6024e5c395
clang 20.0.0 (based on r547379) from build 12806354. Bug: http://b/379133546 Test: N/A Change-Id: I2eb8938af55d809de674be63cb30cf27e801862b Upstream-Commit: ad834e67b1105d15ef907f6255d4c96e8e733f57
31 lines
1.0 KiB
C++
31 lines
1.0 KiB
C++
//===- Uniformity.h --------------------------------------*- C++ -*--------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_ADT_UNIFORMITY_H
|
|
#define LLVM_ADT_UNIFORMITY_H
|
|
|
|
namespace llvm {
|
|
|
|
/// Enum describing how instructions behave with respect to uniformity and
|
|
/// divergence, to answer the question: if the same instruction is executed by
|
|
/// two threads in a convergent set of threads, will its result value(s) be
|
|
/// uniform, i.e. the same on both threads?
|
|
enum class InstructionUniformity {
|
|
/// The result values are uniform if and only if all operands are uniform.
|
|
Default,
|
|
|
|
/// The result values are always uniform.
|
|
AlwaysUniform,
|
|
|
|
/// The result values can never be assumed to be uniform.
|
|
NeverUniform
|
|
};
|
|
|
|
} // namespace llvm
|
|
#endif // LLVM_ADT_UNIFORMITY_H
|