[Driver] Forward opt-remark hotness threshold to LTO
llvm-svn: 326108
diff --git a/clang/lib/Driver/ToolChains/Darwin.cpp b/clang/lib/Driver/ToolChains/Darwin.cpp
index 802b89b..b6ee4de 100644
--- a/clang/lib/Driver/ToolChains/Darwin.cpp
+++ b/clang/lib/Driver/ToolChains/Darwin.cpp
@@ -452,7 +452,8 @@
// we follow suite for ease of comparison.
AddLinkArgs(C, Args, CmdArgs, Inputs);
- // For LTO, pass the name of the optimization record file.
+ // For LTO, pass the name of the optimization record file and other
+ // opt-remarks flags.
if (Args.hasFlag(options::OPT_fsave_optimization_record,
options::OPT_fno_save_optimization_record, false)) {
CmdArgs.push_back("-mllvm");
@@ -467,6 +468,14 @@
if (getLastProfileUseArg(Args)) {
CmdArgs.push_back("-mllvm");
CmdArgs.push_back("-lto-pass-remarks-with-hotness");
+
+ if (const Arg *A =
+ Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) {
+ CmdArgs.push_back("-mllvm");
+ std::string Opt =
+ std::string("-lto-pass-remarks-hotness-threshold=") + A->getValue();
+ CmdArgs.push_back(Args.MakeArgString(Opt));
+ }
}
}