122 lines
3.5 KiB
C
122 lines
3.5 KiB
C
/****************************************************************
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* *
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* Copyright 2012 Fidelity Information Services, Inc *
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* *
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* This source code contains the intellectual property *
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* of its copyright holder(s), and is made available *
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* under a license. If you do not know the terms of *
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* the license, please stop and do not read further. *
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* *
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****************************************************************/
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#include "mdef.h"
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#include "lv_val.h"
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#include "toktyp.h"
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#include "compiler.h"
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#include "opcode.h"
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#include "indir_enum.h"
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#include "cache.h"
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#include "op.h"
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#include <rtnhdr.h>
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#include "valid_mname.h"
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#include "gtm_string.h"
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#include "cachectl.h"
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#include "gtm_text_alloc.h"
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#include "callg.h"
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#include "mdq.h"
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#include "stack_frame.h"
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#include "stringpool.h"
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#include "mv_stent.h"
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#include "min_max.h"
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#include "glvn_pool.h"
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error_def(ERR_VAREXPECTED);
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/* [Used by SET] Saves an indirect variable in the glvn pool and returns its index. Maintain in parallel with op_indsavlvn. */
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void op_indsavglvn(mval *target, uint4 slot, uint4 do_ref)
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{
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icode_str indir_src;
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int rval;
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mstr *obj, object;
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oprtype v, getdst;
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opctype put_oc;
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triple *s, *s1, *sub, *share;
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DCL_THREADGBL_ACCESS;
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SETUP_THREADGBL_ACCESS;
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MV_FORCE_STR(target);
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indir_src.str = target->str;
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indir_src.code = do_ref ? indir_savglvn1 : indir_savglvn0; /* must differenitate the 2 code variants */
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if (NULL == (obj = cache_get(&indir_src)))
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{
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obj = &object;
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comp_init(&target->str, &getdst);
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share = maketriple(OC_SHARESLOT);
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share->operand[0] = getdst;
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switch (TREF(window_token))
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{
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case TK_IDENT:
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if (EXPR_FAIL != (rval = lvn(&v, OC_SAVLVN, NULL))) /* NOTE assignment */
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{
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s = v.oprval.tref;
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if (OC_SAVLVN != s->opcode)
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{ /* No subscripts. Still, let's do savindx */
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s = newtriple(OC_SAVLVN);
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s->operand[0] = put_ilit(1);
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s->operand[1] = v;
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}
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share->operand[1] = put_ilit(OC_SAVLVN);
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dqins(s->exorder.bl, exorder, share);
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}
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break;
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case TK_CIRCUMFLEX:
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s1 = (TREF(curtchain))->exorder.bl;
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if (EXPR_FAIL != (rval = gvn())) /* NOTE assignment */
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{
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for (sub = (TREF(curtchain))->exorder.bl; sub != s1; sub = sub->exorder.bl)
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{
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put_oc = sub->opcode;
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if ((OC_GVNAME == put_oc) || (OC_GVNAKED == put_oc) || (OC_GVEXTNAM == put_oc))
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break;
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}
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assert((OC_GVNAME == put_oc) || (OC_GVNAKED == put_oc) || (OC_GVEXTNAM == put_oc));
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if (!do_ref)
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sub->opcode = OC_SAVGVN; /* steal gv bind action to suppress global reference */
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else
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{ /* or replicate it to cause bind to update $R before save */
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s = maketriple(OC_SAVGVN);
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s->operand[0] = sub->operand[0];
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s->operand[1] = sub->operand[1];
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dqins(sub, exorder, s);
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}
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share->operand[1] = put_ilit(put_oc);
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dqins(sub->exorder.bl, exorder, share);
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}
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break;
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case TK_ATSIGN:
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if (EXPR_FAIL != (rval = indirection(&v))) /* NOTE assignment */
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{
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s = newtriple(OC_INDSAVGLVN);
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s->operand[0] = v;
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s1 = newtriple(OC_PARAMETER);
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s->operand[1] = put_tref(s1);
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s1->operand[0] = getdst;
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s1->operand[1] = put_ilit(do_ref); /* pass along flag to control global reference */
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}
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break;
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default:
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stx_error(ERR_VAREXPECTED);
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rval = EXPR_FAIL;
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break;
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}
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if (EXPR_FAIL == comp_fini(rval, obj, OC_RET, NULL, NULL, target->str.len))
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return;
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indir_src.str.addr = target->str.addr;
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cache_put(&indir_src, obj);
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assert(NULL != cache_get(&indir_src));
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}
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TREF(ind_result) = (mval *)(UINTPTR_T)slot;
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comp_indr(obj);
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}
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