commit ed22f9b6f10d39643754f037bff1210be0acdee5
author Peter Collingbourne <peter@pcc.me.uk> Thu Mar 31 21:00:27 2016 +0000
committer Peter Collingbourne <peter@pcc.me.uk> Thu Mar 31 21:00:27 2016 +0000
tree 1e6b2bc83f3e36ad56591e77fe67678a8bdc28a7
parent 326014ad99a4bb9b8aa934e27e83c2a3a5eba392

ELF: Add flag for controlling LTO optimization level.

Differential Revision: http://reviews.llvm.org/D18667

llvm-svn: 265053

lld/ELF/Driver.cpp

diff --git a/lld/ELF/Driver.cpp b/lld/ELF/Driver.cpp
index eaa27ee..cfcdc7c 100644
--- a/lld/ELF/Driver.cpp
+++ b/lld/ELF/Driver.cpp
@@ -282,6 +282,12 @@
       error("invalid optimization level");
   }
 
+  if (auto *Arg = Args.getLastArg(OPT_lto_O)) {
+    StringRef Val = Arg->getValue();
+    if (Val.getAsInteger(10, Config->LtoO))
+      error("invalid optimization level");
+  }
+
   if (auto *Arg = Args.getLastArg(OPT_hash_style)) {
     StringRef S = Arg->getValue();
     if (S == "gnu") {