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author | Sanjay Patel <spatel@rotateright.com> | 2018-08-19 15:31:42 +0000 |
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committer | Sanjay Patel <spatel@rotateright.com> | 2018-08-19 15:31:42 +0000 |
commit | 6e672c87dfa10d1a96263a52cae8a0d5572754cf (patch) | |
tree | 2fe2ab90da7d1b889d4e210c5d6b85933eeeafea /docs | |
parent | 276876b8b35fb90cf33969410f06cb699365fda2 (diff) | |
download | clang-6e672c87dfa10d1a96263a52cae8a0d5572754cf.tar.gz |
revert r340137: [CodeGen] add rotate builtins
At least a couple of bots (gcc host compiler on PPC only?) are showing the compiler dying while trying to compile.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@340138 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'docs')
-rw-r--r-- | docs/LanguageExtensions.rst | 64 |
1 files changed, 0 insertions, 64 deletions
diff --git a/docs/LanguageExtensions.rst b/docs/LanguageExtensions.rst index 894b7504fd..1aef265a85 100644 --- a/docs/LanguageExtensions.rst +++ b/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`` ------------------------- |