llvm-project/llvm/test/TableGen/HwModeSelect.td
Rahul Joshi aca08a8515
[TableGen] Add assert to validate Objects list for HwModeSelect (#123794)
- Bail out of TableGen if any asserts fail before running the backend. 
- Add asserts to validate that the `Objects` and `Modes` lists for
various `HwModeSelect` subclasses are of same length.
 - Eliminate equivalent check in CodeGenHWModes.cpp
2025-01-27 13:44:44 -08:00

32 lines
1.2 KiB
TableGen

// RUN: not llvm-tblgen -gen-dag-isel -I %p/../../include %s 2>&1 | FileCheck %s -DFILE=%s
// The HwModeSelect class is intended to serve as a base class for other
// classes that are then used to select a value based on the HW mode.
// It contains a list of HW modes, and a derived class should provide a
// list of corresponding values.
// These two lists must have the same size. Make sure that a violation of
// this requirement is diagnosed.
include "llvm/Target/Target.td"
def TestTargetInstrInfo : InstrInfo;
def TestTarget : Target {
let InstructionSet = TestTargetInstrInfo;
}
def TestReg : Register<"testreg">;
def TestClass : RegisterClass<"TestTarget", [i32], 32, (add TestReg)>;
def HasFeat1 : Predicate<"Subtarget->hasFeat1()">;
def HasFeat2 : Predicate<"Subtarget->hasFeat2()">;
def TestMode1 : HwMode<"+feat1", [HasFeat1]>;
def TestMode2 : HwMode<"+feat2", [HasFeat2]>;
// CHECK: error: assertion failed: The Objects and Modes lists must be the same length
// CHECK: [[FILE]]:[[@LINE+1]]:5: error: assertion failed in this record
def BadDef : ValueTypeByHwMode<[TestMode1, TestMode2, DefaultMode],
[i8, i16, i32, i64]>;