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| author | Mehdi Amini <mehdi.amini@apple.com> | 2017-02-10 07:21:06 +0000 |
|---|---|---|
| committer | Mehdi Amini <mehdi.amini@apple.com> | 2017-02-10 07:21:06 +0000 |
| commit | a826244bb1ec67610a2c071c79e6c9dcf2d6e68e (patch) | |
| tree | fef20dac68c898d51ab3b83643016182cddb6e27 /llvm/docs/OptBisect.rst | |
| parent | b4442f34cdf0fb74d44cecfadc20c21cc1647042 (diff) | |
| download | bcm5719-llvm-a826244bb1ec67610a2c071c79e6c9dcf2d6e68e.tar.gz bcm5719-llvm-a826244bb1ec67610a2c071c79e6c9dcf2d6e68e.zip | |
Fix doc for `-opt-bisect-limit`: the LTO option is linker specific
llvm-svn: 294725
Diffstat (limited to 'llvm/docs/OptBisect.rst')
| -rw-r--r-- | llvm/docs/OptBisect.rst | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/llvm/docs/OptBisect.rst b/llvm/docs/OptBisect.rst index e9f1c2541c9..a9ac227a2af 100644 --- a/llvm/docs/OptBisect.rst +++ b/llvm/docs/OptBisect.rst @@ -60,12 +60,15 @@ like this: clang -O2 -mllvm -opt-bisect-limit=256 my_file.c The -opt-bisect-limit option may also be applied to link-time optimizations by -using a prefix to indicate that this is a plug-in option for the linker. The +using a prefix to indicate that this is a plug-in option for the linker. The following syntax will set a bisect limit for LTO transformations: :: + # When using Gold or lld clang -flto -Wl,-plugin-opt,-opt-bisect-limit=256 my_file.o my_other_file.o + # When using ld64 (macOS) + clang -flto -Wl,-mllvm,-opt-bisect-limit=256 my_file.o my_other_file.o LTO passes are run by a library instance invoked by the linker. Therefore any passes run in the primary driver compilation phase are not affected by options |
