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| author | Evgeniy Stepanov <eugeni.stepanov@gmail.com> | 2017-03-17 22:17:24 +0000 |
|---|---|---|
| committer | Evgeniy Stepanov <eugeni.stepanov@gmail.com> | 2017-03-17 22:17:24 +0000 |
| commit | 51c962f72e9569d54dc9c853abf99e2c34fc41cf (patch) | |
| tree | d0dd2501c4b1c20925959248743eb309e431d5ae /clang/lib/Serialization/ModuleManager.cpp | |
| parent | 46ddab38102b79a8e477a29e68e9441313bc1f86 (diff) | |
| download | llvm-51c962f72e9569d54dc9c853abf99e2c34fc41cf.zip llvm-51c962f72e9569d54dc9c853abf99e2c34fc41cf.tar.gz llvm-51c962f72e9569d54dc9c853abf99e2c34fc41cf.tar.bz2 | |
Add !associated metadata.
This is an ELF-specific thing that adds SHF_LINK_ORDER to the global's section
pointing to the metadata argument's section. The effect of that is a reverse dependency
between sections for the linker GC.
!associated does not change the behavior of global-dce. The global
may also need to be added to llvm.compiler.used.
Since SHF_LINK_ORDER is per-section, !associated effectively enables
fdata-sections for the affected globals, the same as comdats do.
Differential Revision: https://reviews.llvm.org/D29104
llvm-svn: 298157
Diffstat (limited to 'clang/lib/Serialization/ModuleManager.cpp')
0 files changed, 0 insertions, 0 deletions