[PATCH] D120067: [flang][docs] Update the top "doc" page

[Andrzej Warzynski via Phabricator via llvm-commits]

awarzynski created this revision.
awarzynski added reviewers: richard.barton.arm, PeteSteinfeld, Leporacanthicus, rovka.
Herald added a subscriber: arphaman.
Herald added a reviewer: sscalpone.
Herald added a project: Flang.
awarzynski requested review of this revision.
Herald added a reviewer: jdoerfert.
Herald added subscribers: llvm-commits, sstefan1, jdoerfert.
Herald added a project: LLVM.

- Added a note about "Classic Flang"
- sorted entries in ToC


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D120067

Files:
  flang/docs/index.md


Index: flang/docs/index.md
===================================================================
--- flang/docs/index.md
+++ flang/docs/index.md
@@ -1,6 +1,12 @@
 # Welcome to Flang's documentation
 
-Flang is LLVM's Fortran frontend
+Flang is LLVM's Fortran frontend. It is often referred to as "LLVM Flang" to
+differentiate itself from ["Classic
+Flang"](https://github.com/flang-compiler/flang) - these are two separate and
+independent Fortran frontends. LLVM Flang is under active development. While it
+is capable of generating executables for a number of examples, some
+functionality is still missing. See [GettingInvolved](GettingInvolved) for tips
+on how to get in touch with us and to learn more about the current status.
 
 ```eval_rst
 .. toctree::
@@ -15,12 +21,12 @@
 .. toctree::
    :titlesonly:
 
-   GettingInvolved
-   FortranForCProgrammers
-   C++style
    C++17
-   PullRequestChecklist
+   C++style
+   FortranForCProgrammers
+   GettingInvolved
    ImplementingASemanticCheck
+   PullRequestChecklist
 ```
 
 # Design Documents
@@ -29,31 +35,32 @@
 .. toctree::
    :titlesonly:
 
-   Overview
-   Preprocessing
-   Parsing
-   LabelResolution
-   ModFiles
-   Semantics
-   OpenMP-semantics
+   ArrayComposition
+   BijectiveInternalNameUniquing
+   Calls
+   Character
    ControlFlowGraph
-   FortranIR
-   IORuntimeInternals
-   f2018-grammar.md
-   OpenMP-4.5-grammar.md
    Directives
+   DoConcurrent
    Extensions
+   FlangDriver
+   FortranIR
+   FortranLLVMTestSuite
+   IORuntimeInternals
    Intrinsics
+   LabelResolution
+   ModFiles
+   OpenMP-4.5-grammar.md
+   OpenMP-semantics
    OptionComparison
+   Overview
    ParserCombinators
+   Parsing
+   Preprocessing
    RuntimeDescriptor
    RuntimeTypeInfo
-   Calls
-   Character
-   ArrayComposition
-   BijectiveInternalNameUniquing
-   DoConcurrent
-   FortranLLVMTestSuite
+   Semantics
+   f2018-grammar.md
 ```
 
 # Indices and tables


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