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Diffstat (limited to 'backend/Selectionaux.ml')
| -rw-r--r-- | backend/Selectionaux.ml | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/backend/Selectionaux.ml b/backend/Selectionaux.ml index de8127c6..4ca7dd21 100644 --- a/backend/Selectionaux.ml +++ b/backend/Selectionaux.ml @@ -80,10 +80,10 @@ let fast_cmove ty = assert false (* The if-conversion heuristic depend on the - -fif-conversion and -ffavor-branchless flags. + -fif-conversion and -Obranchless flags. With [-fno-if-conversion] or [-0O], if-conversion is turned off entirely. -With [-ffavor-branchless], if-conversion is performed whenever semantically +With [-Obranchless], if-conversion is performed whenever semantically correct, regardless of how much it could cost. Otherwise (and by default), optimization is performed when it seems beneficial. @@ -106,7 +106,7 @@ instructions from the first branch. let if_conversion_heuristic cond ifso ifnot ty = if not !Clflags.option_fifconversion then false else - if !Clflags.option_ffavor_branchless then true else + if !Clflags.option_Obranchless then true else if not (fast_cmove ty) then false else let c1 = cost_expr ifso and c2 = cost_expr ifnot in c1 + c2 <= 24 && abs (c1 - c2) <= 8 |