vhdl: recognize to_stdlogicvector. For #1628

3 files changed, 243 insertions, 222 deletions

diff --git a/pyGHDL/libghdl/vhdl/nodes.py b/pyGHDL/libghdl/vhdl/nodes.py
index 659813d1e..976cc4457 100644
--- a/pyGHDL/libghdl/vhdl/nodes.py
+++ b/pyGHDL/libghdl/vhdl/nodes.py
@@ -1515,222 +1515,223 @@ class Iir_Predefined:
     Ieee_Numeric_Std_To_01_Uns = 435
     Ieee_Numeric_Std_To_01_Sgn = 436
     Ieee_Numeric_Std_Unsigned_To_Integer_Slv_Nat = 437
-    Ieee_Math_Real_Ceil = 438
-    Ieee_Math_Real_Floor = 439
-    Ieee_Math_Real_Round = 440
-    Ieee_Math_Real_Log2 = 441
-    Ieee_Math_Real_Sin = 442
-    Ieee_Math_Real_Cos = 443
-    Ieee_Std_Logic_Unsigned_Add_Slv_Slv = 444
-    Ieee_Std_Logic_Unsigned_Add_Slv_Int = 445
-    Ieee_Std_Logic_Unsigned_Add_Int_Slv = 446
-    Ieee_Std_Logic_Unsigned_Add_Slv_Log = 447
-    Ieee_Std_Logic_Unsigned_Add_Log_Slv = 448
-    Ieee_Std_Logic_Unsigned_Sub_Slv_Slv = 449
-    Ieee_Std_Logic_Unsigned_Sub_Slv_Int = 450
-    Ieee_Std_Logic_Unsigned_Sub_Int_Slv = 451
-    Ieee_Std_Logic_Unsigned_Sub_Slv_Log = 452
-    Ieee_Std_Logic_Unsigned_Sub_Log_Slv = 453
-    Ieee_Std_Logic_Unsigned_Id_Slv = 454
-    Ieee_Std_Logic_Unsigned_Mul_Slv_Slv = 455
-    Ieee_Std_Logic_Unsigned_Lt_Slv_Slv = 456
-    Ieee_Std_Logic_Unsigned_Lt_Slv_Int = 457
-    Ieee_Std_Logic_Unsigned_Lt_Int_Slv = 458
-    Ieee_Std_Logic_Unsigned_Le_Slv_Slv = 459
-    Ieee_Std_Logic_Unsigned_Le_Slv_Int = 460
-    Ieee_Std_Logic_Unsigned_Le_Int_Slv = 461
-    Ieee_Std_Logic_Unsigned_Gt_Slv_Slv = 462
-    Ieee_Std_Logic_Unsigned_Gt_Slv_Int = 463
-    Ieee_Std_Logic_Unsigned_Gt_Int_Slv = 464
-    Ieee_Std_Logic_Unsigned_Ge_Slv_Slv = 465
-    Ieee_Std_Logic_Unsigned_Ge_Slv_Int = 466
-    Ieee_Std_Logic_Unsigned_Ge_Int_Slv = 467
-    Ieee_Std_Logic_Unsigned_Eq_Slv_Slv = 468
-    Ieee_Std_Logic_Unsigned_Eq_Slv_Int = 469
-    Ieee_Std_Logic_Unsigned_Eq_Int_Slv = 470
-    Ieee_Std_Logic_Unsigned_Ne_Slv_Slv = 471
-    Ieee_Std_Logic_Unsigned_Ne_Slv_Int = 472
-    Ieee_Std_Logic_Unsigned_Ne_Int_Slv = 473
-    Ieee_Std_Logic_Unsigned_Conv_Integer = 474
-    Ieee_Std_Logic_Unsigned_Shl = 475
-    Ieee_Std_Logic_Unsigned_Shr = 476
-    Ieee_Std_Logic_Signed_Add_Slv_Slv = 477
-    Ieee_Std_Logic_Signed_Add_Slv_Int = 478
-    Ieee_Std_Logic_Signed_Add_Int_Slv = 479
-    Ieee_Std_Logic_Signed_Add_Slv_Log = 480
-    Ieee_Std_Logic_Signed_Add_Log_Slv = 481
-    Ieee_Std_Logic_Signed_Sub_Slv_Slv = 482
-    Ieee_Std_Logic_Signed_Sub_Slv_Int = 483
-    Ieee_Std_Logic_Signed_Sub_Int_Slv = 484
-    Ieee_Std_Logic_Signed_Sub_Slv_Log = 485
-    Ieee_Std_Logic_Signed_Sub_Log_Slv = 486
-    Ieee_Std_Logic_Signed_Id_Slv = 487
-    Ieee_Std_Logic_Signed_Neg_Slv = 488
-    Ieee_Std_Logic_Signed_Abs_Slv = 489
-    Ieee_Std_Logic_Signed_Mul_Slv_Slv = 490
-    Ieee_Std_Logic_Signed_Lt_Slv_Slv = 491
-    Ieee_Std_Logic_Signed_Lt_Slv_Int = 492
-    Ieee_Std_Logic_Signed_Lt_Int_Slv = 493
-    Ieee_Std_Logic_Signed_Le_Slv_Slv = 494
-    Ieee_Std_Logic_Signed_Le_Slv_Int = 495
-    Ieee_Std_Logic_Signed_Le_Int_Slv = 496
-    Ieee_Std_Logic_Signed_Gt_Slv_Slv = 497
-    Ieee_Std_Logic_Signed_Gt_Slv_Int = 498
-    Ieee_Std_Logic_Signed_Gt_Int_Slv = 499
-    Ieee_Std_Logic_Signed_Ge_Slv_Slv = 500
-    Ieee_Std_Logic_Signed_Ge_Slv_Int = 501
-    Ieee_Std_Logic_Signed_Ge_Int_Slv = 502
-    Ieee_Std_Logic_Signed_Eq_Slv_Slv = 503
-    Ieee_Std_Logic_Signed_Eq_Slv_Int = 504
-    Ieee_Std_Logic_Signed_Eq_Int_Slv = 505
-    Ieee_Std_Logic_Signed_Ne_Slv_Slv = 506
-    Ieee_Std_Logic_Signed_Ne_Slv_Int = 507
-    Ieee_Std_Logic_Signed_Ne_Int_Slv = 508
-    Ieee_Std_Logic_Signed_Conv_Integer = 509
-    Ieee_Std_Logic_Signed_Shl = 510
-    Ieee_Std_Logic_Signed_Shr = 511
-    Ieee_Std_Logic_Arith_Conv_Unsigned_Int = 512
-    Ieee_Std_Logic_Arith_Conv_Unsigned_Uns = 513
-    Ieee_Std_Logic_Arith_Conv_Unsigned_Sgn = 514
-    Ieee_Std_Logic_Arith_Conv_Unsigned_Log = 515
-    Ieee_Std_Logic_Arith_Conv_Integer_Int = 516
-    Ieee_Std_Logic_Arith_Conv_Integer_Uns = 517
-    Ieee_Std_Logic_Arith_Conv_Integer_Sgn = 518
-    Ieee_Std_Logic_Arith_Conv_Integer_Log = 519
-    Ieee_Std_Logic_Arith_Conv_Vector_Int = 520
-    Ieee_Std_Logic_Arith_Conv_Vector_Uns = 521
-    Ieee_Std_Logic_Arith_Conv_Vector_Sgn = 522
-    Ieee_Std_Logic_Arith_Conv_Vector_Log = 523
-    Ieee_Std_Logic_Arith_Ext = 524
-    Ieee_Std_Logic_Arith_Sxt = 525
-    Ieee_Std_Logic_Arith_Id_Uns_Uns = 526
-    Ieee_Std_Logic_Arith_Id_Sgn_Sgn = 527
-    Ieee_Std_Logic_Arith_Neg_Sgn_Sgn = 528
-    Ieee_Std_Logic_Arith_Abs_Sgn_Sgn = 529
-    Ieee_Std_Logic_Arith_Shl_Uns = 530
-    Ieee_Std_Logic_Arith_Shl_Sgn = 531
-    Ieee_Std_Logic_Arith_Shr_Uns = 532
-    Ieee_Std_Logic_Arith_Shr_Sgn = 533
-    Ieee_Std_Logic_Arith_Id_Uns_Slv = 534
-    Ieee_Std_Logic_Arith_Id_Sgn_Slv = 535
-    Ieee_Std_Logic_Arith_Neg_Sgn_Slv = 536
-    Ieee_Std_Logic_Arith_Abs_Sgn_Slv = 537
-    Ieee_Std_Logic_Arith_Mul_Uns_Uns_Uns = 538
-    Ieee_Std_Logic_Arith_Mul_Sgn_Sgn_Sgn = 539
-    Ieee_Std_Logic_Arith_Mul_Sgn_Uns_Sgn = 540
-    Ieee_Std_Logic_Arith_Mul_Uns_Sgn_Sgn = 541
-    Ieee_Std_Logic_Arith_Mul_Uns_Uns_Slv = 542
-    Ieee_Std_Logic_Arith_Mul_Sgn_Sgn_Slv = 543
-    Ieee_Std_Logic_Arith_Mul_Sgn_Uns_Slv = 544
-    Ieee_Std_Logic_Arith_Mul_Uns_Sgn_Slv = 545
-    Ieee_Std_Logic_Arith_Add_Uns_Uns_Uns = 546
-    Ieee_Std_Logic_Arith_Add_Sgn_Sgn_Sgn = 547
-    Ieee_Std_Logic_Arith_Add_Uns_Sgn_Sgn = 548
-    Ieee_Std_Logic_Arith_Add_Sgn_Uns_Sgn = 549
-    Ieee_Std_Logic_Arith_Add_Uns_Int_Uns = 550
-    Ieee_Std_Logic_Arith_Add_Int_Uns_Uns = 551
-    Ieee_Std_Logic_Arith_Add_Sgn_Int_Sgn = 552
-    Ieee_Std_Logic_Arith_Add_Int_Sgn_Sgn = 553
-    Ieee_Std_Logic_Arith_Add_Uns_Log_Uns = 554
-    Ieee_Std_Logic_Arith_Add_Log_Uns_Uns = 555
-    Ieee_Std_Logic_Arith_Add_Sgn_Log_Sgn = 556
-    Ieee_Std_Logic_Arith_Add_Log_Sgn_Sgn = 557
-    Ieee_Std_Logic_Arith_Add_Uns_Uns_Slv = 558
-    Ieee_Std_Logic_Arith_Add_Sgn_Sgn_Slv = 559
-    Ieee_Std_Logic_Arith_Add_Uns_Sgn_Slv = 560
-    Ieee_Std_Logic_Arith_Add_Sgn_Uns_Slv = 561
-    Ieee_Std_Logic_Arith_Add_Uns_Int_Slv = 562
-    Ieee_Std_Logic_Arith_Add_Int_Uns_Slv = 563
-    Ieee_Std_Logic_Arith_Add_Sgn_Int_Slv = 564
-    Ieee_Std_Logic_Arith_Add_Int_Sgn_Slv = 565
-    Ieee_Std_Logic_Arith_Add_Uns_Log_Slv = 566
-    Ieee_Std_Logic_Arith_Add_Log_Uns_Slv = 567
-    Ieee_Std_Logic_Arith_Add_Sgn_Log_Slv = 568
-    Ieee_Std_Logic_Arith_Add_Log_Sgn_Slv = 569
-    Ieee_Std_Logic_Arith_Sub_Uns_Uns_Uns = 570
-    Ieee_Std_Logic_Arith_Sub_Sgn_Sgn_Sgn = 571
-    Ieee_Std_Logic_Arith_Sub_Uns_Sgn_Sgn = 572
-    Ieee_Std_Logic_Arith_Sub_Sgn_Uns_Sgn = 573
-    Ieee_Std_Logic_Arith_Sub_Uns_Int_Uns = 574
-    Ieee_Std_Logic_Arith_Sub_Int_Uns_Uns = 575
-    Ieee_Std_Logic_Arith_Sub_Sgn_Int_Sgn = 576
-    Ieee_Std_Logic_Arith_Sub_Int_Sgn_Sgn = 577
-    Ieee_Std_Logic_Arith_Sub_Uns_Log_Uns = 578
-    Ieee_Std_Logic_Arith_Sub_Log_Uns_Uns = 579
-    Ieee_Std_Logic_Arith_Sub_Sgn_Log_Sgn = 580
-    Ieee_Std_Logic_Arith_Sub_Log_Sgn_Sgn = 581
-    Ieee_Std_Logic_Arith_Sub_Uns_Uns_Slv = 582
-    Ieee_Std_Logic_Arith_Sub_Sgn_Sgn_Slv = 583
-    Ieee_Std_Logic_Arith_Sub_Uns_Sgn_Slv = 584
-    Ieee_Std_Logic_Arith_Sub_Sgn_Uns_Slv = 585
-    Ieee_Std_Logic_Arith_Sub_Uns_Int_Slv = 586
-    Ieee_Std_Logic_Arith_Sub_Int_Uns_Slv = 587
-    Ieee_Std_Logic_Arith_Sub_Sgn_Int_Slv = 588
-    Ieee_Std_Logic_Arith_Sub_Int_Sgn_Slv = 589
-    Ieee_Std_Logic_Arith_Sub_Uns_Log_Slv = 590
-    Ieee_Std_Logic_Arith_Sub_Log_Uns_Slv = 591
-    Ieee_Std_Logic_Arith_Sub_Sgn_Log_Slv = 592
-    Ieee_Std_Logic_Arith_Sub_Log_Sgn_Slv = 593
-    Ieee_Std_Logic_Arith_Lt_Uns_Uns = 594
-    Ieee_Std_Logic_Arith_Lt_Sgn_Sgn = 595
-    Ieee_Std_Logic_Arith_Lt_Uns_Sgn = 596
-    Ieee_Std_Logic_Arith_Lt_Sgn_Uns = 597
-    Ieee_Std_Logic_Arith_Lt_Uns_Int = 598
-    Ieee_Std_Logic_Arith_Lt_Int_Uns = 599
-    Ieee_Std_Logic_Arith_Lt_Sgn_Int = 600
-    Ieee_Std_Logic_Arith_Lt_Int_Sgn = 601
-    Ieee_Std_Logic_Arith_Le_Uns_Uns = 602
-    Ieee_Std_Logic_Arith_Le_Sgn_Sgn = 603
-    Ieee_Std_Logic_Arith_Le_Uns_Sgn = 604
-    Ieee_Std_Logic_Arith_Le_Sgn_Uns = 605
-    Ieee_Std_Logic_Arith_Le_Uns_Int = 606
-    Ieee_Std_Logic_Arith_Le_Int_Uns = 607
-    Ieee_Std_Logic_Arith_Le_Sgn_Int = 608
-    Ieee_Std_Logic_Arith_Le_Int_Sgn = 609
-    Ieee_Std_Logic_Arith_Gt_Uns_Uns = 610
-    Ieee_Std_Logic_Arith_Gt_Sgn_Sgn = 611
-    Ieee_Std_Logic_Arith_Gt_Uns_Sgn = 612
-    Ieee_Std_Logic_Arith_Gt_Sgn_Uns = 613
-    Ieee_Std_Logic_Arith_Gt_Uns_Int = 614
-    Ieee_Std_Logic_Arith_Gt_Int_Uns = 615
-    Ieee_Std_Logic_Arith_Gt_Sgn_Int = 616
-    Ieee_Std_Logic_Arith_Gt_Int_Sgn = 617
-    Ieee_Std_Logic_Arith_Ge_Uns_Uns = 618
-    Ieee_Std_Logic_Arith_Ge_Sgn_Sgn = 619
-    Ieee_Std_Logic_Arith_Ge_Uns_Sgn = 620
-    Ieee_Std_Logic_Arith_Ge_Sgn_Uns = 621
-    Ieee_Std_Logic_Arith_Ge_Uns_Int = 622
-    Ieee_Std_Logic_Arith_Ge_Int_Uns = 623
-    Ieee_Std_Logic_Arith_Ge_Sgn_Int = 624
-    Ieee_Std_Logic_Arith_Ge_Int_Sgn = 625
-    Ieee_Std_Logic_Arith_Eq_Uns_Uns = 626
-    Ieee_Std_Logic_Arith_Eq_Sgn_Sgn = 627
-    Ieee_Std_Logic_Arith_Eq_Uns_Sgn = 628
-    Ieee_Std_Logic_Arith_Eq_Sgn_Uns = 629
-    Ieee_Std_Logic_Arith_Eq_Uns_Int = 630
-    Ieee_Std_Logic_Arith_Eq_Int_Uns = 631
-    Ieee_Std_Logic_Arith_Eq_Sgn_Int = 632
-    Ieee_Std_Logic_Arith_Eq_Int_Sgn = 633
-    Ieee_Std_Logic_Arith_Ne_Uns_Uns = 634
-    Ieee_Std_Logic_Arith_Ne_Sgn_Sgn = 635
-    Ieee_Std_Logic_Arith_Ne_Uns_Sgn = 636
-    Ieee_Std_Logic_Arith_Ne_Sgn_Uns = 637
-    Ieee_Std_Logic_Arith_Ne_Uns_Int = 638
-    Ieee_Std_Logic_Arith_Ne_Int_Uns = 639
-    Ieee_Std_Logic_Arith_Ne_Sgn_Int = 640
-    Ieee_Std_Logic_Arith_Ne_Int_Sgn = 641
-    Ieee_Std_Logic_Misc_And_Reduce_Slv = 642
-    Ieee_Std_Logic_Misc_And_Reduce_Suv = 643
-    Ieee_Std_Logic_Misc_Nand_Reduce_Slv = 644
-    Ieee_Std_Logic_Misc_Nand_Reduce_Suv = 645
-    Ieee_Std_Logic_Misc_Or_Reduce_Slv = 646
-    Ieee_Std_Logic_Misc_Or_Reduce_Suv = 647
-    Ieee_Std_Logic_Misc_Nor_Reduce_Slv = 648
-    Ieee_Std_Logic_Misc_Nor_Reduce_Suv = 649
-    Ieee_Std_Logic_Misc_Xor_Reduce_Slv = 650
-    Ieee_Std_Logic_Misc_Xor_Reduce_Suv = 651
-    Ieee_Std_Logic_Misc_Xnor_Reduce_Slv = 652
-    Ieee_Std_Logic_Misc_Xnor_Reduce_Suv = 653
+    Ieee_Numeric_Std_Unsigned_To_Slv_Nat_Nat_Slv = 438
+    Ieee_Math_Real_Ceil = 439
+    Ieee_Math_Real_Floor = 440
+    Ieee_Math_Real_Round = 441
+    Ieee_Math_Real_Log2 = 442
+    Ieee_Math_Real_Sin = 443
+    Ieee_Math_Real_Cos = 444
+    Ieee_Std_Logic_Unsigned_Add_Slv_Slv = 445
+    Ieee_Std_Logic_Unsigned_Add_Slv_Int = 446
+    Ieee_Std_Logic_Unsigned_Add_Int_Slv = 447
+    Ieee_Std_Logic_Unsigned_Add_Slv_Log = 448
+    Ieee_Std_Logic_Unsigned_Add_Log_Slv = 449
+    Ieee_Std_Logic_Unsigned_Sub_Slv_Slv = 450
+    Ieee_Std_Logic_Unsigned_Sub_Slv_Int = 451
+    Ieee_Std_Logic_Unsigned_Sub_Int_Slv = 452
+    Ieee_Std_Logic_Unsigned_Sub_Slv_Log = 453
+    Ieee_Std_Logic_Unsigned_Sub_Log_Slv = 454
+    Ieee_Std_Logic_Unsigned_Id_Slv = 455
+    Ieee_Std_Logic_Unsigned_Mul_Slv_Slv = 456
+    Ieee_Std_Logic_Unsigned_Lt_Slv_Slv = 457
+    Ieee_Std_Logic_Unsigned_Lt_Slv_Int = 458
+    Ieee_Std_Logic_Unsigned_Lt_Int_Slv = 459
+    Ieee_Std_Logic_Unsigned_Le_Slv_Slv = 460
+    Ieee_Std_Logic_Unsigned_Le_Slv_Int = 461
+    Ieee_Std_Logic_Unsigned_Le_Int_Slv = 462
+    Ieee_Std_Logic_Unsigned_Gt_Slv_Slv = 463
+    Ieee_Std_Logic_Unsigned_Gt_Slv_Int = 464
+    Ieee_Std_Logic_Unsigned_Gt_Int_Slv = 465
+    Ieee_Std_Logic_Unsigned_Ge_Slv_Slv = 466
+    Ieee_Std_Logic_Unsigned_Ge_Slv_Int = 467
+    Ieee_Std_Logic_Unsigned_Ge_Int_Slv = 468
+    Ieee_Std_Logic_Unsigned_Eq_Slv_Slv = 469
+    Ieee_Std_Logic_Unsigned_Eq_Slv_Int = 470
+    Ieee_Std_Logic_Unsigned_Eq_Int_Slv = 471
+    Ieee_Std_Logic_Unsigned_Ne_Slv_Slv = 472
+    Ieee_Std_Logic_Unsigned_Ne_Slv_Int = 473
+    Ieee_Std_Logic_Unsigned_Ne_Int_Slv = 474
+    Ieee_Std_Logic_Unsigned_Conv_Integer = 475
+    Ieee_Std_Logic_Unsigned_Shl = 476
+    Ieee_Std_Logic_Unsigned_Shr = 477
+    Ieee_Std_Logic_Signed_Add_Slv_Slv = 478
+    Ieee_Std_Logic_Signed_Add_Slv_Int = 479
+    Ieee_Std_Logic_Signed_Add_Int_Slv = 480
+    Ieee_Std_Logic_Signed_Add_Slv_Log = 481
+    Ieee_Std_Logic_Signed_Add_Log_Slv = 482
+    Ieee_Std_Logic_Signed_Sub_Slv_Slv = 483
+    Ieee_Std_Logic_Signed_Sub_Slv_Int = 484
+    Ieee_Std_Logic_Signed_Sub_Int_Slv = 485
+    Ieee_Std_Logic_Signed_Sub_Slv_Log = 486
+    Ieee_Std_Logic_Signed_Sub_Log_Slv = 487
+    Ieee_Std_Logic_Signed_Id_Slv = 488
+    Ieee_Std_Logic_Signed_Neg_Slv = 489
+    Ieee_Std_Logic_Signed_Abs_Slv = 490
+    Ieee_Std_Logic_Signed_Mul_Slv_Slv = 491
+    Ieee_Std_Logic_Signed_Lt_Slv_Slv = 492
+    Ieee_Std_Logic_Signed_Lt_Slv_Int = 493
+    Ieee_Std_Logic_Signed_Lt_Int_Slv = 494
+    Ieee_Std_Logic_Signed_Le_Slv_Slv = 495
+    Ieee_Std_Logic_Signed_Le_Slv_Int = 496
+    Ieee_Std_Logic_Signed_Le_Int_Slv = 497
+    Ieee_Std_Logic_Signed_Gt_Slv_Slv = 498
+    Ieee_Std_Logic_Signed_Gt_Slv_Int = 499
+    Ieee_Std_Logic_Signed_Gt_Int_Slv = 500
+    Ieee_Std_Logic_Signed_Ge_Slv_Slv = 501
+    Ieee_Std_Logic_Signed_Ge_Slv_Int = 502
+    Ieee_Std_Logic_Signed_Ge_Int_Slv = 503
+    Ieee_Std_Logic_Signed_Eq_Slv_Slv = 504
+    Ieee_Std_Logic_Signed_Eq_Slv_Int = 505
+    Ieee_Std_Logic_Signed_Eq_Int_Slv = 506
+    Ieee_Std_Logic_Signed_Ne_Slv_Slv = 507
+    Ieee_Std_Logic_Signed_Ne_Slv_Int = 508
+    Ieee_Std_Logic_Signed_Ne_Int_Slv = 509
+    Ieee_Std_Logic_Signed_Conv_Integer = 510
+    Ieee_Std_Logic_Signed_Shl = 511
+    Ieee_Std_Logic_Signed_Shr = 512
+    Ieee_Std_Logic_Arith_Conv_Unsigned_Int = 513
+    Ieee_Std_Logic_Arith_Conv_Unsigned_Uns = 514
+    Ieee_Std_Logic_Arith_Conv_Unsigned_Sgn = 515
+    Ieee_Std_Logic_Arith_Conv_Unsigned_Log = 516
+    Ieee_Std_Logic_Arith_Conv_Integer_Int = 517
+    Ieee_Std_Logic_Arith_Conv_Integer_Uns = 518
+    Ieee_Std_Logic_Arith_Conv_Integer_Sgn = 519
+    Ieee_Std_Logic_Arith_Conv_Integer_Log = 520
+    Ieee_Std_Logic_Arith_Conv_Vector_Int = 521
+    Ieee_Std_Logic_Arith_Conv_Vector_Uns = 522
+    Ieee_Std_Logic_Arith_Conv_Vector_Sgn = 523
+    Ieee_Std_Logic_Arith_Conv_Vector_Log = 524
+    Ieee_Std_Logic_Arith_Ext = 525
+    Ieee_Std_Logic_Arith_Sxt = 526
+    Ieee_Std_Logic_Arith_Id_Uns_Uns = 527
+    Ieee_Std_Logic_Arith_Id_Sgn_Sgn = 528
+    Ieee_Std_Logic_Arith_Neg_Sgn_Sgn = 529
+    Ieee_Std_Logic_Arith_Abs_Sgn_Sgn = 530
+    Ieee_Std_Logic_Arith_Shl_Uns = 531
+    Ieee_Std_Logic_Arith_Shl_Sgn = 532
+    Ieee_Std_Logic_Arith_Shr_Uns = 533
+    Ieee_Std_Logic_Arith_Shr_Sgn = 534
+    Ieee_Std_Logic_Arith_Id_Uns_Slv = 535
+    Ieee_Std_Logic_Arith_Id_Sgn_Slv = 536
+    Ieee_Std_Logic_Arith_Neg_Sgn_Slv = 537
+    Ieee_Std_Logic_Arith_Abs_Sgn_Slv = 538
+    Ieee_Std_Logic_Arith_Mul_Uns_Uns_Uns = 539
+    Ieee_Std_Logic_Arith_Mul_Sgn_Sgn_Sgn = 540
+    Ieee_Std_Logic_Arith_Mul_Sgn_Uns_Sgn = 541
+    Ieee_Std_Logic_Arith_Mul_Uns_Sgn_Sgn = 542
+    Ieee_Std_Logic_Arith_Mul_Uns_Uns_Slv = 543
+    Ieee_Std_Logic_Arith_Mul_Sgn_Sgn_Slv = 544
+    Ieee_Std_Logic_Arith_Mul_Sgn_Uns_Slv = 545
+    Ieee_Std_Logic_Arith_Mul_Uns_Sgn_Slv = 546
+    Ieee_Std_Logic_Arith_Add_Uns_Uns_Uns = 547
+    Ieee_Std_Logic_Arith_Add_Sgn_Sgn_Sgn = 548
+    Ieee_Std_Logic_Arith_Add_Uns_Sgn_Sgn = 549
+    Ieee_Std_Logic_Arith_Add_Sgn_Uns_Sgn = 550
+    Ieee_Std_Logic_Arith_Add_Uns_Int_Uns = 551
+    Ieee_Std_Logic_Arith_Add_Int_Uns_Uns = 552
+    Ieee_Std_Logic_Arith_Add_Sgn_Int_Sgn = 553
+    Ieee_Std_Logic_Arith_Add_Int_Sgn_Sgn = 554
+    Ieee_Std_Logic_Arith_Add_Uns_Log_Uns = 555
+    Ieee_Std_Logic_Arith_Add_Log_Uns_Uns = 556
+    Ieee_Std_Logic_Arith_Add_Sgn_Log_Sgn = 557
+    Ieee_Std_Logic_Arith_Add_Log_Sgn_Sgn = 558
+    Ieee_Std_Logic_Arith_Add_Uns_Uns_Slv = 559
+    Ieee_Std_Logic_Arith_Add_Sgn_Sgn_Slv = 560
+    Ieee_Std_Logic_Arith_Add_Uns_Sgn_Slv = 561
+    Ieee_Std_Logic_Arith_Add_Sgn_Uns_Slv = 562
+    Ieee_Std_Logic_Arith_Add_Uns_Int_Slv = 563
+    Ieee_Std_Logic_Arith_Add_Int_Uns_Slv = 564
+    Ieee_Std_Logic_Arith_Add_Sgn_Int_Slv = 565
+    Ieee_Std_Logic_Arith_Add_Int_Sgn_Slv = 566
+    Ieee_Std_Logic_Arith_Add_Uns_Log_Slv = 567
+    Ieee_Std_Logic_Arith_Add_Log_Uns_Slv = 568
+    Ieee_Std_Logic_Arith_Add_Sgn_Log_Slv = 569
+    Ieee_Std_Logic_Arith_Add_Log_Sgn_Slv = 570
+    Ieee_Std_Logic_Arith_Sub_Uns_Uns_Uns = 571
+    Ieee_Std_Logic_Arith_Sub_Sgn_Sgn_Sgn = 572
+    Ieee_Std_Logic_Arith_Sub_Uns_Sgn_Sgn = 573
+    Ieee_Std_Logic_Arith_Sub_Sgn_Uns_Sgn = 574
+    Ieee_Std_Logic_Arith_Sub_Uns_Int_Uns = 575
+    Ieee_Std_Logic_Arith_Sub_Int_Uns_Uns = 576
+    Ieee_Std_Logic_Arith_Sub_Sgn_Int_Sgn = 577
+    Ieee_Std_Logic_Arith_Sub_Int_Sgn_Sgn = 578
+    Ieee_Std_Logic_Arith_Sub_Uns_Log_Uns = 579
+    Ieee_Std_Logic_Arith_Sub_Log_Uns_Uns = 580
+    Ieee_Std_Logic_Arith_Sub_Sgn_Log_Sgn = 581
+    Ieee_Std_Logic_Arith_Sub_Log_Sgn_Sgn = 582
+    Ieee_Std_Logic_Arith_Sub_Uns_Uns_Slv = 583
+    Ieee_Std_Logic_Arith_Sub_Sgn_Sgn_Slv = 584
+    Ieee_Std_Logic_Arith_Sub_Uns_Sgn_Slv = 585
+    Ieee_Std_Logic_Arith_Sub_Sgn_Uns_Slv = 586
+    Ieee_Std_Logic_Arith_Sub_Uns_Int_Slv = 587
+    Ieee_Std_Logic_Arith_Sub_Int_Uns_Slv = 588
+    Ieee_Std_Logic_Arith_Sub_Sgn_Int_Slv = 589
+    Ieee_Std_Logic_Arith_Sub_Int_Sgn_Slv = 590
+    Ieee_Std_Logic_Arith_Sub_Uns_Log_Slv = 591
+    Ieee_Std_Logic_Arith_Sub_Log_Uns_Slv = 592
+    Ieee_Std_Logic_Arith_Sub_Sgn_Log_Slv = 593
+    Ieee_Std_Logic_Arith_Sub_Log_Sgn_Slv = 594
+    Ieee_Std_Logic_Arith_Lt_Uns_Uns = 595
+    Ieee_Std_Logic_Arith_Lt_Sgn_Sgn = 596
+    Ieee_Std_Logic_Arith_Lt_Uns_Sgn = 597
+    Ieee_Std_Logic_Arith_Lt_Sgn_Uns = 598
+    Ieee_Std_Logic_Arith_Lt_Uns_Int = 599
+    Ieee_Std_Logic_Arith_Lt_Int_Uns = 600
+    Ieee_Std_Logic_Arith_Lt_Sgn_Int = 601
+    Ieee_Std_Logic_Arith_Lt_Int_Sgn = 602
+    Ieee_Std_Logic_Arith_Le_Uns_Uns = 603
+    Ieee_Std_Logic_Arith_Le_Sgn_Sgn = 604
+    Ieee_Std_Logic_Arith_Le_Uns_Sgn = 605
+    Ieee_Std_Logic_Arith_Le_Sgn_Uns = 606
+    Ieee_Std_Logic_Arith_Le_Uns_Int = 607
+    Ieee_Std_Logic_Arith_Le_Int_Uns = 608
+    Ieee_Std_Logic_Arith_Le_Sgn_Int = 609
+    Ieee_Std_Logic_Arith_Le_Int_Sgn = 610
+    Ieee_Std_Logic_Arith_Gt_Uns_Uns = 611
+    Ieee_Std_Logic_Arith_Gt_Sgn_Sgn = 612
+    Ieee_Std_Logic_Arith_Gt_Uns_Sgn = 613
+    Ieee_Std_Logic_Arith_Gt_Sgn_Uns = 614
+    Ieee_Std_Logic_Arith_Gt_Uns_Int = 615
+    Ieee_Std_Logic_Arith_Gt_Int_Uns = 616
+    Ieee_Std_Logic_Arith_Gt_Sgn_Int = 617
+    Ieee_Std_Logic_Arith_Gt_Int_Sgn = 618
+    Ieee_Std_Logic_Arith_Ge_Uns_Uns = 619
+    Ieee_Std_Logic_Arith_Ge_Sgn_Sgn = 620
+    Ieee_Std_Logic_Arith_Ge_Uns_Sgn = 621
+    Ieee_Std_Logic_Arith_Ge_Sgn_Uns = 622
+    Ieee_Std_Logic_Arith_Ge_Uns_Int = 623
+    Ieee_Std_Logic_Arith_Ge_Int_Uns = 624
+    Ieee_Std_Logic_Arith_Ge_Sgn_Int = 625
+    Ieee_Std_Logic_Arith_Ge_Int_Sgn = 626
+    Ieee_Std_Logic_Arith_Eq_Uns_Uns = 627
+    Ieee_Std_Logic_Arith_Eq_Sgn_Sgn = 628
+    Ieee_Std_Logic_Arith_Eq_Uns_Sgn = 629
+    Ieee_Std_Logic_Arith_Eq_Sgn_Uns = 630
+    Ieee_Std_Logic_Arith_Eq_Uns_Int = 631
+    Ieee_Std_Logic_Arith_Eq_Int_Uns = 632
+    Ieee_Std_Logic_Arith_Eq_Sgn_Int = 633
+    Ieee_Std_Logic_Arith_Eq_Int_Sgn = 634
+    Ieee_Std_Logic_Arith_Ne_Uns_Uns = 635
+    Ieee_Std_Logic_Arith_Ne_Sgn_Sgn = 636
+    Ieee_Std_Logic_Arith_Ne_Uns_Sgn = 637
+    Ieee_Std_Logic_Arith_Ne_Sgn_Uns = 638
+    Ieee_Std_Logic_Arith_Ne_Uns_Int = 639
+    Ieee_Std_Logic_Arith_Ne_Int_Uns = 640
+    Ieee_Std_Logic_Arith_Ne_Sgn_Int = 641
+    Ieee_Std_Logic_Arith_Ne_Int_Sgn = 642
+    Ieee_Std_Logic_Misc_And_Reduce_Slv = 643
+    Ieee_Std_Logic_Misc_And_Reduce_Suv = 644
+    Ieee_Std_Logic_Misc_Nand_Reduce_Slv = 645
+    Ieee_Std_Logic_Misc_Nand_Reduce_Suv = 646
+    Ieee_Std_Logic_Misc_Or_Reduce_Slv = 647
+    Ieee_Std_Logic_Misc_Or_Reduce_Suv = 648
+    Ieee_Std_Logic_Misc_Nor_Reduce_Slv = 649
+    Ieee_Std_Logic_Misc_Nor_Reduce_Suv = 650
+    Ieee_Std_Logic_Misc_Xor_Reduce_Slv = 651
+    Ieee_Std_Logic_Misc_Xor_Reduce_Suv = 652
+    Ieee_Std_Logic_Misc_Xnor_Reduce_Slv = 653
+    Ieee_Std_Logic_Misc_Xnor_Reduce_Suv = 654
 
 Get_Kind = libghdl.vhdl__nodes__get_kind
 Get_Location = libghdl.vhdl__nodes__get_location
diff --git a/src/vhdl/vhdl-ieee-numeric_std_unsigned.adb b/src/vhdl/vhdl-ieee-numeric_std_unsigned.adb
index e6fc03cf9..7d8edbb96 100644
--- a/src/vhdl/vhdl-ieee-numeric_std_unsigned.adb
+++ b/src/vhdl/vhdl-ieee-numeric_std_unsigned.adb
@@ -45,10 +45,31 @@ package body Vhdl.Ieee.Numeric_Std_Unsigned is
       end if;
    end Classify_Arg;
 
+   function Extract_Dyadic_Declaration (Decl : Iir; Arg1: Iir; Arg2: Iir)
+                                       return Iir_Predefined_Functions
+   is
+      Arg1_Kind, Arg2_Kind  : Arg_Kind;
+      Res : Iir_Predefined_Functions;
+   begin
+      Res := Iir_Predefined_None;
+      Classify_Arg (Arg1, Arg1_Kind);
+      Classify_Arg (Arg2, Arg2_Kind);
+      case Get_Identifier (Decl) is
+         when Name_To_Stdlogicvector =>
+            if Arg1_Kind = Arg_Int and Arg2_Kind = Arg_Int then
+               Res :=
+                 Iir_Predefined_Ieee_Numeric_Std_Unsigned_To_Slv_Nat_Nat_Slv;
+            end if;
+         when others =>
+            null;
+      end case;
+      return Res;
+   end Extract_Dyadic_Declaration;
+
    procedure Extract_Declaration (Decl : Iir)
    is
       Arg1, Arg2 : Iir;
-      Arg1_Kind  : Arg_Kind;
+      Arg1_Kind : Arg_Kind;
       Res : Iir_Predefined_Functions;
    begin
       Arg1 := Get_Interface_Declaration_Chain (Decl);
@@ -56,15 +77,13 @@ package body Vhdl.Ieee.Numeric_Std_Unsigned is
          raise Error;
       end if;
 
-      Res := Iir_Predefined_None;
-
-      Classify_Arg (Arg1, Arg1_Kind);
       Arg2 := Get_Chain (Arg1);
       if Is_Valid (Arg2) then
-         --  Dyadic function.
-         null;
+         Res := Extract_Dyadic_Declaration (Decl, Arg1, Arg2);
       else
          --  Monadic function.
+         Res := Iir_Predefined_None;
+         Classify_Arg (Arg1, Arg1_Kind);
          case Get_Identifier (Decl) is
             when Name_To_Integer =>
                pragma Assert (Arg1_Kind = Arg_Slv);
diff --git a/src/vhdl/vhdl-nodes.ads b/src/vhdl/vhdl-nodes.ads
index 9961127a1..29029f7e6 100644
--- a/src/vhdl/vhdl-nodes.ads
+++ b/src/vhdl/vhdl-nodes.ads
@@ -5882,6 +5882,7 @@ package Vhdl.Nodes is
 
       --  Numeric_Std_Unsigned (ieee2008)
       Iir_Predefined_Ieee_Numeric_Std_Unsigned_To_Integer_Slv_Nat,
+      Iir_Predefined_Ieee_Numeric_Std_Unsigned_To_Slv_Nat_Nat_Slv,
 
       --  Math_Real
       Iir_Predefined_Ieee_Math_Real_Ceil,