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| author | Xavier Leroy <xavier.leroy@college-de-france.fr> | 2019-07-05 15:38:45 +0200 |
|---|---|---|
| committer | Xavier Leroy <xavierleroy@users.noreply.github.com> | 2019-07-05 16:57:32 +0200 |
| commit | ea6807fdaeaa2e46e1c7471c91056fdc4736cc2f (patch) | |
| tree | 935ffec775bf57735982b9cf239c046c0e276f4d /backend/Selectionaux.ml | |
| parent | 998f3c5ff90f6230b722b6094761f5989beea0a5 (diff) | |
| download | compcert-kvx-ea6807fdaeaa2e46e1c7471c91056fdc4736cc2f.tar.gz compcert-kvx-ea6807fdaeaa2e46e1c7471c91056fdc4736cc2f.zip | |
Rename option `-ffavor-branchless` into `-Obranchless`
Easier to type, and consistent with `-Os` (optimize for smaller code /
optimize for fewer conditional branches).
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 |