| // RUN: llvm-tblgen -gen-register-info -I %p/../../include -I %p/Common %s | FileCheck %s |
| |
| include "llvm/Target/Target.td" |
| |
| let Namespace = "MyTarget" in { |
| def R0 : Register<"r0">; // base class BaseA |
| def R1 : Register<"r1">; // base class BaseA |
| def R2 : Register<"r2">; // base class BaseC |
| def R3 : Register<"r3">; // base class BaseC |
| def R4 : Register<"r4">; // base class BaseB |
| def R5 : Register<"r5">; // base class BaseB |
| def R6 : Register<"r6">; // no base class |
| } // Namespace = "MyTarget" |
| |
| |
| // BaseA and BaseB are equal ordered so enumeration order determines base class for overlaps |
| def BaseA : RegisterClass<"MyTarget", [i32], 32, (sequence "R%u", 0, 3)> { |
| let BaseClassOrder = 1; |
| } |
| def BaseB : RegisterClass<"MyTarget", [i32], 32, (sequence "R%u", 3, 5)> { |
| let BaseClassOrder = 1; |
| } |
| |
| // BaseC defined order overrides BaseA and BaseB |
| def BaseC : RegisterClass<"MyTarget", [i32], 32, (sequence "R%u", 2, 3)> { |
| let BaseClassOrder = 0; |
| } |
| |
| def MyTarget : Target; |
| |
| // CHECK: static const TargetRegisterClass *BaseClasses[4] = { |
| // CHECK-NEXT: nullptr, |
| // CHECK-NEXT: &MyTarget::BaseCRegClass, |
| // CHECK-NEXT: &MyTarget::BaseARegClass, |
| // CHECK-NEXT: &MyTarget::BaseBRegClass, |
| // CHECK-NEXT: } |
| // CHECK-NEXT: static const uint8_t Mapping[8] = { |
| // CHECK-NEXT: 0,2,2,1,1,3,3,0, }; |
