346
347 } else {
348 // Other - some reaching non-oop value
349 omap->set_value( r);
350 }
351
352 }
353
354 #ifdef ASSERT
355 /* Nice, Intel-only assert
356 int cnt_callee_saves=0;
357 int reg2 = 0;
358 while (OptoReg::is_reg(reg2)) {
359 if( dup_check[reg2] != 0) cnt_callee_saves++;
360 assert( cnt_callee_saves==3 || cnt_callee_saves==5, "missed some callee-save" );
361 reg2++;
362 }
363 */
364 #endif
365
366 return omap;
367 }
368
369 //------------------------------do_liveness------------------------------------
370 // Compute backwards liveness on registers
371 static void do_liveness( PhaseRegAlloc *regalloc, PhaseCFG *cfg, Block_List *worklist, int max_reg_ints, Arena *A, Dict *safehash ) {
372 int *live = NEW_ARENA_ARRAY(A, int, (cfg->_num_blocks+1) * max_reg_ints);
373 int *tmp_live = &live[cfg->_num_blocks * max_reg_ints];
374 Node *root = cfg->C->root();
375 // On CISC platforms, get the node representing the stack pointer that regalloc
376 // used for spills
377 Node *fp = NodeSentinel;
378 if (UseCISCSpill && root->req() > 1) {
379 fp = root->in(1)->in(TypeFunc::FramePtr);
380 }
381 memset( live, 0, cfg->_num_blocks * (max_reg_ints<<LogBytesPerInt) );
382 // Push preds onto worklist
383 for( uint i=1; i<root->req(); i++ )
384 worklist->push(cfg->_bbs[root->in(i)->_idx]);
385
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346
347 } else {
348 // Other - some reaching non-oop value
349 omap->set_value( r);
350 }
351
352 }
353
354 #ifdef ASSERT
355 /* Nice, Intel-only assert
356 int cnt_callee_saves=0;
357 int reg2 = 0;
358 while (OptoReg::is_reg(reg2)) {
359 if( dup_check[reg2] != 0) cnt_callee_saves++;
360 assert( cnt_callee_saves==3 || cnt_callee_saves==5, "missed some callee-save" );
361 reg2++;
362 }
363 */
364 #endif
365
366 #ifdef ASSERT
367 for( OopMapStream oms1(omap, OopMapValue::derived_oop_value); !oms1.is_done(); oms1.next()) {
368 OopMapValue omv1 = oms1.current();
369 bool found = false;
370 for( OopMapStream oms2(omap,OopMapValue::oop_value); !oms2.is_done(); oms2.next()) {
371 if( omv1.content_reg() == oms2.current().reg() ) {
372 found = true;
373 break;
374 }
375 }
376 assert( found, "derived with no base in oopmap" );
377 }
378 #endif
379
380 return omap;
381 }
382
383 //------------------------------do_liveness------------------------------------
384 // Compute backwards liveness on registers
385 static void do_liveness( PhaseRegAlloc *regalloc, PhaseCFG *cfg, Block_List *worklist, int max_reg_ints, Arena *A, Dict *safehash ) {
386 int *live = NEW_ARENA_ARRAY(A, int, (cfg->_num_blocks+1) * max_reg_ints);
387 int *tmp_live = &live[cfg->_num_blocks * max_reg_ints];
388 Node *root = cfg->C->root();
389 // On CISC platforms, get the node representing the stack pointer that regalloc
390 // used for spills
391 Node *fp = NodeSentinel;
392 if (UseCISCSpill && root->req() > 1) {
393 fp = root->in(1)->in(TypeFunc::FramePtr);
394 }
395 memset( live, 0, cfg->_num_blocks * (max_reg_ints<<LogBytesPerInt) );
396 // Push preds onto worklist
397 for( uint i=1; i<root->req(); i++ )
398 worklist->push(cfg->_bbs[root->in(i)->_idx]);
399
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