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comparison gen/tocall.cpp @ 930:7985bb036db4

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Follow the D ABI and pass the last arg in a register if it is a struct that fits.
author Christian Kamm <kamm incasoftware de>
date Tue, 03 Feb 2009 21:46:46 +0100
parents 162a0502a6b9
children d3a6f1a96731 a904cc9bc064
comparison
equal deleted inserted replaced
922:0749c0757a43 930:7985bb036db4
368 Argument* fnarg = Argument::getNth(tf->parameters, i); 368 Argument* fnarg = Argument::getNth(tf->parameters, i);
369 assert(fnarg); 369 assert(fnarg);
370 DValue* argval = DtoArgument(fnarg, (Expression*)arguments->data[i]); 370 DValue* argval = DtoArgument(fnarg, (Expression*)arguments->data[i]);
371 LLValue* arg = argval->getRVal(); 371 LLValue* arg = argval->getRVal();
372 372
373 // if it's a struct inreg arg, load first to pass as first-class value
374 if (tf->structInregArg && i == (tf->reverseParams ? n - 1 : 0))
375 {
376 assert(fnarg->llvmAttrs & llvm::Attribute::InReg);
377 arg = DtoLoad(arg);
378 }
379
373 int j = tf->reverseParams ? beg + n - i - 1 : beg + i; 380 int j = tf->reverseParams ? beg + n - i - 1 : beg + i;
374 381
375 // parameter type mismatch, this is hard to get rid of 382 // parameter type mismatch, this is hard to get rid of
376 if (arg->getType() != callableTy->getParamType(j)) 383 if (arg->getType() != callableTy->getParamType(j))
377 { 384 {
393 } 400 }
394 401
395 // reverse the relevant params as well as the param attrs 402 // reverse the relevant params as well as the param attrs
396 if (tf->reverseParams) 403 if (tf->reverseParams)
397 { 404 {
398 std::reverse(args.begin() + tf->reverseIndex, args.end()); 405 std::reverse(args.begin() + tf->firstRealArg, args.end());
399 std::reverse(attrptr.begin(), attrptr.end()); 406 std::reverse(attrptr.begin(), attrptr.end());
400 } 407 }
401 408
402 // add attributes 409 // add attributes
403 for (int i = 0; i < n; i++) 410 for (int i = 0; i < n; i++)