int m_zwithdraw(void) { oprtype tmparg; triple *ref; DCL_THREADGBL_ACCESS; SETUP_THREADGBL_ACCESS; switch (TREF(window_token)) { case TK_IDENT: if (!lvn(&tmparg,OC_SRCHINDX,0)) return FALSE; ref = newtriple(OC_LVZWITHDRAW); ref->operand[0] = tmparg; break; case TK_CIRCUMFLEX: if (!gvn()) return FALSE; ref = newtriple(OC_GVZWITHDRAW); break; case TK_ATSIGN: if (!indirection(&tmparg)) return FALSE; ref = maketriple(OC_COMMARG); ref->operand[0] = tmparg; ref->operand[1] = put_ilit((mint) indir_zwithdraw); ins_triple(ref); return TRUE; default: stx_error(ERR_VAREXPECTED); return FALSE; } return TRUE; }
int m_ztrigger(void) { # ifdef GTM_TRIGGER oprtype tmparg; triple *ref; error_def(ERR_GBLEXPECTED); switch (window_token) { case TK_CIRCUMFLEX: if (!gvn()) return FALSE; ref = newtriple(OC_ZTRIGGER); break; case TK_ATSIGN: if (!indirection(&tmparg)) return FALSE; ref = maketriple(OC_COMMARG); ref->operand[0] = tmparg; ref->operand[1] = put_ilit((mint)indir_ztrigger); ins_triple(ref); return TRUE; default: stx_error(ERR_GBLEXPECTED); return FALSE; } return TRUE; # else return FALSE; # endif }
void op_indrzshow(mval *s1,mval *s2) { mstr object; bool rval; oprtype v; triple *src, *r, *outtype, *lvar; error_def(ERR_VAREXPECTED); error_def(ERR_INDMAXNEST); comp_init(&s2->str); src = maketriple(OC_IGETSRC); ins_triple(src); switch(window_token) { case TK_CIRCUMFLEX: if (rval = gvn()) { r = maketriple(OC_ZSHOW); outtype = newtriple(OC_PARAMETER); r->operand[1] = put_tref(outtype); r->operand[0] = put_tref(src); outtype->operand[0] = put_ilit(ZSHOW_GLOBAL); ins_triple(r); } break; case TK_IDENT: if (rval = lvn(&v, OC_PUTINDX, 0)) { r = maketriple(OC_ZSHOWLOC); outtype = newtriple(OC_PARAMETER); r->operand[1] = put_tref(outtype); r->operand[0] = put_tref(src); lvar = newtriple(OC_PARAMETER); outtype->operand[1] = put_tref(lvar); lvar->operand[0] = v; outtype->operand[0] = put_ilit(ZSHOW_LOCAL); ins_triple(r); } break; case TK_ATSIGN: if (rval = indirection(&v)) { r = newtriple(OC_INDRZSHOW); r->operand[0] = put_tref(src); r->operand[1] = v; } break; default: stx_error(ERR_VAREXPECTED); break; } if (comp_fini(rval, &object, OC_RET, 0, s2->str.len)) { cache_put(indir_zshow, &s2->str, &object); *ind_source_sp++ = s1; if (ind_source_sp >= ind_source_top) rts_error(VARLSTCNT(1) ERR_INDMAXNEST); comp_indr(&object); } return; }
int f_zprevious(oprtype *a, opctype op) { triple *oldchain, *r; save_se save_state; DCL_THREADGBL_ACCESS; SETUP_THREADGBL_ACCESS; r = maketriple(op); switch (TREF(window_token)) { case TK_IDENT: if (TK_LPAREN != TREF(director_token)) { r->opcode = OC_FNLVPRVNAME; r->operand[0] = put_str((TREF(window_ident)).addr, (TREF(window_ident)).len); ins_triple(r); advancewindow(); break; } if (!lvn(&(r->operand[0]), OC_SRCHINDX, r)) return FALSE; ins_triple(r); break; case TK_CIRCUMFLEX: if (!gvn()) return FALSE; r->opcode = OC_ZPREVIOUS; ins_triple(r); break; case TK_ATSIGN: if (SHIFT_SIDE_EFFECTS) { START_GVBIND_CHAIN(&save_state, oldchain); if (!indirection(&(r->operand[0]))) { setcurtchain(oldchain); return FALSE; } r->operand[1] = put_ilit((mint)indir_fnzprevious); ins_triple(r); PLACE_GVBIND_CHAIN(&save_state, oldchain); } else { if (!indirection(&(r->operand[0]))) return FALSE; r->operand[1] = put_ilit((mint)indir_fnzprevious); ins_triple(r); } r->opcode = OC_INDFUN; break; default: stx_error(ERR_VAREXPECTED); return FALSE; } *a = put_tref(r); return TRUE; }
int f_data(oprtype *a, opctype op) { triple *oldchain, *r, tmpchain, *triptr; DCL_THREADGBL_ACCESS; SETUP_THREADGBL_ACCESS; assert(OC_FNDATA == op || OC_FNZDATA == op); r = maketriple(op); switch (TREF(window_token)) { case TK_IDENT: if (!lvn(&(r->operand[0]), OC_SRCHINDX, 0)) return FALSE; ins_triple(r); break; case TK_CIRCUMFLEX: if (!gvn()) return FALSE; r->opcode = OC_GVDATA; ins_triple(r); break; case TK_ATSIGN: TREF(saw_side_effect) = TREF(shift_side_effects); if (TREF(shift_side_effects) && (GTM_BOOL == TREF(gtm_fullbool))) { dqinit(&tmpchain, exorder); oldchain = setcurtchain(&tmpchain); if (!indirection(&(r->operand[0]))) { setcurtchain(oldchain); return FALSE; } r->operand[1] = put_ilit((mint)(OC_FNDATA == op ? indir_fndata : indir_fnzdata)); ins_triple(r); newtriple(OC_GVSAVTARG); setcurtchain(oldchain); dqadd(TREF(expr_start), &tmpchain, exorder); TREF(expr_start) = tmpchain.exorder.bl; triptr = newtriple(OC_GVRECTARG); triptr->operand[0] = put_tref(TREF(expr_start)); } else { if (!indirection(&(r->operand[0]))) return FALSE; r->operand[1] = put_ilit((mint)(OC_FNDATA == op ? indir_fndata : indir_fnzdata)); ins_triple(r); } r->opcode = OC_INDFUN; break; default: stx_error(ERR_VAREXPECTED); return FALSE; } *a = put_tref(r); return TRUE; }
int f_get1(oprtype *a, opctype op) { triple *oldchain, *r; save_se save_state; DCL_THREADGBL_ACCESS; SETUP_THREADGBL_ACCESS; r = maketriple(OC_NOOP); /* We'll fill in the opcode later, when we figure out what it is */ switch (TREF(window_token)) { case TK_IDENT: r->opcode = OC_FNGET1; if (!lvn(&r->operand[0], OC_SRCHINDX, 0)) return FALSE; break; case TK_CIRCUMFLEX: r->opcode = OC_FNGVGET1; if (!gvn()) return FALSE; break; case TK_ATSIGN: r->opcode = OC_INDFUN; r->operand[1] = put_ilit((mint)indir_get); if (SHIFT_SIDE_EFFECTS) { /* with short-circuited booleans move indirect processing to expr_start */ START_GVBIND_CHAIN(&save_state, oldchain); if (!indirection(&r->operand[0])) { setcurtchain(oldchain); return FALSE; } ins_triple(r); PLACE_GVBIND_CHAIN(&save_state, oldchain); *a = put_tref(r); return TRUE; } if (!indirection(&(r->operand[0]))) return FALSE; break; default: stx_error(ERR_VAREXPECTED); return FALSE; } ins_triple(r); *a = put_tref(r); return TRUE; }
int m_merge(void) { int type; boolean_t used_glvn_slot; mval mv; opctype put_oc; oprtype mopr, control_slot; triple *obp, *ref, *restart, *s1, *sub, tmpchain; DCL_THREADGBL_ACCESS; SETUP_THREADGBL_ACCESS; used_glvn_slot = FALSE; sub = NULL; restart = newtriple(OC_RESTARTPC); /* Here is where a restart should pick up */ dqinit(&tmpchain, exorder); /* Left Hand Side of EQUAL sign */ switch (TREF(window_token)) { case TK_IDENT: if (!lvn(&mopr, OC_PUTINDX, 0)) return FALSE; if (OC_PUTINDX == mopr.oprval.tref->opcode) { /* we insert left hand side argument into tmpchain. */ sub = mopr.oprval.tref; put_oc = OC_PUTINDX; dqdel(mopr.oprval.tref, exorder); dqins(tmpchain.exorder.bl, exorder, mopr.oprval.tref); } ref = maketriple(OC_MERGE_LVARG); ref->operand[0] = put_ilit(MARG1_LCL); ref->operand[1] = mopr; dqins(tmpchain.exorder.bl, exorder, ref); break; case TK_CIRCUMFLEX: s1 = (TREF(curtchain))->exorder.bl; if (!gvn()) return FALSE; assert(OC_GVRECTARG != (TREF(curtchain))->opcode); /* we count on gvn not having been shifted */ for (sub = (TREF(curtchain))->exorder.bl; sub != s1; sub = sub->exorder.bl) { put_oc = sub->opcode; if (OC_GVNAME == put_oc || OC_GVNAKED == put_oc || OC_GVEXTNAM == put_oc) break; } assert((OC_GVNAME == put_oc) || (OC_GVNAKED == put_oc) || (OC_GVEXTNAM == put_oc)); /* we insert left hand side argument into tmpchain. */ dqdel(sub, exorder); dqins(tmpchain.exorder.bl ,exorder, sub); ref = maketriple(OC_MERGE_GVARG); ref->operand[0] = put_ilit(MARG1_GBL); dqins(tmpchain.exorder.bl, exorder, ref); break; case TK_ATSIGN: if (!indirection(&mopr)) return FALSE; if (TK_EQUAL != TREF(window_token)) { ref = newtriple(OC_COMMARG); ref->operand[0] = mopr; ref->operand[1] = put_ilit((mint) indir_merge); return TRUE; } type = MARG1_LCL | MARG1_GBL; memset(&mv, 0, SIZEOF(mval)); /* Initialize so unused fields don't cause object hash differences */ MV_FORCE_MVAL(&mv, type); MV_FORCE_STRD(&mv); if (TREF(side_effect_handling)) { /* save and restore the variable lookup for true left-to-right evaluation */ used_glvn_slot = TRUE; INSERT_INDSAVGLVN(control_slot, mopr, ANY_SLOT, 0); /* 0 flag to defer global reference */ ref = maketriple(OC_INDMERGE2); ref->operand[0] = control_slot; } else { /* quick and dirty old way */ ref = maketriple(OC_INDMERGE); ref->operand[0] = put_lit(&mv); ref->operand[1] = mopr; } /* we insert left hand side argument into tmpchain. */ dqins(tmpchain.exorder.bl, exorder, ref); break; default: stx_error(ERR_VAREXPECTED); return FALSE; } if (TREF(window_token) != TK_EQUAL) { stx_error(ERR_EQUAL); return FALSE; } advancewindow(); /* Right Hand Side of EQUAL sign */ TREF(temp_subs) = FALSE; switch (TREF(window_token)) { case TK_IDENT: if (!lvn(&mopr, OC_M_SRCHINDX, 0)) return FALSE; ref = newtriple(OC_MERGE_LVARG); ref->operand[0] = put_ilit(MARG2_LCL); ref->operand[1] = mopr; break; case TK_CIRCUMFLEX: if (!gvn()) return FALSE; ref = newtriple(OC_MERGE_GVARG); ref->operand[0] = put_ilit(MARG2_GBL); break; case TK_ATSIGN: TREF(temp_subs) = TRUE; if (!indirection(&mopr)) { stx_error(ERR_VAREXPECTED); return FALSE; } type = MARG2_LCL | MARG2_GBL; memset(&mv, 0, SIZEOF(mval)); /* Initialize so unused fields don't cause object hash differences */ MV_FORCE_MVAL(&mv, type); MV_FORCE_STRD(&mv); ref = maketriple(OC_INDMERGE); ref->operand[0] = put_lit(&mv); ref->operand[1] = mopr; ins_triple(ref); break; default: stx_error(ERR_VAREXPECTED); return FALSE; } /* * Make sure that during runtime right hand side argument is processed first. * This is specially important if global naked variable is used . */ obp = (TREF(curtchain))->exorder.bl; dqadd(obp, &tmpchain, exorder); if (TREF(temp_subs) && TREF(side_effect_handling) && sub) create_temporaries(sub, put_oc); TREF(temp_subs) = FALSE; if (used_glvn_slot) { ref = newtriple(OC_GLVNPOP); ref->operand[0] = control_slot; } ref = newtriple(OC_MERGE); return TRUE; }
int f_order(oprtype *a, opctype op) { boolean_t ok, used_glvn_slot; enum order_dir direction; enum order_obj object; int4 intval; opctype gv_oc; oprtype control_slot, dir_opr, *dir_oprptr, *next_oprptr; short int column; triple *oldchain, *r, *sav_dirref, *sav_gv1, *sav_gvn, *sav_lvn, *sav_ref, *share, *triptr; triple *chain2, *obp, tmpchain2; save_se save_state; DCL_THREADGBL_ACCESS; SETUP_THREADGBL_ACCESS; oldchain = sav_dirref = NULL; /* default to no direction and no shifting indirection */ used_glvn_slot = FALSE; sav_gv1 = TREF(curtchain); r = maketriple(OC_NOOP); /* We'll fill in the opcode later, when we figure out what it is */ switch (TREF(window_token)) { case TK_IDENT: if (TK_LPAREN == TREF(director_token)) { object = LOCAL; ok = lvn(&r->operand[0], OC_SRCHINDX, r); /* 2nd arg causes us to mess below with return from lvn */ } else { object = LOCAL_NAME; ok = TRUE; r->operand[0] = put_str((TREF(window_ident)).addr, (TREF(window_ident)).len); advancewindow(); } next_oprptr = &r->operand[1]; break; case TK_CIRCUMFLEX: object = GLOBAL; ok = gvn(); sav_gvn = (TREF(curtchain))->exorder.bl; next_oprptr = &r->operand[0]; break; case TK_ATSIGN: object = INDIRECT; if (SHIFT_SIDE_EFFECTS) START_GVBIND_CHAIN(&save_state, oldchain); ok = indirection(&r->operand[0]); next_oprptr = &r->operand[1]; break; default: ok = FALSE; break; } if (!ok) { if (NULL != oldchain) setcurtchain(oldchain); stx_error(ERR_VAREXPECTED); return FALSE; } if (TK_COMMA != TREF(window_token)) direction = FORWARD; /* default direction */ else { /* two argument form: ugly logic for direction */ advancewindow(); column = source_column; dir_oprptr = (oprtype *)mcalloc(SIZEOF(oprtype)); dir_opr = put_indr(dir_oprptr); sav_ref = newtriple(OC_GVSAVTARG); DISABLE_SIDE_EFFECT_AT_DEPTH; /* doing this here let's us know specifically if direction had SE threat */ if (EXPR_FAIL == expr(dir_oprptr, MUMPS_EXPR)) { if (NULL != oldchain) setcurtchain(oldchain); return FALSE; } assert(TRIP_REF == dir_oprptr->oprclass); triptr = dir_oprptr->oprval.tref; if (OC_LIT == triptr->opcode) { /* if direction is a literal - pick it up and stop flailing about */ if (MV_IS_TRUEINT(&triptr->operand[0].oprval.mlit->v, &intval) && (1 == intval || -1 == intval)) { direction = (1 == intval) ? FORWARD : BACKWARD; sav_ref->opcode = OC_NOOP; sav_ref = NULL; } else { /* bad direction */ if (NULL != oldchain) setcurtchain(oldchain); stx_error(ERR_ORDER2); return FALSE; } } else { direction = TBD; sav_dirref = newtriple(OC_GVSAVTARG); /* $R reflects direction eval even if we revisit 1st arg */ triptr = newtriple(OC_GVRECTARG); triptr->operand[0] = put_tref(sav_ref); switch (object) { case GLOBAL: /* The direction may have had a side effect, so take copies of subscripts */ *next_oprptr = *dir_oprptr; for (; sav_gvn != sav_gv1; sav_gvn = sav_gvn->exorder.bl) { /* hunt down the gv opcode */ gv_oc = sav_gvn->opcode; if ((OC_GVNAME == gv_oc) || (OC_GVNAKED == gv_oc) || (OC_GVEXTNAM == gv_oc)) break; } assert((OC_GVNAME == gv_oc) || (OC_GVNAKED == gv_oc) || (OC_GVEXTNAM == gv_oc)); TREF(temp_subs) = TRUE; create_temporaries(sav_gvn, gv_oc); break; case LOCAL: /* Additionally need to move srchindx triple to after potential side effect */ triptr = newtriple(OC_PARAMETER); triptr->operand[0] = *next_oprptr; triptr->operand[1] = *(&dir_opr); *next_oprptr = put_tref(triptr); sav_lvn = r->operand[0].oprval.tref; assert((OC_SRCHINDX == sav_lvn->opcode) || (OC_VAR == sav_lvn->opcode)); if (OC_SRCHINDX == sav_lvn->opcode) { dqdel(sav_lvn, exorder); ins_triple(sav_lvn); TREF(temp_subs) = TRUE; create_temporaries(sav_lvn, OC_SRCHINDX); } assert(&r->operand[1] == next_oprptr); assert(TRIP_REF == next_oprptr->oprclass); assert(OC_PARAMETER == next_oprptr->oprval.tref->opcode); assert(TRIP_REF == next_oprptr->oprval.tref->operand[0].oprclass); sav_lvn = next_oprptr->oprval.tref->operand[0].oprval.tref; if ((OC_VAR == sav_lvn->opcode) || (OC_GETINDX == sav_lvn->opcode)) { /* lvn excludes the last subscript from srchindx and attaches it to the "parent" * now we find it is an lvn and needs protection too */ triptr = maketriple(OC_STOTEMP); triptr->operand[0] = put_tref(sav_lvn); dqins(sav_lvn, exorder, triptr); /* NOTE: violation of info hiding */ next_oprptr->oprval.tref->operand[0].oprval.tref = triptr; } break; case INDIRECT: /* Save and restore the variable lookup for true left-to-right evaluation */ *next_oprptr = *dir_oprptr; used_glvn_slot = TRUE; dqinit(&tmpchain2, exorder); chain2 = setcurtchain(&tmpchain2); INSERT_INDSAVGLVN(control_slot, r->operand[0], ANY_SLOT, 1); setcurtchain(chain2); obp = sav_ref->exorder.bl; /* insert before second arg */ dqadd(obp, &tmpchain2, exorder); r->operand[0] = control_slot; break; case LOCAL_NAME: /* left argument is a string - side effect can't screw it up */ *next_oprptr = *dir_oprptr; break; default: assert(FALSE); } ins_triple(r); if (used_glvn_slot) { triptr = newtriple(OC_GLVNPOP); triptr->operand[0] = control_slot; } if (SE_WARN_ON && (TREF(side_effect_base))[TREF(expr_depth)]) ISSUE_SIDEEFFECTEVAL_WARNING(column - 1); DISABLE_SIDE_EFFECT_AT_DEPTH; /* usual side effect processing doesn't work for $ORDER() */ } } if (TBD != direction) ins_triple(r); if (NULL != sav_dirref) { triptr = newtriple(OC_GVRECTARG); triptr->operand[0] = put_tref(sav_dirref); } r->opcode = order_opc[object][direction]; /* finally - the op code */ if (NULL != oldchain) PLACE_GVBIND_CHAIN(&save_state, oldchain); /* shift chain back to "expr_start" */ if (OC_FNLVNAME == r->opcode) *next_oprptr = put_ilit(0); /* Flag not to return aliases with no value */ if (OC_INDFUN == r->opcode) *next_oprptr = put_ilit((mint)((FORWARD == direction) ? indir_fnorder1 : indir_fnzprevious)); *a = put_tref(r); return TRUE; }
void Compilation::build_hir() { CHECK_BAILOUT(); // setup ir CompileLog* log = this->log(); if (log != NULL) { log->begin_head("parse method='%d' ", log->identify(_method)); log->stamp(); log->end_head(); } _hir = new IR(this, method(), osr_bci()); if (log) log->done("parse"); if (!_hir->is_valid()) { bailout("invalid parsing"); return; } #ifndef PRODUCT if (PrintCFGToFile) { CFGPrinter::print_cfg(_hir, "After Generation of HIR", true, false); } #endif #ifndef PRODUCT if (PrintCFG || PrintCFG0) { tty->print_cr("CFG after parsing"); _hir->print(true); } if (PrintIR || PrintIR0 ) { tty->print_cr("IR after parsing"); _hir->print(false); } #endif _hir->verify(); if (UseC1Optimizations) { NEEDS_CLEANUP // optimization PhaseTraceTime timeit(_t_optimize_blocks); _hir->optimize_blocks(); } _hir->verify(); _hir->split_critical_edges(); #ifndef PRODUCT if (PrintCFG || PrintCFG1) { tty->print_cr("CFG after optimizations"); _hir->print(true); } if (PrintIR || PrintIR1 ) { tty->print_cr("IR after optimizations"); _hir->print(false); } #endif _hir->verify(); // compute block ordering for code generation // the control flow must not be changed from here on _hir->compute_code(); if (UseGlobalValueNumbering) { // No resource mark here! LoopInvariantCodeMotion can allocate ValueStack objects. int instructions = Instruction::number_of_instructions(); GlobalValueNumbering gvn(_hir); assert(instructions == Instruction::number_of_instructions(), "shouldn't have created an instructions"); } _hir->verify(); #ifndef PRODUCT if (PrintCFGToFile) { CFGPrinter::print_cfg(_hir, "Before RangeCheckElimination", true, false); } #endif if (RangeCheckElimination) { if (_hir->osr_entry() == NULL) { PhaseTraceTime timeit(_t_rangeCheckElimination); RangeCheckElimination::eliminate(_hir); } } #ifndef PRODUCT if (PrintCFGToFile) { CFGPrinter::print_cfg(_hir, "After RangeCheckElimination", true, false); } #endif if (UseC1Optimizations) { // loop invariant code motion reorders instructions and range // check elimination adds new instructions so do null check // elimination after. NEEDS_CLEANUP // optimization PhaseTraceTime timeit(_t_optimize_null_checks); _hir->eliminate_null_checks(); } _hir->verify(); // compute use counts after global value numbering _hir->compute_use_counts(); #ifndef PRODUCT if (PrintCFG || PrintCFG2) { tty->print_cr("CFG before code generation"); _hir->code()->print(true); } if (PrintIR || PrintIR2 ) { tty->print_cr("IR before code generation"); _hir->code()->print(false, true); } #endif _hir->verify(); }
int m_set(void) { /* Some comment on "parse_warn". It is set to TRUE whenever the parse encounters an invalid setleft target. * Note that even if "parse_warn" is TRUE, we should not return FALSE right away but need to continue the parse * until the end of the current SET command. This way any remaining commands in the current parse line will be * parsed and triples generated for them. This is necessary just in case the currently parsed invalid SET command * does not get executed at runtime (due to postconditionals etc.) * * Some comment on the need for "first_setleft_invalid". This variable is needed only in the * case we encounter an invalid-SVN/invalid-FCN/unsettable-SVN as a target of the SET. We need to evaluate the * right-hand-side of the SET command only if at least one valid setleft target is parsed before an invalid setleft * target is encountered. This is because we still need to execute the valid setlefts at runtime before triggering * a runtime error for the invalid setleft. If the first setleft target is an invalid one, then there is no need * to evaluate the right-hand-side. In fact, in this case, adding triples (corresponding to the right hand side) * to the execution chain could cause problems with emit_code later in the compilation as the destination * for the right hand side triples could now be undefined (for example a valid SVN on the left side of the * SET would have generated an OC_SVPUT triple with one of its operands holding the result of the right * hand side evaluation, but an invalid SVN on the left side which would have instead caused an OC_RTERROR triple * to have been generated leaving no triple to receive the result of the right hand side evaluation thus causing * emit_code to be confused and GTMASSERT). Therefore discard all triples generated by the right hand side in this case. * By the same reasoning, discard all triples generated by setleft targets AFTER this invalid one as well. * "first_setleft_invalid" is set to TRUE if the first setleft target is invalid and set to FALSE if the first setleft * target is valid. It is initialized to -1 before the start of the parse. */ int index, setop, delimlen; int first_val_lit, last_val_lit, nakedzalias; boolean_t first_is_lit, last_is_lit, got_lparen, delim1char, is_extract, valid_char; boolean_t alias_processing, have_lh_alias; opctype put_oc; oprtype v, delimval, firstval, lastval, *result, resptr; triple *curtargchain, *delimiter, discardcurtchain, *first, *get, *jmptrp1, *jmptrp2, *last, *obp, *put; triple *s, *s0, *s1, save_targchain, *save_curtchain, *save_curtchain1, *sub, targchain, *tmp; mint delimlit; mval *delim_mval; mvar *mvarptr; boolean_t parse_warn; /* set to TRUE in case of an invalid SVN etc. */ boolean_t curtchain_switched; /* set to TRUE if a setcurtchain was done */ int first_setleft_invalid; /* set to TRUE if the first setleft target is invalid */ boolean_t temp_subs_was_FALSE; union { uint4 unichar_val; unsigned char unibytes_val[4]; } unichar; DCL_THREADGBL_ACCESS; SETUP_THREADGBL_ACCESS; TREF(temp_subs) = FALSE; dqinit(&targchain, exorder); result = (oprtype *)mcalloc(SIZEOF(oprtype)); resptr = put_indr(result); delimiter = sub = last = NULL; /* A SET clause must be entirely alias related or a normal set. Parenthized multiple sets of aliases are not allowed * and will trigger an error. This is because the source and targets of aliases require different values and references * than normal sets do and thus cannot be mixed. */ if (alias_processing = (TK_ASTERISK == window_token)) advancewindow(); if (got_lparen = (TK_LPAREN == window_token)) { if (alias_processing) stx_error(ERR_NOALIASLIST); advancewindow(); TREF(temp_subs) = TRUE; } /* Some explanation: The triples from the left hand side of the SET expression that are * expressly associated with fetching (in case of set $piece/$extract) and/or storing of * the target value are removed from curtchain and placed on the targchain. Later, these * triples will be added to the end of curtchain to do the finishing store of the target * after the righthand side has been evaluated. This is per the M standard. * * Note that SET $PIECE/$EXTRACT have special conditions in which the first argument is not referenced at all. * (e.g. set $piece(^a," ",3,2) in this case 3 > 2 so this should not evaluate ^a and therefore should not * modify the naked indicator). That is, the triples that do these conditional checks need to be inserted * ahead of the OC_GVNAME of ^a, all of which need to be inserted on the targchain. But the conditionalization * can be done only after parsing the first argument of the SET $PIECE and examining the remaining arguments. * Therefore we maintain the "curtargchain" variable which stores the value of the "targchain" at the beginning * of the iteration (at the start of the $PIECE parsing) and all the conditionalization will be inserted right * here which is guaranteed to be ahead of where the OC_GVNAME gets inserted. * * For example, SET $PIECE(^A(x,y),delim,first,last)=RHS will generate a final triple chain as follows * * A - Triples to evaluate subscripts (x,y) of the global ^A * A - Triples to evaluate delim * A - Triples to evaluate first * A - Triples to evaluate last * B - Triples to evaluate RHS * C - Triples to do conditional check (e.g. first > last etc.) * C - Triples to branch around if the checks indicate this is a null operation SET $PIECE * D - Triple that does OC_GVNAME of ^A * D - Triple that does OC_SETPIECE to determine the new value * D - Triple that does OC_GVPUT of the new value into ^A(x,y) * This is the point where the conditional check triples will branch around to if they chose to. * * A - triples that evaluates the arguments/subscripts in the left-hand-side of the SET command * These triples are built in "curtchain" * B - triples that evaluates the arguments/subscripts in the right-hand-side of the SET command * These triples are built in "curtchain" * C - triples that do conditional check for any $PIECE/$EXTRACT in the left side of the SET command. * These triples are built in "curtargchain" * D - triples that generate the reference to the target of the SET and the store into the target. * These triples are built in "targchain" * * Note alias processing does not support the SET *(...)=.. type syntax because the type of argument * created for RHS processing is dependent on the LHS receiver type and we do not support more than one * type of source argument in a single SET. */ first_setleft_invalid = FIRST_SETLEFT_NOTSEEN; curtchain_switched = FALSE; nakedzalias = have_lh_alias = FALSE; save_curtchain = NULL; assert(FIRST_SETLEFT_NOTSEEN != TRUE); assert(FIRST_SETLEFT_NOTSEEN != FALSE); for (parse_warn = FALSE; ; parse_warn = FALSE) { curtargchain = targchain.exorder.bl; jmptrp1 = jmptrp2 = NULL; delim1char = is_extract = FALSE; allow_dzwrtac_as_mident(); /* Allows $ZWRTACxxx as target to be treated as an mident */ switch (window_token) { case TK_IDENT: /* A slight diversion first. If this is a $ZWRTAC set (indication of $ in first char * is currently enough to signify that), then we need to check a few conditions first. * If this is a "naked $ZWRTAC", meaning no numeric suffix, then this is a flag that * all the $ZWRTAC vars in the local variable tree need to be kill *'d which will not * be generating a SET instruction. First we need to verify that fact and make sure * we are not in PARENs and not doing alias processing. Note *any* value can be * specified as the source but while it will be evaluated, it is NOT stored anywhere. */ if ('$' == *window_ident.addr) { /* We have a $ZWRTAC<xx> target */ if (got_lparen) /* We don't allow $ZWRTACxxx to be specified in a parenthesized list. * Verify that first */ SYNTAX_ERROR(ERR_DZWRNOPAREN); if (STR_LIT_LEN(DOLLAR_ZWRTAC) == window_ident.len) { /* Ok, this is a naked $ZWRTAC targeted set */ if (alias_processing) SYNTAX_ERROR(ERR_DZWRNOALIAS); nakedzalias = TRUE; /* This opcode doesn't really need args but it is easier to fit in with the rest * of m_set processing to pass it the result arg, which there may actually be * a use for someday.. */ put = maketriple(OC_CLRALSVARS); put->operand[0] = resptr; dqins(targchain.exorder.bl, exorder, put); advancewindow(); break; } } /* If we are doing alias processing, there are two possibilities: * 1) LHS is unsubscripted - it is an alias variable being created or replaced. Need to parse * the varname as if this were a regular set. * 2) LHS is subscripted - it is an alias container variable being created or replaced. The * processing here is to pass the base variable index to the store routine so bypass the * lvn() call. */ if (!alias_processing || TK_LPAREN == director_token) { /* Normal variable processing or we have a lh alias container */ if (!lvn(&v, OC_PUTINDX, 0)) SYNTAX_ERROR_NOREPORT_HERE; if (OC_PUTINDX == v.oprval.tref->opcode) { dqdel(v.oprval.tref, exorder); dqins(targchain.exorder.bl, exorder, v.oprval.tref); sub = v.oprval.tref; put_oc = OC_PUTINDX; if (TREF(temp_subs)) m_set_create_temporaries(sub, put_oc); } } else { /* Have alias variable. Argument is index into var table rather than pointer to var */ have_lh_alias = TRUE; /* We only want the variable index in this case. Since the entire hash structure to which * this variable is going to be pointing to is changing, doing anything that calls fetch() * is somewhat pointless so we avoid it by just accessing the variable information * directly. */ mvarptr = get_mvaddr(&window_ident); v = put_ilit(mvarptr->mvidx); advancewindow(); } /* Determine correct storing triple */ put = maketriple((!alias_processing ? OC_STO : (have_lh_alias ? OC_SETALS2ALS : OC_SETALSIN2ALSCT))); put->operand[0] = v; put->operand[1] = resptr; dqins(targchain.exorder.bl, exorder, put); break; case TK_CIRCUMFLEX: if (alias_processing) SYNTAX_ERROR(ERR_ALIASEXPECTED); s1 = curtchain->exorder.bl; if (!gvn()) SYNTAX_ERROR_NOREPORT_HERE; for (sub = curtchain->exorder.bl; sub != s1; sub = sub->exorder.bl) { put_oc = sub->opcode; if (OC_GVNAME == put_oc || OC_GVNAKED == put_oc || OC_GVEXTNAM == put_oc) break; } assert(OC_GVNAME == put_oc || OC_GVNAKED == put_oc || OC_GVEXTNAM == put_oc); dqdel(sub, exorder); dqins(targchain.exorder.bl, exorder, sub); if (TREF(temp_subs)) m_set_create_temporaries(sub, put_oc); put = maketriple(OC_GVPUT); put->operand[0] = resptr; dqins(targchain.exorder.bl, exorder, put); break; case TK_ATSIGN: if (alias_processing) SYNTAX_ERROR(ERR_ALIASEXPECTED); if (!indirection(&v)) SYNTAX_ERROR_NOREPORT_HERE; if (!got_lparen && TK_EQUAL != window_token) { assert(!curtchain_switched); put = newtriple(OC_COMMARG); put->operand[0] = v; put->operand[1] = put_ilit(indir_set); return TRUE; } put = maketriple(OC_INDSET); put->operand[0] = v; put->operand[1] = resptr; dqins(targchain.exorder.bl, exorder, put); break; case TK_DOLLAR: if (alias_processing) SYNTAX_ERROR(ERR_ALIASEXPECTED); advancewindow(); if (TK_IDENT != window_token) SYNTAX_ERROR(ERR_VAREXPECTED); if (TK_LPAREN != director_token) { /* Look for intrinsic special variables */ s1 = curtchain->exorder.bl; if (0 > (index = namelook(svn_index, svn_names, window_ident.addr, window_ident.len))) { STX_ERROR_WARN(ERR_INVSVN); /* sets "parse_warn" to TRUE */ } else if (!svn_data[index].can_set) { STX_ERROR_WARN(ERR_SVNOSET); /* sets "parse_warn" to TRUE */ } advancewindow(); if (!parse_warn) { if (SV_ETRAP != svn_data[index].opcode && SV_ZTRAP != svn_data[index].opcode) { /* Setting of $ZTRAP or $ETRAP must go through opp_svput because they * may affect the stack pointer. All others directly to op_svput(). */ put = maketriple(OC_SVPUT); } else put = maketriple(OC_PSVPUT); put->operand[0] = put_ilit(svn_data[index].opcode); put->operand[1] = resptr; dqins(targchain.exorder.bl, exorder, put); } else { /* OC_RTERROR triple would have been inserted in curtchain by ins_errtriple * (invoked by stx_error). To maintain consistency with the "if" portion of * this code, we need to move this triple to the "targchain". */ tmp = curtchain->exorder.bl; /* corresponds to put_ilit(FALSE) in ins_errtriple */ tmp = tmp->exorder.bl; /* corresponds to put_ilit(in_error) in ins_errtriple */ tmp = tmp->exorder.bl; /* corresponds to newtriple(OC_RTERROR) in ins_errtriple */ assert(OC_RTERROR == tmp->opcode); dqdel(tmp, exorder); dqins(targchain.exorder.bl, exorder, tmp); CHKTCHAIN(&targchain); } break; } /* Only 4 function names allowed on left side: $[Z]Piece and $[Z]Extract */ index = namelook(fun_index, fun_names, window_ident.addr, window_ident.len); if (0 > index) { STX_ERROR_WARN(ERR_INVFCN); /* sets "parse_warn" to TRUE */ /* OC_RTERROR triple would have been inserted in "curtchain" by ins_errtriple * (invoked by stx_error). We need to switch it to "targchain" to be consistent * with every other codepath in this module. */ tmp = curtchain->exorder.bl; /* corresponds to put_ilit(FALSE) in ins_errtriple */ tmp = tmp->exorder.bl; /* corresponds to put_ilit(in_error) in ins_errtriple */ tmp = tmp->exorder.bl; /* corresponds to newtriple(OC_RTERROR) in ins_errtriple */ assert(OC_RTERROR == tmp->opcode); dqdel(tmp, exorder); dqins(targchain.exorder.bl, exorder, tmp); CHKTCHAIN(&targchain); advancewindow(); /* skip past the function name */ advancewindow(); /* skip past the left paren */ /* Parse the remaining arguments until corresponding RIGHT-PAREN/SPACE/EOL is reached */ if (!parse_until_rparen_or_space()) SYNTAX_ERROR_NOREPORT_HERE; } else { switch(fun_data[index].opcode) { case OC_FNPIECE: setop = OC_SETPIECE; break; case OC_FNEXTRACT: is_extract = TRUE; setop = OC_SETEXTRACT; break; case OC_FNZPIECE: setop = OC_SETZPIECE; break; case OC_FNZEXTRACT: is_extract = TRUE; setop = OC_SETZEXTRACT; break; default: SYNTAX_ERROR(ERR_VAREXPECTED); } advancewindow(); advancewindow(); /* Although we see the get (target) variable first, we need to save it's processing * on another chain -- the targchain -- because the retrieval of the target is bypassed * and the naked indicator is not reset if the first/last parameters are not set in a * logical manner (must be > 0 and first <= last). So the evaluation order is * delimiter (if $piece), first, last, RHS of the set and then the target if applicable. * Set up primary action triple now since it is ref'd by the put triples generated below. */ s = maketriple(setop); /* Even for SET[Z]PIECE and SET[Z]EXTRACT, the SETxxxxx opcodes * do not do the final store, they only create the final value TO be * stored so generate the triples that will actually do the store now. * Note we are still building triples on the original curtchain. */ switch (window_token) { case TK_IDENT: if (!lvn(&v, OC_PUTINDX, 0)) SYNTAX_ERROR(ERR_VAREXPECTED); if (OC_PUTINDX == v.oprval.tref->opcode) { dqdel(v.oprval.tref, exorder); dqins(targchain.exorder.bl, exorder, v.oprval.tref); sub = v.oprval.tref; put_oc = OC_PUTINDX; if (TREF(temp_subs)) m_set_create_temporaries(sub, put_oc); } get = maketriple(OC_FNGET); get->operand[0] = v; put = maketriple(OC_STO); put->operand[0] = v; put->operand[1] = put_tref(s); break; case TK_ATSIGN: if (!indirection(&v)) SYNTAX_ERROR(ERR_VAREXPECTED); get = maketriple(OC_INDGET); get->operand[0] = v; get->operand[1] = put_str(0, 0); put = maketriple(OC_INDSET); put->operand[0] = v; put->operand[1] = put_tref(s); break; case TK_CIRCUMFLEX: s1 = curtchain->exorder.bl; if (!gvn()) SYNTAX_ERROR_NOREPORT_HERE; for (sub = curtchain->exorder.bl; sub != s1 ; sub = sub->exorder.bl) { put_oc = sub->opcode; if ((OC_GVNAME == put_oc) || (OC_GVNAKED == put_oc) || (OC_GVEXTNAM == put_oc)) break; } assert((OC_GVNAME == put_oc) || (OC_GVNAKED == put_oc) || (OC_GVEXTNAM == put_oc)); dqdel(sub, exorder); dqins(targchain.exorder.bl, exorder, sub); if (TREF(temp_subs)) m_set_create_temporaries(sub, put_oc); get = maketriple(OC_FNGVGET); get->operand[0] = put_str(0, 0); put = maketriple(OC_GVPUT); put->operand[0] = put_tref(s); break; default: SYNTAX_ERROR(ERR_VAREXPECTED); } s->operand[0] = put_tref(get); /* Code to fetch args for target triple are on targchain. Put get there now too. */ dqins(targchain.exorder.bl, exorder, get); CHKTCHAIN(&targchain); if (!is_extract) { /* Set $[z]piece */ delimiter = newtriple(OC_PARAMETER); s->operand[1] = put_tref(delimiter); first = newtriple(OC_PARAMETER); delimiter->operand[1] = put_tref(first); /* Process delimiter string ($[z]piece only) */ if (TK_COMMA != window_token) SYNTAX_ERROR(ERR_COMMA); advancewindow(); if (!strexpr(&delimval)) SYNTAX_ERROR_NOREPORT_HERE; assert(TRIP_REF == delimval.oprclass); } else { /* Set $[Z]Extract */ first = newtriple(OC_PARAMETER); s->operand[1] = put_tref(first); } /* Process first integer value */ if (window_token != TK_COMMA) firstval = put_ilit(1); else { advancewindow(); if (!intexpr(&firstval)) SYNTAX_ERROR(ERR_COMMA); assert(firstval.oprclass == TRIP_REF); } first->operand[0] = firstval; if (first_is_lit = (OC_ILIT == firstval.oprval.tref->opcode)) { assert(ILIT_REF ==firstval.oprval.tref->operand[0].oprclass); first_val_lit = firstval.oprval.tref->operand[0].oprval.ilit; } if (TK_COMMA != window_token) { /* There is no "last" value. Only if 1 char literal delimiter and * no "last" value can we generate shortcut code to op_set[z]p1 entry * instead of op_set[z]piece. Note if UTF8 mode is in effect, then this * optimization applies if the literal is one unicode char which may in * fact be up to 4 bytes but will still be passed as a single unsigned * integer. */ if (!is_extract) { delim_mval = &delimval.oprval.tref->operand[0].oprval.mlit->v; valid_char = TRUE; /* Basic assumption unles proven otherwise */ if (delimval.oprval.tref->opcode == OC_LIT && (1 == (gtm_utf8_mode ? MV_FORCE_LEN(delim_mval) : delim_mval->str.len))) { /* Single char delimiter for set $piece */ UNICODE_ONLY( if (gtm_utf8_mode) { /* We have a supposed single char delimiter but it * must be a valid utf8 char to be used by * op_setp1() and MV_FORCE_LEN won't tell us that. */ valid_char = UTF8_VALID(delim_mval->str.addr, (delim_mval->str.addr + delim_mval->str.len), delimlen); if (!valid_char && !badchar_inhibit) UTF8_BADCHAR(0, delim_mval->str.addr, (delim_mval->str.addr + delim_mval->str.len), 0, NULL); } ); if (valid_char || 1 == delim_mval->str.len) { /* This reference to a one character literal or a single * byte invalid utf8 character that needs to be turned into * an explict formated integer literal instead */ unichar.unichar_val = 0; if (!gtm_utf8_mode) { /* Single byte delimiter */ assert(1 == delim_mval->str.len); UNIX_ONLY(s->opcode = OC_SETZP1); VMS_ONLY(s->opcode = OC_SETP1); unichar.unibytes_val[0] = *delim_mval->str.addr; } UNICODE_ONLY( else { /* Potentially multiple bytes in one int */ assert(SIZEOF(int) >= delim_mval->str.len); memcpy(unichar.unibytes_val, delim_mval->str.addr, delim_mval->str.len); s->opcode = OC_SETP1; } ); delimlit = (mint)unichar.unichar_val; delimiter->operand[0] = put_ilit(delimlit); delim1char = TRUE; } } }
int m_merge(void) { error_def(ERR_VAREXPECTED); error_def(ERR_RPARENMISSING); error_def(ERR_EQUAL); opctype put_oc; oprtype mopr; triple *sub, *ref, *obp, *s1, *restart, tmpchain; mval mv; int type; restart = newtriple(OC_RESTARTPC); /* Here is where a restart should pick up */ dqinit(&tmpchain, exorder); /* Left Hand Side of EQUAL sign */ switch (window_token) { case TK_IDENT: if (!lvn(&mopr, OC_PUTINDX, 0)) return FALSE; if (OC_PUTINDX == mopr.oprval.tref->opcode); { /* we insert left hand side argument into tmpchain. */ dqdel(mopr.oprval.tref, exorder); dqins(tmpchain.exorder.bl, exorder, mopr.oprval.tref); } ref = maketriple(OC_MERGE_LVARG); ref->operand[0] = put_ilit(MARG1_LCL); ref->operand[1] = mopr; dqins(tmpchain.exorder.bl, exorder, ref); break; case TK_CIRCUMFLEX: s1 = curtchain->exorder.bl; if (!gvn()) return FALSE; for (sub = curtchain->exorder.bl; sub != s1; sub = sub->exorder.bl) { put_oc = sub->opcode; if (OC_GVNAME == put_oc || OC_GVNAKED == put_oc || OC_GVEXTNAM == put_oc) break; } assert(OC_GVNAME == put_oc || OC_GVNAKED == put_oc || OC_GVEXTNAM == put_oc); /* we insert left hand side argument into tmpchain. */ dqdel(sub, exorder); dqins(tmpchain.exorder.bl ,exorder, sub); ref = maketriple(OC_MERGE_GVARG); ref->operand[0] = put_ilit(MARG1_GBL); dqins(tmpchain.exorder.bl, exorder, ref); break; case TK_ATSIGN: if (!indirection(&mopr)) return FALSE; if (window_token != TK_EQUAL) { ref = newtriple(OC_COMMARG); ref->operand[0] = mopr; ref->operand[1] = put_ilit((mint) indir_merge); ins_triple(ref); return TRUE; } type = MARG1_LCL | MARG1_GBL; MV_FORCE_MVAL(&mv, type); MV_FORCE_STR(&mv); ref = maketriple(OC_INDMERGE); ref->operand[0] = put_lit(&mv); ref->operand[1] = mopr; /* we insert left hand side argument into tmpchain. */ dqins(tmpchain.exorder.bl, exorder, ref); break; default: stx_error(ERR_VAREXPECTED); return FALSE; } if (window_token != TK_EQUAL) { stx_error(ERR_EQUAL); return FALSE; } advancewindow(); /* Right Hand Side of EQUAL sign */ switch (window_token) { case TK_IDENT: if (!lvn(&mopr, OC_M_SRCHINDX, 0)) return FALSE; ref = newtriple(OC_MERGE_LVARG); ref->operand[0] = put_ilit(MARG2_LCL); ref->operand[1] = mopr; break; case TK_CIRCUMFLEX: if (!gvn()) return FALSE; ref = newtriple(OC_MERGE_GVARG); ref->operand[0] = put_ilit(MARG2_GBL); break; case TK_ATSIGN: if (!indirection(&mopr)) { stx_error(ERR_VAREXPECTED); return FALSE; } type = MARG2_LCL | MARG2_GBL; MV_FORCE_MVAL(&mv, type); MV_FORCE_STR(&mv); ref = maketriple(OC_INDMERGE); ref->operand[0] = put_lit(&mv); ref->operand[1] = mopr; ins_triple(ref); break; default: stx_error(ERR_VAREXPECTED); return FALSE; } /* * Make sure that during runtime right hand side argument is processed first. * This is specially important if global naked variable is used . */ obp = curtchain->exorder.bl; dqadd(obp, &tmpchain, exorder); ref = newtriple(OC_MERGE); return TRUE; }
void op_indrzshow(mval *s1, mval *s2) { icode_str indir_src; int rval; mstr *obj, object; oprtype v; triple *lvar, *outtype, *r, *src; DCL_THREADGBL_ACCESS; SETUP_THREADGBL_ACCESS; if (TREF(ind_source_sp) >= TREF(ind_source_top)) rts_error(VARLSTCNT(1) ERR_INDMAXNEST); /* mdbcondition_handler resets ind_source_sp */ MV_FORCE_STR(s2); indir_src.str = s2->str; indir_src.code = indir_zshow; if (NULL == (obj = cache_get(&indir_src))) { obj = &object; comp_init(&s2->str); src = maketriple(OC_IGETSRC); ins_triple(src); switch(TREF(window_token)) { case TK_CIRCUMFLEX: if (EXPR_FAIL != (rval = gvn())) /* NOTE assignment */ { r = maketriple(OC_ZSHOW); outtype = newtriple(OC_PARAMETER); r->operand[1] = put_tref(outtype); r->operand[0] = put_tref(src); outtype->operand[0] = put_ilit(ZSHOW_GLOBAL); ins_triple(r); } break; case TK_IDENT: if (EXPR_FAIL != (rval = lvn(&v, OC_PUTINDX, 0))) /* NOTE assignment */ { r = maketriple(OC_ZSHOWLOC); outtype = newtriple(OC_PARAMETER); r->operand[1] = put_tref(outtype); r->operand[0] = put_tref(src); lvar = newtriple(OC_PARAMETER); outtype->operand[1] = put_tref(lvar); lvar->operand[0] = v; outtype->operand[0] = put_ilit(ZSHOW_LOCAL); ins_triple(r); } break; case TK_ATSIGN: if (EXPR_FAIL != (rval = indirection(&v))) /* NOTE assignment */ { r = newtriple(OC_INDRZSHOW); r->operand[0] = put_tref(src); r->operand[1] = v; } break; default: stx_error(ERR_VAREXPECTED); rval = EXPR_FAIL; break; } if (EXPR_FAIL == comp_fini(rval, obj, OC_RET, 0, s2->str.len)) return; indir_src.str = s2->str; indir_src.code = indir_zshow; cache_put(&indir_src, obj); /* Fall into code activation below */ } *(TREF(ind_source_sp))++ = s1; /* Where to store return value */ comp_indr(obj); return; }
void Compilation::build_hir() { CHECK_BAILOUT(); // setup ir _hir = new IR(this, method(), osr_bci()); if (!_hir->is_valid()) { bailout("invalid parsing"); return; } #ifndef PRODUCT if (PrintCFGToFile) { CFGPrinter::print_cfg(_hir, "After Generation of HIR", true, false); } #endif #ifndef PRODUCT if (PrintCFG || PrintCFG0) { tty->print_cr("CFG after parsing"); _hir->print(true); } if (PrintIR || PrintIR0 ) { tty->print_cr("IR after parsing"); _hir->print(false); } #endif _hir->verify(); if (UseC1Optimizations) { NEEDS_CLEANUP // optimization PhaseTraceTime timeit(_t_optimizeIR); _hir->optimize(); } _hir->verify(); _hir->split_critical_edges(); #ifndef PRODUCT if (PrintCFG || PrintCFG1) { tty->print_cr("CFG after optimizations"); _hir->print(true); } if (PrintIR || PrintIR1 ) { tty->print_cr("IR after optimizations"); _hir->print(false); } #endif _hir->verify(); // compute block ordering for code generation // the control flow must not be changed from here on _hir->compute_code(); if (UseGlobalValueNumbering) { ResourceMark rm; int instructions = Instruction::number_of_instructions(); GlobalValueNumbering gvn(_hir); assert(instructions == Instruction::number_of_instructions(), "shouldn't have created an instructions"); } // compute use counts after global value numbering _hir->compute_use_counts(); #ifndef PRODUCT if (PrintCFG || PrintCFG2) { tty->print_cr("CFG before code generation"); _hir->code()->print(true); } if (PrintIR || PrintIR2 ) { tty->print_cr("IR before code generation"); _hir->code()->print(false, true); } #endif _hir->verify(); }
// TLS Node* thread() { return gvn().transform(new (C, 1) ThreadLocalNode()); }
int f_next( oprtype *a, opctype op) { triple *oldchain, tmpchain, *ref, *r, *triptr; error_def(ERR_VAREXPECTED); error_def(ERR_LVORDERARG); error_def(ERR_GVNEXTARG); DCL_THREADGBL_ACCESS; SETUP_THREADGBL_ACCESS; r = maketriple(op); switch (window_token) { case TK_IDENT: if (director_token != TK_LPAREN) { stx_error(ERR_LVORDERARG); return FALSE; } if (!lvn(&(r->operand[0]),OC_SRCHINDX,r)) return FALSE; ins_triple(r); break; case TK_CIRCUMFLEX: ref = TREF(shift_side_effects) ? TREF(expr_start) : curtchain->exorder.bl; if (!gvn()) return FALSE; /* the following assumes OC_LIT and OC_GVNAME are all one * gets for an unsubscripted global variable reference */ if ((TREF(shift_side_effects) ? TREF(expr_start) : curtchain)->exorder.bl->exorder.bl->exorder.bl == ref) { stx_error(ERR_GVNEXTARG); return FALSE; } r->opcode = OC_GVNEXT; ins_triple(r); break; case TK_ATSIGN: if (TREF(shift_side_effects)) { dqinit(&tmpchain, exorder); oldchain = setcurtchain(&tmpchain); if (!indirection(&(r->operand[0]))) { setcurtchain(oldchain); return FALSE; } r->operand[1] = put_ilit((mint)indir_fnnext); ins_triple(r); newtriple(OC_GVSAVTARG); setcurtchain(oldchain); dqadd(TREF(expr_start), &tmpchain, exorder); TREF(expr_start) = tmpchain.exorder.bl; triptr = newtriple(OC_GVRECTARG); triptr->operand[0] = put_tref(TREF(expr_start)); } else { if (!indirection(&(r->operand[0]))) return FALSE; r->operand[1] = put_ilit((mint)indir_fnnext); ins_triple(r); } r->opcode = OC_INDFUN; break; default: stx_error(ERR_VAREXPECTED); return FALSE; } *a = put_tref(r); return TRUE; }
void op_indget(mval *dst, mval *target, mval *value) { icode_str indir_src; int rval; ht_ent_mname *tabent; mstr *obj, object; oprtype v; triple *s, *src, *oldchain, tmpchain, *r, *triptr; var_tabent targ_key; DCL_THREADGBL_ACCESS; SETUP_THREADGBL_ACCESS; if ((TREF(ind_source_sp) >= TREF(ind_source_top)) || (TREF(ind_result_sp) >= TREF(ind_result_top))) rts_error(VARLSTCNT(1) ERR_INDMAXNEST); /* mdbcondition_handler resets ind_result_sp & ind_source_sp */ MV_FORCE_DEFINED(value); MV_FORCE_STR(target); indir_src.str = target->str; indir_src.code = indir_get; if (NULL == (obj = cache_get(&indir_src))) { obj = &object; if (valid_mname(&target->str)) { targ_key.var_name = target->str; COMPUTE_HASH_MNAME(&targ_key); tabent = lookup_hashtab_mname(&curr_symval->h_symtab, &targ_key); if (!tabent || !LV_IS_VAL_DEFINED(tabent->value)) *dst = *value; else *dst = ((lv_val *)tabent->value)->v; dst->mvtype &= ~MV_ALIASCONT; /* Make sure alias container property does not pass */ return; } comp_init(&target->str); src = newtriple(OC_IGETSRC); switch (TREF(window_token)) { case TK_IDENT: if (EXPR_FAIL != (rval = lvn(&v, OC_SRCHINDX, 0))) /* NOTE assignment */ { s = newtriple(OC_FNGET2); s->operand[0] = v; s->operand[1] = put_tref(src); } break; case TK_CIRCUMFLEX: if (EXPR_FAIL != (rval = gvn())) /* NOTE assignment */ { r = newtriple(OC_FNGVGET1); s = newtriple(OC_FNGVGET2); s->operand[0] = put_tref(r); s->operand[1] = put_tref(src); } break; case TK_ATSIGN: TREF(saw_side_effect) = TREF(shift_side_effects); if (TREF(shift_side_effects) && (GTM_BOOL == TREF(gtm_fullbool))) { dqinit(&tmpchain, exorder); oldchain = setcurtchain(&tmpchain); if (EXPR_FAIL != (rval = indirection(&v))) /* NOTE assignment */ { s = newtriple(OC_INDGET); s->operand[0] = v; s->operand[1] = put_tref(src); newtriple(OC_GVSAVTARG); setcurtchain(oldchain); dqadd(TREF(expr_start), &tmpchain, exorder); TREF(expr_start) = tmpchain.exorder.bl; triptr = newtriple(OC_GVRECTARG); triptr->operand[0] = put_tref(TREF(expr_start)); } else setcurtchain(oldchain); } else { if (EXPR_FAIL != (rval = indirection(&v))) /* NOTE assignment */ { s = newtriple(OC_INDGET); s->operand[0] = v; s->operand[1] = put_tref(src); } } break; default: stx_error(ERR_VAREXPECTED); rval = EXPR_FAIL; break; } v = put_tref(s); if (EXPR_FAIL == comp_fini(rval, obj, OC_IRETMVAL, &v, target->str.len)) return; indir_src.str.addr = target->str.addr; cache_put(&indir_src, obj); /* Fall into code activation below */ } *(TREF(ind_result_sp))++ = dst; *(TREF(ind_source_sp))++ = value; comp_indr(obj); return; }
int f_get(oprtype *a, opctype op) { triple tmpchain, *oldchain, *r, *triptr; triple *jmp_to_get, *ret_get_val; oprtype result, *result_ptr; error_def(ERR_VAREXPECTED); result_ptr = (oprtype *)mcalloc(sizeof(oprtype)); result = put_indr(result_ptr); jmp_to_get = maketriple(op); ret_get_val = maketriple(op); r = maketriple(op); switch (window_token) { case TK_IDENT: if (!lvn(&r->operand[0], OC_SRCHINDX, 0)) return FALSE; if (window_token != TK_COMMA) { ins_triple(r); *a = put_tref(r); return TRUE; } r->opcode = OC_FNGET2; r->operand[1] = result; break; case TK_CIRCUMFLEX: r->opcode = OC_FNGVGET1; if (!gvn()) return FALSE; ins_triple(r); jmp_to_get->opcode = OC_JMPNEQ; jmp_to_get->operand[0] = put_tjmp(ret_get_val); ins_triple(jmp_to_get); ret_get_val->opcode = OC_FNGVGET2; ret_get_val->operand[0] = put_tref(r); ret_get_val->operand[1] = result; if (window_token != TK_COMMA) *result_ptr = put_str(0,0); else { advancewindow(); if (!expr(result_ptr)) return FALSE; } ins_triple(ret_get_val); *a = put_tref(ret_get_val); return TRUE; break; case TK_ATSIGN: r->opcode = OC_INDGET; if (shift_gvrefs) { dqinit(&tmpchain, exorder); oldchain = setcurtchain(&tmpchain); if (!indirection(&r->operand[0])) { setcurtchain(oldchain); return FALSE; } r->operand[1] = result; if (window_token == TK_COMMA) { advancewindow(); if (!expr(result_ptr)) return FALSE; } else *result_ptr = put_str(0, 0); ins_triple(r); newtriple(OC_GVSAVTARG); setcurtchain(oldchain); dqadd(expr_start, &tmpchain, exorder); expr_start = tmpchain.exorder.bl; triptr = newtriple(OC_GVRECTARG); triptr->operand[0] = put_tref(expr_start); *a = put_tref(r); return TRUE; } if (!indirection(&r->operand[0])) return FALSE; r->operand[1] = result; break; default: stx_error(ERR_VAREXPECTED); return FALSE; } if (window_token == TK_COMMA) { advancewindow(); if (!expr(result_ptr)) return FALSE; } else *result_ptr = put_str(0, 0); ins_triple(r); *a = put_tref(r); return TRUE; }
int f_get(oprtype *a, opctype op) { triple *oldchain, *r, tmpchain, *triptr; oprtype result, *result_ptr; DCL_THREADGBL_ACCESS; SETUP_THREADGBL_ACCESS; result_ptr = (oprtype *)mcalloc(SIZEOF(oprtype)); result = put_indr(result_ptr); r = maketriple(op); switch (TREF(window_token)) { case TK_IDENT: if (!lvn(&r->operand[0], OC_SRCHINDX, 0)) return FALSE; if (TK_COMMA != TREF(window_token)) { ins_triple(r); *a = put_tref(r); return TRUE; } r->opcode = OC_FNGET2; r->operand[1] = result; break; case TK_CIRCUMFLEX: if (!gvn()) return FALSE; if (TK_COMMA == TREF(window_token)) { /* 2-argument $GET with global-variable as first argument. In this case generate the following * sequence of opcodes. OC_FNGVGET1, opcodes-to-evaluate-second-argument-expression, OC_FNGVGET2 */ r->opcode = OC_FNGVGET1; ins_triple(r); triptr = r; /* Prepare triple for OC_FNGVGET2 */ r = maketriple(op); r->opcode = OC_FNGVGET2; r->operand[0] = put_tref(triptr); r->operand[1] = result; } else { r->opcode = OC_FNGVGET; r->operand[0] = result; } break; case TK_ATSIGN: r->opcode = OC_INDGET; TREF(saw_side_effect) = TREF(shift_side_effects); if (TREF(shift_side_effects) && (GTM_BOOL == TREF(gtm_fullbool))) { dqinit(&tmpchain, exorder); oldchain = setcurtchain(&tmpchain); if (!indirection(&r->operand[0])) { setcurtchain(oldchain); return FALSE; } r->operand[1] = result; if (TK_COMMA == TREF(window_token)) { advancewindow(); if (EXPR_FAIL == expr(result_ptr, MUMPS_EXPR)) return FALSE; } else *result_ptr = put_str(0, 0); ins_triple(r); newtriple(OC_GVSAVTARG); setcurtchain(oldchain); dqadd(TREF(expr_start), &tmpchain, exorder); TREF(expr_start) = tmpchain.exorder.bl; triptr = newtriple(OC_GVRECTARG); triptr->operand[0] = put_tref(TREF(expr_start)); *a = put_tref(r); return TRUE; } if (!indirection(&r->operand[0])) return FALSE; r->operand[1] = result; break; default: stx_error(ERR_VAREXPECTED); return FALSE; } if (TK_COMMA == TREF(window_token)) { advancewindow(); if (EXPR_FAIL == expr(result_ptr, MUMPS_EXPR)) return FALSE; } else *result_ptr = put_str(0, 0); ins_triple(r); *a = put_tref(r); return TRUE; }
// Data Node* ConI(jint k) { return (Node*)gvn().intcon(k); }
int f_order1( oprtype *a, opctype op) { triple *oldchain, tmpchain, *r, *triptr; error_def(ERR_VAREXPECTED); DCL_THREADGBL_ACCESS; SETUP_THREADGBL_ACCESS; r = maketriple(op); switch (window_token) { case TK_IDENT: if (director_token != TK_LPAREN) { r->opcode = OC_FNLVNAME; r->operand[0] = put_str(window_ident.addr, window_ident.len); r->operand[1] = put_ilit(0); /* FALSE - do not return aliased vars with no value */ ins_triple(r); advancewindow(); break; } if (!lvn(&(r->operand[0]), OC_SRCHINDX, r)) return FALSE; ins_triple(r); break; case TK_CIRCUMFLEX: if (!gvn()) return FALSE; r->opcode = OC_GVORDER; ins_triple(r); break; case TK_ATSIGN: if (TREF(shift_side_effects)) { dqinit(&tmpchain, exorder); oldchain = setcurtchain(&tmpchain); if (!indirection(&(r->operand[0]))) { setcurtchain(oldchain); return FALSE; } r->operand[1] = put_ilit((mint)indir_fnorder1); ins_triple(r); newtriple(OC_GVSAVTARG); setcurtchain(oldchain); dqadd(TREF(expr_start), &tmpchain, exorder); TREF(expr_start) = tmpchain.exorder.bl; triptr = newtriple(OC_GVRECTARG); triptr->operand[0] = put_tref(TREF(expr_start)); } else { if (!indirection(&(r->operand[0]))) return FALSE; r->operand[1] = put_ilit((mint)indir_fnorder1); ins_triple(r); } r->opcode = OC_INDFUN; break; default: stx_error(ERR_VAREXPECTED); return FALSE; } *a = put_tref(r); return TRUE; }
Node* ConX(jint k) { return (Node*)gvn().MakeConX(k); }
int f_incr(oprtype *a, opctype op) { boolean_t ok; oprtype *increment; triple incrchain, *oldchain, *r, *savptr, targchain, tmpexpr, *triptr; DCL_THREADGBL_ACCESS; SETUP_THREADGBL_ACCESS; r = maketriple(op); /* may need to evaluate the increment (2nd arg) early and use result later: prepare to juggle triple chains */ dqinit(&targchain, exorder); /* a place for the operation and the target */ dqinit(&tmpexpr, exorder); /* a place to juggle the shifted chain in case it's active */ triptr = TREF(expr_start); savptr = TREF(expr_start_orig); /* but make sure expr_start_orig == expr_start since this is a new chain */ TREF(expr_start_orig) = TREF(expr_start) = &tmpexpr; oldchain = setcurtchain(&targchain); /* save the result of the first argument 'cause it evaluates 2nd */ switch (TREF(window_token)) { case TK_IDENT: /* $INCREMENT() performs an implicit $GET() on a first argument lvn so we use OC_PUTINDX because * we know only at runtime whether to signal an UNDEF error (depending on whether we have * VIEW "NOUNDEF" or "UNDEF" state; op_putindx creates the local variable unconditionally, even if * we have "UNDEF" state, in which case any error in op_fnincr causes an op_kill of that local variable */ ok = (lvn(&(r->operand[0]), OC_PUTINDX, 0)); break; case TK_CIRCUMFLEX: ok = gvn(); r->opcode = OC_GVINCR; r->operand[0] = put_ilit(0); /* dummy fill since emit_code does not like empty operand[0] */ break; case TK_ATSIGN: ok = indirection(&r->operand[0]); r->opcode = OC_INDINCR; break; default: ok = FALSE; break; } if (!ok) { setcurtchain(oldchain); return FALSE; } TREF(expr_start) = triptr; /* restore original shift chain */ TREF(expr_start_orig) = savptr; increment = &r->operand[1]; if (TK_COMMA != TREF(window_token)) *increment = put_ilit(1); /* default optional increment to 1 */ else { dqinit(&incrchain, exorder); /* a place for the increment */ setcurtchain(&incrchain); /* increment expr must evaluate before the glvn in $INCR(glvn,expr) */ advancewindow(); if (EXPR_FAIL == expr(increment, MUMPS_NUM)) { setcurtchain(oldchain); return FALSE; } dqadd(&targchain, &incrchain, exorder); /* dir before targ - this is a violation of info hiding */ setcurtchain(&targchain); } coerce(increment, OCT_MVAL); ins_triple(r); if (&tmpexpr != tmpexpr.exorder.bl) { /* one or more OC_GVNAME may have shifted so add to the end of the shift chain */ assert(TREF(shift_side_effects)); dqadd(TREF(expr_start), &tmpexpr, exorder); /* this is a violation of info hiding */ TREF(expr_start) = tmpexpr.exorder.bl; assert(OC_GVSAVTARG == (TREF(expr_start))->opcode); triptr = newtriple(OC_GVRECTARG); /* restore the result of the last gvn to preserve $referece (the naked) */ triptr->operand[0] = put_tref(TREF(expr_start)); } if (!TREF(shift_side_effects) || (GTM_BOOL != TREF(gtm_fullbool)) || (OC_INDINCR != r->opcode)) { /* put it on the end of the main chain as there's no reason to play more with the ordering */ setcurtchain(oldchain); triptr = (TREF(curtchain))->exorder.bl; dqadd(triptr, &targchain, exorder); /* this is a violation of info hiding */ } else /* need full side effects or indirect 1st argument so put everything on the shift chain */ { /* add the chain after "expr_start" which may be much before "curtchain" */ newtriple(OC_GVSAVTARG); setcurtchain(oldchain); assert(NULL != TREF(expr_start)); dqadd(TREF(expr_start), &targchain, exorder); /* this is a violation of info hiding */ TREF(expr_start) = targchain.exorder.bl; triptr = newtriple(OC_GVRECTARG); triptr->operand[0] = put_tref(TREF(expr_start)); } /* $increment() args need to avoid side effect processing but that's handled in expritem so eval_expr gets $i()'s SE flag */ *a = put_tref(r); return TRUE; }