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Optimize linkonce_odr unnamed_addr functions during LTO.

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Generalize the API so we can distinguish symbols that are needed just for a DSO
symbol table from those that are used from some native .o.

The symbols that are only wanted for the dso symbol table can be dropped if
llvm can prove every other dso has a copy (linkonce_odr) and the address is not
important (unnamed_addr).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191922 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola
2013-10-03 18:29:09 +00:00
parent 1df59ef1aa
commit 438900938c
12 changed files with 124 additions and 23 deletions
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lib/Transforms/IPO/IPO.cpp
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@@ -98,7 +98,7 @@ void LLVMAddInternalizePass(LLVMPassManagerRef PM, unsigned AllButMain) {
std::vector<const char *> Export;
if (AllButMain)
Export.push_back("main");
unwrap(PM)->add(createInternalizePass(Export));
unwrap(PM)->add(createInternalizePass(Export, None));
}
void LLVMAddStripDeadPrototypesPass(LLVMPassManagerRef PM) {