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mir.c
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/* This file is a part of MIR project.
Copyright (C) 2018-2020 Vladimir Makarov <vmakarov.gcc@gmail.com>.
*/
#include "mir.h"
DEF_VARR (MIR_insn_t);
DEF_VARR (MIR_reg_t);
DEF_VARR (MIR_op_t);
DEF_VARR (MIR_type_t);
DEF_HTAB (MIR_item_t);
DEF_VARR (MIR_module_t);
DEF_VARR (size_t);
DEF_VARR (char);
DEF_VARR (uint8_t);
struct gen_ctx;
struct c2mir_ctx;
struct string_ctx;
struct reg_ctx;
struct simplify_ctx;
struct machine_code_ctx;
struct io_ctx;
struct scan_ctx;
struct interp_ctx;
struct MIR_context {
struct gen_ctx *gen_ctx; /* should be the 1st member */
struct c2mir_ctx *c2mir_ctx; /* should be the 2nd member */
MIR_error_func_t error_func;
VARR (MIR_insn_t) * temp_insns, *temp_insns2;
VARR (MIR_op_t) * temp_insn_ops;
VARR (MIR_var_t) * temp_vars;
VARR (MIR_type_t) * temp_types;
VARR (size_t) * insn_nops;
VARR (char) * temp_string;
VARR (uint8_t) * temp_data;
char temp_buff[30];
HTAB (MIR_item_t) * module_item_tab;
/* Module to keep items potentially used by all modules: */
struct MIR_module environment_module;
VARR (MIR_reg_t) * inline_reg_map;
MIR_module_t curr_module;
MIR_func_t curr_func;
int curr_label_num;
DLIST (MIR_module_t) all_modules;
VARR (MIR_module_t) * modules_to_link;
struct string_ctx *string_ctx;
struct reg_ctx *reg_ctx;
struct simplify_ctx *simplify_ctx;
struct machine_code_ctx *machine_code_ctx;
struct io_ctx *io_ctx;
struct scan_ctx *scan_ctx;
struct interp_ctx *interp_ctx;
size_t inlined_calls, inline_insns_before, inline_insns_after;
};
#define error_func ctx->error_func
#define temp_insns ctx->temp_insns
#define temp_insns2 ctx->temp_insns2
#define temp_insn_ops ctx->temp_insn_ops
#define temp_vars ctx->temp_vars
#define temp_types ctx->temp_types
#define insn_nops ctx->insn_nops
#define temp_string ctx->temp_string
#define temp_data ctx->temp_data
#define temp_buff ctx->temp_buff
#define module_item_tab ctx->module_item_tab
#define environment_module ctx->environment_module
#define inline_reg_map ctx->inline_reg_map
#define curr_module ctx->curr_module
#define curr_func ctx->curr_func
#define curr_label_num ctx->curr_label_num
#define all_modules ctx->all_modules
#define modules_to_link ctx->modules_to_link
#define inlined_calls ctx->inlined_calls
#define inline_insns_before ctx->inline_insns_before
#define inline_insns_after ctx->inline_insns_after
static void util_error (MIR_context_t ctx, const char *message);
#define MIR_VARR_ERROR util_error
#define MIR_HTAB_ERROR MIR_VARR_ERROR
#include "mir-hash.h"
#include "mir-htab.h"
#include "mir-reduce.h"
#include <string.h>
#include <stdarg.h>
#include <inttypes.h>
#include <float.h>
#include <ctype.h>
#include <limits.h>
static void interp_init (MIR_context_t ctx);
static void finish_func_interpretation (MIR_item_t func_item);
static void interp_finish (MIR_context_t ctx);
static void MIR_NO_RETURN default_error (enum MIR_error_type error_type, const char *format, ...) {
va_list ap;
va_start (ap, format);
vfprintf (stderr, format, ap);
fprintf (stderr, "\n");
va_end (ap);
exit (1);
}
static void MIR_NO_RETURN MIR_UNUSED util_error (MIR_context_t ctx, const char *message) {
(*error_func) (MIR_alloc_error, message);
}
#define HARD_REG_NAME_PREFIX "hr"
#define TEMP_REG_NAME_PREFIX "t"
#define TEMP_ITEM_NAME_PREFIX ".lc"
int _MIR_reserved_ref_name_p (MIR_context_t ctx, const char *name) {
return strncmp (name, TEMP_ITEM_NAME_PREFIX, strlen (TEMP_ITEM_NAME_PREFIX)) == 0;
}
/* Reserved names:
fp - frame pointer
hr<number> - a hardware reg
lc<number> - a temp item */
int _MIR_reserved_name_p (MIR_context_t ctx, const char *name) {
size_t i, start;
if (_MIR_reserved_ref_name_p (ctx, name))
return TRUE;
else if (strncmp (name, HARD_REG_NAME_PREFIX, strlen (HARD_REG_NAME_PREFIX)) == 0)
start = strlen (HARD_REG_NAME_PREFIX);
else
return FALSE;
for (i = start; name[i] != '\0'; i++)
if (name[i] < '0' || name[i] > '9') return FALSE;
return TRUE;
}
struct insn_desc {
MIR_insn_code_t code;
const char *name;
unsigned op_modes[4];
};
#define OUTPUT_FLAG (1 << 30)
static const struct insn_desc insn_descs[] = {
{MIR_MOV, "mov", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_FMOV, "fmov", {MIR_OP_FLOAT | OUTPUT_FLAG, MIR_OP_FLOAT, MIR_OP_BOUND}},
{MIR_DMOV, "dmov", {MIR_OP_DOUBLE | OUTPUT_FLAG, MIR_OP_DOUBLE, MIR_OP_BOUND}},
{MIR_LDMOV, "ldmov", {MIR_OP_LDOUBLE | OUTPUT_FLAG, MIR_OP_LDOUBLE, MIR_OP_BOUND}},
{MIR_EXT8, "ext8", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_EXT16, "ext16", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_EXT32, "ext32", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_UEXT8, "uext8", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_UEXT16, "uext16", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_UEXT32, "uext32", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_I2F, "i2f", {MIR_OP_FLOAT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_I2D, "i2d", {MIR_OP_DOUBLE | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_I2LD, "i2ld", {MIR_OP_LDOUBLE | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_UI2F, "ui2f", {MIR_OP_FLOAT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_UI2D, "ui2d", {MIR_OP_DOUBLE | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_UI2LD, "ui2ld", {MIR_OP_LDOUBLE | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_F2I, "f2i", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_FLOAT, MIR_OP_BOUND}},
{MIR_D2I, "d2i", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_DOUBLE, MIR_OP_BOUND}},
{MIR_LD2I, "ld2i", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_LDOUBLE, MIR_OP_BOUND}},
{MIR_F2D, "f2d", {MIR_OP_DOUBLE | OUTPUT_FLAG, MIR_OP_FLOAT, MIR_OP_BOUND}},
{MIR_F2LD, "f2ld", {MIR_OP_LDOUBLE | OUTPUT_FLAG, MIR_OP_FLOAT, MIR_OP_BOUND}},
{MIR_D2F, "d2f", {MIR_OP_FLOAT | OUTPUT_FLAG, MIR_OP_DOUBLE, MIR_OP_BOUND}},
{MIR_D2LD, "d2ld", {MIR_OP_LDOUBLE | OUTPUT_FLAG, MIR_OP_DOUBLE, MIR_OP_BOUND}},
{MIR_LD2F, "ld2f", {MIR_OP_FLOAT | OUTPUT_FLAG, MIR_OP_LDOUBLE, MIR_OP_BOUND}},
{MIR_LD2D, "ld2d", {MIR_OP_DOUBLE | OUTPUT_FLAG, MIR_OP_LDOUBLE, MIR_OP_BOUND}},
{MIR_NEG, "neg", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_NEGS, "negs", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_FNEG, "fneg", {MIR_OP_FLOAT | OUTPUT_FLAG, MIR_OP_FLOAT, MIR_OP_BOUND}},
{MIR_DNEG, "dneg", {MIR_OP_DOUBLE | OUTPUT_FLAG, MIR_OP_DOUBLE, MIR_OP_BOUND}},
{MIR_LDNEG, "ldneg", {MIR_OP_LDOUBLE | OUTPUT_FLAG, MIR_OP_LDOUBLE, MIR_OP_BOUND}},
{MIR_ADD, "add", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_ADDS, "adds", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_FADD, "fadd", {MIR_OP_FLOAT | OUTPUT_FLAG, MIR_OP_FLOAT, MIR_OP_FLOAT, MIR_OP_BOUND}},
{MIR_DADD, "dadd", {MIR_OP_DOUBLE | OUTPUT_FLAG, MIR_OP_DOUBLE, MIR_OP_DOUBLE, MIR_OP_BOUND}},
{MIR_LDADD,
"ldadd",
{MIR_OP_LDOUBLE | OUTPUT_FLAG, MIR_OP_LDOUBLE, MIR_OP_LDOUBLE, MIR_OP_BOUND}},
{MIR_SUB, "sub", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_SUBS, "subs", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_FSUB, "fsub", {MIR_OP_FLOAT | OUTPUT_FLAG, MIR_OP_FLOAT, MIR_OP_FLOAT, MIR_OP_BOUND}},
{MIR_DSUB, "dsub", {MIR_OP_DOUBLE | OUTPUT_FLAG, MIR_OP_DOUBLE, MIR_OP_DOUBLE, MIR_OP_BOUND}},
{MIR_LDSUB,
"ldsub",
{MIR_OP_LDOUBLE | OUTPUT_FLAG, MIR_OP_LDOUBLE, MIR_OP_LDOUBLE, MIR_OP_BOUND}},
{MIR_MUL, "mul", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_MULS, "muls", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_FMUL, "fmul", {MIR_OP_FLOAT | OUTPUT_FLAG, MIR_OP_FLOAT, MIR_OP_FLOAT, MIR_OP_BOUND}},
{MIR_DMUL, "dmul", {MIR_OP_DOUBLE | OUTPUT_FLAG, MIR_OP_DOUBLE, MIR_OP_DOUBLE, MIR_OP_BOUND}},
{MIR_LDMUL,
"ldmul",
{MIR_OP_LDOUBLE | OUTPUT_FLAG, MIR_OP_LDOUBLE, MIR_OP_LDOUBLE, MIR_OP_BOUND}},
{MIR_DIV, "div", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_DIVS, "divs", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_UDIV, "udiv", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_UDIVS, "udivs", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_FDIV, "fdiv", {MIR_OP_FLOAT | OUTPUT_FLAG, MIR_OP_FLOAT, MIR_OP_FLOAT, MIR_OP_BOUND}},
{MIR_DDIV, "ddiv", {MIR_OP_DOUBLE | OUTPUT_FLAG, MIR_OP_DOUBLE, MIR_OP_DOUBLE, MIR_OP_BOUND}},
{MIR_LDDIV,
"lddiv",
{MIR_OP_LDOUBLE | OUTPUT_FLAG, MIR_OP_LDOUBLE, MIR_OP_LDOUBLE, MIR_OP_BOUND}},
{MIR_MOD, "mod", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_MODS, "mods", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_UMOD, "umod", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_UMODS, "umods", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_AND, "and", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_ANDS, "ands", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_OR, "or", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_ORS, "ors", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_XOR, "xor", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_XORS, "xors", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_LSH, "lsh", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_LSHS, "lshs", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_RSH, "rsh", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_RSHS, "rshs", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_URSH, "ursh", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_URSHS, "urshs", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_EQ, "eq", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_EQS, "eqs", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_FEQ, "feq", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_FLOAT, MIR_OP_FLOAT, MIR_OP_BOUND}},
{MIR_DEQ, "deq", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_DOUBLE, MIR_OP_DOUBLE, MIR_OP_BOUND}},
{MIR_LDEQ, "ldeq", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_LDOUBLE, MIR_OP_LDOUBLE, MIR_OP_BOUND}},
{MIR_NE, "ne", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_NES, "nes", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_FNE, "fne", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_FLOAT, MIR_OP_FLOAT, MIR_OP_BOUND}},
{MIR_DNE, "dne", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_DOUBLE, MIR_OP_DOUBLE, MIR_OP_BOUND}},
{MIR_LDNE, "ldne", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_LDOUBLE, MIR_OP_LDOUBLE, MIR_OP_BOUND}},
{MIR_LT, "lt", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_LTS, "lts", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_ULT, "ult", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_ULTS, "ults", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_FLT, "flt", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_FLOAT, MIR_OP_FLOAT, MIR_OP_BOUND}},
{MIR_DLT, "dlt", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_DOUBLE, MIR_OP_DOUBLE, MIR_OP_BOUND}},
{MIR_LDLT, "ldlt", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_LDOUBLE, MIR_OP_LDOUBLE, MIR_OP_BOUND}},
{MIR_LE, "le", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_LES, "les", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_ULE, "ule", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_ULES, "ules", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_FLE, "fle", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_FLOAT, MIR_OP_FLOAT, MIR_OP_BOUND}},
{MIR_DLE, "dle", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_DOUBLE, MIR_OP_DOUBLE, MIR_OP_BOUND}},
{MIR_LDLE, "ldle", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_LDOUBLE, MIR_OP_LDOUBLE, MIR_OP_BOUND}},
{MIR_GT, "gt", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_GTS, "gts", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_UGT, "ugt", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_UGTS, "ugts", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_FGT, "fgt", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_FLOAT, MIR_OP_FLOAT, MIR_OP_BOUND}},
{MIR_DGT, "dgt", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_DOUBLE, MIR_OP_DOUBLE, MIR_OP_BOUND}},
{MIR_LDGT, "ldgt", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_LDOUBLE, MIR_OP_LDOUBLE, MIR_OP_BOUND}},
{MIR_GE, "ge", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_GES, "ges", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_UGE, "uge", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_UGES, "uges", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_FGE, "fge", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_FLOAT, MIR_OP_FLOAT, MIR_OP_BOUND}},
{MIR_DGE, "dge", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_DOUBLE, MIR_OP_DOUBLE, MIR_OP_BOUND}},
{MIR_LDGE, "ldge", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_LDOUBLE, MIR_OP_LDOUBLE, MIR_OP_BOUND}},
{MIR_JMP, "jmp", {MIR_OP_LABEL, MIR_OP_BOUND}},
{MIR_BT, "bt", {MIR_OP_LABEL, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_BTS, "bts", {MIR_OP_LABEL, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_BF, "bf", {MIR_OP_LABEL, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_BFS, "bfs", {MIR_OP_LABEL, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_BEQ, "beq", {MIR_OP_LABEL, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_BEQS, "beqs", {MIR_OP_LABEL, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_FBEQ, "fbeq", {MIR_OP_LABEL, MIR_OP_FLOAT, MIR_OP_FLOAT, MIR_OP_BOUND}},
{MIR_DBEQ, "dbeq", {MIR_OP_LABEL, MIR_OP_DOUBLE, MIR_OP_DOUBLE, MIR_OP_BOUND}},
{MIR_LDBEQ, "ldbeq", {MIR_OP_LABEL, MIR_OP_LDOUBLE, MIR_OP_LDOUBLE, MIR_OP_BOUND}},
{MIR_BNE, "bne", {MIR_OP_LABEL, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_BNES, "bnes", {MIR_OP_LABEL, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_FBNE, "fbne", {MIR_OP_LABEL, MIR_OP_FLOAT, MIR_OP_FLOAT, MIR_OP_BOUND}},
{MIR_DBNE, "dbne", {MIR_OP_LABEL, MIR_OP_DOUBLE, MIR_OP_DOUBLE, MIR_OP_BOUND}},
{MIR_LDBNE, "ldbne", {MIR_OP_LABEL, MIR_OP_LDOUBLE, MIR_OP_LDOUBLE, MIR_OP_BOUND}},
{MIR_BLT, "blt", {MIR_OP_LABEL, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_BLTS, "blts", {MIR_OP_LABEL, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_UBLT, "ublt", {MIR_OP_LABEL, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_UBLTS, "ublts", {MIR_OP_LABEL, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_FBLT, "fblt", {MIR_OP_LABEL, MIR_OP_FLOAT, MIR_OP_FLOAT, MIR_OP_BOUND}},
{MIR_DBLT, "dblt", {MIR_OP_LABEL, MIR_OP_DOUBLE, MIR_OP_DOUBLE, MIR_OP_BOUND}},
{MIR_LDBLT, "ldblt", {MIR_OP_LABEL, MIR_OP_LDOUBLE, MIR_OP_LDOUBLE, MIR_OP_BOUND}},
{MIR_BLE, "ble", {MIR_OP_LABEL, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_BLES, "bles", {MIR_OP_LABEL, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_UBLE, "uble", {MIR_OP_LABEL, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_UBLES, "ubles", {MIR_OP_LABEL, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_FBLE, "fble", {MIR_OP_LABEL, MIR_OP_FLOAT, MIR_OP_FLOAT, MIR_OP_BOUND}},
{MIR_DBLE, "dble", {MIR_OP_LABEL, MIR_OP_DOUBLE, MIR_OP_DOUBLE, MIR_OP_BOUND}},
{MIR_LDBLE, "ldble", {MIR_OP_LABEL, MIR_OP_LDOUBLE, MIR_OP_LDOUBLE, MIR_OP_BOUND}},
{MIR_BGT, "bgt", {MIR_OP_LABEL, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_BGTS, "bgts", {MIR_OP_LABEL, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_UBGT, "ubgt", {MIR_OP_LABEL, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_UBGTS, "ubgts", {MIR_OP_LABEL, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_FBGT, "fbgt", {MIR_OP_LABEL, MIR_OP_FLOAT, MIR_OP_FLOAT, MIR_OP_BOUND}},
{MIR_DBGT, "dbgt", {MIR_OP_LABEL, MIR_OP_DOUBLE, MIR_OP_DOUBLE, MIR_OP_BOUND}},
{MIR_LDBGT, "ldbgt", {MIR_OP_LABEL, MIR_OP_LDOUBLE, MIR_OP_LDOUBLE, MIR_OP_BOUND}},
{MIR_BGE, "bge", {MIR_OP_LABEL, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_BGES, "bges", {MIR_OP_LABEL, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_UBGE, "ubge", {MIR_OP_LABEL, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_UBGES, "ubges", {MIR_OP_LABEL, MIR_OP_INT, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_FBGE, "fbge", {MIR_OP_LABEL, MIR_OP_FLOAT, MIR_OP_FLOAT, MIR_OP_BOUND}},
{MIR_DBGE, "dbge", {MIR_OP_LABEL, MIR_OP_DOUBLE, MIR_OP_DOUBLE, MIR_OP_BOUND}},
{MIR_LDBGE, "ldbge", {MIR_OP_LABEL, MIR_OP_LDOUBLE, MIR_OP_LDOUBLE, MIR_OP_BOUND}},
{MIR_CALL, "call", {MIR_OP_BOUND}},
{MIR_INLINE, "inline", {MIR_OP_BOUND}},
{MIR_SWITCH, "switch", {MIR_OP_BOUND}},
{MIR_RET, "ret", {MIR_OP_BOUND}},
{MIR_ALLOCA, "alloca", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_BOUND}},
{MIR_BSTART, "bstart", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_BOUND}},
{MIR_BEND, "bend", {MIR_OP_INT, MIR_OP_BOUND}},
{MIR_VA_ARG, "va_arg", {MIR_OP_INT | OUTPUT_FLAG, MIR_OP_INT, MIR_OP_UNDEF, MIR_OP_BOUND}},
{MIR_VA_START, "va_start", {MIR_OP_INT, MIR_OP_BOUND}},
{MIR_VA_END, "va_end", {MIR_OP_INT, MIR_OP_BOUND}},
{MIR_LABEL, "label", {MIR_OP_BOUND}},
{MIR_INVALID_INSN, "invalid-insn", {MIR_OP_BOUND}},
};
static void check_and_prepare_insn_descs (MIR_context_t ctx) {
size_t i, j;
VARR_CREATE (size_t, insn_nops, 0);
for (i = 0; i < MIR_INSN_BOUND; i++) {
mir_assert (insn_descs[i].code == i);
for (j = 0; insn_descs[i].op_modes[j] != MIR_OP_BOUND; j++)
;
VARR_PUSH (size_t, insn_nops, j);
}
}
static MIR_op_mode_t type2mode (MIR_type_t type) {
return (type == MIR_T_UNDEF
? MIR_OP_UNDEF
: type == MIR_T_F
? MIR_OP_FLOAT
: type == MIR_T_D ? MIR_OP_DOUBLE : type == MIR_T_LD ? MIR_OP_LDOUBLE : MIR_OP_INT);
}
/* New Page */
typedef struct string {
size_t num; /* string number starting with 1 */
MIR_str_t str;
} string_t;
DEF_VARR (string_t);
DEF_HTAB (string_t);
struct string_ctx {
VARR (string_t) * strings;
HTAB (string_t) * string_tab;
};
#define strings ctx->string_ctx->strings
#define string_tab ctx->string_ctx->string_tab
static htab_hash_t str_hash (string_t str, void *arg) {
return mir_hash (str.str.s, str.str.len, 0);
}
static int str_eq (string_t str1, string_t str2, void *arg) {
return str1.str.len == str2.str.len && memcmp (str1.str.s, str2.str.s, str1.str.len) == 0;
}
static void string_init (VARR (string_t) * *strs, HTAB (string_t) * *str_tab) {
string_t string = {0, {0, NULL}};
VARR_CREATE (string_t, *strs, 0);
VARR_PUSH (string_t, *strs, string); /* don't use 0th string */
HTAB_CREATE (string_t, *str_tab, 1000, str_hash, str_eq, NULL);
}
static int string_find (VARR (string_t) * *strs, HTAB (string_t) * *str_tab, MIR_str_t str,
string_t *s) {
string_t string;
string.str = str;
return HTAB_DO (string_t, *str_tab, string, HTAB_FIND, *s);
}
static string_t string_store (MIR_context_t ctx, VARR (string_t) * *strs,
HTAB (string_t) * *str_tab, MIR_str_t str) {
char *heap_str;
string_t el, string;
if (string_find (strs, str_tab, str, &el)) return el;
if ((heap_str = malloc (str.len)) == NULL)
(*error_func) (MIR_alloc_error, "Not enough memory for strings");
memcpy (heap_str, str.s, str.len);
string.str.s = heap_str;
string.str.len = str.len;
string.num = VARR_LENGTH (string_t, *strs);
VARR_PUSH (string_t, *strs, string);
HTAB_DO (string_t, *str_tab, string, HTAB_INSERT, el);
return string;
}
static void string_finish (VARR (string_t) * *strs, HTAB (string_t) * *str_tab) {
size_t i;
for (i = 1; i < VARR_LENGTH (string_t, *strs); i++)
free ((char *) VARR_ADDR (string_t, *strs)[i].str.s);
VARR_DESTROY (string_t, *strs);
HTAB_DESTROY (string_t, *str_tab);
}
/* New Page */
typedef struct reg_desc {
size_t name_num; /* 1st key for the namenum2rdn hash tab */
MIR_func_t func; /* 2nd key for hash the both tabs */
MIR_type_t type;
MIR_reg_t reg; /* 1st key reg2rdn hash tab */
} reg_desc_t;
DEF_VARR (reg_desc_t);
DEF_HTAB (size_t);
struct reg_ctx {
VARR (reg_desc_t) * reg_descs;
HTAB (size_t) * namenum2rdn_tab;
HTAB (size_t) * reg2rdn_tab;
};
#define reg_descs ctx->reg_ctx->reg_descs
#define namenum2rdn_tab ctx->reg_ctx->namenum2rdn_tab
#define reg2rdn_tab ctx->reg_ctx->reg2rdn_tab
static int namenum2rdn_eq (size_t rdn1, size_t rdn2, void *arg) {
MIR_context_t ctx = arg;
reg_desc_t *addr = VARR_ADDR (reg_desc_t, reg_descs);
return (addr[rdn1].name_num == addr[rdn2].name_num && addr[rdn1].func == addr[rdn2].func);
}
static htab_hash_t namenum2rdn_hash (size_t rdn, void *arg) {
MIR_context_t ctx = arg;
reg_desc_t *addr = VARR_ADDR (reg_desc_t, reg_descs);
return mir_hash_finish (
mir_hash_step (mir_hash_step (mir_hash_init (0), (uint64_t) addr[rdn].func),
(uint64_t) addr[rdn].name_num));
}
static int reg2rdn_eq (size_t rdn1, size_t rdn2, void *arg) {
MIR_context_t ctx = arg;
reg_desc_t *addr = VARR_ADDR (reg_desc_t, reg_descs);
return addr[rdn1].reg == addr[rdn2].reg && addr[rdn1].func == addr[rdn2].func;
}
static htab_hash_t reg2rdn_hash (size_t rdn, void *arg) {
MIR_context_t ctx = arg;
reg_desc_t *addr = VARR_ADDR (reg_desc_t, reg_descs);
return mir_hash_finish (
mir_hash_step (mir_hash_step (mir_hash_init (0), (uint64_t) addr[rdn].func), addr[rdn].reg));
}
static void reg_init (MIR_context_t ctx) {
reg_desc_t rd = {0, NULL, MIR_T_I64, 0};
if ((ctx->reg_ctx = malloc (sizeof (struct reg_ctx))) == NULL)
(*error_func) (MIR_alloc_error, "Not enough memory for ctx");
VARR_CREATE (reg_desc_t, reg_descs, 300);
VARR_PUSH (reg_desc_t, reg_descs, rd); /* for 0 reg */
HTAB_CREATE (size_t, namenum2rdn_tab, 300, namenum2rdn_hash, namenum2rdn_eq, ctx);
HTAB_CREATE (size_t, reg2rdn_tab, 300, reg2rdn_hash, reg2rdn_eq, ctx);
}
static MIR_reg_t create_func_reg (MIR_context_t ctx, MIR_func_t func, const char *name,
MIR_reg_t reg, MIR_type_t type, int any_p) {
reg_desc_t rd;
size_t rdn, tab_rdn;
int htab_res;
if (!any_p && _MIR_reserved_name_p (ctx, name))
(*error_func) (MIR_reserved_name_error, "redefining a reserved name %s", name);
rd.name_num = string_store (ctx, &strings, &string_tab, (MIR_str_t){strlen (name) + 1, name}).num;
rd.func = func;
rd.type = type;
rd.reg = reg; /* 0 is reserved */
rdn = VARR_LENGTH (reg_desc_t, reg_descs);
VARR_PUSH (reg_desc_t, reg_descs, rd);
if (HTAB_DO (size_t, namenum2rdn_tab, rdn, HTAB_FIND, tab_rdn)) {
VARR_POP (reg_desc_t, reg_descs);
(*error_func) (MIR_repeated_decl_error, "Repeated reg declaration %s", name);
}
htab_res = HTAB_DO (size_t, namenum2rdn_tab, rdn, HTAB_INSERT, tab_rdn);
mir_assert (!htab_res);
htab_res = HTAB_DO (size_t, reg2rdn_tab, rdn, HTAB_INSERT, tab_rdn);
mir_assert (!htab_res);
return reg;
}
static void reg_finish (MIR_context_t ctx) {
VARR_DESTROY (reg_desc_t, reg_descs);
HTAB_DESTROY (size_t, namenum2rdn_tab);
HTAB_DESTROY (size_t, reg2rdn_tab);
free (ctx->reg_ctx);
ctx->reg_ctx = NULL;
}
/* New Page */
static void push_data (MIR_context_t ctx, uint8_t *els, size_t size) {
for (size_t i = 0; i < size; i++) VARR_PUSH (uint8_t, temp_data, els[i]);
}
const char *MIR_item_name (MIR_context_t ctx, MIR_item_t item) {
mir_assert (item != NULL);
return (item->item_type == MIR_func_item
? item->u.func->name
: item->item_type == MIR_proto_item
? item->u.proto->name
: item->item_type == MIR_import_item
? item->u.import_id
: item->item_type == MIR_export_item
? item->u.export_id
: item->item_type == MIR_forward_item
? item->u.forward_id
: item->item_type == MIR_bss_item
? item->u.bss->name
: item->item_type == MIR_data_item
? item->u.data->name
: item->item_type == MIR_ref_data_item
? item->u.ref_data->name
: item->u.expr_data->name);
}
#if !MIR_NO_IO
static void io_init (MIR_context_t ctx);
static void io_finish (MIR_context_t ctx);
#endif
#if !MIR_NO_SCAN
static void scan_init (MIR_context_t ctx);
static void scan_finish (MIR_context_t ctx);
#endif
static void vn_init (MIR_context_t ctx);
static void vn_finish (MIR_context_t ctx);
MIR_error_func_t MIR_get_error_func (MIR_context_t ctx) { return error_func; }
void MIR_set_error_func (MIR_context_t ctx, MIR_error_func_t func) { error_func = func; }
static htab_hash_t item_hash (MIR_item_t it, void *arg) {
return mir_hash_finish (
mir_hash_step (mir_hash_step (mir_hash_init (28), (uint64_t) MIR_item_name (NULL, it)),
(uint64_t) it->module));
}
static int item_eq (MIR_item_t it1, MIR_item_t it2, void *arg) {
return it1->module == it2->module && MIR_item_name (NULL, it1) == MIR_item_name (NULL, it2);
}
static MIR_item_t find_item (MIR_context_t ctx, const char *name, MIR_module_t module) {
MIR_item_t tab_item;
struct MIR_item item_s;
struct MIR_func func_s;
item_s.item_type = MIR_func_item;
func_s.name = name;
item_s.module = module;
item_s.u.func = &func_s;
if (HTAB_DO (MIR_item_t, module_item_tab, &item_s, HTAB_FIND, tab_item)) return tab_item;
return NULL;
}
static void init_module (MIR_context_t ctx, MIR_module_t m, const char *name) {
m->data = NULL;
m->last_temp_item_num = 0;
m->name = string_store (ctx, &strings, &string_tab, (MIR_str_t){strlen (name) + 1, name}).str.s;
DLIST_INIT (MIR_item_t, m->items);
}
static void code_init (MIR_context_t ctx);
static void code_finish (MIR_context_t ctx);
MIR_context_t MIR_init (void) {
MIR_context_t ctx;
if ((ctx = malloc (sizeof (struct MIR_context))) == NULL)
default_error (MIR_alloc_error, "Not enough memory for ctx");
ctx->string_ctx = NULL;
ctx->reg_ctx = NULL;
ctx->simplify_ctx = NULL;
ctx->machine_code_ctx = NULL;
ctx->io_ctx = NULL;
ctx->scan_ctx = NULL;
ctx->interp_ctx = NULL;
#ifndef NDEBUG
for (MIR_insn_code_t c = 0; c < MIR_INVALID_INSN; c++) mir_assert (c == insn_descs[c].code);
#endif
error_func = default_error;
curr_module = NULL;
curr_func = NULL;
curr_label_num = 0;
if ((ctx->string_ctx = malloc (sizeof (struct string_ctx))) == NULL)
(*error_func) (MIR_alloc_error, "Not enough memory for ctx");
string_init (&strings, &string_tab);
reg_init (ctx);
VARR_CREATE (MIR_insn_t, temp_insns, 0);
VARR_CREATE (MIR_insn_t, temp_insns2, 0);
VARR_CREATE (MIR_op_t, temp_insn_ops, 0);
VARR_CREATE (MIR_var_t, temp_vars, 0);
VARR_CREATE (MIR_type_t, temp_types, 0);
check_and_prepare_insn_descs (ctx);
DLIST_INIT (MIR_module_t, all_modules);
vn_init (ctx);
VARR_CREATE (MIR_reg_t, inline_reg_map, 256);
VARR_CREATE (char, temp_string, 64);
VARR_CREATE (uint8_t, temp_data, 512);
#if !MIR_NO_IO
io_init (ctx);
#endif
#if !MIR_NO_SCAN
scan_init (ctx);
#endif
VARR_CREATE (MIR_module_t, modules_to_link, 0);
init_module (ctx, &environment_module, ".environment");
HTAB_CREATE (MIR_item_t, module_item_tab, 512, item_hash, item_eq, NULL);
code_init (ctx);
interp_init (ctx);
inlined_calls = inline_insns_before = inline_insns_after = 0;
return ctx;
}
void MIR_remove_insn (MIR_context_t ctx, MIR_item_t func_item, MIR_insn_t insn) {
mir_assert (func_item != NULL);
if (func_item->item_type != MIR_func_item)
(*error_func) (MIR_wrong_param_value_error, "MIR_remove_insn: wrong func item");
DLIST_REMOVE (MIR_insn_t, func_item->u.func->insns, insn);
free (insn);
}
static void remove_func_insns (MIR_context_t ctx, MIR_item_t func_item,
DLIST (MIR_insn_t) * insns) {
MIR_insn_t insn;
mir_assert (func_item->item_type == MIR_func_item);
while ((insn = DLIST_HEAD (MIR_insn_t, *insns)) != NULL) {
MIR_remove_insn (ctx, func_item, insn);
}
}
static void remove_item (MIR_context_t ctx, MIR_item_t item) {
MIR_module_t module = item->module;
switch (item->item_type) {
case MIR_func_item:
remove_func_insns (ctx, item, &item->u.func->insns);
remove_func_insns (ctx, item, &item->u.func->original_insns);
VARR_DESTROY (MIR_var_t, item->u.func->vars);
free (item->u.func);
break;
case MIR_proto_item:
VARR_DESTROY (MIR_var_t, item->u.proto->args);
free (item->u.proto);
break;
case MIR_import_item:
case MIR_export_item:
case MIR_forward_item: break;
case MIR_data_item:
if (item->addr != NULL && item->section_head_p) free (item->addr);
free (item->u.data);
break;
case MIR_ref_data_item:
if (item->addr != NULL && item->section_head_p) free (item->addr);
free (item->u.ref_data);
break;
case MIR_expr_data_item:
if (item->addr != NULL && item->section_head_p) free (item->addr);
free (item->u.expr_data);
break;
case MIR_bss_item:
if (item->addr != NULL && item->section_head_p) free (item->addr);
free (item->u.bss);
break;
default: mir_assert (FALSE);
}
if (item->data != NULL) free (item->data);
free (item);
}
static void remove_module (MIR_context_t ctx, MIR_module_t module, int free_module_p) {
MIR_item_t item;
while ((item = DLIST_HEAD (MIR_item_t, module->items)) != NULL) {
DLIST_REMOVE (MIR_item_t, module->items, item);
remove_item (ctx, item);
}
if (module->data != NULL) free (module->data);
if (free_module_p) free (module);
}
static void remove_all_modules (MIR_context_t ctx) {
MIR_module_t module;
while ((module = DLIST_HEAD (MIR_module_t, all_modules)) != NULL) {
DLIST_REMOVE (MIR_module_t, all_modules, module);
remove_module (ctx, module, TRUE);
}
remove_module (ctx, &environment_module, FALSE);
}
void MIR_finish (MIR_context_t ctx) {
interp_finish (ctx);
remove_all_modules (ctx);
HTAB_DESTROY (MIR_item_t, module_item_tab);
VARR_DESTROY (MIR_module_t, modules_to_link);
#if !MIR_NO_SCAN
scan_finish (ctx);
#endif
#if !MIR_NO_IO
io_finish (ctx);
#endif
VARR_DESTROY (uint8_t, temp_data);
VARR_DESTROY (char, temp_string);
VARR_DESTROY (MIR_reg_t, inline_reg_map);
reg_finish (ctx);
string_finish (&strings, &string_tab);
vn_finish (ctx);
VARR_DESTROY (MIR_var_t, temp_vars);
VARR_DESTROY (size_t, insn_nops);
VARR_DESTROY (MIR_op_t, temp_insn_ops);
VARR_DESTROY (MIR_insn_t, temp_insns2);
VARR_DESTROY (MIR_insn_t, temp_insns);
VARR_DESTROY (MIR_type_t, temp_types);
code_finish (ctx);
if (curr_func != NULL)
(*error_func) (MIR_finish_error, "finish when function %s is not finished", curr_func->name);
if (curr_module != NULL)
(*error_func) (MIR_finish_error, "finish when module %s is not finished", curr_module->name);
#if 0
if (inlined_calls != 0)
fprintf (stderr, "inlined calls = %lu, insns before = %lu, insns_after = %lu, ratio = %.2f\n",
inlined_calls, inline_insns_before, inline_insns_after,
(double) inline_insns_after / inline_insns_before);
#endif
free (ctx->string_ctx);
free (ctx);
ctx = NULL;
}
MIR_module_t MIR_new_module (MIR_context_t ctx, const char *name) {
if (curr_module != NULL)
(*error_func) (MIR_nested_module_error,
"Creating module when previous module %s is not finished", curr_module->name);
if ((curr_module = malloc (sizeof (struct MIR_module))) == NULL)
(*error_func) (MIR_alloc_error, "Not enough memory for module %s creation", name);
init_module (ctx, curr_module, name);
DLIST_APPEND (MIR_module_t, all_modules, curr_module);
return curr_module;
}
DLIST (MIR_module_t) * MIR_get_module_list (MIR_context_t ctx) { return &all_modules; }
static const char *type_str (MIR_type_t tp) {
switch (tp) {
case MIR_T_I8: return "i8";
case MIR_T_U8: return "u8";
case MIR_T_I16: return "i16";
case MIR_T_U16: return "u16";
case MIR_T_I32: return "i32";
case MIR_T_U32: return "u32";
case MIR_T_I64: return "i64";
case MIR_T_U64: return "u64";
case MIR_T_F: return "f";
case MIR_T_D: return "d";
case MIR_T_LD: return "ld";
case MIR_T_P: return "p";
case MIR_T_UNDEF: return "undef";
default: return "";
}
}
const char *MIR_type_str (MIR_context_t ctx, MIR_type_t tp) {
const char *str = type_str (tp);
if (strcmp (str, "") == 0)
(*error_func) (MIR_wrong_param_value_error, "MIR_type_str: wrong type");
return str;
}
static const char *mode_str (MIR_op_mode_t mode) {
switch (mode) {
case MIR_OP_REG: return "reg";
case MIR_OP_HARD_REG: return "hard_reg";
case MIR_OP_INT: return "int";
case MIR_OP_UINT: return "uint";
case MIR_OP_FLOAT: return "float";
case MIR_OP_DOUBLE: return "double";
case MIR_OP_LDOUBLE: return "ldouble";
case MIR_OP_REF: return "ref";
case MIR_OP_STR: return "str";
case MIR_OP_MEM: return "mem";
case MIR_OP_HARD_REG_MEM: return "hard_reg_mem";
case MIR_OP_LABEL: return "label";
case MIR_OP_BOUND: return "bound";
case MIR_OP_UNDEF: return "undef";
default: return "";
}
}
static MIR_item_t add_item (MIR_context_t ctx, MIR_item_t item) {
int replace_p;
MIR_item_t tab_item;
if ((tab_item = find_item (ctx, MIR_item_name (ctx, item), item->module)) == NULL) {
DLIST_APPEND (MIR_item_t, curr_module->items, item);
HTAB_DO (MIR_item_t, module_item_tab, item, HTAB_INSERT, item);
return item;
}
switch (tab_item->item_type) {
case MIR_import_item:
if (item->item_type != MIR_import_item)
(*error_func) (MIR_import_export_error,
"existing module definition %s already defined as import",
tab_item->u.import_id);
item = tab_item;
break;
case MIR_export_item:
case MIR_forward_item:
replace_p = FALSE;
if (item->item_type == MIR_import_item) {
(*error_func) (MIR_import_export_error, "export/forward of import %s", item->u.import_id);
} else if (item->item_type != MIR_export_item && item->item_type != MIR_forward_item) {
replace_p = TRUE;
DLIST_APPEND (MIR_item_t, curr_module->items, item);
} else {
if (tab_item->item_type == item->item_type)
item = tab_item;
else
DLIST_APPEND (MIR_item_t, curr_module->items, item);
if (item->item_type == MIR_export_item && tab_item->item_type == MIR_forward_item)
replace_p = TRUE;
}
if (replace_p) { /* replace forward by export or export/forward by its definition: */
tab_item->ref_def = item;
if (tab_item->item_type == MIR_export_item) item->export_p = TRUE;
HTAB_DO (MIR_item_t, module_item_tab, tab_item, HTAB_DELETE, tab_item);
HTAB_DO (MIR_item_t, module_item_tab, item, HTAB_INSERT, tab_item);
mir_assert (item == tab_item);
}
break;
case MIR_proto_item:
(*error_func) (MIR_repeated_decl_error, "item %s was already defined as proto",
tab_item->u.proto->name);
break;
case MIR_bss_item:
case MIR_data_item:
case MIR_ref_data_item:
case MIR_expr_data_item:
case MIR_func_item:
if (item->item_type == MIR_export_item) {
if (tab_item->export_p) {
item = tab_item;
} else { /* just keep one export: */
tab_item->export_p = TRUE;
DLIST_APPEND (MIR_item_t, curr_module->items, item);
item->ref_def = tab_item;
}
} else if (item->item_type == MIR_forward_item) {
DLIST_APPEND (MIR_item_t, curr_module->items, item);
item->ref_def = tab_item;
} else if (item->item_type == MIR_import_item) {
(*error_func) (MIR_import_export_error, "import of local definition %s", item->u.import_id);
} else {
(*error_func) (MIR_repeated_decl_error, "Repeated item declaration %s",
MIR_item_name (ctx, item));
}
break;
default: mir_assert (FALSE);
}
return item;
}
static MIR_item_t create_item (MIR_context_t ctx, MIR_item_type_t item_type,
const char *item_name) {
MIR_item_t item;
if (curr_module == NULL) (*error_func) (MIR_no_module_error, "%s outside module", item_name);
if ((item = malloc (sizeof (struct MIR_item))) == NULL)
(*error_func) (MIR_alloc_error, "Not enough memory for creation of item %s", item_name);
item->data = NULL;
item->module = curr_module;
item->item_type = item_type;
item->ref_def = NULL;
item->export_p = FALSE;
item->section_head_p = FALSE;
item->addr = NULL;
return item;
}
static MIR_item_t new_export_import_forward (MIR_context_t ctx, const char *name,
MIR_item_type_t item_type, const char *item_name,
int create_only_p) {
MIR_item_t item, tab_item;
const char *uniq_name;
item = create_item (ctx, item_type, item_name);
uniq_name = string_store (ctx, &strings, &string_tab, (MIR_str_t){strlen (name) + 1, name}).str.s;
if (item_type == MIR_export_item)
item->u.export_id = uniq_name;
else if (item_type == MIR_import_item)
item->u.import_id = uniq_name;
else
item->u.forward_id = uniq_name;
if (create_only_p) return item;
if ((tab_item = add_item (ctx, item)) != item) {
free (item);
item = tab_item;
}
return item;
}
MIR_item_t MIR_new_export (MIR_context_t ctx, const char *name) {
return new_export_import_forward (ctx, name, MIR_export_item, "export", FALSE);
}
MIR_item_t MIR_new_import (MIR_context_t ctx, const char *name) {
return new_export_import_forward (ctx, name, MIR_import_item, "import", FALSE);
}
MIR_item_t MIR_new_forward (MIR_context_t ctx, const char *name) {
return new_export_import_forward (ctx, name, MIR_forward_item, "forward", FALSE);
}
MIR_item_t MIR_new_bss (MIR_context_t ctx, const char *name, size_t len) {
MIR_item_t tab_item, item = create_item (ctx, MIR_bss_item, "bss");
item->u.bss = malloc (sizeof (struct MIR_bss));
if (item->u.bss == NULL) {
free (item);
(*error_func) (MIR_alloc_error, "Not enough memory for creation of bss %s", name);
}
if (name != NULL)
name = string_store (ctx, &strings, &string_tab, (MIR_str_t){strlen (name) + 1, name}).str.s;
item->u.bss->name = name;
item->u.bss->len = len;
if (name == NULL) {
DLIST_APPEND (MIR_item_t, curr_module->items, item);
} else if ((tab_item = add_item (ctx, item)) != item) {
free (item);
item = tab_item;
}
return item;
}
size_t _MIR_type_size (MIR_context_t ctx, MIR_type_t type) {
switch (type) {
case MIR_T_I8: return sizeof (int8_t);
case MIR_T_U8: return sizeof (uint8_t);
case MIR_T_I16: return sizeof (int16_t);
case MIR_T_U16: return sizeof (uint16_t);
case MIR_T_I32: return sizeof (int32_t);
case MIR_T_U32: return sizeof (uint32_t);
case MIR_T_I64: return sizeof (int64_t);
case MIR_T_U64: return sizeof (uint64_t);
case MIR_T_F: return sizeof (float);
case MIR_T_D: return sizeof (double);
case MIR_T_LD: return sizeof (long double);
case MIR_T_P: return sizeof (void *);
default: mir_assert (FALSE); return 1;
}
}
MIR_item_t MIR_new_data (MIR_context_t ctx, const char *name, MIR_type_t el_type, size_t nel,
const void *els) {
MIR_item_t tab_item, item = create_item (ctx, MIR_data_item, "data");
MIR_data_t data;
size_t el_len = _MIR_type_size (ctx, el_type);
item->u.data = data = malloc (sizeof (struct MIR_data) + el_len * nel);
if (data == NULL) {
free (item);
(*error_func) (MIR_alloc_error, "Not enough memory for creation of data %s",
name == NULL ? "" : name);
}
if (name != NULL)
name = string_store (ctx, &strings, &string_tab, (MIR_str_t){strlen (name) + 1, name}).str.s;
data->name = name;
if (name == NULL) {
DLIST_APPEND (MIR_item_t, curr_module->items, item);
} else if ((tab_item = add_item (ctx, item)) != item) {
free (item);
item = tab_item;
}
data->el_type = el_type;
data->nel = nel;
memcpy (data->u.els, els, el_len * nel);
return item;
}
MIR_item_t MIR_new_string_data (MIR_context_t ctx, const char *name, MIR_str_t str) {
return MIR_new_data (ctx, name, MIR_T_U8, str.len, str.s);
}
MIR_item_t MIR_new_ref_data (MIR_context_t ctx, const char *name, MIR_item_t ref_item,
int64_t disp) {