Drop old integer-gmp-0.5 from GHC source tree

This completes what c774b28f76ee4c220f7c1c9fd81585e0e3af0e8a (#9281)
started.  `integer-gmp-1.0` was added as an additional
`libraries/integer-gmp2` folder while retaining the ability to configure
GHC w/ the old `integer-gmp-0.5` to have a way back, and or the ability
to easily switch between old/new `integer-gmp` for benchmark/debugging
purposes.

This commit removes the old `libraries/integer-gmp` folder and moves
`libraries/integer-gmp2` into its place, while removing any mentions of
"gmp2" as well as the to support two different `integer-gmp` packages in
GHC's source-tree.

Reviewed By: austin

Differential Revision: https://phabricator.haskell.org/D769

1 files changed, 73 insertions, 0 deletions

diff --git a/libraries/integer-gmp/src/GHC/Integer.hs b/libraries/integer-gmp/src/GHC/Integer.hs
new file mode 100644
index 0000000000..ffd708bb93
--- /dev/null
+++ b/libraries/integer-gmp/src/GHC/Integer.hs
@@ -0,0 +1,73 @@
+{-# LANGUAGE CPP #-}
+{-# LANGUAGE MagicHash #-}
+{-# LANGUAGE NoImplicitPrelude #-}
+
+#include "MachDeps.h"
+
+-- |
+-- Module      :  GHC.Integer.Type
+-- Copyright   :  (c) Herbert Valerio Riedel 2014
+-- License     :  BSD3
+--
+-- Maintainer  :  ghc-devs@haskell.org
+-- Stability   :  provisional
+-- Portability :  non-portable (GHC Extensions)
+--
+-- The 'Integer' type.
+--
+-- This module exposes the /portable/ 'Integer' API.  See
+-- "GHC.Integer.GMP.Internals" for the @integer-gmp@-specific internal
+-- representation of 'Integer' as well as optimized GMP-specific
+-- operations.
+
+module GHC.Integer (
+    Integer,
+
+    -- * Construct 'Integer's
+    mkInteger, smallInteger, wordToInteger,
+#if WORD_SIZE_IN_BITS < 64
+    word64ToInteger, int64ToInteger,
+#endif
+    -- * Conversion to other integral types
+    integerToWord, integerToInt,
+#if WORD_SIZE_IN_BITS < 64
+    integerToWord64, integerToInt64,
+#endif
+
+    -- * Helpers for 'RealFloat' type-class operations
+    encodeFloatInteger, floatFromInteger,
+    encodeDoubleInteger, decodeDoubleInteger, doubleFromInteger,
+
+    -- * Arithmetic operations
+    plusInteger, minusInteger, timesInteger, negateInteger,
+    absInteger, signumInteger,
+
+    divModInteger, divInteger, modInteger,
+    quotRemInteger, quotInteger, remInteger,
+
+    -- * Comparison predicates
+    eqInteger,  neqInteger,  leInteger,  gtInteger,  ltInteger,  geInteger,
+    compareInteger,
+
+    -- ** 'Int#'-boolean valued versions of comparision predicates
+    --
+    -- | These operations return @0#@ and @1#@ instead of 'False' and
+    -- 'True' respectively.  See
+    -- <https://ghc.haskell.org/trac/ghc/wiki/PrimBool PrimBool wiki-page>
+    -- for more details
+    eqInteger#, neqInteger#, leInteger#, gtInteger#, ltInteger#, geInteger#,
+
+
+    -- * Bit-operations
+    andInteger, orInteger, xorInteger,
+
+    complementInteger,
+    shiftLInteger, shiftRInteger, testBitInteger,
+
+    -- * Hashing
+    hashInteger,
+    ) where
+
+import GHC.Integer.Type
+
+default ()