From e3b557809604d036af6e00c60f012c2025b59a5e Mon Sep 17 00:00:00 2001
From: Dimitry Andric <dim@FreeBSD.org>
Date: Sat, 11 Feb 2023 13:38:04 +0100
Subject: Vendor import of llvm-project main
 llvmorg-16-init-18548-gb0daacf58f41, the last commit before the upstream
 release/17.x branch was created.

---
 llvm/lib/CodeGen/CommandFlags.cpp | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

(limited to 'llvm/lib/CodeGen/CommandFlags.cpp')

diff --git a/llvm/lib/CodeGen/CommandFlags.cpp b/llvm/lib/CodeGen/CommandFlags.cpp
index fd52191882cb..48cd8e998ec9 100644
--- a/llvm/lib/CodeGen/CommandFlags.cpp
+++ b/llvm/lib/CodeGen/CommandFlags.cpp
@@ -23,6 +23,7 @@
 #include "llvm/Support/CommandLine.h"
 #include "llvm/Support/Host.h"
 #include "llvm/Support/MemoryBuffer.h"
+#include <optional>
 
 using namespace llvm;
 
@@ -40,14 +41,15 @@ using namespace llvm;
     return *NAME##View;                                                        \
   }
 
+// Temporary macro for incremental transition to std::optional.
 #define CGOPT_EXP(TY, NAME)                                                    \
   CGOPT(TY, NAME)                                                              \
-  Optional<TY> codegen::getExplicit##NAME() {                                  \
+  std::optional<TY> codegen::getExplicit##NAME() {                             \
     if (NAME##View->getNumOccurrences()) {                                     \
       TY res = *NAME##View;                                                    \
       return res;                                                              \
     }                                                                          \
-    return None;                                                               \
+    return std::nullopt;                                                       \
   }
 
 CGOPT(std::string, MArch)
@@ -357,7 +359,7 @@ codegen::RegisterCodeGenFlags::RegisterCodeGenFlags() {
       "relax-elf-relocations",
       cl::desc(
           "Emit GOTPCRELX/REX_GOTPCRELX instead of GOTPCREL on x86-64 ELF"),
-      cl::init(false));
+      cl::init(true));
   CGBINDOPT(RelaxELFRelocations);
 
   static cl::opt<bool> DataSections(
@@ -590,8 +592,8 @@ std::string codegen::getFeaturesStr() {
   if (getMCPU() == "native") {
     StringMap<bool> HostFeatures;
     if (sys::getHostCPUFeatures(HostFeatures))
-      for (auto &F : HostFeatures)
-        Features.AddFeature(F.first(), F.second);
+      for (const auto &[Feature, IsEnabled] : HostFeatures)
+        Features.AddFeature(Feature, IsEnabled);
   }
 
   for (auto const &MAttr : getMAttrs())
@@ -610,8 +612,8 @@ std::vector<std::string> codegen::getFeatureList() {
   if (getMCPU() == "native") {
     StringMap<bool> HostFeatures;
     if (sys::getHostCPUFeatures(HostFeatures))
-      for (auto &F : HostFeatures)
-        Features.AddFeature(F.first(), F.second);
+      for (const auto &[Feature, IsEnabled] : HostFeatures)
+        Features.AddFeature(Feature, IsEnabled);
   }
 
   for (auto const &MAttr : getMAttrs())
-- 
cgit v1.2.3