zig cc: Update driver files to Clang 20.

Author: alexrp

src/zig_clang_cc1_main.cpp

@@ -14,7 +14,7 @@
 
 #include "clang/Basic/Stack.h"
 #include "clang/Basic/TargetOptions.h"
-#include "clang/CodeGen/ObjectFilePCHContainerOperations.h"
+#include "clang/CodeGen/ObjectFilePCHContainerWriter.h"
 #include "clang/Config/config.h"
 #include "clang/Driver/DriverDiagnostic.h"
 #include "clang/Driver/Options.h"
@@ -25,6 +25,7 @@
 #include "clang/Frontend/TextDiagnosticPrinter.h"
 #include "clang/Frontend/Utils.h"
 #include "clang/FrontendTool/Utils.h"
+#include "clang/Serialization/ObjectFilePCHContainerReader.h"
 #include "llvm/ADT/Statistic.h"
 #include "llvm/ADT/StringExtras.h"
 #include "llvm/Config/llvm-config.h"
@@ -44,6 +45,7 @@
 #include "llvm/Support/TargetSelect.h"
 #include "llvm/Support/TimeProfiler.h"
 #include "llvm/Support/Timer.h"
+#include "llvm/Support/VirtualFileSystem.h"
 #include "llvm/Support/raw_ostream.h"
 #include "llvm/Target/TargetMachine.h"
 #include "llvm/TargetParser/AArch64TargetParser.h"
@@ -263,7 +265,7 @@ int cc1_main(ArrayRef<const char *> Argv, const char *Argv0, void *MainAddr) {
       CompilerInvocation::GetResourcesPath(Argv0, MainAddr);
 
   // Create the actual diagnostics engine.
-  Clang->createDiagnostics();
+  Clang->createDiagnostics(*llvm::vfs::getRealFileSystem());
   if (!Clang->hasDiagnostics())
     return 1;
 
@@ -281,6 +283,10 @@ int cc1_main(ArrayRef<const char *> Argv, const char *Argv0, void *MainAddr) {
   // Execute the frontend actions.
   {
     llvm::TimeTraceScope TimeScope("ExecuteCompiler");
+    bool TimePasses = Clang->getCodeGenOpts().TimePasses;
+    if (TimePasses)
+      Clang->createFrontendTimer();
+    llvm::TimeRegion Timer(TimePasses ? &Clang->getFrontendTimer() : nullptr);
     Success = ExecuteCompilerInvocation(Clang.get());
   }
 

src/zig_clang_cc1as_main.cpp

@@ -96,10 +96,6 @@ struct AssemblerInvocation {
   LLVM_PREFERRED_TYPE(bool)
   unsigned GenDwarfForAssembly : 1;
   LLVM_PREFERRED_TYPE(bool)
-  unsigned RelaxELFRelocations : 1;
-  LLVM_PREFERRED_TYPE(bool)
-  unsigned SSE2AVX : 1;
-  LLVM_PREFERRED_TYPE(bool)
   unsigned Dwarf64 : 1;
   unsigned DwarfVersion;
   std::string DwarfDebugFlags;
@@ -168,6 +164,13 @@ struct AssemblerInvocation {
 
   LLVM_PREFERRED_TYPE(bool)
   unsigned Crel : 1;
+  LLVM_PREFERRED_TYPE(bool)
+  unsigned ImplicitMapsyms : 1;
+
+  LLVM_PREFERRED_TYPE(bool)
+  unsigned X86RelaxRelocations : 1;
+  LLVM_PREFERRED_TYPE(bool)
+  unsigned X86Sse2Avx : 1;
 
   /// The name of the relocation model to use.
   std::string RelocationModel;
@@ -199,7 +202,6 @@ struct AssemblerInvocation {
     ShowInst = 0;
     ShowEncoding = 0;
     RelaxAll = 0;
-    SSE2AVX = 0;
     NoExecStack = 0;
     FatalWarnings = 0;
     NoWarn = 0;
@@ -211,6 +213,9 @@ struct AssemblerInvocation {
     EmitDwarfUnwind = EmitDwarfUnwindType::Default;
     EmitCompactUnwindNonCanonical = false;
     Crel = false;
+    ImplicitMapsyms = 0;
+    X86RelaxRelocations = 0;
+    X86Sse2Avx = 0;
   }
 
   static bool CreateFromArgs(AssemblerInvocation &Res,
@@ -290,8 +295,6 @@ bool AssemblerInvocation::CreateFromArgs(AssemblerInvocation &Opts,
             .Default(llvm::DebugCompressionType::None);
   }
 
-  Opts.RelaxELFRelocations = !Args.hasArg(OPT_mrelax_relocations_no);
-  Opts.SSE2AVX = Args.hasArg(OPT_msse2avx);
   if (auto *DwarfFormatArg = Args.getLastArg(OPT_gdwarf64, OPT_gdwarf32))
     Opts.Dwarf64 = DwarfFormatArg->getOption().matches(OPT_gdwarf64);
   Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 2, Diags);
@@ -382,6 +385,9 @@ bool AssemblerInvocation::CreateFromArgs(AssemblerInvocation &Opts,
   Opts.EmitCompactUnwindNonCanonical =
       Args.hasArg(OPT_femit_compact_unwind_non_canonical);
   Opts.Crel = Args.hasArg(OPT_crel);
+  Opts.ImplicitMapsyms = Args.hasArg(OPT_mmapsyms_implicit);
+  Opts.X86RelaxRelocations = !Args.hasArg(OPT_mrelax_relocations_no);
+  Opts.X86Sse2Avx = Args.hasArg(OPT_msse2avx);
 
   Opts.AsSecureLogFile = Args.getLastArgValue(OPT_as_secure_log_file);
 
@@ -440,8 +446,9 @@ static bool ExecuteAssemblerImpl(AssemblerInvocation &Opts,
   MCOptions.EmitCompactUnwindNonCanonical = Opts.EmitCompactUnwindNonCanonical;
   MCOptions.MCSaveTempLabels = Opts.SaveTemporaryLabels;
   MCOptions.Crel = Opts.Crel;
-  MCOptions.X86RelaxRelocations = Opts.RelaxELFRelocations;
-  MCOptions.X86Sse2Avx = Opts.SSE2AVX;
+  MCOptions.ImplicitMapSyms = Opts.ImplicitMapsyms;
+  MCOptions.X86RelaxRelocations = Opts.X86RelaxRelocations;
+  MCOptions.X86Sse2Avx = Opts.X86Sse2Avx;
   MCOptions.CompressDebugSections = Opts.CompressDebugSections;
   MCOptions.AsSecureLogFile = Opts.AsSecureLogFile;
 
@@ -489,10 +496,6 @@ static bool ExecuteAssemblerImpl(AssemblerInvocation &Opts,
   // MCObjectFileInfo needs a MCContext reference in order to initialize itself.
   std::unique_ptr<MCObjectFileInfo> MOFI(
       TheTarget->createMCObjectFileInfo(Ctx, PIC));
-  if (Opts.DarwinTargetVariantTriple)
-    MOFI->setDarwinTargetVariantTriple(*Opts.DarwinTargetVariantTriple);
-  if (!Opts.DarwinTargetVariantSDKVersion.empty())
-    MOFI->setDarwinTargetVariantSDKVersion(Opts.DarwinTargetVariantSDKVersion);
   Ctx.setObjectFileInfo(MOFI.get());
 
   if (Opts.GenDwarfForAssembly)
@@ -574,6 +577,13 @@ static bool ExecuteAssemblerImpl(AssemblerInvocation &Opts,
     Str.reset(TheTarget->createMCObjectStreamer(
         T, Ctx, std::move(MAB), std::move(OW), std::move(CE), *STI));
     Str.get()->initSections(Opts.NoExecStack, *STI);
+    if (T.isOSBinFormatMachO() && T.isOSDarwin()) {
+      Triple *TVT = Opts.DarwinTargetVariantTriple
+                        ? &*Opts.DarwinTargetVariantTriple
+                        : nullptr;
+      Str->emitVersionForTarget(T, VersionTuple(), TVT,
+                                Opts.DarwinTargetVariantSDKVersion);
+    }
   }
 
   // When -fembed-bitcode is passed to clang_as, a 1-byte marker

src/zig_clang_driver.cpp

@@ -29,6 +29,7 @@
 #include "llvm/ADT/SmallString.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/ADT/StringSet.h"
+#include "llvm/Config/llvm-config.h" // for LLVM_ON_UNIX
 #include "llvm/Option/ArgList.h"
 #include "llvm/Option/OptTable.h"
 #include "llvm/Option/Option.h"
@@ -46,12 +47,14 @@
 #include "llvm/Support/StringSaver.h"
 #include "llvm/Support/TargetSelect.h"
 #include "llvm/Support/Timer.h"
+#include "llvm/Support/VirtualFileSystem.h"
 #include "llvm/Support/raw_ostream.h"
 #include "llvm/TargetParser/Host.h"
 #include <memory>
 #include <optional>
 #include <set>
 #include <system_error>
+
 using namespace clang;
 using namespace clang::driver;
 using namespace llvm::opt;
@@ -327,9 +330,11 @@ static int clang_main(int Argc, char **Argv, const llvm::ToolContext &ToolContex
         Diags.takeClient(), std::move(SerializedConsumer)));
   }
 
-  ProcessWarningOptions(Diags, *DiagOpts, /*ReportDiags=*/false);
+  auto VFS = llvm::vfs::getRealFileSystem();
+  ProcessWarningOptions(Diags, *DiagOpts, *VFS, /*ReportDiags=*/false);
 
-  Driver TheDriver(Path, llvm::sys::getDefaultTargetTriple(), Diags);
+  Driver TheDriver(Path, llvm::sys::getDefaultTargetTriple(), Diags,
+                   /*Title=*/"clang LLVM compiler", VFS);
   auto TargetAndMode = ToolChain::getTargetAndModeFromProgramName(ProgName);
   TheDriver.setTargetAndMode(TargetAndMode);
   // If -canonical-prefixes is set, GetExecutablePath will have resolved Path
@@ -345,10 +350,12 @@ static int clang_main(int Argc, char **Argv, const llvm::ToolContext &ToolContex
   if (!SetBackdoorDriverOutputsFromEnvVars(TheDriver))
     return 1;
 
+  auto ExecuteCC1WithContext =
+      [&ToolContext](SmallVectorImpl<const char *> &ArgV) {
+        return ExecuteCC1Tool(ArgV, ToolContext);
+      };
   if (!UseNewCC1Process) {
-    TheDriver.CC1Main = [ToolContext](SmallVectorImpl<const char *> &ArgV) {
-      return ExecuteCC1Tool(ArgV, ToolContext);
-    };
+    TheDriver.CC1Main = ExecuteCC1WithContext;
     // Ensure the CC1Command actually catches cc1 crashes
     llvm::CrashRecoveryContext::Enable();
   }
@@ -427,7 +434,7 @@ static int clang_main(int Argc, char **Argv, const llvm::ToolContext &ToolContex
   if (!UseNewCC1Process && IsCrash) {
     // When crashing in -fintegrated-cc1 mode, bury the timer pointers, because
     // the internal linked list might point to already released stack frames.
-    llvm::BuryPointer(llvm::TimerGroup::aquireDefaultGroup());
+    llvm::BuryPointer(llvm::TimerGroup::acquireTimerGlobals());
   } else {
     // If any timers were active but haven't been destroyed yet, print their
     // results now.  This happens in -disable-free mode.