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