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| author | Richard Smith <richard-llvm@metafoo.co.uk> | 2019-09-13 02:20:00 +0000 |
|---|---|---|
| committer | Richard Smith <richard-llvm@metafoo.co.uk> | 2019-09-13 02:20:00 +0000 |
| commit | 91e6928464113135f0deff4aa476bab560b1bb14 (patch) | |
| tree | 01ae10e998ebcde1cccfdd5ee3ea8f25b5e289a8 /include/clang/Driver | |
| parent | 2bef3ea48658ec42d7e4a0cff421a3c7f8c0375a (diff) | |
| download | clang-91e6928464113135f0deff4aa476bab560b1bb14.tar.gz | |
For PR17164: split -fno-lax-vector-conversion into three different
levels:
-- none: no lax vector conversions [new GCC default]
-- integer: only conversions between integer vectors [old GCC default]
-- all: all conversions between same-size vectors [Clang default]
For now, Clang still defaults to "all" mode, but per my proposal on
cfe-dev (2019-04-10) the default will be changed to "integer" as soon as
that doesn't break lots of testcases. (Eventually I'd like to change the
default to "none" to match GCC and general sanity.)
Following GCC's behavior, the driver flag -flax-vector-conversions is
translated to -flax-vector-conversions=integer.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@371805 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/clang/Driver')
| -rw-r--r-- | include/clang/Driver/Options.td | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/include/clang/Driver/Options.td b/include/clang/Driver/Options.td index 57bab1e1c4..7423f92046 100644 --- a/include/clang/Driver/Options.td +++ b/include/clang/Driver/Options.td @@ -1274,7 +1274,10 @@ def fno_fine_grained_bitfield_accesses : Flag<["-"], HelpText<"Use large-integer access for consecutive bitfield runs.">; def flat__namespace : Flag<["-"], "flat_namespace">; -def flax_vector_conversions : Flag<["-"], "flax-vector-conversions">, Group<f_Group>; +def flax_vector_conversions_EQ : Joined<["-"], "flax-vector-conversions=">, Group<f_Group>, + HelpText<"Enable implicit vector bit-casts">, Values<"none,integer,all">, Flags<[CC1Option]>; +def flax_vector_conversions : Flag<["-"], "flax-vector-conversions">, Group<f_Group>, + Alias<flax_vector_conversions_EQ>, AliasArgs<["integer"]>; def flimited_precision_EQ : Joined<["-"], "flimited-precision=">, Group<f_Group>; def fapple_link_rtlib : Flag<["-"], "fapple-link-rtlib">, Group<f_Group>, HelpText<"Force linking the clang builtins runtime library">; @@ -1448,7 +1451,7 @@ def fno_experimental_new_pass_manager : Flag<["-"], "fno-experimental-new-pass-m def fveclib : Joined<["-"], "fveclib=">, Group<f_Group>, Flags<[CC1Option]>, HelpText<"Use the given vector functions library">, Values<"Accelerate,MASSV,SVML,none">; def fno_lax_vector_conversions : Flag<["-"], "fno-lax-vector-conversions">, Group<f_Group>, - HelpText<"Disallow implicit conversions between vectors with a different number of elements or different element types">, Flags<[CC1Option]>; + Alias<flax_vector_conversions_EQ>, AliasArgs<["none"]>; def fno_merge_all_constants : Flag<["-"], "fno-merge-all-constants">, Group<f_Group>, HelpText<"Disallow merging of constants">; def fno_modules : Flag <["-"], "fno-modules">, Group<f_Group>, |