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| author | Fangrui Song <maskray@google.com> | 2020-01-14 10:46:33 -0800 |
|---|---|---|
| committer | Fangrui Song <maskray@google.com> | 2020-01-14 12:09:13 -0800 |
| commit | 5d1b3ba687690bbb37f911f66a2c2c5f19d60032 (patch) | |
| tree | 0b52070f9d5690100bee6418830a15919a4a2a48 | |
| parent | 2d4571bf3060f8f3d8417a0ec55e21a280158069 (diff) | |
| download | bcm5719-llvm-5d1b3ba687690bbb37f911f66a2c2c5f19d60032.tar.gz bcm5719-llvm-5d1b3ba687690bbb37f911f66a2c2c5f19d60032.zip | |
[Driver] Ignore -fno-semantic-interposition
Fedora wants to build projects with -fno-semantic-interposition (e.g.
https://fedoraproject.org/wiki/Changes/PythonNoSemanticInterpositionSpeedup),
which is supported by GCC>=5.
Clang's current behavior is similar to -fno-semantic-interposition and
the end goal is to make it more so
(https://lists.llvm.org/pipermail/llvm-dev/2016-November/107625.html).
Ignore this option.
We should let users know -fsemantic-interposition is not currently
supported, so it should remain a hard error.
Reviewed By: serge-sans-paille
Differential Revision: https://reviews.llvm.org/D72724
| -rw-r--r-- | clang/include/clang/Driver/Options.td | 1 | ||||
| -rw-r--r-- | clang/test/Driver/clang_f_opts.c | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/clang/include/clang/Driver/Options.td b/clang/include/clang/Driver/Options.td index 71b257094a9..385ddbf5e40 100644 --- a/clang/include/clang/Driver/Options.td +++ b/clang/include/clang/Driver/Options.td @@ -3258,6 +3258,7 @@ defm inline_small_functions : BooleanFFlag<"inline-small-functions">, defm ipa_cp : BooleanFFlag<"ipa-cp">, Group<clang_ignored_gcc_optimization_f_Group>; defm ivopts : BooleanFFlag<"ivopts">, Group<clang_ignored_gcc_optimization_f_Group>; +def : Flag<["-"], "fno-semantic-interposition">, Group<clang_ignored_f_Group>; defm non_call_exceptions : BooleanFFlag<"non-call-exceptions">, Group<clang_ignored_f_Group>; defm peel_loops : BooleanFFlag<"peel-loops">, Group<clang_ignored_gcc_optimization_f_Group>; defm permissive : BooleanFFlag<"permissive">, Group<clang_ignored_f_Group>; diff --git a/clang/test/Driver/clang_f_opts.c b/clang/test/Driver/clang_f_opts.c index 970b4e934e7..7038a2b52f6 100644 --- a/clang/test/Driver/clang_f_opts.c +++ b/clang/test/Driver/clang_f_opts.c @@ -251,6 +251,7 @@ // RUN: -fexec-charset=UTF-8 \ // RUN: -fivopts -fno-ivopts \ // RUN: -fnon-call-exceptions -fno-non-call-exceptions \ +// RUN: -fno-semantic-interposition \ // RUN: -fpermissive -fno-permissive \ // RUN: -fdefer-pop -fno-defer-pop \ // RUN: -fprefetch-loop-arrays -fno-prefetch-loop-arrays \ |
