|  | // RUN: llvm-tblgen --gen-fast-isel -I %p/../../include %s 2>&1 | FileCheck %s | 
|  |  | 
|  | include "llvm/Target/Target.td" | 
|  |  | 
|  | //===- Define the necessary boilerplate for our test target. --------------===// | 
|  |  | 
|  | def MyTargetISA : InstrInfo; | 
|  | def MyTarget : Target { let InstructionSet = MyTargetISA; } | 
|  |  | 
|  | def R0 : Register<"r0"> { let Namespace = "MyTarget"; } | 
|  | def R1 : Register<"r0"> { let Namespace = "MyTarget"; } | 
|  | def GPR32M : RegisterClass<"MyTarget", [i32], 32, (add R0)>; | 
|  | def GPR32MOp : RegisterOperand<GPR32M>; | 
|  |  | 
|  | def GPR32 : RegisterClass<"MyTarget", [i32], 32, (add R0, R1)>; | 
|  | def GPR32Op : RegisterOperand<GPR32>; | 
|  |  | 
|  | class I<dag OOps, dag IOps, list<dag> Pat> : Instruction { | 
|  | let Namespace = "MyTarget"; | 
|  | let OutOperandList = OOps; | 
|  | let InOperandList = IOps; | 
|  | let Pattern = Pat; | 
|  | } | 
|  |  | 
|  | def HasA : Predicate<"Subtarget->hasA()">; | 
|  |  | 
|  | let Predicates = [HasA] in { | 
|  |  | 
|  | def ADD : I<(outs GPR32Op:$rd), (ins GPR32Op:$rs, GPR32Op:$rt), | 
|  | [(set GPR32Op:$rd, (add GPR32Op:$rs, GPR32Op:$rt))]>; | 
|  |  | 
|  | let FastISelShouldIgnore = 1 in | 
|  | def ADD_M : I<(outs GPR32MOp:$rd), (ins GPR32MOp:$rs, GPR32MOp:$rt), | 
|  | [(set GPR32MOp:$rd, (add GPR32MOp:$rs, GPR32MOp:$rt))]>; | 
|  | } | 
|  |  | 
|  | // CHECK-NOT: error: Duplicate predicate in FastISel table! |