[project @ 2000-09-06 10:21:17 by simonmar]

recode primOpOkForSpeculation in terms of primOpIsCheap and primOpCanFail.

diff --git a/ghc/compiler/prelude/PrimOp.lhs b/ghc/compiler/prelude/PrimOp.lhs
index e6ced5a..9e946d8 100644 (file)
--- a/ghc/compiler/prelude/PrimOp.lhs
+++ b/ghc/compiler/prelude/PrimOp.lhs
@@ -365,7 +365,7 @@ See also @primOpIsCheap@ (below).
 primOpOkForSpeculation :: PrimOp -> Bool
        -- See comments with CoreUtils.exprOkForSpeculation
 primOpOkForSpeculation op 
-  = not (primOpCanFail op || primOpHasSideEffects op || primOpOutOfLine op)
+  = primOpIsCheap op && not (primOpCanFail op)
 \end{code}