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- // Object oriented icode code for dcc
- // (C) 1997 Mike Van Emmerik
- #include <stdlib.h>
- #include <malloc.h>
- #include <memory.h>
- #include "dcc.h"
- #include "types.h" // Common types like uint8_t, etc
- #include "ast.h" // Some icode types depend on these
- #include "icode.h"
- #define ICODE_DELTA 25 // Amount to allocate for new chunk
- CIcodeRec::CIcodeRec()
- {
- }
- /* Copies the icode that is pointed to by pIcode to the icode array.
- * If there is need to allocate extra memory, it is done so, and
- * the alloc variable is adjusted. */
- ICODE * CIcodeRec::addIcode(ICODE *pIcode)
- {
- push_back(*pIcode);
- back().loc_ip = size()-1;
- return &back();
- }
- void CIcodeRec::SetInBB(int start, int _end, BB *pnewBB)
- {
- #ifdef _lint
- for (auto ik=this->begin(); ik!=this->end(); ++ik)
- {
- ICODE &icode(*ik);
- #else
- for(ICODE &icode : *this)
- {
- #endif
- if((icode.loc_ip>=start) and (icode.loc_ip<=_end))
- icode.inBB = pnewBB;
- }
- }
- /* labelSrchRepl - Searches the icodes for instruction with label = target, and
- replaces *pIndex with an icode index */
- bool CIcodeRec::labelSrch(uint32_t target, uint32_t &pIndex)
- {
- iICODE location=labelSrch(target);
- if(end()==location)
- return false;
- pIndex=location->loc_ip;
- return true;
- }
- CIcodeRec::iterator CIcodeRec::labelSrch(uint32_t target)
- {
- return find_if(begin(),end(),[target](ICODE &l) -> bool {return l.ll()->label==target;});
- }
- ICODE * CIcodeRec::GetIcode(int ip)
- {
- assert(ip>=0 && ip<size());
- iICODE res=begin();
- advance(res,ip);
- return &(*res);
- }
- extern int getNextLabel();
- extern bundle cCode;
- /* Checks the given icode to determine whether it has a label associated
- * to it. If so, a goto is emitted to this label; otherwise, a new label
- * is created and a goto is also emitted.
- * Note: this procedure is to be used when the label is to be backpatched
- * onto code in cCode.code */
- void LLInst::emitGotoLabel (int indLevel)
- {
- if ( not testFlags(HLL_LABEL) ) /* node hasn't got a lab */
- {
- /* Generate new label */
- hllLabNum = getNextLabel();
- setFlags(HLL_LABEL);
- /* Node has been traversed already, so backpatch this label into
- * the code */
- addLabelBundle (cCode.code, codeIdx, hllLabNum);
- }
- cCode.appendCode( "%sgoto L%ld;\n", indentStr(indLevel), hllLabNum);
- stats.numHLIcode++;
- }
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