revert r340135: [CodeGen] add rotate builtins

At least a couple of bots (PPC only?) are showing the compiler dying while trying to compile:
http://lab.llvm.org:8011/builders/clang-ppc64be-linux-multistage/builds/11065/steps/build%20stage%201/logs/stdio
http://lab.llvm.org:8011/builders/clang-ppc64be-linux-lnt/builds/18267/steps/build%20stage%201/logs/stdio

llvm-svn: 340136

1 files changed, 0 insertions, 64 deletions

diff --git a/clang/docs/LanguageExtensions.rst b/clang/docs/LanguageExtensions.rst
index d562519f0ca4..1aef265a8589 100644
--- a/clang/docs/LanguageExtensions.rst
+++ b/clang/docs/LanguageExtensions.rst
@@ -1739,70 +1739,6 @@ The '``__builtin_bitreverse``' family of builtins is used to reverse
 the bitpattern of an integer value; for example ``0b10110110`` becomes
 ``0b01101101``.
 
-``__builtin_rotateleft``
-------------------------
-
-* ``__builtin_rotateleft8``
-* ``__builtin_rotateleft16``
-* ``__builtin_rotateleft32``
-* ``__builtin_rotateleft64``
-
-**Syntax**:
-
-.. code-block:: c++
-
-     __builtin_rotateleft32(x, y)
-
-**Examples**:
-
-.. code-block:: c++
-
-      uint8_t rot_x = __builtin_rotateleft8(x, y);
-      uint16_t rot_x = __builtin_rotateleft16(x, y);
-      uint32_t rot_x = __builtin_rotateleft32(x, y);
-      uint64_t rot_x = __builtin_rotateleft64(x, y);
-
-**Description**:
-
-The '``__builtin_rotateleft``' family of builtins is used to rotate
-the bits in the first argument by the amount in the second argument. 
-For example, ``0b10000110`` rotated left by 11 becomes ``0b00110100``.
-The shift value is treated as an unsigned amount modulo the size of
-the arguments. Both arguments and the result have the bitwidth specified
-by the name of the builtin.
-
-``__builtin_rotateright``
-------------------------
-
-* ``__builtin_rotateright8``
-* ``__builtin_rotateright16``
-* ``__builtin_rotateright32``
-* ``__builtin_rotateright64``
-
-**Syntax**:
-
-.. code-block:: c++
-
-     __builtin_rotateright32(x, y)
-
-**Examples**:
-
-.. code-block:: c++
-
-      uint8_t rot_x = __builtin_rotateright8(x, y);
-      uint16_t rot_x = __builtin_rotateright16(x, y);
-      uint32_t rot_x = __builtin_rotateright32(x, y);
-      uint64_t rot_x = __builtin_rotateright64(x, y);
-
-**Description**:
-
-The '``__builtin_rotateright``' family of builtins is used to rotate
-the bits in the first argument by the amount in the second argument. 
-For example, ``0b10000110`` rotated right by 3 becomes ``0b11010000``.
-The shift value is treated as an unsigned amount modulo the size of
-the arguments. Both arguments and the result have the bitwidth specified
-by the name of the builtin.
-
 ``__builtin_unreachable``
 -------------------------