diff options
Diffstat (limited to 'libraries/ghc-prim')
| -rw-r--r-- | libraries/ghc-prim/changelog.md | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/libraries/ghc-prim/changelog.md b/libraries/ghc-prim/changelog.md index 411d118aa1..cf14d21c81 100644 --- a/libraries/ghc-prim/changelog.md +++ b/libraries/ghc-prim/changelog.md @@ -27,6 +27,16 @@ reverses the order of its bits e.g. `0b110001` becomes `0b100011`. These primitives use optimized machine instructions when available. +- Add Int# multiplication primop: + + timesInt2# :: Int# -> Int# -> (# Int#, Int#, Int# #) + + `timesInt2#` computes the multiplication of its two parameters and returns a + triple (isHighNeeded,high,low) where high and low are respectively the high + and low bits of the double-word result. isHighNeeded is a cheap way to test + if the high word is a sign-extension of the low word (isHighNeeded = 0#) or + not (isHighNeeded = 1#). + ## 0.6.0 - Shipped with GHC 8.8.1 |