtl->calls_eh_return)
+ emit_insn (gen_add3_insn (stack_pointer_rtx,
+ stack_pointer_rtx,
+ EH_RETURN_STACKADJ_RTX));
+
+ for (regno = (int) GP_REG_FIRST; regno <= (int) GP_REG_LAST; regno++)
+ {
+ if (BITSET_P (f->mask, regno - GP_REG_FIRST))
+ {
+ rtx mem = gen_rtx_MEM (SImode,
+ gen_rtx_POST_INC (SImode, stack_pointer_rtx));
+ rtx reg = gen_rtx_REG (SImode, regno);
+
+ if (!crtl->calls_eh_return)
+ MEM_READONLY_P (mem) = 1;
+
+ emit_insn (gen_popsi_score7 (reg, mem));
+ }
+ }
+
+ if (!sibcall_p)
+ emit_jump_insn (gen_return_internal_score7 (gen_rtx_REG (Pmode, RA_REGNUM)));
}
/* Return true if X is a symbolic constant that can be calculated in
int
score_symbolic_constant_p (rtx x, enum score_symbol_type *symbol_type)
{
- if (TARGET_SCORE7 || TARGET_SCORE7D)
- return score7_symbolic_constant_p (x, symbol_type);
- else
- gcc_unreachable ();
-}
+ HOST_WIDE_INT offset;
-/* Generate the prologue instructions for entry into a S+core function. */
-void
-score_prologue (void)
-{
- if (TARGET_SCORE7 || TARGET_SCORE7D)
- score7_prologue ();
+ score_split_const (x, &x, &offset);
+ if (GET_CODE (x) == SYMBOL_REF || GET_CODE (x) == LABEL_REF)
+ *symbol_type = score_classify_symbol (x);
else
- gcc_unreachable ();
+ return 0;
+
+ if (offset == 0)
+ return 1;
+
+ /* if offset > 15bit, must reload */
+ if (!IMM_IN_RANGE (offset, 15, 1))
+ return 0;
+
+ switch (*symbol_type)
+ {
+ case SYMBOL_GENERAL:
+ return 1;
+ case SYMBOL_SMALL_DATA:
+ return score_offset_within_object_p (x, offset);
+ }
+ gcc_unreachable ();
}
-/* Generate the epilogue instructions in a S+core function. */
void
-score_epilogue (int sibcall_p)
+score_movsicc (rtx *ops)
{
- if (TARGET_SCORE7 || TARGET_SCORE7D)
- score7_epilogue (sibcall_p);
- else
- gcc_unreachable ();
+ enum machine_mode mode;
+
+ mode = score_select_cc_mode (GET_CODE (ops[1]), ops[2], ops[3]);
+ emit_insn (gen_rtx_SET (VOIDmode, gen_rtx_REG (mode, CC_REGNUM),
+ gen_rtx_COMPARE (mode, XEXP (ops[1], 0),
+ XEXP (ops[1], 1))));
}
/* Call and sibcall pattern all need call this function. */
void
score_call (rtx *ops, bool sib)
{
- if (TARGET_SCORE7 || TARGET_SCORE7D)
- score7_call (ops, sib);
+ rtx addr = XEXP (ops[0], 0);
+ if (!call_insn_operand (addr, VOIDmode))
+ {
+ rtx oaddr = addr;
+ addr = gen_reg_rtx (Pmode);
+ gen_move_insn (addr, oaddr);
+ }
+
+ if (sib)
+ emit_call_insn (gen_sibcall_internal_score7 (addr, ops[1]));
else
- gcc_unreachable ();
+ emit_call_insn (gen_call_internal_score7 (addr, ops[1]));
}
/* Call value and sibcall value pattern all need call this function. */
void
score_call_value (rtx *ops, bool sib)
{
- if (TARGET_SCORE7 || TARGET_SCORE7D)
- score7_call_value (ops, sib);
- else
- gcc_unreachable ();
-}
-
-void
-score_movsicc (rtx *ops)
-{
- if (TARGET_SCORE7 || TARGET_SCORE7D)
- score7_movsicc (ops);
+ rtx result = ops[0];
+ rtx addr = XEXP (ops[1], 0);
+ rtx arg = ops[2];
+
+ if (!call_insn_operand (addr, VOIDmode))
+ {
+ rtx oaddr = addr;
+ addr = gen_reg_rtx (Pmode);
+ gen_move_insn (addr, oaddr);
+ }
+
+ if (sib)
+ emit_call_insn (gen_sibcall_value_internal_score7 (result, addr, arg));
else
- gcc_unreachable ();
+ emit_call_insn (gen_call_value_internal_score7 (result, addr, arg));
}
/* Machine Split */
void
score_movdi (rtx *ops)
{
- if (TARGET_SCORE7 || TARGET_SCORE7D)
- score7_movdi (ops);
+ rtx dst = ops[0];
+ rtx src = ops[1];
+ rtx dst0 = score_subw (dst, 0);
+ rtx dst1 = score_subw (dst, 1);
+ rtx src0 = score_subw (src, 0);
+ rtx src1 = score_subw (src, 1);
+
+ if (GET_CODE (dst0) == REG && reg_overlap_mentioned_p (dst0, src))
+ {
+ emit_move_insn (dst1, src1);
+ emit_move_insn (dst0, src0);
+ }
else
- gcc_unreachable ();
+ {
+ emit_move_insn (dst0, src0);
+ emit_move_insn (dst1, src1);
+ }
}
void
score_zero_extract_andi (rtx *ops)
{
- if (TARGET_SCORE7 || TARGET_SCORE7D)
- score7_zero_extract_andi (ops);
+ if (INTVAL (ops[1]) == 1 && const_uimm5 (ops[2], SImode))
+ emit_insn (gen_zero_extract_bittst_score7 (ops[0], ops[2]));
else
- gcc_unreachable ();
+ {
+ unsigned HOST_WIDE_INT mask;
+ mask = (0xffffffffU & ((1U << INTVAL (ops[1])) - 1U));
+ mask = mask << INTVAL (ops[2]);
+ emit_insn (gen_andsi3_cmp_score7 (ops[3], ops[0],
+ gen_int_mode (mask, SImode)));
+ }
}
-/* Output asm insn for move. */
-const char *
-score_move (rtx *ops)
+/* Check addr could be present as PRE/POST mode. */
+static bool
+score_pindex_mem (rtx addr)
{
- if (TARGET_SCORE7 || TARGET_SCORE7D)
- return score7_move (ops);
- else
- gcc_unreachable ();
+ if (GET_CODE (addr) == MEM)
+ {
+ switch (GET_CODE (XEXP (addr, 0)))
+ {
+ case PRE_DEC:
+ case POST_DEC:
+ case PRE_INC:
+ case POST_INC:
+ return true;
+ default:
+ break;
+ }
+ }
+ return false;
+}
+
+/* Output asm code for ld/sw insn. */
+static int
+score_pr_addr_post (rtx *ops, int idata, int iaddr, char *ip, enum score_mem_unit unit)
+{
+ struct score_address_info ai;
+
+ gcc_assert (GET_CODE (ops[idata]) == REG);
+ gcc_assert (score_classify_address (&ai, SImode, XEXP (ops[iaddr], 0), true));
+
+ if (!score_pindex_mem (ops[iaddr])
+ && ai.type == SCORE_ADD_REG
+ && GET_CODE (ai.offset) == CONST_INT
+ && G16_REG_P (REGNO (ops[idata]))
+ && G16_REG_P (REGNO (ai.reg)))
+ {
+ if (INTVAL (ai.offset) == 0)
+ {
+ ops[iaddr] = ai.reg;
+ return snprintf (ip, INS_BUF_SZ,
+ "!\t%%%d, [%%%d]", idata, iaddr);
+ }
+ if (REGNO (ai.reg) == HARD_FRAME_POINTER_REGNUM)
+ {
+ HOST_WIDE_INT offset = INTVAL (ai.offset);
+ if (SCORE_ALIGN_UNIT (offset, unit)
+ && (((offset >> unit) >= 0) && ((offset >> unit) <= 31)))
+ {
+ ops[iaddr] = ai.offset;
+ return snprintf (ip, INS_BUF_SZ,
+ "p!\t%%%d, %%c%d", idata, iaddr);
+ }
+ }
+ }
+ return snprintf (ip, INS_BUF_SZ, "\t%%%d, %%a%d", idata, iaddr);
}
/* Output asm insn for load. */
const char *
score_linsn (rtx *ops, enum score_mem_unit unit, bool sign)
{
- if (TARGET_SCORE7 || TARGET_SCORE7D)
- return score7_linsn (ops, unit, sign);
+ const char *pre_ins[] =
+ {"lbu", "lhu", "lw", "??", "lb", "lh", "lw", "??"};
+ char *ip;
+
+ strcpy (score_ins, pre_ins[(sign ? 4 : 0) + unit]);
+ ip = score_ins + strlen (score_ins);
+
+ if ((!sign && unit != SCORE_HWORD)
+ || (sign && unit != SCORE_BYTE))
+ score_pr_addr_post (ops, 0, 1, ip, unit);
else
- gcc_unreachable ();
+ snprintf (ip, INS_BUF_SZ, "\t%%0, %%a1");
+
+ return score_ins;
}
/* Output asm insn for store. */
const char *
score_sinsn (rtx *ops, enum score_mem_unit unit)
{
- if (TARGET_SCORE7 || TARGET_SCORE7D)
- return score7_sinsn (ops, unit);
- else
- gcc_unreachable ();
+ const char *pre_ins[] = {"sb", "sh", "sw"};
+ char *ip;
+
+ strcpy (score_ins, pre_ins[unit]);
+ ip = score_ins + strlen (score_ins);
+ score_pr_addr_post (ops, 1, 0, ip, unit);
+ return score_ins;
}
/* Output asm insn for load immediate. */
const char *
score_limm (rtx *ops)
{
- if (TARGET_SCORE7 || TARGET_SCORE7D)
- return score7_limm (ops);
+ HOST_WIDE_INT v;
+
+ gcc_assert (GET_CODE (ops[0]) == REG);
+ gcc_assert (GET_CODE (ops[1]) == CONST_INT);
+
+ v = INTVAL (ops[1]);
+ if (G16_REG_P (REGNO (ops[0])) && IMM_IN_RANGE (v, 8, 0))
+ return "ldiu!\t%0, %c1";
+ else if (IMM_IN_RANGE (v, 16, 1))
+ return "ldi\t%0, %c1";
+ else if ((v & 0xffff) == 0)
+ return "ldis\t%0, %U1";
else
- gcc_unreachable ();
+ return "li\t%0, %c1";
}
+/* Output asm insn for move. */
+const char *
+score_move (rtx *ops)
+{
+ gcc_assert (GET_CODE (ops[0]) == REG);
+ gcc_assert (GET_CODE (ops[1]) == REG);
+
+ if (G16_REG_P (REGNO (ops[0])))
+ {
+ if (G16_REG_P (REGNO (ops[1])))
+ return "mv!\t%0, %1";
+ else
+ return "mlfh!\t%0, %1";
+ }
+ else if (G16_REG_P (REGNO (ops[1])))
+ return "mhfl!\t%0, %1";
+ else
+ return "mv\t%0, %1";
+}
/* Generate add insn. */
const char *
score_select_add_imm (rtx *ops, bool set_cc)
{
- if (TARGET_SCORE7 || TARGET_SCORE7D)
- return score7_select_add_imm (ops, set_cc);
+ HOST_WIDE_INT v = INTVAL (ops[2]);
+
+ gcc_assert (GET_CODE (ops[2]) == CONST_INT);
+ gcc_assert (REGNO (ops[0]) == REGNO (ops[1]));
+
+ if (set_cc && G16_REG_P (REGNO (ops[0])))
+ {
+ if (v > 0 && IMM_IS_POW_OF_2 ((unsigned HOST_WIDE_INT) v, 0, 15))
+ {
+ ops[2] = GEN_INT (ffs (v) - 1);
+ return "addei!\t%0, %c2";
+ }
+
+ if (v < 0 && IMM_IS_POW_OF_2 ((unsigned HOST_WIDE_INT) (-v), 0, 15))
+ {
+ ops[2] = GEN_INT (ffs (-v) - 1);
+ return "subei!\t%0, %c2";
+ }
+ }
+
+ if (set_cc)
+ return "addi.c\t%0, %c2";
else
- gcc_unreachable ();
+ return "addi\t%0, %c2";
}
/* Output arith insn. */
const char *
score_select (rtx *ops, const char *inst_pre,
- bool commu, const char *letter, bool set_cc)
+ bool commu, const char *letter, bool set_cc)
{
- if (TARGET_SCORE7 || TARGET_SCORE7D)
- return score7_select (ops, inst_pre, commu, letter, set_cc);
+ gcc_assert (GET_CODE (ops[0]) == REG);
+ gcc_assert (GET_CODE (ops[1]) == REG);
+
+ if (set_cc && G16_REG_P (REGNO (ops[0]))
+ && (GET_CODE (ops[2]) == REG ? G16_REG_P (REGNO (ops[2])) : 1)
+ && REGNO (ops[0]) == REGNO (ops[1]))
+ {
+ snprintf (score_ins, INS_BUF_SZ, "%s!\t%%0, %%%s2", inst_pre, letter);
+ return score_ins;
+ }
+
+ if (commu && set_cc && G16_REG_P (REGNO (ops[0]))
+ && G16_REG_P (REGNO (ops[1]))
+ && REGNO (ops[0]) == REGNO (ops[2]))
+ {
+ gcc_assert (GET_CODE (ops[2]) == REG);
+ snprintf (score_ins, INS_BUF_SZ, "%s!\t%%0, %%%s1", inst_pre, letter);
+ return score_ins;
+ }
+
+ if (set_cc)
+ snprintf (score_ins, INS_BUF_SZ, "%s.c\t%%0, %%1, %%%s2", inst_pre, letter);
else
- gcc_unreachable ();
+ snprintf (score_ins, INS_BUF_SZ, "%s\t%%0, %%1, %%%s2", inst_pre, letter);
+ return score_ins;
+}
+
+/* Return nonzero when an argument must be passed by reference. */
+static bool
+score_pass_by_reference (cumulative_args_t cum ATTRIBUTE_UNUSED,
+ enum machine_mode mode, const_tree type,
+ bool named ATTRIBUTE_UNUSED)
+{
+ /* If we have a variable-sized parameter, we have no choice. */
+ return targetm.calls.must_pass_in_stack (mode, type);
+}
+
+/* Implement TARGET_FUNCTION_OK_FOR_SIBCALL. */
+static bool
+score_function_ok_for_sibcall (ATTRIBUTE_UNUSED tree decl,
+ ATTRIBUTE_UNUSED tree exp)
+{
+ return true;
+}
+
+/* Implement TARGET_SCHED_ISSUE_RATE. */
+static int
+score_issue_rate (void)
+{
+ return 1;
+}
+
+/* We can always eliminate to the hard frame pointer. We can eliminate
+ to the stack pointer unless a frame pointer is needed. */
+
+static bool
+score_can_eliminate (const int from ATTRIBUTE_UNUSED, const int to)
+{
+ return (to == HARD_FRAME_POINTER_REGNUM
+ || (to == STACK_POINTER_REGNUM && !frame_pointer_needed));
+}
+
+/* Argument support functions. */
+
+/* Initialize CUMULATIVE_ARGS for a function. */
+void
+score_init_cumulative_args (CUMULATIVE_ARGS *cum,
+ tree fntype ATTRIBUTE_UNUSED,
+ rtx libname ATTRIBUTE_UNUSED)
+{
+ memset (cum, 0, sizeof (CUMULATIVE_ARGS));
}
static void
+++ /dev/null
-/* score7.c for Sunplus S+CORE processor
- Copyright (C) 2005, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
- Contributed by Sunnorth
-
- 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/>. */
-
-#include "config.h"
-#include "system.h"
-#include "coretypes.h"
-#include "tm.h"
-#include "rtl.h"
-#include "regs.h"
-#include "hard-reg-set.h"
-#include "insn-config.h"
-#include "conditions.h"
-#include "insn-attr.h"
-#include "recog.h"
-#include "diagnostic-core.h"
-#include "output.h"
-#include "tree.h"
-#include "function.h"
-#include "expr.h"
-#include "optabs.h"
-#include "flags.h"
-#include "reload.h"
-#include "tm_p.h"
-#include "ggc.h"
-#include "gstab.h"
-#include "hashtab.h"
-#include "debug.h"
-#include "target.h"
-#include "target-def.h"
-#include "integrate.h"
-#include "langhooks.h"
-#include "cfglayout.h"
-#include "score7.h"
-#include "df.h"
-
-#define BITSET_P(VALUE, BIT) (((VALUE) & (1L << (BIT))) != 0)
-#define INS_BUF_SZ 128
-
-extern enum reg_class score_char_to_class[256];
-
-static int score7_sdata_max;
-static char score7_ins[INS_BUF_SZ + 8];
-
-/* Return true if SYMBOL is a SYMBOL_REF and OFFSET + SYMBOL points
- to the same object as SYMBOL. */
-static int
-score7_offset_within_object_p (rtx symbol, HOST_WIDE_INT offset)
-{
- if (GET_CODE (symbol) != SYMBOL_REF)
- return 0;
-
- if (CONSTANT_POOL_ADDRESS_P (symbol)
- && offset >= 0
- && offset < (int)GET_MODE_SIZE (get_pool_mode (symbol)))
- return 1;
-
- if (SYMBOL_REF_DECL (symbol) != 0
- && offset >= 0
- && offset < int_size_in_bytes (TREE_TYPE (SYMBOL_REF_DECL (symbol))))
- return 1;
-
- return 0;
-}
-
-/* Split X into a base and a constant offset, storing them in *BASE
- and *OFFSET respectively. */
-static void
-score7_split_const (rtx x, rtx *base, HOST_WIDE_INT *offset)
-{
- *offset = 0;
-
- if (GET_CODE (x) == CONST)
- x = XEXP (x, 0);
-
- if (GET_CODE (x) == PLUS && GET_CODE (XEXP (x, 1)) == CONST_INT)
- {
- *offset += INTVAL (XEXP (x, 1));
- x = XEXP (x, 0);
- }
-
- *base = x;
-}
-
-/* Classify symbol X, which must be a SYMBOL_REF or a LABEL_REF. */
-static enum score_symbol_type
-score7_classify_symbol (rtx x)
-{
- if (GET_CODE (x) == LABEL_REF)
- return SYMBOL_GENERAL;
-
- gcc_assert (GET_CODE (x) == SYMBOL_REF);
-
- if (CONSTANT_POOL_ADDRESS_P (x))
- {
- if (GET_MODE_SIZE (get_pool_mode (x)) <= SCORE7_SDATA_MAX)
- return SYMBOL_SMALL_DATA;
- return SYMBOL_GENERAL;
- }
- if (SYMBOL_REF_SMALL_P (x))
- return SYMBOL_SMALL_DATA;
- return SYMBOL_GENERAL;
-}
-
-/* Return true if the current function must save REGNO. */
-static int
-score7_save_reg_p (unsigned int regno)
-{
- /* Check call-saved registers. */
- if (df_regs_ever_live_p (regno) && !call_used_regs[regno])
- return 1;
-
- /* We need to save the old frame pointer before setting up a new one. */
- if (regno == HARD_FRAME_POINTER_REGNUM && frame_pointer_needed)
- return 1;
-
- /* We need to save the incoming return address if it is ever clobbered
- within the function. */
- if (regno == RA_REGNUM && df_regs_ever_live_p (regno))
- return 1;
-
- return 0;
-}
-
-/* Return one word of double-word value OP, taking into account the fixed
- endianness of certain registers. HIGH_P is true to select the high part,
- false to select the low part. */
-static rtx
-score7_subw (rtx op, int high_p)
-{
- unsigned int byte;
- enum machine_mode mode = GET_MODE (op);
-
- if (mode == VOIDmode)
- mode = DImode;
-
- byte = (TARGET_LITTLE_ENDIAN ? high_p : !high_p) ? UNITS_PER_WORD : 0;
-
- if (GET_CODE (op) == REG && REGNO (op) == HI_REGNUM)
- return gen_rtx_REG (SImode, high_p ? HI_REGNUM : LO_REGNUM);
-
- if (GET_CODE (op) == MEM)
- return adjust_address (op, SImode, byte);
-
- return simplify_gen_subreg (SImode, op, mode, byte);
-}
-
-static struct score7_frame_info *
-score7_cached_frame (void)
-{
- static struct score7_frame_info _frame_info;
- return &_frame_info;
-}
-
-/* Return the bytes needed to compute the frame pointer from the current
- stack pointer. SIZE is the size (in bytes) of the local variables. */
-static struct score7_frame_info *
-score7_compute_frame_size (HOST_WIDE_INT size)
-{
- unsigned int regno;
- struct score7_frame_info *f = score7_cached_frame ();
-
- memset (f, 0, sizeof (struct score7_frame_info));
- f->gp_reg_size = 0;
- f->mask = 0;
- f->var_size = SCORE7_STACK_ALIGN (size);
- f->args_size = crtl->outgoing_args_size;
- f->cprestore_size = flag_pic ? UNITS_PER_WORD : 0;
- if (f->var_size == 0 && current_function_is_leaf)
- f->args_size = f->cprestore_size = 0;
-
- if (f->args_size == 0 && cfun->calls_alloca)
- f->args_size = UNITS_PER_WORD;
-
- f->total_size = f->var_size + f->args_size + f->cprestore_size;
- for (regno = GP_REG_FIRST; regno <= GP_REG_LAST; regno++)
- {
- if (score7_save_reg_p (regno))
- {
- f->gp_reg_size += GET_MODE_SIZE (SImode);
- f->mask |= 1 << (regno - GP_REG_FIRST);
- }
- }
-
- if (crtl->calls_eh_return)
- {
- unsigned int i;
- for (i = 0;; ++i)
- {
- regno = EH_RETURN_DATA_REGNO (i);
- if (regno == INVALID_REGNUM)
- break;
- f->gp_reg_size += GET_MODE_SIZE (SImode);
- f->mask |= 1 << (regno - GP_REG_FIRST);
- }
- }
-
- f->total_size += f->gp_reg_size;
- f->num_gp = f->gp_reg_size / UNITS_PER_WORD;
-
- if (f->mask)
- {
- HOST_WIDE_INT offset;
- offset = (f->args_size + f->cprestore_size + f->var_size
- + f->gp_reg_size - GET_MODE_SIZE (SImode));
- f->gp_sp_offset = offset;
- }
- else
- f->gp_sp_offset = 0;
-
- return f;
-}
-
-/* Return true if X is a valid base register for the given mode.
- Allow only hard registers if STRICT. */
-static int
-score7_valid_base_register_p (rtx x, int strict)
-{
- if (!strict && GET_CODE (x) == SUBREG)
- x = SUBREG_REG (x);
-
- return (GET_CODE (x) == REG
- && score7_regno_mode_ok_for_base_p (REGNO (x), strict));
-}
-
-/* Return true if X is a valid address for machine mode MODE. If it is,
- fill in INFO appropriately. STRICT is true if we should only accept
- hard base registers. */
-static int
-score7_classify_address (struct score7_address_info *info,
- enum machine_mode mode, rtx x, int strict)
-{
- info->code = GET_CODE (x);
-
- switch (info->code)
- {
- case REG:
- case SUBREG:
- info->type = SCORE7_ADD_REG;
- info->reg = x;
- info->offset = const0_rtx;
- return score7_valid_base_register_p (info->reg, strict);
- case PLUS:
- info->type = SCORE7_ADD_REG;
- info->reg = XEXP (x, 0);
- info->offset = XEXP (x, 1);
- return (score7_valid_base_register_p (info->reg, strict)
- && GET_CODE (info->offset) == CONST_INT
- && IMM_IN_RANGE (INTVAL (info->offset), 15, 1));
- case PRE_DEC:
- case POST_DEC:
- case PRE_INC:
- case POST_INC:
- if (GET_MODE_SIZE (mode) > GET_MODE_SIZE (SImode))
- return false;
- info->type = SCORE7_ADD_REG;
- info->reg = XEXP (x, 0);
- info->offset = GEN_INT (GET_MODE_SIZE (mode));
- return score7_valid_base_register_p (info->reg, strict);
- case CONST_INT:
- info->type = SCORE7_ADD_CONST_INT;
- return IMM_IN_RANGE (INTVAL (x), 15, 1);
- case CONST:
- case LABEL_REF:
- case SYMBOL_REF:
- info->type = SCORE7_ADD_SYMBOLIC;
- return (score7_symbolic_constant_p (x, &info->symbol_type)
- && (info->symbol_type == SYMBOL_GENERAL
- || info->symbol_type == SYMBOL_SMALL_DATA));
- default:
- return 0;
- }
-}
-
-bool
-score7_return_in_memory (const_tree type, const_tree fndecl ATTRIBUTE_UNUSED)
-{
- return ((TYPE_MODE (type) == BLKmode)
- || (int_size_in_bytes (type) > 2 * UNITS_PER_WORD)
- || (int_size_in_bytes (type) == -1));
-}
-
-/* Return a legitimate address for REG + OFFSET. */
-static rtx
-score7_add_offset (rtx reg, HOST_WIDE_INT offset)
-{
- if (!IMM_IN_RANGE (offset, 15, 1))
- {
- reg = expand_simple_binop (GET_MODE (reg), PLUS,
- gen_int_mode (offset & 0xffffc000,
- GET_MODE (reg)),
- reg, NULL, 0, OPTAB_WIDEN);
- offset &= 0x3fff;
- }
-
- return plus_constant (reg, offset);
-}
-
-/* Implement TARGET_ASM_OUTPUT_MI_THUNK. Generate rtl rather than asm text
- in order to avoid duplicating too much logic from elsewhere. */
-void
-score7_output_mi_thunk (FILE *file, tree thunk_fndecl ATTRIBUTE_UNUSED,
- HOST_WIDE_INT delta, HOST_WIDE_INT vcall_offset,
- tree function)
-{
- rtx this_rtx, temp1, insn, fnaddr;
-
- /* Pretend to be a post-reload pass while generating rtl. */
- reload_completed = 1;
-
- /* Mark the end of the (empty) prologue. */
- emit_note (NOTE_INSN_PROLOGUE_END);
-
- /* We need two temporary registers in some cases. */
- temp1 = gen_rtx_REG (Pmode, 8);
-
- /* Find out which register contains the "this" pointer. */
- if (aggregate_value_p (TREE_TYPE (TREE_TYPE (function)), function))
- this_rtx = gen_rtx_REG (Pmode, ARG_REG_FIRST + 1);
- else
- this_rtx = gen_rtx_REG (Pmode, ARG_REG_FIRST);
-
- /* Add DELTA to THIS_RTX. */
- if (delta != 0)
- {
- rtx offset = GEN_INT (delta);
- if (!(delta >= -32768 && delta <= 32767))
- {
- emit_move_insn (temp1, offset);
- offset = temp1;
- }
- emit_insn (gen_add3_insn (this_rtx, this_rtx, offset));
- }
-
- /* If needed, add *(*THIS_RTX + VCALL_OFFSET) to THIS_RTX. */
- if (vcall_offset != 0)
- {
- rtx addr;
-
- /* Set TEMP1 to *THIS_RTX. */
- emit_move_insn (temp1, gen_rtx_MEM (Pmode, this_rtx));
-
- /* Set ADDR to a legitimate address for *THIS_RTX + VCALL_OFFSET. */
- addr = score7_add_offset (temp1, vcall_offset);
-
- /* Load the offset and add it to THIS_RTX. */
- emit_move_insn (temp1, gen_rtx_MEM (Pmode, addr));
- emit_insn (gen_add3_insn (this_rtx, this_rtx, temp1));
- }
-
- /* Jump to the target function. */
- fnaddr = XEXP (DECL_RTL (function), 0);
- insn = emit_call_insn (gen_sibcall_internal_score7 (fnaddr, const0_rtx));
- SIBLING_CALL_P (insn) = 1;
-
- /* Run just enough of rest_of_compilation. This sequence was
- "borrowed" from alpha.c. */
- insn = get_insns ();
- insn_locators_alloc ();
- split_all_insns_noflow ();
- shorten_branches (insn);
- final_start_function (insn, file, 1);
- final (insn, file, 1);
- final_end_function ();
-
- /* Clean up the vars set above. Note that final_end_function resets
- the global pointer for us. */
- reload_completed = 0;
-}
-
-/* Copy VALUE to a register and return that register. If new psuedos
- are allowed, copy it into a new register, otherwise use DEST. */
-static rtx
-score7_force_temporary (rtx dest, rtx value)
-{
- if (can_create_pseudo_p ())
- return force_reg (Pmode, value);
- else
- {
- emit_move_insn (copy_rtx (dest), value);
- return dest;
- }
-}
-
-/* Return a LO_SUM expression for ADDR. TEMP is as for score_force_temporary
- and is used to load the high part into a register. */
-static rtx
-score7_split_symbol (rtx temp, rtx addr)
-{
- rtx high = score7_force_temporary (temp,
- gen_rtx_HIGH (Pmode, copy_rtx (addr)));
- return gen_rtx_LO_SUM (Pmode, high, addr);
-}
-
-/* This function is used to implement LEGITIMIZE_ADDRESS. If X can
- be legitimized in a way that the generic machinery might not expect,
- return the new address. */
-rtx
-score7_legitimize_address (rtx x)
-{
- enum score_symbol_type symbol_type;
-
- if (score7_symbolic_constant_p (x, &symbol_type)
- && symbol_type == SYMBOL_GENERAL)
- return score7_split_symbol (0, x);
-
- if (GET_CODE (x) == PLUS
- && GET_CODE (XEXP (x, 1)) == CONST_INT)
- {
- rtx reg = XEXP (x, 0);
- if (!score7_valid_base_register_p (reg, 0))
- reg = copy_to_mode_reg (Pmode, reg);
- return score7_add_offset (reg, INTVAL (XEXP (x, 1)));
- }
-
- return x;
-}
-
-/* Fill INFO with information about a single argument. CUM is the
- cumulative state for earlier arguments. MODE is the mode of this
- argument and TYPE is its type (if known). NAMED is true if this
- is a named (fixed) argument rather than a variable one. */
-static void
-score7_classify_arg (const CUMULATIVE_ARGS *cum, enum machine_mode mode,
- const_tree type, bool named, struct score7_arg_info *info)
-{
- int even_reg_p;
- unsigned int num_words, max_regs;
-
- even_reg_p = 0;
- if (GET_MODE_CLASS (mode) == MODE_INT
- || GET_MODE_CLASS (mode) == MODE_FLOAT)
- even_reg_p = (GET_MODE_SIZE (mode) > UNITS_PER_WORD);
- else
- if (type != NULL_TREE && TYPE_ALIGN (type) > BITS_PER_WORD && named)
- even_reg_p = 1;
-
- if (TARGET_MUST_PASS_IN_STACK (mode, type))
- info->reg_offset = ARG_REG_NUM;
- else
- {
- info->reg_offset = cum->num_gprs;
- if (even_reg_p)
- info->reg_offset += info->reg_offset & 1;
- }
-
- if (mode == BLKmode)
- info->num_bytes = int_size_in_bytes (type);
- else
- info->num_bytes = GET_MODE_SIZE (mode);
-
- num_words = (info->num_bytes + UNITS_PER_WORD - 1) / UNITS_PER_WORD;
- max_regs = ARG_REG_NUM - info->reg_offset;
-
- /* Partition the argument between registers and stack. */
- info->reg_words = MIN (num_words, max_regs);
- info->stack_words = num_words - info->reg_words;
-
- /* The alignment applied to registers is also applied to stack arguments. */
- if (info->stack_words)
- {
- info->stack_offset = cum->stack_words;
- if (even_reg_p)
- info->stack_offset += info->stack_offset & 1;
- }
-}
-
-/* Set up the stack and frame (if desired) for the function. */
-void
-score7_function_prologue (FILE *file, HOST_WIDE_INT size ATTRIBUTE_UNUSED)
-{
- const char *fnname;
- struct score7_frame_info *f = score7_cached_frame ();
- HOST_WIDE_INT tsize = f->total_size;
-
- fnname = XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0);
- if (!flag_inhibit_size_directive)
- {
- fputs ("\t.ent\t", file);
- assemble_name (file, fnname);
- fputs ("\n", file);
- }
- assemble_name (file, fnname);
- fputs (":\n", file);
-
- if (!flag_inhibit_size_directive)
- {
- fprintf (file,
- "\t.frame\t%s," HOST_WIDE_INT_PRINT_DEC ",%s, %d\t\t"
- "# vars= " HOST_WIDE_INT_PRINT_DEC ", regs= %d"
- ", args= " HOST_WIDE_INT_PRINT_DEC
- ", gp= " HOST_WIDE_INT_PRINT_DEC "\n",
- (reg_names[(frame_pointer_needed)
- ? HARD_FRAME_POINTER_REGNUM : STACK_POINTER_REGNUM]),
- tsize,
- reg_names[RA_REGNUM],
- current_function_is_leaf ? 1 : 0,
- f->var_size,
- f->num_gp,
- f->args_size,
- f->cprestore_size);
-
- fprintf(file, "\t.mask\t0x%08x," HOST_WIDE_INT_PRINT_DEC "\n",
- f->mask,
- (f->gp_sp_offset - f->total_size));
- }
-}
-
-/* Do any necessary cleanup after a function to restore stack, frame,
- and regs. */
-void
-score7_function_epilogue (FILE *file,
- HOST_WIDE_INT size ATTRIBUTE_UNUSED)
-{
- if (!flag_inhibit_size_directive)
- {
- const char *fnname;
- fnname = XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0);
- fputs ("\t.end\t", file);
- assemble_name (file, fnname);
- fputs ("\n", file);
- }
-}
-
-/* Returns true if X contains a SYMBOL_REF. */
-static bool
-score7_symbolic_expression_p (rtx x)
-{
- if (GET_CODE (x) == SYMBOL_REF)
- return true;
-
- if (GET_CODE (x) == CONST)
- return score7_symbolic_expression_p (XEXP (x, 0));
-
- if (UNARY_P (x))
- return score7_symbolic_expression_p (XEXP (x, 0));
-
- if (ARITHMETIC_P (x))
- return (score7_symbolic_expression_p (XEXP (x, 0))
- || score7_symbolic_expression_p (XEXP (x, 1)));
-
- return false;
-}
-
-/* Choose the section to use for the constant rtx expression X that has
- mode MODE. */
-section *
-score7_select_rtx_section (enum machine_mode mode, rtx x,
- unsigned HOST_WIDE_INT align)
-{
- if (GET_MODE_SIZE (mode) <= SCORE7_SDATA_MAX)
- return get_named_section (0, ".sdata", 0);
- else if (flag_pic && score7_symbolic_expression_p (x))
- return get_named_section (0, ".data.rel.ro", 3);
- else
- return mergeable_constant_section (mode, align, 0);
-}
-
-/* Implement TARGET_IN_SMALL_DATA_P. */
-bool
-score7_in_small_data_p (const_tree decl)
-{
- HOST_WIDE_INT size;
-
- if (TREE_CODE (decl) == STRING_CST
- || TREE_CODE (decl) == FUNCTION_DECL)
- return false;
-
- if (TREE_CODE (decl) == VAR_DECL && DECL_SECTION_NAME (decl) != 0)
- {
- const char *name;
- name = TREE_STRING_POINTER (DECL_SECTION_NAME (decl));
- if (strcmp (name, ".sdata") != 0
- && strcmp (name, ".sbss") != 0)
- return true;
- if (!DECL_EXTERNAL (decl))
- return false;
- }
- size = int_size_in_bytes (TREE_TYPE (decl));
- return (size > 0 && size <= SCORE7_SDATA_MAX);
-}
-
-/* Implement TARGET_ASM_FILE_START. */
-void
-score7_asm_file_start (void)
-{
- default_file_start ();
- fprintf (asm_out_file, ASM_COMMENT_START
- "GCC for S+core %s \n", SCORE_GCC_VERSION);
-
- if (flag_pic)
- fprintf (asm_out_file, "\t.set pic\n");
-}
-
-/* Implement TARGET_ASM_FILE_END. When using assembler macros, emit
- .externs for any small-data variables that turned out to be external. */
-void
-score7_asm_file_end (void)
-{
- tree name_tree;
- struct extern_list *p;
- if (extern_head)
- {
- fputs ("\n", asm_out_file);
- for (p = extern_head; p != 0; p = p->next)
- {
- name_tree = get_identifier (p->name);
- if (!TREE_ASM_WRITTEN (name_tree)
- && TREE_SYMBOL_REFERENCED (name_tree))
- {
- TREE_ASM_WRITTEN (name_tree) = 1;
- fputs ("\t.extern\t", asm_out_file);
- assemble_name (asm_out_file, p->name);
- fprintf (asm_out_file, ", %d\n", p->size);
- }
- }
- }
-}
-
-/* Implement TARGET_OPTION_OVERRIDE hook. */
-void
-score7_option_override (void)
-{
- flag_pic = false;
- score7_sdata_max = SCORE7_DEFAULT_SDATA_MAX;
-
-}
-
-/* Implement REGNO_REG_CLASS macro. */
-int
-score7_reg_class (int regno)
-{
- int c;
- gcc_assert (regno >= 0 && regno < FIRST_PSEUDO_REGISTER);
-
- if (regno == FRAME_POINTER_REGNUM
- || regno == ARG_POINTER_REGNUM)
- return ALL_REGS;
-
- for (c = 0; c < N_REG_CLASSES; c++)
- if (TEST_HARD_REG_BIT (reg_class_contents[c], regno))
- return c;
-
- return NO_REGS;
-}
-
-/* Implement PREFERRED_RELOAD_CLASS macro. */
-enum reg_class
-score7_preferred_reload_class (rtx x ATTRIBUTE_UNUSED, enum reg_class rclass)
-{
- if (reg_class_subset_p (G16_REGS, rclass))
- return G16_REGS;
- if (reg_class_subset_p (G32_REGS, rclass))
- return G32_REGS;
- return rclass;
-}
-
-/* Implement SECONDARY_INPUT_RELOAD_CLASS
- and SECONDARY_OUTPUT_RELOAD_CLASS macro. */
-enum reg_class
-score7_secondary_reload_class (enum reg_class rclass,
- enum machine_mode mode ATTRIBUTE_UNUSED,
- rtx x)
-{
- int regno = -1;
- if (GET_CODE (x) == REG || GET_CODE(x) == SUBREG)
- regno = true_regnum (x);
-
- if (!GR_REG_CLASS_P (rclass))
- return GP_REG_P (regno) ? NO_REGS : G32_REGS;
- return NO_REGS;
-}
-
-
-/* Return truth value on whether or not a given hard register
- can support a given mode. */
-int
-score7_hard_regno_mode_ok (unsigned int regno, enum machine_mode mode)
-{
- int size = GET_MODE_SIZE (mode);
- enum mode_class mclass = GET_MODE_CLASS (mode);
-
- if (mclass == MODE_CC)
- return regno == CC_REGNUM;
- else if (regno == FRAME_POINTER_REGNUM
- || regno == ARG_POINTER_REGNUM)
- return mclass == MODE_INT;
- else if (GP_REG_P (regno))
- /* ((regno <= (GP_REG_LAST- HARD_REGNO_NREGS (dummy, mode)) + 1) */
- return !(regno & 1) || (size <= UNITS_PER_WORD);
- else if (CE_REG_P (regno))
- return (mclass == MODE_INT
- && ((size <= UNITS_PER_WORD)
- || (regno == CE_REG_FIRST && size == 2 * UNITS_PER_WORD)));
- else
- return (mclass == MODE_INT) && (size <= UNITS_PER_WORD);
-}
-
-/* Implement INITIAL_ELIMINATION_OFFSET. FROM is either the frame
- pointer or argument pointer. TO is either the stack pointer or
- hard frame pointer. */
-HOST_WIDE_INT
-score7_initial_elimination_offset (int from,
- int to ATTRIBUTE_UNUSED)
-{
- struct score7_frame_info *f = score7_compute_frame_size (get_frame_size ());
- switch (from)
- {
- case ARG_POINTER_REGNUM:
- return f->total_size;
- case FRAME_POINTER_REGNUM:
- return 0;
- default:
- gcc_unreachable ();
- }
-}
-
-/* Implement TARGET_FUNCTION_ARG_ADVANCE hook. */
-void
-score7_function_arg_advance (CUMULATIVE_ARGS *cum, enum machine_mode mode,
- const_tree type, bool named)
-{
- struct score7_arg_info info;
- score7_classify_arg (cum, mode, type, named, &info);
- cum->num_gprs = info.reg_offset + info.reg_words;
- if (info.stack_words > 0)
- cum->stack_words = info.stack_offset + info.stack_words;
- cum->arg_number++;
-}
-
-/* Implement TARGET_ARG_PARTIAL_BYTES macro. */
-int
-score7_arg_partial_bytes (CUMULATIVE_ARGS *cum,
- enum machine_mode mode, tree type, bool named)
-{
- struct score7_arg_info info;
- score7_classify_arg (cum, mode, type, named, &info);
- return info.stack_words > 0 ? info.reg_words * UNITS_PER_WORD : 0;
-}
-
-/* Implement TARGET_FUNCTION_ARG hook. */
-rtx
-score7_function_arg (const CUMULATIVE_ARGS *cum, enum machine_mode mode,
- const_tree type, bool named)
-{
- struct score7_arg_info info;
-
- if (mode == VOIDmode || !named)
- return 0;
-
- score7_classify_arg (cum, mode, type, named, &info);
-
- if (info.reg_offset == ARG_REG_NUM)
- return 0;
-
- if (!info.stack_words)
- return gen_rtx_REG (mode, ARG_REG_FIRST + info.reg_offset);
- else
- {
- rtx ret = gen_rtx_PARALLEL (mode, rtvec_alloc (info.reg_words));
- unsigned int i, part_offset = 0;
- for (i = 0; i < info.reg_words; i++)
- {
- rtx reg;
- reg = gen_rtx_REG (SImode, ARG_REG_FIRST + info.reg_offset + i);
- XVECEXP (ret, 0, i) = gen_rtx_EXPR_LIST (SImode, reg,
- GEN_INT (part_offset));
- part_offset += UNITS_PER_WORD;
- }
- return ret;
- }
-}
-
-/* Implement FUNCTION_VALUE and LIBCALL_VALUE. For normal calls,
- VALTYPE is the return type and MODE is VOIDmode. For libcalls,
- VALTYPE is null and MODE is the mode of the return value. */
-rtx
-score7_function_value (const_tree valtype, const_tree func,
- enum machine_mode mode)
-{
- if (valtype)
- {
- int unsignedp;
- mode = TYPE_MODE (valtype);
- unsignedp = TYPE_UNSIGNED (valtype);
- mode = promote_function_mode (valtype, mode, &unsignedp, func, 1);
- }
- return gen_rtx_REG (mode, RT_REGNUM);
-}
-
-/* Implement TARGET_ASM_TRAMPOLINE_TEMPLATE. */
-
-void
-score7_asm_trampoline_template (FILE *f)
-{
- fprintf (f, "\t.set r1\n");
- fprintf (f, "\tmv r31, r3\n");
- fprintf (f, "\tbl nextinsn\n");
- fprintf (f, "nextinsn:\n");
- fprintf (f, "\tlw r1, [r3, 6*4-8]\n");
- fprintf (f, "\tlw r23, [r3, 6*4-4]\n");
- fprintf (f, "\tmv r3, r31\n");
- fprintf (f, "\tbr! r1\n");
- fprintf (f, "\tnop!\n");
- fprintf (f, "\t.set nor1\n");
-}
-
-/* Implement TARGET_TRAMPOLINE_INIT. */
-void
-score7_trampoline_init (rtx m_tramp, tree fndecl, rtx chain_value)
-{
-#define CODE_SIZE (TRAMPOLINE_INSNS * UNITS_PER_WORD)
-
- rtx fnaddr = XEXP (DECL_RTL (fndecl), 0);
- rtx addr = XEXP (m_tramp, 0);
- rtx mem;
-
- emit_block_move (m_tramp, assemble_trampoline_template (),
- GEN_INT (TRAMPOLINE_SIZE), BLOCK_OP_NORMAL);
-
- mem = adjust_address (m_tramp, SImode, CODE_SIZE);
- emit_move_insn (mem, fnaddr);
- mem = adjust_address (m_tramp, SImode, CODE_SIZE + GET_MODE_SIZE (SImode));
- emit_move_insn (mem, chain_value);
-
-#undef CODE_SIZE
-}
-
-/* This function is used to implement REG_MODE_OK_FOR_BASE_P macro. */
-int
-score7_regno_mode_ok_for_base_p (int regno, int strict)
-{
- if (regno >= FIRST_PSEUDO_REGISTER)
- {
- if (!strict)
- return 1;
- regno = reg_renumber[regno];
- }
- if (regno == ARG_POINTER_REGNUM
- || regno == FRAME_POINTER_REGNUM)
- return 1;
- return GP_REG_P (regno);
-}
-
-/* Implement TARGET_LEGITIMATE_ADDRESS_P macro. */
-bool
-score7_legitimate_address_p (enum machine_mode mode, rtx x, bool strict)
-{
- struct score7_address_info addr;
-
- return score7_classify_address (&addr, mode, x, strict);
-}
-
-/* Return a number assessing the cost of moving a register in class
- FROM to class TO. */
-int
-score7_register_move_cost (enum machine_mode mode ATTRIBUTE_UNUSED,
- enum reg_class from, enum reg_class to)
-{
- if (GR_REG_CLASS_P (from))
- {
- if (GR_REG_CLASS_P (to))
- return 2;
- else if (SP_REG_CLASS_P (to))
- return 4;
- else if (CP_REG_CLASS_P (to))
- return 5;
- else if (CE_REG_CLASS_P (to))
- return 6;
- }
- if (GR_REG_CLASS_P (to))
- {
- if (GR_REG_CLASS_P (from))
- return 2;
- else if (SP_REG_CLASS_P (from))
- return 4;
- else if (CP_REG_CLASS_P (from))
- return 5;
- else if (CE_REG_CLASS_P (from))
- return 6;
- }
- return 12;
-}
-
-/* Return the number of instructions needed to load a symbol of the
- given type into a register. */
-static int
-score7_symbol_insns (enum score_symbol_type type)
-{
- switch (type)
- {
- case SYMBOL_GENERAL:
- return 2;
-
- case SYMBOL_SMALL_DATA:
- return 1;
- }
-
- gcc_unreachable ();
-}
-
-/* Return the number of instructions needed to load or store a value
- of mode MODE at X. Return 0 if X isn't valid for MODE. */
-static int
-score7_address_insns (rtx x, enum machine_mode mode)
-{
- struct score7_address_info addr;
- int factor;
-
- if (mode == BLKmode)
- factor = 1;
- else
- factor = (GET_MODE_SIZE (mode) + UNITS_PER_WORD - 1) / UNITS_PER_WORD;
-
- if (score7_classify_address (&addr, mode, x, false))
- switch (addr.type)
- {
- case SCORE7_ADD_REG:
- case SCORE7_ADD_CONST_INT:
- return factor;
-
- case SCORE7_ADD_SYMBOLIC:
- return factor * score7_symbol_insns (addr.symbol_type);
- }
- return 0;
-}
-
-/* Implement TARGET_RTX_COSTS macro. */
-bool
-score7_rtx_costs (rtx x, int code, int outer_code, int *total,
- bool speed ATTRIBUTE_UNUSED)
-{
- enum machine_mode mode = GET_MODE (x);
-
- switch (code)
- {
- case CONST_INT:
- if (outer_code == SET)
- {
- if (((INTVAL (x) & 0xffff) == 0)
- || (INTVAL (x) >= -32768 && INTVAL (x) <= 32767))
- *total = COSTS_N_INSNS (1);
- else
- *total = COSTS_N_INSNS (2);
- }
- else if (outer_code == PLUS || outer_code == MINUS)
- {
- if (INTVAL (x) >= -8192 && INTVAL (x) <= 8191)
- *total = 0;
- else if (((INTVAL (x) & 0xffff) == 0)
- || (INTVAL (x) >= -32768 && INTVAL (x) <= 32767))
- *total = 1;
- else
- *total = COSTS_N_INSNS (2);
- }
- else if (outer_code == AND || outer_code == IOR)
- {
- if (INTVAL (x) >= 0 && INTVAL (x) <= 16383)
- *total = 0;
- else if (((INTVAL (x) & 0xffff) == 0)
- || (INTVAL (x) >= 0 && INTVAL (x) <= 65535))
- *total = 1;
- else
- *total = COSTS_N_INSNS (2);
- }
- else
- {
- *total = 0;
- }
- return true;
-
- case CONST:
- case SYMBOL_REF:
- case LABEL_REF:
- case CONST_DOUBLE:
- *total = COSTS_N_INSNS (2);
- return true;
-
- case MEM:
- {
- /* If the address is legitimate, return the number of
- instructions it needs, otherwise use the default handling. */
- int n = score7_address_insns (XEXP (x, 0), GET_MODE (x));
- if (n > 0)
- {
- *total = COSTS_N_INSNS (n + 1);
- return true;
- }
- return false;
- }
-
- case FFS:
- *total = COSTS_N_INSNS (6);
- return true;
-
- case NOT:
- *total = COSTS_N_INSNS (1);
- return true;
-
- case AND:
- case IOR:
- case XOR:
- if (mode == DImode)
- {
- *total = COSTS_N_INSNS (2);
- return true;
- }
- return false;
-
- case ASHIFT:
- case ASHIFTRT:
- case LSHIFTRT:
- if (mode == DImode)
- {
- *total = COSTS_N_INSNS ((GET_CODE (XEXP (x, 1)) == CONST_INT)
- ? 4 : 12);
- return true;
- }
- return false;
-
- case ABS:
- *total = COSTS_N_INSNS (4);
- return true;
-
- case PLUS:
- case MINUS:
- if (mode == DImode)
- {
- *total = COSTS_N_INSNS (4);
- return true;
- }
- *total = COSTS_N_INSNS (1);
- return true;
-
- case NEG:
- if (mode == DImode)
- {
- *total = COSTS_N_INSNS (4);
- return true;
- }
- return false;
-
- case MULT:
- *total = optimize_size ? COSTS_N_INSNS (2) : COSTS_N_INSNS (12);
- return true;
-
- case DIV:
- case MOD:
- case UDIV:
- case UMOD:
- *total = optimize_size ? COSTS_N_INSNS (2) : COSTS_N_INSNS (33);
- return true;
-
- case SIGN_EXTEND:
- case ZERO_EXTEND:
- switch (GET_MODE (XEXP (x, 0)))
- {
- case QImode:
- case HImode:
- if (GET_CODE (XEXP (x, 0)) == MEM)
- {
- *total = COSTS_N_INSNS (2);
-
- if (!TARGET_LITTLE_ENDIAN &&
- side_effects_p (XEXP (XEXP (x, 0), 0)))
- *total = 100;
- }
- else
- *total = COSTS_N_INSNS (1);
- break;
-
- default:
- *total = COSTS_N_INSNS (1);
- break;
- }
- return true;
-
- default:
- return false;
- }
-}
-
-/* Implement TARGET_ADDRESS_COST macro. */
-int
-score7_address_cost (rtx addr)
-{
- return score7_address_insns (addr, SImode);
-}
-
-/* Implement ASM_OUTPUT_EXTERNAL macro. */
-int
-score7_output_external (FILE *file ATTRIBUTE_UNUSED,
- tree decl, const char *name)
-{
- register struct extern_list *p;
-
- if (score7_in_small_data_p (decl))
- {
- p = ggc_alloc_extern_list ();
- p->next = extern_head;
- p->name = name;
- p->size = int_size_in_bytes (TREE_TYPE (decl));
- extern_head = p;
- }
- return 0;
-}
-
-/* Implement RETURN_ADDR_RTX. Note, we do not support moving
- back to a previous frame. */
-rtx
-score7_return_addr (int count, rtx frame ATTRIBUTE_UNUSED)
-{
- if (count != 0)
- return const0_rtx;
- return get_hard_reg_initial_val (Pmode, RA_REGNUM);
-}
-
-/* Implement PRINT_OPERAND macro. */
-/* Score-specific operand codes:
- '[' print .set nor1 directive
- ']' print .set r1 directive
- 'U' print hi part of a CONST_INT rtx
- 'E' print log2(v)
- 'F' print log2(~v)
- 'D' print SFmode const double
- 'S' selectively print "!" if operand is 15bit instruction accessible
- 'V' print "v!" if operand is 15bit instruction accessible, or "lfh!"
- 'L' low part of DImode reg operand
- 'H' high part of DImode reg operand
- 'C' print part of opcode for a branch condition. */
-void
-score7_print_operand (FILE *file, rtx op, int c)
-{
- enum rtx_code code = UNKNOWN;
- if (!PRINT_OPERAND_PUNCT_VALID_P (c))
- code = GET_CODE (op);
-
- if (c == '[')
- {
- fprintf (file, ".set r1\n");
- }
- else if (c == ']')
- {
- fprintf (file, "\n\t.set nor1");
- }
- else if (c == 'U')
- {
- gcc_assert (code == CONST_INT);
- fprintf (file, HOST_WIDE_INT_PRINT_HEX,
- (INTVAL (op) >> 16) & 0xffff);
- }
- else if (c == 'D')
- {
- if (GET_CODE (op) == CONST_DOUBLE)
- {
- rtx temp = gen_lowpart (SImode, op);
- gcc_assert (GET_MODE (op) == SFmode);
- fprintf (file, HOST_WIDE_INT_PRINT_HEX, INTVAL (temp) & 0xffffffff);
- }
- else
- output_addr_const (file, op);
- }
- else if (c == 'S')
- {
- gcc_assert (code == REG);
- if (G16_REG_P (REGNO (op)))
- fprintf (file, "!");
- }
- else if (c == 'V')
- {
- gcc_assert (code == REG);
- fprintf (file, G16_REG_P (REGNO (op)) ? "v!" : "lfh!");
- }
- else if (c == 'C')
- {
- enum machine_mode mode = GET_MODE (XEXP (op, 0));
-
- switch (code)
- {
- case EQ: fputs ("eq", file); break;
- case NE: fputs ("ne", file); break;
- case GT: fputs ("gt", file); break;
- case GE: fputs (mode != CCmode ? "pl" : "ge", file); break;
- case LT: fputs (mode != CCmode ? "mi" : "lt", file); break;
- case LE: fputs ("le", file); break;
- case GTU: fputs ("gtu", file); break;
- case GEU: fputs ("cs", file); break;
- case LTU: fputs ("cc", file); break;
- case LEU: fputs ("leu", file); break;
- default:
- output_operand_lossage ("invalid operand for code: '%c'", code);
- }
- }
- else if (c == 'E')
- {
- unsigned HOST_WIDE_INT i;
- unsigned HOST_WIDE_INT pow2mask = 1;
- unsigned HOST_WIDE_INT val;
-
- val = INTVAL (op);
- for (i = 0; i < 32; i++)
- {
- if (val == pow2mask)
- break;
- pow2mask <<= 1;
- }
- gcc_assert (i < 32);
- fprintf (file, HOST_WIDE_INT_PRINT_HEX, i);
- }
- else if (c == 'F')
- {
- unsigned HOST_WIDE_INT i;
- unsigned HOST_WIDE_INT pow2mask = 1;
- unsigned HOST_WIDE_INT val;
-
- val = ~INTVAL (op);
- for (i = 0; i < 32; i++)
- {
- if (val == pow2mask)
- break;
- pow2mask <<= 1;
- }
- gcc_assert (i < 32);
- fprintf (file, HOST_WIDE_INT_PRINT_HEX, i);
- }
- else if (code == REG)
- {
- int regnum = REGNO (op);
- if ((c == 'H' && !WORDS_BIG_ENDIAN)
- || (c == 'L' && WORDS_BIG_ENDIAN))
- regnum ++;
- fprintf (file, "%s", reg_names[regnum]);
- }
- else
- {
- switch (code)
- {
- case MEM:
- score7_print_operand_address (file, op);
- break;
- default:
- output_addr_const (file, op);
- }
- }
-}
-
-/* Implement PRINT_OPERAND_ADDRESS macro. */
-void
-score7_print_operand_address (FILE *file, rtx x)
-{
- struct score7_address_info addr;
- enum rtx_code code = GET_CODE (x);
- enum machine_mode mode = GET_MODE (x);
-
- if (code == MEM)
- x = XEXP (x, 0);
-
- if (score7_classify_address (&addr, mode, x, true))
- {
- switch (addr.type)
- {
- case SCORE7_ADD_REG:
- {
- switch (addr.code)
- {
- case PRE_DEC:
- fprintf (file, "[%s,-%ld]+", reg_names[REGNO (addr.reg)],
- INTVAL (addr.offset));
- break;
- case POST_DEC:
- fprintf (file, "[%s]+,-%ld", reg_names[REGNO (addr.reg)],
- INTVAL (addr.offset));
- break;
- case PRE_INC:
- fprintf (file, "[%s, %ld]+", reg_names[REGNO (addr.reg)],
- INTVAL (addr.offset));
- break;
- case POST_INC:
- fprintf (file, "[%s]+, %ld", reg_names[REGNO (addr.reg)],
- INTVAL (addr.offset));
- break;
- default:
- if (INTVAL(addr.offset) == 0)
- fprintf(file, "[%s]", reg_names[REGNO (addr.reg)]);
- else
- fprintf(file, "[%s, %ld]", reg_names[REGNO (addr.reg)],
- INTVAL(addr.offset));
- break;
- }
- }
- return;
- case SCORE7_ADD_CONST_INT:
- case SCORE7_ADD_SYMBOLIC:
- output_addr_const (file, x);
- return;
- }
- }
- print_rtl (stderr, x);
- gcc_unreachable ();
-}
-
-/* Implement SELECT_CC_MODE macro. */
-enum machine_mode
-score7_select_cc_mode (enum rtx_code op, rtx x, rtx y)
-{
- if ((op == EQ || op == NE || op == LT || op == GE)
- && y == const0_rtx
- && GET_MODE (x) == SImode)
- {
- switch (GET_CODE (x))
- {
- case PLUS:
- case MINUS:
- case NEG:
- case AND:
- case IOR:
- case XOR:
- case NOT:
- case ASHIFT:
- case LSHIFTRT:
- case ASHIFTRT:
- return CC_NZmode;
-
- case SIGN_EXTEND:
- case ZERO_EXTEND:
- case ROTATE:
- case ROTATERT:
- return (op == LT || op == GE) ? CC_Nmode : CCmode;
-
- default:
- return CCmode;
- }
- }
-
- if ((op == EQ || op == NE)
- && (GET_CODE (y) == NEG)
- && register_operand (XEXP (y, 0), SImode)
- && register_operand (x, SImode))
- {
- return CC_NZmode;
- }
-
- return CCmode;
-}
-
-/* Generate the prologue instructions for entry into a S+core function. */
-void
-score7_prologue (void)
-{
-#define EMIT_PL(_rtx) RTX_FRAME_RELATED_P (_rtx) = 1
-
- struct score7_frame_info *f = score7_compute_frame_size (get_frame_size ());
- HOST_WIDE_INT size;
- int regno;
-
- size = f->total_size - f->gp_reg_size;
-
- if (flag_pic)
- emit_insn (gen_cpload_score7 ());
-
- for (regno = (int) GP_REG_LAST; regno >= (int) GP_REG_FIRST; regno--)
- {
- if (BITSET_P (f->mask, regno - GP_REG_FIRST))
- {
- rtx mem = gen_rtx_MEM (SImode,
- gen_rtx_PRE_DEC (SImode, stack_pointer_rtx));
- rtx reg = gen_rtx_REG (SImode, regno);
- if (!crtl->calls_eh_return)
- MEM_READONLY_P (mem) = 1;
- EMIT_PL (emit_insn (gen_pushsi_score7 (mem, reg)));
- }
- }
-
- if (size > 0)
- {
- rtx insn;
-
- if (size >= -32768 && size <= 32767)
- EMIT_PL (emit_insn (gen_add3_insn (stack_pointer_rtx,
- stack_pointer_rtx,
- GEN_INT (-size))));
- else
- {
- EMIT_PL (emit_move_insn (gen_rtx_REG (Pmode, SCORE7_PROLOGUE_TEMP_REGNUM),
- GEN_INT (size)));
- EMIT_PL (emit_insn
- (gen_sub3_insn (stack_pointer_rtx,
- stack_pointer_rtx,
- gen_rtx_REG (Pmode,
- SCORE7_PROLOGUE_TEMP_REGNUM))));
- }
- insn = get_last_insn ();
- REG_NOTES (insn) =
- alloc_EXPR_LIST (REG_FRAME_RELATED_EXPR,
- gen_rtx_SET (VOIDmode, stack_pointer_rtx,
- plus_constant (stack_pointer_rtx,
- -size)),
- REG_NOTES (insn));
- }
-
- if (frame_pointer_needed)
- EMIT_PL (emit_move_insn (hard_frame_pointer_rtx, stack_pointer_rtx));
-
- if (flag_pic && f->cprestore_size)
- {
- if (frame_pointer_needed)
- emit_insn (gen_cprestore_use_fp_score7 (GEN_INT (size - f->cprestore_size)));
- else
- emit_insn (gen_cprestore_use_sp_score7 (GEN_INT (size - f->cprestore_size)));
- }
-
-#undef EMIT_PL
-}
-
-/* Generate the epilogue instructions in a S+core function. */
-void
-score7_epilogue (int sibcall_p)
-{
- struct score7_frame_info *f = score7_compute_frame_size (get_frame_size ());
- HOST_WIDE_INT size;
- int regno;
- rtx base;
-
- size = f->total_size - f->gp_reg_size;
-
- if (!frame_pointer_needed)
- base = stack_pointer_rtx;
- else
- base = hard_frame_pointer_rtx;
-
- if (size)
- {
- if (size >= -32768 && size <= 32767)
- emit_insn (gen_add3_insn (base, base, GEN_INT (size)));
- else
- {
- emit_move_insn (gen_rtx_REG (Pmode, SCORE7_EPILOGUE_TEMP_REGNUM),
- GEN_INT (size));
- emit_insn (gen_add3_insn (base, base,
- gen_rtx_REG (Pmode,
- SCORE7_EPILOGUE_TEMP_REGNUM)));
- }
- }
-
- if (base != stack_pointer_rtx)
- emit_move_insn (stack_pointer_rtx, base);
-
- if (crtl->calls_eh_return)
- emit_insn (gen_add3_insn (stack_pointer_rtx,
- stack_pointer_rtx,
- EH_RETURN_STACKADJ_RTX));
-
- for (regno = (int) GP_REG_FIRST; regno <= (int) GP_REG_LAST; regno++)
- {
- if (BITSET_P (f->mask, regno - GP_REG_FIRST))
- {
- rtx mem = gen_rtx_MEM (SImode,
- gen_rtx_POST_INC (SImode, stack_pointer_rtx));
- rtx reg = gen_rtx_REG (SImode, regno);
-
- if (!crtl->calls_eh_return)
- MEM_READONLY_P (mem) = 1;
-
- emit_insn (gen_popsi_score7 (reg, mem));
- }
- }
-
- if (!sibcall_p)
- emit_jump_insn (gen_return_internal_score7 (gen_rtx_REG (Pmode, RA_REGNUM)));
-}
-
-/* Return true if X is a symbolic constant that can be calculated in
- the same way as a bare symbol. If it is, store the type of the
- symbol in *SYMBOL_TYPE. */
-int
-score7_symbolic_constant_p (rtx x, enum score_symbol_type *symbol_type)
-{
- HOST_WIDE_INT offset;
-
- score7_split_const (x, &x, &offset);
- if (GET_CODE (x) == SYMBOL_REF || GET_CODE (x) == LABEL_REF)
- *symbol_type = score7_classify_symbol (x);
- else
- return 0;
-
- if (offset == 0)
- return 1;
-
- /* if offset > 15bit, must reload */
- if (!IMM_IN_RANGE (offset, 15, 1))
- return 0;
-
- switch (*symbol_type)
- {
- case SYMBOL_GENERAL:
- return 1;
- case SYMBOL_SMALL_DATA:
- return score7_offset_within_object_p (x, offset);
- }
- gcc_unreachable ();
-}
-
-void
-score7_movsicc (rtx *ops)
-{
- enum machine_mode mode;
-
- mode = score7_select_cc_mode (GET_CODE (ops[1]), ops[2], ops[3]);
- emit_insn (gen_rtx_SET (VOIDmode, gen_rtx_REG (mode, CC_REGNUM),
- gen_rtx_COMPARE (mode, XEXP (ops[1], 0),
- XEXP (ops[1], 1))));
-}
-
-/* Call and sibcall pattern all need call this function. */
-void
-score7_call (rtx *ops, bool sib)
-{
- rtx addr = XEXP (ops[0], 0);
- if (!call_insn_operand (addr, VOIDmode))
- {
- rtx oaddr = addr;
- addr = gen_reg_rtx (Pmode);
- gen_move_insn (addr, oaddr);
- }
-
- if (sib)
- emit_call_insn (gen_sibcall_internal_score7 (addr, ops[1]));
- else
- emit_call_insn (gen_call_internal_score7 (addr, ops[1]));
-}
-
-/* Call value and sibcall value pattern all need call this function. */
-void
-score7_call_value (rtx *ops, bool sib)
-{
- rtx result = ops[0];
- rtx addr = XEXP (ops[1], 0);
- rtx arg = ops[2];
-
- if (!call_insn_operand (addr, VOIDmode))
- {
- rtx oaddr = addr;
- addr = gen_reg_rtx (Pmode);
- gen_move_insn (addr, oaddr);
- }
-
- if (sib)
- emit_call_insn (gen_sibcall_value_internal_score7 (result, addr, arg));
- else
- emit_call_insn (gen_call_value_internal_score7 (result, addr, arg));
-}
-
-/* Machine Split */
-void
-score7_movdi (rtx *ops)
-{
- rtx dst = ops[0];
- rtx src = ops[1];
- rtx dst0 = score7_subw (dst, 0);
- rtx dst1 = score7_subw (dst, 1);
- rtx src0 = score7_subw (src, 0);
- rtx src1 = score7_subw (src, 1);
-
- if (GET_CODE (dst0) == REG && reg_overlap_mentioned_p (dst0, src))
- {
- emit_move_insn (dst1, src1);
- emit_move_insn (dst0, src0);
- }
- else
- {
- emit_move_insn (dst0, src0);
- emit_move_insn (dst1, src1);
- }
-}
-
-void
-score7_zero_extract_andi (rtx *ops)
-{
- if (INTVAL (ops[1]) == 1 && const_uimm5 (ops[2], SImode))
- emit_insn (gen_zero_extract_bittst_score7 (ops[0], ops[2]));
- else
- {
- unsigned HOST_WIDE_INT mask;
- mask = (0xffffffffU & ((1U << INTVAL (ops[1])) - 1U));
- mask = mask << INTVAL (ops[2]);
- emit_insn (gen_andsi3_cmp_score7 (ops[3], ops[0],
- gen_int_mode (mask, SImode)));
- }
-}
-
-/* Check addr could be present as PRE/POST mode. */
-static bool
-score7_pindex_mem (rtx addr)
-{
- if (GET_CODE (addr) == MEM)
- {
- switch (GET_CODE (XEXP (addr, 0)))
- {
- case PRE_DEC:
- case POST_DEC:
- case PRE_INC:
- case POST_INC:
- return true;
- default:
- break;
- }
- }
- return false;
-}
-
-/* Output asm code for ld/sw insn. */
-static int
-score7_pr_addr_post (rtx *ops, int idata, int iaddr, char *ip, enum score_mem_unit unit)
-{
- struct score7_address_info ai;
-
- gcc_assert (GET_CODE (ops[idata]) == REG);
- gcc_assert (score7_classify_address (&ai, SImode, XEXP (ops[iaddr], 0), true));
-
- if (!score7_pindex_mem (ops[iaddr])
- && ai.type == SCORE7_ADD_REG
- && GET_CODE (ai.offset) == CONST_INT
- && G16_REG_P (REGNO (ops[idata]))
- && G16_REG_P (REGNO (ai.reg)))
- {
- if (INTVAL (ai.offset) == 0)
- {
- ops[iaddr] = ai.reg;
- return snprintf (ip, INS_BUF_SZ,
- "!\t%%%d, [%%%d]", idata, iaddr);
- }
- if (REGNO (ai.reg) == HARD_FRAME_POINTER_REGNUM)
- {
- HOST_WIDE_INT offset = INTVAL (ai.offset);
- if (SCORE_ALIGN_UNIT (offset, unit)
- && (((offset >> unit) >= 0) && ((offset >> unit) <= 31)))
- {
- ops[iaddr] = ai.offset;
- return snprintf (ip, INS_BUF_SZ,
- "p!\t%%%d, %%c%d", idata, iaddr);
- }
- }
- }
- return snprintf (ip, INS_BUF_SZ, "\t%%%d, %%a%d", idata, iaddr);
-}
-
-/* Output asm insn for load. */
-const char *
-score7_linsn (rtx *ops, enum score_mem_unit unit, bool sign)
-{
- const char *pre_ins[] =
- {"lbu", "lhu", "lw", "??", "lb", "lh", "lw", "??"};
- char *ip;
-
- strcpy (score7_ins, pre_ins[(sign ? 4 : 0) + unit]);
- ip = score7_ins + strlen (score7_ins);
-
- if ((!sign && unit != SCORE_HWORD)
- || (sign && unit != SCORE_BYTE))
- score7_pr_addr_post (ops, 0, 1, ip, unit);
- else
- snprintf (ip, INS_BUF_SZ, "\t%%0, %%a1");
-
- return score7_ins;
-}
-
-/* Output asm insn for store. */
-const char *
-score7_sinsn (rtx *ops, enum score_mem_unit unit)
-{
- const char *pre_ins[] = {"sb", "sh", "sw"};
- char *ip;
-
- strcpy (score7_ins, pre_ins[unit]);
- ip = score7_ins + strlen (score7_ins);
- score7_pr_addr_post (ops, 1, 0, ip, unit);
- return score7_ins;
-}
-
-/* Output asm insn for load immediate. */
-const char *
-score7_limm (rtx *ops)
-{
- HOST_WIDE_INT v;
-
- gcc_assert (GET_CODE (ops[0]) == REG);
- gcc_assert (GET_CODE (ops[1]) == CONST_INT);
-
- v = INTVAL (ops[1]);
- if (G16_REG_P (REGNO (ops[0])) && IMM_IN_RANGE (v, 8, 0))
- return "ldiu!\t%0, %c1";
- else if (IMM_IN_RANGE (v, 16, 1))
- return "ldi\t%0, %c1";
- else if ((v & 0xffff) == 0)
- return "ldis\t%0, %U1";
- else
- return "li\t%0, %c1";
-}
-
-/* Output asm insn for move. */
-const char *
-score7_move (rtx *ops)
-{
- gcc_assert (GET_CODE (ops[0]) == REG);
- gcc_assert (GET_CODE (ops[1]) == REG);
-
- if (G16_REG_P (REGNO (ops[0])))
- {
- if (G16_REG_P (REGNO (ops[1])))
- return "mv!\t%0, %1";
- else
- return "mlfh!\t%0, %1";
- }
- else if (G16_REG_P (REGNO (ops[1])))
- return "mhfl!\t%0, %1";
- else
- return "mv\t%0, %1";
-}
-
-/* Generate add insn. */
-const char *
-score7_select_add_imm (rtx *ops, bool set_cc)
-{
- HOST_WIDE_INT v = INTVAL (ops[2]);
-
- gcc_assert (GET_CODE (ops[2]) == CONST_INT);
- gcc_assert (REGNO (ops[0]) == REGNO (ops[1]));
-
- if (set_cc && G16_REG_P (REGNO (ops[0])))
- {
- if (v > 0 && IMM_IS_POW_OF_2 ((unsigned HOST_WIDE_INT) v, 0, 15))
- {
- ops[2] = GEN_INT (ffs (v) - 1);
- return "addei!\t%0, %c2";
- }
-
- if (v < 0 && IMM_IS_POW_OF_2 ((unsigned HOST_WIDE_INT) (-v), 0, 15))
- {
- ops[2] = GEN_INT (ffs (-v) - 1);
- return "subei!\t%0, %c2";
- }
- }
-
- if (set_cc)
- return "addi.c\t%0, %c2";
- else
- return "addi\t%0, %c2";
-}
-
-/* Output arith insn. */
-const char *
-score7_select (rtx *ops, const char *inst_pre,
- bool commu, const char *letter, bool set_cc)
-{
- gcc_assert (GET_CODE (ops[0]) == REG);
- gcc_assert (GET_CODE (ops[1]) == REG);
-
- if (set_cc && G16_REG_P (REGNO (ops[0]))
- && (GET_CODE (ops[2]) == REG ? G16_REG_P (REGNO (ops[2])) : 1)
- && REGNO (ops[0]) == REGNO (ops[1]))
- {
- snprintf (score7_ins, INS_BUF_SZ, "%s!\t%%0, %%%s2", inst_pre, letter);
- return score7_ins;
- }
-
- if (commu && set_cc && G16_REG_P (REGNO (ops[0]))
- && G16_REG_P (REGNO (ops[1]))
- && REGNO (ops[0]) == REGNO (ops[2]))
- {
- gcc_assert (GET_CODE (ops[2]) == REG);
- snprintf (score7_ins, INS_BUF_SZ, "%s!\t%%0, %%%s1", inst_pre, letter);
- return score7_ins;
- }
-
- if (set_cc)
- snprintf (score7_ins, INS_BUF_SZ, "%s.c\t%%0, %%1, %%%s2", inst_pre, letter);
- else
- snprintf (score7_ins, INS_BUF_SZ, "%s\t%%0, %%1, %%%s2", inst_pre, letter);
- return score7_ins;
-}
-
projects / gcc.git / commitdiff