Add gold plugin support to the FreeBSD link driver.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@194350 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp
index 7c98719..c69ad53 100644
--- a/lib/Driver/Tools.cpp
+++ b/lib/Driver/Tools.cpp
@@ -5770,6 +5770,26 @@
Args.AddAllArgs(CmdArgs, options::OPT_Z_Flag);
Args.AddAllArgs(CmdArgs, options::OPT_r);
+ // Tell the linker to load the plugin. This has to come before AddLinkerInputs
+ // as gold requires -plugin to come before any -plugin-opt that -Wl might
+ // forward.
+ if (D.IsUsingLTO(Args)) {
+ CmdArgs.push_back("-plugin");
+ std::string Plugin = ToolChain.getDriver().Dir + "/../lib/LLVMgold.so";
+ CmdArgs.push_back(Args.MakeArgString(Plugin));
+
+ // Try to pass driver level flags relevant to LTO code generation down to
+ // the plugin.
+
+ // Handle flags for selecting CPU variants.
+ std::string CPU = getCPUName(Args, ToolChain.getTriple());
+ if (!CPU.empty()) {
+ CmdArgs.push_back(
+ Args.MakeArgString(Twine("-plugin-opt=mcpu=") +
+ CPU));
+ }
+ }
+
AddLinkerInputs(ToolChain, Inputs, Args, CmdArgs);
if (!Args.hasArg(options::OPT_nostdlib) &&