[commit: ghc] master: primops: Drop documentation for WORD_SIZE_IN_BITS < 32 (7a63f75)

[git at git.haskell.org]

Repository : ssh://git@git.haskell.org/ghc

On branch  : master
Link       : http://ghc.haskell.org/trac/ghc/changeset/7a63f75353d73743d7c57bbbee701f67210a64de/ghc

>---------------------------------------------------------------

commit 7a63f75353d73743d7c57bbbee701f67210a64de
Author: Chai T. Rex <ChaiTRex at users.noreply.github.com>
Date:   Wed Aug 15 16:37:55 2018 -0400

    primops: Drop documentation for WORD_SIZE_IN_BITS < 32
    
    Removes documentation suggesting that 30 and 31-bit code generation is supported
    (in support of https://github.com/ghc/ghc/commit/290889927244c79479c4347dfa6c851a134dd6e0).


>---------------------------------------------------------------

7a63f75353d73743d7c57bbbee701f67210a64de
 compiler/prelude/primops.txt.pp | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/compiler/prelude/primops.txt.pp b/compiler/prelude/primops.txt.pp
index a658c51..df92bfa 100644
--- a/compiler/prelude/primops.txt.pp
+++ b/compiler/prelude/primops.txt.pp
@@ -91,10 +91,11 @@ section "The word size story."
          This is normally set based on the {\tt config.h} parameter
          {\tt SIZEOF\_HSWORD}, i.e., 32 bits on 32-bit machines, 64
          bits on 64-bit machines.  However, it can also be explicitly
-         set to a smaller number, e.g., 31 bits, to allow the
+         set to a smaller number than 64, e.g., 62 bits, to allow the
          possibility of using tag bits. Currently GHC itself has only
-         32-bit and 64-bit variants, but 30 or 31-bit code can be
+         32-bit and 64-bit variants, but 61, 62, or 63-bit code can be
          exported as an external core file for use in other back ends.
+         30 and 31-bit code is no longer supported.
 
          GHC also implements a primitive unsigned integer type {\tt
          Word\#} which always has the same number of bits as {\tt
@@ -179,7 +180,7 @@ primop   OrdOp   "ord#"  GenPrimOp   Char# -> Int#
 
 ------------------------------------------------------------------------
 section "Int#"
-        {Operations on native-size integers (30+ bits).}
+        {Operations on native-size integers (32+ bits).}
 ------------------------------------------------------------------------
 
 primtype Int#
@@ -316,7 +317,7 @@ primop   ISrlOp   "uncheckedIShiftRL#" GenPrimOp Int# -> Int# -> Int#
 
 ------------------------------------------------------------------------
 section "Word#"
-        {Operations on native-sized unsigned words (30+ bits).}
+        {Operations on native-sized unsigned words (32+ bits).}
 ------------------------------------------------------------------------
 
 primtype Word#