llvm/utils/TableGen/Types.h
Daniel Sanders b313c742da Check that emitted instructions meet their predicates on all targets except ARM, Mips, and X86.
Summary:
* ARM is omitted from this patch because this check appears to expose bugs in this target.
* Mips is omitted from this patch because this check either detects bugs or deliberate
  emission of instructions that don't satisfy their predicates. One deliberate
  use is the SYNC instruction where the version with an operand is correctly
  defined as requiring MIPS32 while the version without an operand is defined
  as an alias of 'SYNC 0' and requires MIPS2.
* X86 is omitted from this patch because it doesn't use the tablegen-erated
  MCCodeEmitter infrastructure.

Patches for ARM and Mips will follow.

Depends on D25617

Reviewers: tstellarAMD, jmolloy

Subscribers: wdng, jmolloy, aemerson, rengolin, arsenm, jyknight, nemanjai, nhaehnle, tstellarAMD, llvm-commits

Differential Revision: https://reviews.llvm.org/D25618

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@287439 91177308-0d34-0410-b5e6-96231b3b80d8
2016-11-19 13:05:44 +00:00

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C++

//===- Types.h - Helper for the selection of C++ types. ---------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_UTILS_TABLEGEN_TYPES_H
#define LLVM_UTILS_TABLEGEN_TYPES_H
#include <cstdint>
namespace llvm {
/// Returns the smallest unsigned integer type that can hold the given range.
/// MaxSize indicates the largest size of integer to consider (in bits) and only
/// supports values of at least 32.
const char *getMinimalTypeForRange(uint64_t Range, unsigned MaxSize = 64);
/// Returns the smallest unsigned integer type that can hold the given bitfield.
const char *getMinimalTypeForEnumBitfield(uint64_t Size);
}
#endif