From 438900938c3ac9d7fac2dd5d2c85ca4b9b2e35f7 Mon Sep 17 00:00:00 2001
From: Rafael Espindola <rafael.espindola@gmail.com>
Date: Thu, 3 Oct 2013 18:29:09 +0000
Subject: Optimize linkonce_odr unnamed_addr functions during LTO.

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
---
 tools/lto/lto.cpp | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'tools/lto/lto.cpp')

diff --git a/tools/lto/lto.cpp b/tools/lto/lto.cpp
index 7bfddcd9ec..a3acd4c950 100644
--- a/tools/lto/lto.cpp
+++ b/tools/lto/lto.cpp
@@ -260,6 +260,10 @@ void lto_codegen_add_must_preserve_symbol(lto_code_gen_t cg,
   cg->addMustPreserveSymbol(symbol);
 }
 
+void lto_codegen_add_dso_symbol(lto_code_gen_t cg, const char *symbol) {
+  cg->addDSOSymbol(symbol);
+}
+
 /// lto_codegen_write_merged_modules - Writes a new file at the specified path
 /// that contains the merged contents of all modules added so far. Returns true
 /// on error (check lto_get_error_message() for details).
-- 
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