Fix common typos in the docs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193632 91177308-0d34-0410-b5e6-96231b3b80d8

docs/HowToBuildOnARM.rst

@@ -21,7 +21,7 @@ on the ARMv6 and ARMv7 architectures and may be inapplicable to older chips.
 #. If you are building LLVM/Clang on an ARM board with 1G of memory or less,
    please use ``gold`` rather then GNU ``ld``.
    Building LLVM/Clang with ``--enable-optimized``
-   is prefered since it consumes less memory. Otherwise, the building
+   is preferred since it consumes less memory. Otherwise, the building
    process will very likely fail due to insufficient memory. In any
    case it is probably a good idea to set up a swap partition.
 

docs/LangRef.rst

@@ -8818,7 +8818,7 @@ level without an intrinsic, one would need to create additional basic blocks to
 handle the success/failure cases. This makes it difficult to stop the stack
 protector check from disrupting sibling tail calls in Codegen. With this
 intrinsic, we are able to generate the stack protector basic blocks late in
-codegen after the tail call decision has occured.
+codegen after the tail call decision has occurred.
 
 '``llvm.objectsize``' Intrinsic
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

docs/SourceLevelDebugging.rst

@@ -295,7 +295,7 @@ Subprogram descriptors
     i32,      ;; Index into a virtual function
     metadata, ;; indicates which base type contains the vtable pointer for the
               ;; derived class
-    i32,      ;; Flags - Artifical, Private, Protected, Explicit, Prototyped.
+    i32,      ;; Flags - Artificial, Private, Protected, Explicit, Prototyped.
     i1,       ;; isOptimized
     Function * , ;; Pointer to LLVM function
     metadata, ;; Lists function template parameters

docs/yaml2obj.rst

@@ -38,7 +38,7 @@ Here's a sample COFF file.
       ComplexType: IMAGE_SYM_DTYPE_NULL # (0)
       StorageClass: IMAGE_SYM_CLASS_STATIC # (3)
       NumberOfAuxSymbols: 1
-      AuxillaryData:
+      AuxiliaryData:
         "\x24\x00\x00\x00\x03\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00" # |$.................|
 
     - Name: _main