Revert "Add more primops for atomic ops on byte arrays"

This commit caused the register allocator to fail on i386.

This reverts commit d8abf85f8ca176854e9d5d0b12371c4bc402aac3 and
04dd7cb3423f1940242fdfe2ea2e3b8abd68a177 (the second being a fix to
the first).

1 files changed, 12 insertions, 0 deletions

diff --git a/rts/PrimOps.cmm b/rts/PrimOps.cmm
index 5f04a6d732..4d7baca824 100644
--- a/rts/PrimOps.cmm
+++ b/rts/PrimOps.cmm
@@ -151,6 +151,18 @@ stg_casIntArrayzh( gcptr arr, W_ ind, W_ old, W_ new )
 }
 
 
+stg_fetchAddIntArrayzh( gcptr arr, W_ ind, W_ incr )
+/* MutableByteArray# s -> Int# -> Int# -> State# s -> (# State# s, Int# #) */
+{
+    W_ p, h;
+
+    p = arr + SIZEOF_StgArrWords + WDS(ind);
+    (h) = ccall atomic_inc(p, incr);
+
+    return(h);
+}
+
+
 stg_newArrayzh ( W_ n /* words */, gcptr init )
 {
     W_ words, size, p;