32 lines · plain
1// RUN: llvm-tblgen --gen-register-info -I %p/../../include %s 2>&1 | FileCheck %s2// RUN: not llvm-tblgen --gen-register-info -I %p/../../include -DERROR %s 2>&1 | FileCheck -check-prefix=ERROR %s3 4// Check that there is no assertion when specifying unsupported5// CopyCost values on register classes. Check that negative CopyCost6// values are saturated to 255.7 8include "llvm/Target/Target.td"9 10// CHECK: extern const MCRegisterClass MyTargetMCRegisterClasses[] = {11// CHECK-NEXT: { GPR32, GPR32Bits, 0, 2, sizeof(GPR32Bits), MyTarget::GPR32RegClassID, 32, 1, true, false },12// CHECK-NEXT: { SPECIAL_CLASS, SPECIAL_CLASSBits, 6, 1, sizeof(SPECIAL_CLASSBits), MyTarget::SPECIAL_CLASSRegClassID, 32, 255, true, false },13// CHECK-NEXT: };14 15def MyTargetISA : InstrInfo;16def MyTarget : Target { let InstructionSet = MyTargetISA; }17 18def R0 : Register<"r0"> { let Namespace = "MyTarget"; }19def R1 : Register<"r1"> { let Namespace = "MyTarget"; }20def SPECIAL : Register<"special"> { let Namespace = "MyTarget"; }21 22// ERROR: :[[@LINE+1]]:5: error: 'CopyCost' must be an 8-bit value23def GPR32 : RegisterClass<"MyTarget", [i32], 32, (add R0, R1)> {24#ifdef ERROR25 let CopyCost = 256;26#endif27}28 29def SPECIAL_CLASS : RegisterClass<"MyTarget", [i32], 32, (add SPECIAL)> {30 let CopyCost = -1;31}32