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[Docs] Document cache pruning support for gold 

Differential Revision: https://reviews.llvm.org/D37995

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@313591 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Yi Kong 2017-09-18 23:24:01 +00:00
parent fd4ce662bc
commit cc6a5a338f
1 changed files with 4 additions and 2 deletions
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6
docs/ThinLTO.rst
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@ -141,10 +141,12 @@ Cache Pruning
-------------
To help keep the size of the cache under control, ThinLTO supports cache
pruning. Cache pruning is supported with ld64 and ELF and COFF lld, but
currently only ELF and COFF lld allow you to control the policy with a
pruning. Cache pruning is supported with gold, ld64 and ELF and COFF lld, but
currently only gold, ELF and COFF lld allow you to control the policy with a
policy string. The cache policy must be specified with a linker option.
- gold (as of LLVM 6.0):
``-Wl,-plugin-opt,cache-policy=POLICY``
- ELF lld (as of LLVM 5.0):
``-Wl,--thinlto-cache-policy,POLICY``
- COFF lld-link (as of LLVM 6.0):