From cfca06d7963fa0909f90483b42a6d7d194d01e08 Mon Sep 17 00:00:00 2001
From: Dimitry Andric <dim@FreeBSD.org>
Date: Sun, 26 Jul 2020 19:36:28 +0000
Subject: Vendor import of llvm-project master 2e10b7a39b9, the last commit
 before the llvmorg-12-init tag, from which release/11.x was branched.

---
 llvm/lib/LTO/LTOCodeGenerator.cpp | 20 +++++++++++++++-----
 1 file changed, 15 insertions(+), 5 deletions(-)

(limited to 'llvm/lib/LTO/LTOCodeGenerator.cpp')

diff --git a/llvm/lib/LTO/LTOCodeGenerator.cpp b/llvm/lib/LTO/LTOCodeGenerator.cpp
index 5fef14230a9b..25ab1404b4e1 100644
--- a/llvm/lib/LTO/LTOCodeGenerator.cpp
+++ b/llvm/lib/LTO/LTOCodeGenerator.cpp
@@ -29,11 +29,11 @@
 #include "llvm/IR/DiagnosticInfo.h"
 #include "llvm/IR/DiagnosticPrinter.h"
 #include "llvm/IR/LLVMContext.h"
+#include "llvm/IR/LLVMRemarkStreamer.h"
 #include "llvm/IR/LegacyPassManager.h"
 #include "llvm/IR/Mangler.h"
 #include "llvm/IR/Module.h"
 #include "llvm/IR/PassTimingInfo.h"
-#include "llvm/IR/RemarkStreamer.h"
 #include "llvm/IR/Verifier.h"
 #include "llvm/InitializePasses.h"
 #include "llvm/LTO/LTO.h"
@@ -57,6 +57,7 @@
 #include "llvm/Transforms/IPO.h"
 #include "llvm/Transforms/IPO/Internalize.h"
 #include "llvm/Transforms/IPO/PassManagerBuilder.h"
+#include "llvm/Transforms/IPO/WholeProgramDevirt.h"
 #include "llvm/Transforms/ObjCARC.h"
 #include "llvm/Transforms/Utils/ModuleUtils.h"
 #include <system_error>
@@ -133,10 +134,12 @@ void LTOCodeGenerator::initializeLTOPasses() {
   initializeSimpleInlinerPass(R);
   initializePruneEHPass(R);
   initializeGlobalDCELegacyPassPass(R);
+  initializeOpenMPOptLegacyPassPass(R);
   initializeArgPromotionPass(R);
   initializeJumpThreadingPass(R);
   initializeSROALegacyPassPass(R);
   initializeAttributorLegacyPassPass(R);
+  initializeAttributorCGSCCLegacyPassPass(R);
   initializePostOrderFunctionAttrsLegacyPassPass(R);
   initializeReversePostOrderFunctionAttrsLegacyPassPass(R);
   initializeGlobalsAAWrapperPassPass(R);
@@ -526,8 +529,8 @@ bool LTOCodeGenerator::optimize(bool DisableVerify, bool DisableInline,
     return false;
 
   auto DiagFileOrErr =
-      lto::setupOptimizationRemarks(Context, RemarksFilename, RemarksPasses,
-                                    RemarksFormat, RemarksWithHotness);
+      lto::setupLLVMOptimizationRemarks(Context, RemarksFilename, RemarksPasses,
+                                        RemarksFormat, RemarksWithHotness);
   if (!DiagFileOrErr) {
     errs() << "Error: " << toString(DiagFileOrErr.takeError()) << "\n";
     report_fatal_error("Can't get an output file for the remarks");
@@ -542,6 +545,13 @@ bool LTOCodeGenerator::optimize(bool DisableVerify, bool DisableInline,
   }
   StatsFile = std::move(StatsFileOrErr.get());
 
+  // Currently there is no support for enabling whole program visibility via a
+  // linker option in the old LTO API, but this call allows it to be specified
+  // via the internal option. Must be done before WPD invoked via the optimizer
+  // pipeline run below.
+  updateVCallVisibilityInModule(*MergedModule,
+                                /* WholeProgramVisibilityEnabledInLTO */ false);
+
   // We always run the verifier once on the merged module, the `DisableVerify`
   // parameter only applies to subsequent verify.
   verifyMergedModuleOnce();
@@ -622,9 +632,9 @@ bool LTOCodeGenerator::compileOptimized(ArrayRef<raw_pwrite_stream *> Out) {
   return true;
 }
 
-void LTOCodeGenerator::setCodeGenDebugOptions(ArrayRef<const char *> Options) {
+void LTOCodeGenerator::setCodeGenDebugOptions(ArrayRef<StringRef> Options) {
   for (StringRef Option : Options)
-    CodegenOptions.push_back(Option);
+    CodegenOptions.push_back(Option.str());
 }
 
 void LTOCodeGenerator::parseCodeGenDebugOptions() {
-- 
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