X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=tools%2Ftranslate.c;h=50af3bfbd5d61951180e76249512808fb072e7d4;hb=0a2c6da1fa73197c1b9f75e74650ea98e3ad4ea1;hp=673e4ba5cc71e21f6686733e1454978ca8d45b69;hpb=578603650c721811eb0a4747329e3854f171ce37;p=ia32rtools.git diff --git a/tools/translate.c b/tools/translate.c index 673e4ba..50af3bf 100644 --- a/tools/translate.c +++ b/tools/translate.c @@ -19,6 +19,7 @@ #include #include #include +#include #include #include "my_assert.h" @@ -284,8 +285,8 @@ enum sct_func_attr { enum x87_const { X87_CONST_1 = 1, - X87_CONST_2T, - X87_CONST_2E, + X87_CONST_L2T, + X87_CONST_L2E, X87_CONST_PI, X87_CONST_LG2, X87_CONST_LN2, @@ -1084,6 +1085,10 @@ static const struct { { "fld", OP_FLD, 1, 1, OPF_FPUSH }, { "fild", OP_FILD, 1, 1, OPF_FPUSH|OPF_FINT }, { "fld1", OP_FLDc, 0, 0, OPF_FPUSH }, + { "fldl2t", OP_FLDc, 0, 0, OPF_FPUSH }, + { "fldl2e", OP_FLDc, 0, 0, OPF_FPUSH }, + { "fldpi", OP_FLDc, 0, 0, OPF_FPUSH }, + { "fldlg2", OP_FLDc, 0, 0, OPF_FPUSH }, { "fldln2", OP_FLDc, 0, 0, OPF_FPUSH }, { "fldz", OP_FLDc, 0, 0, OPF_FPUSH }, { "fst", OP_FST, 1, 1, 0 }, @@ -1418,12 +1423,20 @@ static void parse_op(struct parsed_op *op, char words[16][256], int wordc) op->regmask_dst |= mxST0; if (IS(words[op_w] + 3, "1")) op->operand[0].val = X87_CONST_1; + else if (IS(words[op_w] + 3, "l2t")) + op->operand[0].val = X87_CONST_L2T; + else if (IS(words[op_w] + 3, "l2e")) + op->operand[0].val = X87_CONST_L2E; + else if (IS(words[op_w] + 3, "pi")) + op->operand[0].val = X87_CONST_PI; + else if (IS(words[op_w] + 3, "lg2")) + op->operand[0].val = X87_CONST_LG2; else if (IS(words[op_w] + 3, "ln2")) op->operand[0].val = X87_CONST_LN2; else if (IS(words[op_w] + 3, "z")) op->operand[0].val = X87_CONST_Z; else - aerr("TODO\n"); + aerr("fld what?\n"); break; case OP_FST: @@ -2342,11 +2355,20 @@ static char *out_opr_float(char *buf, size_t buf_size, { const char *cast = NULL; char tmp[256]; + union { + float f; + int i; + } u; switch (popr->type) { case OPT_REG: - if (popr->reg < xST0 || popr->reg > xST7) - ferr(po, "bad reg: %d\n", popr->reg); + if (popr->reg < xST0 || popr->reg > xST7) { + // func arg + ferr_assert(po, po->op == OP_PUSH); + ferr_assert(po, popr->lmod == OPLM_DWORD); + snprintf(buf, buf_size, "*(float *)&%s", opr_reg_p(po, popr)); + break; + } if (need_float_stack) { if (popr->reg == xST0) @@ -2383,6 +2405,16 @@ static char *out_opr_float(char *buf, size_t buf_size, snprintf(buf, buf_size, "*(%s *)(%s)", cast, tmp); break; + case OPT_CONST: + // only for func float args pushes + ferr_assert(po, po->op == OP_PUSH); + u.i = po->operand[0].val; + if (ceilf(u.f) == u.f) + snprintf(buf, buf_size, "%.1ff", u.f); + else + snprintf(buf, buf_size, "%.8ff", u.f); + break; + default: ferr(po, "invalid float type: %d\n", popr->type); } @@ -3787,8 +3819,12 @@ static void resolve_branches_parse_calls(int opcnt) else if (po->operand[0].type == OPT_LABEL) { tmpname = opr_name(po, 0); - if (IS_START(tmpname, "loc_")) - ferr(po, "call to loc_*\n"); + if (IS_START(tmpname, "loc_")) { + if (!g_seh_found) + ferr(po, "call to loc_*\n"); + // eliminate_seh() must take care of it + continue; + } if (IS(tmpname, "__alloca_probe")) continue; if (IS(tmpname, "__SEH_prolog")) { @@ -3890,6 +3926,7 @@ tailcall: static int resolve_origin(int i, const struct parsed_opr *opr, int magic, int *op_i, int *is_caller); +static void set_label(int i, const char *name); static void eliminate_seh_writes(int opcnt) { @@ -3917,6 +3954,87 @@ static void eliminate_seh_writes(int opcnt) } } +static void eliminate_seh_finally(int opcnt) +{ + const char *target_name = NULL; + const char *return_name = NULL; + int exits[MAX_EXITS]; + int exit_count = 0; + int call_i = -1; + int target_i = -1; + int return_i = -1; + int tgend_i = -1; + int i; + + for (i = 0; i < opcnt; i++) { + if (ops[i].op != OP_CALL) + continue; + if (!IS_START(opr_name(&ops[i], 0), "loc_")) + continue; + if (target_name != NULL) + ferr(&ops[i], "multiple finally calls? (last was %s)\n", + target_name); + target_name = opr_name(&ops[i], 0); + call_i = i; + + if (g_labels[i + 1] == NULL) + set_label(i + 1, "seh_fin_done"); + return_name = g_labels[i + 1]; + return_i = i + 1; + } + + if (call_i == -1) + // no finally block + return; + + // find finally code (bt_i is not set because it's call) + for (i = 0; i < opcnt; i++) { + if (g_labels[i] == NULL) + continue; + if (!IS(g_labels[i], target_name)) + continue; + + ferr_assert(&ops[i], target_i == -1); + target_i = i; + } + ferr_assert(&ops[0], target_i != -1); + + find_reachable_exits(target_i, opcnt, target_i + opcnt * 24, + exits, &exit_count); + ferr_assert(&ops[target_i], exit_count == 1); + ferr_assert(&ops[target_i], ops[exits[0]].op == OP_RET); + tgend_i = exits[0]; + + // convert to jumps, link + ops[call_i].op = OP_JMP; + ops[call_i].bt_i = target_i; + add_label_ref(&g_label_refs[target_i], call_i); + + ops[tgend_i].op = OP_JMP; + ops[tgend_i].flags &= ~OPF_TAIL; + ops[tgend_i].flags |= OPF_JMP; + ops[tgend_i].bt_i = return_i; + ops[tgend_i].operand_cnt = 1; + ops[tgend_i].operand[0].type = OPT_LABEL; + snprintf(ops[tgend_i].operand[0].name, NAMELEN, "%s", return_name); + add_label_ref(&g_label_refs[return_i], tgend_i); + + // rm seh finally entry code + for (i = target_i - 1; i >= 0; i--) { + if (g_labels[i] != NULL && g_label_refs[i].i != -1) + return; + if (ops[i].flags & OPF_CJMP) + return; + if (ops[i].flags & (OPF_JMP | OPF_TAIL)) + break; + } + for (i = target_i - 1; i >= 0; i--) { + if (ops[i].flags & (OPF_JMP | OPF_TAIL)) + break; + ops[i].flags |= OPF_RMD | OPF_DONE | OPF_NOREGS; + } +} + static void eliminate_seh(int opcnt) { int i, j, k, ret; @@ -3959,6 +4077,7 @@ static void eliminate_seh(int opcnt) } eliminate_seh_writes(opcnt); + eliminate_seh_finally(opcnt); } static void eliminate_seh_calls(int opcnt) @@ -3997,6 +4116,7 @@ static void eliminate_seh_calls(int opcnt) ferr_assert(ops, epilog_found); eliminate_seh_writes(opcnt); + eliminate_seh_finally(opcnt); } static int scan_prologue(int i, int opcnt, int *ecx_push, int *esp_sub) @@ -4906,6 +5026,37 @@ out: return pp; } +static void mark_float_arg(struct parsed_op *po, + struct parsed_proto *pp, int arg, int *regmask_ffca) +{ + po->p_argnext = -1; + po->p_argnum = arg + 1; + ferr_assert(po, pp->arg[arg].datap == NULL); + pp->arg[arg].datap = po; + po->flags |= OPF_DONE | OPF_FARGNR | OPF_FARG; + if (regmask_ffca != NULL) + *regmask_ffca |= 1 << arg; +} + +static int check_for_stp(int i, int i_to) +{ + struct parsed_op *po; + + for (; i < i_to; i++) { + po = &ops[i]; + if (po->op == OP_FST) + return i; + if (g_labels[i] != NULL || (po->flags & OPF_JMP)) + return -1; + if (po->op == OP_CALL || po->op == OP_PUSH || po->op == OP_POP) + return -1; + if (po->op == OP_ADD && po->operand[0].reg == xSP) + return -1; + } + + return -1; +} + static int collect_call_args_no_push(int i, struct parsed_proto *pp, int *regmask_ffca) { @@ -4939,13 +5090,7 @@ static int collect_call_args_no_push(int i, struct parsed_proto *pp, } arg = base_arg + offset / 4; - po->p_argnext = -1; - po->p_argnum = arg + 1; - ferr_assert(po, pp->arg[arg].datap == NULL); - pp->arg[arg].datap = po; - po->flags |= OPF_DONE | OPF_FARGNR | OPF_FARG; - if (regmask_ffca != NULL) - *regmask_ffca |= 1 << arg; + mark_float_arg(po, pp, arg, regmask_ffca); } else if (po->op == OP_SUB && po->operand[0].reg == xSP && po->operand[1].type == OPT_CONST) @@ -4972,7 +5117,8 @@ static int collect_call_args_early(int i, struct parsed_proto *pp, { struct parsed_op *po; int arg, ret; - int j; + int offset; + int j, k; for (arg = 0; arg < pp->argc; arg++) if (pp->arg[arg].reg == NULL) @@ -5040,10 +5186,24 @@ static int collect_call_args_early(int i, struct parsed_proto *pp, { ops[j].p_argnext = -1; ferr_assert(&ops[j], pp->arg[arg].datap == NULL); - pp->arg[arg].datap = &ops[j]; - if (regmask != NULL && ops[j].operand[0].type == OPT_REG) - *regmask |= 1 << ops[j].operand[0].reg; + k = check_for_stp(j + 1, i); + if (k != -1) { + // push ecx; fstp dword ptr [esp] + ret = parse_stack_esp_offset(&ops[k], + ops[k].operand[0].name, &offset); + if (ret == 0 && offset == 0) { + if (!pp->arg[arg].type.is_float) + ferr(&ops[i], "arg %d should be float\n", arg + 1); + mark_float_arg(&ops[k], pp, arg, regmask_ffca); + } + } + + if (pp->arg[arg].datap == NULL) { + pp->arg[arg].datap = &ops[j]; + if (regmask != NULL && ops[j].operand[0].type == OPT_REG) + *regmask |= 1 << ops[j].operand[0].reg; + } ops[j].flags |= OPF_RMD | OPF_DONE | OPF_FARGNR | OPF_FARG; ops[j].flags &= ~OPF_RSAVE; @@ -7300,6 +7460,7 @@ static void gen_func(FILE *fout, FILE *fhdr, const char *funcn, int opcnt) else if (pp->arg[arg].type.is_64bit) { ferr_assert(po, tmp_op->p_argpass == 0); ferr_assert(po, !pp->arg[arg].is_saved); + ferr_assert(po, !pp->arg[arg].type.is_float); ferr_assert(po, cast[0] == 0); out_src_opr(buf1, sizeof(buf1), tmp_op, &tmp_op->operand[0], cast, 0); @@ -7311,14 +7472,22 @@ static void gen_func(FILE *fout, FILE *fhdr, const char *funcn, int opcnt) buf2, buf1); } else if (tmp_op->p_argpass != 0) { + ferr_assert(po, !pp->arg[arg].type.is_float); fprintf(fout, "a%d", tmp_op->p_argpass); } else if (pp->arg[arg].is_saved) { ferr_assert(po, tmp_op->p_argnum > 0); + ferr_assert(po, !pp->arg[arg].type.is_float); fprintf(fout, "%s%s", cast, saved_arg_name(buf1, sizeof(buf1), tmp_op->p_arggrp, tmp_op->p_argnum)); } + else if (pp->arg[arg].type.is_float) { + ferr_assert(po, !pp->arg[arg].type.is_64bit); + fprintf(fout, "%s", + out_src_opr_float(buf1, sizeof(buf1), + tmp_op, &tmp_op->operand[0], need_float_stack)); + } else { fprintf(fout, "%s", out_src_opr(buf1, sizeof(buf1), @@ -7533,9 +7702,13 @@ static void gen_func(FILE *fout, FILE *fhdr, const char *funcn, int opcnt) } switch (po->operand[0].val) { case X87_CONST_1: fprintf(fout, "1.0;"); break; - case X87_CONST_LN2: fprintf(fout, "0.693147180559945;"); break; + case X87_CONST_L2T: fprintf(fout, "3.321928094887362;"); break; + case X87_CONST_L2E: fprintf(fout, "M_LOG2E;"); break; + case X87_CONST_PI: fprintf(fout, "M_PI;"); break; + case X87_CONST_LG2: fprintf(fout, "0.301029995663981;"); break; + case X87_CONST_LN2: fprintf(fout, "M_LN2;"); break; case X87_CONST_Z: fprintf(fout, "0.0;"); break; - default: ferr(po, "TODO\n"); break; + default: ferr_assert(po, 0); break; } break; @@ -8309,8 +8482,11 @@ static void gen_hdr(const char *funcn, int opcnt) // noreturn OS functions break; } - if (ops[i].op != OP_NOP && ops[i].op != OPP_ABORT) + if (!(ops[i].flags & OPF_RMD) + && ops[i].op != OP_NOP && ops[i].op != OPP_ABORT) + { ferr(&ops[i], "unreachable code\n"); + } } for (i = 0; i < g_eqcnt; i++) {