[ThinLTO] Support opt remarks options with distributed ThinLTO backends

Summary:
Passes down the necessary code ge options to the LTO Config to enable
-fdiagnostics-show-hotness and -fsave-optimization-record in the ThinLTO
backend for a distributed build.

Also, remove warning about not having PGO when the input is IR.

Reviewers: pcc

Subscribers: mehdi_amini, inglorion, eraman, cfe-commits

Differential Revision: https://reviews.llvm.org/D46464

llvm-svn: 331592

1 files changed, 3 insertions, 1 deletions

diff --git a/clang/lib/CodeGen/BackendUtil.cpp b/clang/lib/CodeGen/BackendUtil.cpp
index 3d575c57357..019010925b1 100644
--- a/clang/lib/CodeGen/BackendUtil.cpp
+++ b/clang/lib/CodeGen/BackendUtil.cpp
@@ -1136,6 +1136,8 @@ static void runThinLTOBackend(ModuleSummaryIndex *CombinedIndex, Module *M,
   Conf.SampleProfile = std::move(SampleProfile);
   Conf.UseNewPM = CGOpts.ExperimentalNewPassManager;
   Conf.DebugPassManager = CGOpts.DebugPassManager;
+  Conf.RemarksWithHotness = CGOpts.DiagnosticsWithHotness;
+  Conf.RemarksFilename = CGOpts.OptRecordFile;
   switch (Action) {
   case Backend_EmitNothing:
     Conf.PreCodeGenModuleHook = [](size_t Task, const Module &Mod) {
@@ -1159,7 +1161,7 @@ static void runThinLTOBackend(ModuleSummaryIndex *CombinedIndex, Module *M,
     break;
   }
   if (Error E = thinBackend(
-          Conf, 0, AddStream, *M, *CombinedIndex, ImportList,
+          Conf, -1, AddStream, *M, *CombinedIndex, ImportList,
           ModuleToDefinedGVSummaries[M->getModuleIdentifier()], ModuleMap)) {
     handleAllErrors(std::move(E), [&](ErrorInfoBase &EIB) {
       errs() << "Error running ThinLTO backend: " << EIB.message() << '\n';