[flang] Flang relicensing changes for LLVM Apache 2.0 license

This changes the license information in many of the flang source files.
- Renamed LICENSE to LICENSE.txt.
- NVIDIA Copyright lines have been removed.
- Initial lines for files follow the LLVM coding convention (file name on the first line; Emacs mode information on the first line).
- License references have been replaced with the abridged LLVM text.
- License information was removed from the test files.
- No file header was placed on test files (these weren't in most LLVM test files).
- License information was added to documentation files where it was missing.

We did not add brief file summaries to the initial line.

See http://llvm.org/docs/DeveloperPolicy.html#new-llvm-project-license-framework
for a description of the new license.

See http://llvm.org/docs/CodingStandards.html#file-headers
for a description of the new LLVM standard file header.

Original-commit: flang-compiler/f18@add6cde
Reviewed-on: flang-compiler/f18#887

flang/CMakeLists.txt

@@ -1,16 +1,10 @@
-# Copyright (c) 2018-2019, NVIDIA CORPORATION.  All rights reserved.
+#===-- CMakeLists.txt ------------------------------------------------------===#
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# 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
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+#------------------------------------------------------------------------------#
 
 cmake_minimum_required(VERSION 3.9.0)
 

flang/README.md

@@ -1,5 +1,9 @@
-<!--
-Copyright (c) 2018-2019, NVIDIA CORPORATION.  All rights reserved.
+<!--===- README.md 
+  
+   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
+  
 -->
 
 # F18

flang/documentation/ArrayComposition.md

@@ -1,5 +1,9 @@
-<!--
-Copyright (c) 2019, NVIDIA CORPORATION.  All rights reserved.
+<!--===- documentation/ArrayComposition.md 
+  
+   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
+  
 -->
 
 This note attempts to describe the motivation for and design of an

flang/documentation/C++17.md

@@ -1,5 +1,9 @@
-<!--
-Copyright (c) 2018, NVIDIA CORPORATION.  All rights reserved.
+<!--===- documentation/C++17.md 
+  
+   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
+  
 -->
 
 ## C++14/17 features used in f18

flang/documentation/C++style.md

@@ -1,5 +1,9 @@
-<!--
-Copyright (c) 2018-2019, NVIDIA CORPORATION.  All rights reserved.
+<!--===- documentation/C++style.md 
+  
+   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
+  
 -->
 
 ## In brief:

flang/documentation/Calls.md

@@ -1,5 +1,9 @@
-<!--
-Copyright (c) 2019, NVIDIA CORPORATION.  All rights reserved.
+<!--===- documentation/Calls.md 
+  
+   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
+  
 -->
 
 ## Procedure reference implementation protocol

flang/documentation/ControlFlowGraph.md

@@ -1,5 +1,9 @@
-<!--
-Copyright (c) 2018, NVIDIA CORPORATION.  All rights reserved.
+<!--===- documentation/ControlFlowGraph.md 
+  
+   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
+  
 -->
 
 ## Concept

flang/documentation/Directives.md

@@ -1,5 +1,9 @@
-<!--
-Copyright (c) 2018, NVIDIA CORPORATION.  All rights reserved.
+<!--===- documentation/Directives.md 
+  
+   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
+  
 -->
 
 Compiler directives supported by F18

flang/documentation/Extensions.md

@@ -1,5 +1,9 @@
-<!--
-Copyright (c) 2018-2019, NVIDIA CORPORATION.  All rights reserved.
+<!--===- documentation/Extensions.md 
+  
+   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
+  
 -->
 
 As a general principle, this compiler will accept by default and

flang/documentation/FortranForCProgrammers.md

@@ -1,5 +1,9 @@
-<!--
-Copyright (c) 2018-2019, NVIDIA CORPORATION.  All rights reserved.
+<!--===- documentation/FortranForCProgrammers.md 
+  
+   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
+  
 -->
 
 Fortran For C Programmers

flang/documentation/FortranIR.md

@@ -1,3 +1,11 @@
+<!--===- documentation/FortranIR.md 
+  
+   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
+  
+-->
+
 # Design: Fortran IR
 
 ## Introduction

flang/documentation/Intrinsics.md

@@ -1,5 +1,9 @@
-<!--
-Copyright (c) 2018-2019, NVIDIA CORPORATION.  All rights reserved.
+<!--===- documentation/Intrinsics.md 
+  
+   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
+  
 -->
 
 # A categorization of standard (2018) and extended Fortran intrinsic procedures

flang/documentation/Investigating-FIR-as-an-MLIR-dialect.md

@@ -1,3 +1,11 @@
+<!--===- documentation/Investigating-FIR-as-an-MLIR-dialect.md 
+  
+   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
+  
+-->
+
 # Investigating FIR as an MLIR Dialect
 
 ## Introduction

flang/documentation/LabelResolution.md

@@ -1,3 +1,11 @@
+<!--===- documentation/LabelResolution.md 
+  
+   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
+  
+-->
+
 # Semantics: Resolving Labels and Construct Names
 
 ## Overview

flang/documentation/ModFiles.md

@@ -1,3 +1,11 @@
+<!--===- documentation/ModFiles.md 
+  
+   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
+  
+-->
+
 # Module Files
 
 Module files hold information from a module that is necessary to compile 

flang/documentation/OpenMP-4.5-grammar.txt

@@ -1,4 +1,11 @@
-# Copyright (c) 2018-2019, NVIDIA CORPORATION.  All rights reserved.
+#===-- documentation/OpenMP-4.5-grammar.txt --------------------------------===#
+#
+# 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
+#
+#------------------------------------------------------------------------------#
+
 # OpenMP 4.5 Specifications
 
 2 omp-directive -> sentinel directive-name [clause[ [,] clause]...]

flang/documentation/OpenMP-semantics.md

@@ -1,3 +1,11 @@
+<!--===- documentation/OpenMP-semantics.md 
+  
+   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
+  
+-->
+
 # OpenMP Semantic Analysis
 
 ## OpenMP for F18

flang/documentation/OptionComparison.md

@@ -1,5 +1,9 @@
-<!--
-Copyright (c) 2019, NVIDIA CORPORATION.  All rights reserved.
+<!--===- documentation/OptionComparison.md 
+  
+   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
+  
 -->
 
 # Compiler options

flang/documentation/Overview.md

@@ -1,5 +1,9 @@
-<!--
-Copyright (c) 2019, NVIDIA CORPORATION.  All rights reserved.
+<!--===- documentation/Overview.md 
+  
+   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
+  
 -->
 
 # Overview of Compiler Phases

flang/documentation/ParserCombinators.md

@@ -1,5 +1,9 @@
-<!--
-Copyright (c) 2018-2019, NVIDIA CORPORATION.  All rights reserved.
+<!--===- documentation/ParserCombinators.md 
+  
+   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
+  
 -->
 
 ## Concept

flang/documentation/Parsing.md

@@ -1,5 +1,9 @@
-<!--
-Copyright (c) 2018-2019, NVIDIA CORPORATION.  All rights reserved.
+<!--===- documentation/Parsing.md 
+  
+   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
+  
 -->
 
 The F18 Parser

flang/documentation/Preprocessing.md

@@ -1,5 +1,9 @@
-<!--
-Copyright (c) 2018-2019, NVIDIA CORPORATION.  All rights reserved.
+<!--===- documentation/Preprocessing.md 
+  
+   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
+  
 -->
 
 Fortran Preprocessing

flang/documentation/RuntimeDescriptor.md

@@ -1,5 +1,9 @@
-<!--
-Copyright (c) 2018, NVIDIA CORPORATION.  All rights reserved.
+<!--===- documentation/RuntimeDescriptor.md 
+  
+   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
+  
 -->
 
 ## Concept

flang/documentation/Semantics.md

@@ -1,5 +1,9 @@
-<!--
-Copyright (c) 2018-2019, NVIDIA CORPORATION.  All rights reserved.
+<!--===- documentation/Semantics.md 
+  
+   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
+  
 -->
 
 # Semantic Analysis

flang/documentation/f2018-grammar.txt

@@ -1,4 +1,10 @@
-# Copyright (c) 2018-2019, NVIDIA CORPORATION.  All rights reserved.
+#===-- documentation/f2018-grammar.txt -------------------------------------===#
+#
+# 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
+#
+#------------------------------------------------------------------------------#
 
 R0001 digit -> 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
 R0002 letter ->

flang/documentation/flang-c-style.el

@@ -1,3 +1,10 @@
+;;===-- documentation/flang-c-style.el ------------------------------------===;;
+;;
+;; 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
+;;
+;;----------------------------------------------------------------------------;;
 
 ;; Define a cc-mode style for editing C++ codes in Flang.
 ;;

flang/include/flang/CMakeLists.txt

@@ -1,14 +1,8 @@
-# Copyright (c) 2018, NVIDIA CORPORATION.  All rights reserved.
+#===-- include/flang/CMakeLists.txt ----------------------------------------===#
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# 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
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+#------------------------------------------------------------------------------#
 

flang/include/flang/Config/config.h.cmake

@@ -1,3 +1,11 @@
+#===-- include/flang/Config/config.h.cmake ---------------------------------===#
+#
+# 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
+#
+#------------------------------------------------------------------------------#
+
 /* This generated file is for internal use. Do not include it from headers. */
 
 #ifdef FLANG_CONFIG_H

flang/include/flang/ISO_Fortran_binding.h

@@ -1,16 +1,10 @@
-/* Copyright (c) 2018, NVIDIA CORPORATION.  All rights reserved.
+/*===-- include/flang/ISO_Fortran_binding.h -----------------------*- C++ -*-===
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * 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
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * -----------------------------------------------------------------------------
  */
 
 #ifndef CFI_ISO_FORTRAN_BINDING_H_

flang/lib/CMakeLists.txt

@@ -1,16 +1,10 @@
-# Copyright (c) 2018-2019, NVIDIA CORPORATION.  All rights reserved.
+#===-- lib/CMakeLists.txt --------------------------------------------------===#
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# 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
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+#------------------------------------------------------------------------------#
 
 add_subdirectory(common)
 add_subdirectory(evaluate)