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Diffstat (limited to 'llvm/lib/CodeGen/PostRAHazardRecognizer.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/PostRAHazardRecognizer.cpp | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/PostRAHazardRecognizer.cpp b/llvm/lib/CodeGen/PostRAHazardRecognizer.cpp index a2c8c757222..4f88f4d3dd6 100644 --- a/llvm/lib/CodeGen/PostRAHazardRecognizer.cpp +++ b/llvm/lib/CodeGen/PostRAHazardRecognizer.cpp @@ -1,3 +1,16 @@ +//===----- PostRAHazardRecognizer.cpp - hazard recognizer -----------------===// +// +// 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 +// +//===----------------------------------------------------------------------===// +// +/// \file +/// This runs the hazard recognizer and emits noops when necessary. This +/// gives targets a way to run the hazard recognizer without running one of +/// the schedulers. Example use cases for this pass would be: +/// /// - Targets that need the hazard recognizer to be run at -O0. /// - Targets that want to guarantee that hazards at the beginning of /// scheduling regions are handled correctly. The post-RA scheduler is |
