diff --git a/llvm/docs/Reference.rst b/llvm/docs/Reference.rst
index c18b6d01375d..882d0dc9ab12 100644
--- a/llvm/docs/Reference.rst
+++ b/llvm/docs/Reference.rst
@@ -32,7 +32,6 @@ LLVM and API reference documentation.
    LangRef
    LibFuzzer
    MarkedUpDisassembly
-   MemorySSA
    MIRLangRef
    OptBisect
    ORCv2
@@ -41,7 +40,6 @@ LLVM and API reference documentation.
    SegmentedStacks
    StackMaps
    SpeculativeLoadHardening
-   SupportLibrary
    Statepoints
    SystemLibrary
    TestingGuide
@@ -58,6 +56,9 @@ API Reference
 `Doxygen generated documentation <http://llvm.org/doxygen/>`_
   (`classes <http://llvm.org/doxygen/inherits.html>`_)
 
+:doc:`HowToUseAttributes`
+  Answers some questions about the new Attributes infrastructure.
+
 `Documentation for Go bindings <http://godoc.org/llvm.org/llvm/bindings/go/llvm>`_
 
 :doc:`ORCv2`
@@ -67,76 +68,6 @@ API Reference
 LLVM Reference
 --------------
 
-:doc:`FaultMaps`
-  LLVM support for folding control flow into faulting machine instructions.
-
-:doc:`Atomics`
-  Information about LLVM's concurrency model.
-
-:doc:`ExceptionHandling`
-   This document describes the design and implementation of exception handling
-   in LLVM.
-
-:doc:`Extensions`
-  LLVM-specific extensions to tools and formats LLVM seeks compatibility with.
-
-:doc:`HowToSetUpLLVMStyleRTTI`
-  How to make ``isa<>``, ``dyn_cast<>``, etc. available for clients of your
-  class hierarchy.
-
-:doc:`BlockFrequencyTerminology`
-   Provides information about terminology used in the ``BlockFrequencyInfo``
-   analysis pass.
-
-:doc:`BranchWeightMetadata`
-   Provides information about Branch Prediction Information.
-
-:doc:`MemorySSA`
-   Information about the MemorySSA utility in LLVM, as well as how to use it.
-
-:doc:`Support Library <SupportLibrary>`
-   This document describes the LLVM Support Library (``lib/Support``) and
-   how to keep LLVM source code portable
-
-:doc:`GetElementPtr`
-  Answers to some very frequent questions about LLVM's most frequently
-  misunderstood instruction.
-
-:doc:`ScudoHardenedAllocator`
-  A library that implements a security-hardened `malloc()`.
-
-:doc:`GwpAsan`
-  A sampled heap memory error detection toolkit designed for production use.
-
-:doc:`Dependence Graphs <DependenceGraphs/index>`
-  A description of the design of the various dependence graphs such as
-  the DDG (Data Dependence Graph).
-
-:doc:`CFIVerify`
-  A description of the verification tool for Control Flow Integrity.
-
-:doc:`SpeculativeLoadHardening`
-  A description of the Speculative Load Hardening mitigation for Spectre v1.
-
-:doc:`SegmentedStacks`
-   This document describes segmented stacks and how they are used in LLVM.
-
-:doc:`MarkedUpDisassembly`
-   This document describes the optional rich disassembly output syntax.
-
-:doc:`HowToUseAttributes`
-  Answers some questions about the new Attributes infrastructure.
-
-:doc:`StackMaps`
-  LLVM support for mapping instruction addresses to the location of
-  values and allowing code to be patched.
-
-:doc:`Coroutines`
-  LLVM support for coroutines.
-
-:doc:`YamlIO`
-   A reference guide for using LLVM's YAML I/O library.
-
 ======================
 Command Line Utilities
 ======================
@@ -216,4 +147,68 @@ XRay
   High-level documentation of how to use XRay in LLVM.
 
 :doc:`XRayExample`
-  An example of how to debug an application with XRay.
\ No newline at end of file
+  An example of how to debug an application with XRay.
+
+=================
+Additional Topics
+=================
+
+:doc:`FaultMaps`
+  LLVM support for folding control flow into faulting machine instructions.
+
+:doc:`Atomics`
+  Information about LLVM's concurrency model.
+
+:doc:`ExceptionHandling`
+   This document describes the design and implementation of exception handling
+   in LLVM.
+
+:doc:`Extensions`
+  LLVM-specific extensions to tools and formats LLVM seeks compatibility with.
+
+:doc:`HowToSetUpLLVMStyleRTTI`
+  How to make ``isa<>``, ``dyn_cast<>``, etc. available for clients of your
+  class hierarchy.
+
+:doc:`BlockFrequencyTerminology`
+   Provides information about terminology used in the ``BlockFrequencyInfo``
+   analysis pass.
+
+:doc:`BranchWeightMetadata`
+   Provides information about Branch Prediction Information.
+
+:doc:`GetElementPtr`
+  Answers to some very frequent questions about LLVM's most frequently
+  misunderstood instruction.
+
+:doc:`ScudoHardenedAllocator`
+  A library that implements a security-hardened `malloc()`.
+
+:doc:`GwpAsan`
+  A sampled heap memory error detection toolkit designed for production use.
+
+:doc:`Dependence Graphs <DependenceGraphs/index>`
+  A description of the design of the various dependence graphs such as
+  the DDG (Data Dependence Graph).
+
+:doc:`CFIVerify`
+  A description of the verification tool for Control Flow Integrity.
+
+:doc:`SpeculativeLoadHardening`
+  A description of the Speculative Load Hardening mitigation for Spectre v1.
+
+:doc:`SegmentedStacks`
+   This document describes segmented stacks and how they are used in LLVM.
+
+:doc:`MarkedUpDisassembly`
+   This document describes the optional rich disassembly output syntax.
+
+:doc:`StackMaps`
+  LLVM support for mapping instruction addresses to the location of
+  values and allowing code to be patched.
+
+:doc:`Coroutines`
+  LLVM support for coroutines.
+
+:doc:`YamlIO`
+   A reference guide for using LLVM's YAML I/O library.
\ No newline at end of file
diff --git a/llvm/docs/UserGuides.rst b/llvm/docs/UserGuides.rst
index 5c035d1717d6..abaa98cc9e7e 100644
--- a/llvm/docs/UserGuides.rst
+++ b/llvm/docs/UserGuides.rst
@@ -37,6 +37,7 @@ intermediate LLVM representation.
    LinkTimeOptimization
    LoopTerminology
    MarkdownQuickstartTemplate
+   MemorySSA
    MergeFunctions
    MCJITDesignAndImplementation
    NVPTXUsage
@@ -44,8 +45,9 @@ intermediate LLVM representation.
    Passes
    ReportingGuide
    Remarks
-   StackSafetyAnalysis
    SourceLevelDebugging
+   StackSafetyAnalysis
+   SupportLibrary
    TableGen/index
    TableGenFundamentals
    Vectorizers
@@ -87,6 +89,10 @@ LLVM Builds and Distributions
 :doc:`Docker`
    A reference for using Dockerfiles provided with LLVM.
 
+:doc:`Support Library <SupportLibrary>`
+   This document describes the LLVM Support Library (``lib/Support``) and
+   how to keep LLVM source code portable
+
 Optimizations
 -------------
 
@@ -107,6 +113,9 @@ Optimizations
    Information on how to write a new alias analysis implementation or how to
    use existing analyses.
 
+:doc:`MemorySSA`
+   Information about the MemorySSA utility in LLVM, as well as how to use it.
+
 :doc:`LoopTerminology`
   A document describing Loops and associated terms as used in LLVM.