[NVPTX] Support inline asm with 128-bit operand in NVPTX backend

clang-tools-extra/clang-tidy/tool/ClangTidyMain.cpp

@@ -325,6 +325,14 @@ option is recognized.
 )"),
                                   cl::init(false), cl::cat(ClangTidyCategory));
 
+static cl::opt<bool> AllowNoChecks("allow-no-checks", desc(R"(
+Allow empty enabled checks. This suppresses
+the "no checks enabled" error when disabling
+all of the checks.
+)"),
+                                         cl::init(false),
+                                         cl::cat(ClangTidyCategory));
+
 namespace clang::tidy {
 
 static void printStats(const ClangTidyStats &Stats) {
@@ -598,7 +606,7 @@ int clangTidyMain(int argc, const char **argv) {
   }
 
   if (ListChecks) {
-    if (EnabledChecks.empty()) {
+    if (EnabledChecks.empty() && !AllowNoChecks) {
       llvm::errs() << "No checks enabled.\n";
       return 1;
     }
@@ -652,6 +660,10 @@ int clangTidyMain(int argc, const char **argv) {
   }
 
   if (EnabledChecks.empty()) {
+    if (AllowNoChecks) {
+      llvm::outs() << "No checks enabled.\n";
+      return 0;
+    }
     llvm::errs() << "Error: no checks enabled.\n";
     llvm::cl::PrintHelpMessage(/*Hidden=*/false, /*Categorized=*/true);
     return 1;

clang-tools-extra/clang-tidy/tool/clang-tidy-diff.py

@@ -229,6 +229,11 @@ def main():
         default=[],
         help="Load the specified plugin in clang-tidy.",
     )
+    parser.add_argument(
+        "-allow-no-checks",
+        action="store_true",
+        help="Allow empty enabled checks.",
+    )
 
     clang_tidy_args = []
     argv = sys.argv[1:]
@@ -327,6 +332,8 @@ def main():
         common_clang_tidy_args.append("-p=%s" % args.build_path)
     if args.use_color:
         common_clang_tidy_args.append("--use-color")
+    if args.allow_no_checks:
+        common_clang_tidy_args.append("--allow-no-checks")
     for arg in args.extra_arg:
         common_clang_tidy_args.append("-extra-arg=%s" % arg)
     for arg in args.extra_arg_before:

clang-tools-extra/clang-tidy/tool/run-clang-tidy.py

@@ -107,6 +107,7 @@ def get_tidy_invocation(
     plugins,
     warnings_as_errors,
     exclude_header_filter,
+    allow_no_checks,
 ):
     """Gets a command line for clang-tidy."""
     start = [clang_tidy_binary]
@@ -147,6 +148,8 @@ def get_tidy_invocation(
         start.append("-load=" + plugin)
     if warnings_as_errors:
         start.append("--warnings-as-errors=" + warnings_as_errors)
+    if allow_no_checks:
+        start.append("--allow-no-checks")
     start.append(f)
     return start
 
@@ -232,6 +235,7 @@ def run_tidy(args, clang_tidy_binary, tmpdir, build_path, queue, lock, failed_fi
             args.plugins,
             args.warnings_as_errors,
             args.exclude_header_filter,
+            args.allow_no_checks,
         )
 
         proc = subprocess.Popen(
@@ -405,6 +409,11 @@ def main():
         default=None,
         help="Upgrades warnings to errors. Same format as '-checks'.",
     )
+    parser.add_argument(
+        "-allow-no-checks",
+        action="store_true",
+        help="Allow empty enabled checks.",
+    )
     args = parser.parse_args()
 
     db_path = "compile_commands.json"
@@ -466,6 +475,7 @@ def main():
             args.plugins,
             args.warnings_as_errors,
             args.exclude_header_filter,
+            args.allow_no_checks,
         )
         invocation.append("-list-checks")
         invocation.append("-")

clang-tools-extra/docs/ReleaseNotes.rst

@@ -125,6 +125,9 @@ Improvements to clang-tidy
 - Added argument `--exclude-header-filter` and config option `ExcludeHeaderFilterRegex`
   to exclude headers from analysis via a RegEx.
 
+- Added argument `--allow-no-checks` to suppress "no checks enabled" error
+  when disabling all of the checks by `--checks='-*'`.
+
 New checks
 ^^^^^^^^^^
 

clang-tools-extra/docs/clang-tidy/checks/misc/use-internal-linkage.rst

@@ -31,7 +31,7 @@ Options
 
 .. option:: FixMode
 
-  Selects what kind of a fix the check should provide.
+  Selects what kind of a fix the check should provide. The default is `UseStatic`.
 
   ``None``
     Don't fix automatically.

clang-tools-extra/docs/clang-tidy/index.rst

@@ -240,6 +240,9 @@ An overview of all the command-line options:
                                        This option's value is appended to the value of
                                        the 'WarningsAsErrors' option in .clang-tidy
                                        file, if any.
+    --allow-no-checks                - Allow empty enabled checks. This suppresses
+                                       the "no checks enabled" error when disabling
+                                       all of the checks.
 
   -p <build-path> is used to read a compile command database.
 

clang-tools-extra/test/clang-tidy/infrastructure/allow-no-checks.cpp

@@ -0,0 +1,4 @@
+// RUN: not clang-tidy %s -checks='-*'
+// RUN: clang-tidy %s -checks='-*' --allow-no-checks | FileCheck --match-full-lines %s
+
+// CHECK: No checks enabled.

clang/cmake/caches/Fuchsia-stage2.cmake

@@ -321,7 +321,7 @@ foreach(target armv6m-unknown-eabi;armv7m-unknown-eabi;armv8m-unknown-eabi)
   set(RUNTIMES_${target}_CMAKE_BUILD_TYPE RelWithDebInfo CACHE STRING "")
   set(RUNTIMES_${target}_CMAKE_TRY_COMPILE_TARGET_TYPE STATIC_LIBRARY CACHE STRING "")
   foreach(lang C;CXX;ASM)
-    set(RUNTIMES_${target}_CMAKE_${lang}_FLAGS "--target=${target} -mthumb" CACHE STRING "")
+    set(RUNTIMES_${target}_CMAKE_${lang}_FLAGS "--target=${target} -mthumb -Wno-atomic-alignment" CACHE STRING "")
   endforeach()
   foreach(type SHARED;MODULE;EXE)
     set(RUNTIMES_${target}_CMAKE_${type}_LINKER_FLAGS "-fuse-ld=lld" CACHE STRING "")

clang/lib/AST/MicrosoftMangle.cpp

@@ -447,8 +447,8 @@ class MicrosoftCXXNameMangler {
   void mangleDecayedArrayType(const ArrayType *T);
   void mangleArrayType(const ArrayType *T);
   void mangleFunctionClass(const FunctionDecl *FD);
-  void mangleCallingConvention(CallingConv CC);
-  void mangleCallingConvention(const FunctionType *T);
+  void mangleCallingConvention(CallingConv CC, SourceRange Range);
+  void mangleCallingConvention(const FunctionType *T, SourceRange Range);
   void mangleIntegerLiteral(const llvm::APSInt &Number,
                             const NonTypeTemplateParmDecl *PD = nullptr,
                             QualType TemplateArgType = QualType());
@@ -888,7 +888,8 @@ void MicrosoftCXXNameMangler::mangleVirtualMemPtrThunk(
   Out << "$B";
   mangleNumber(OffsetInVFTable);
   Out << 'A';
-  mangleCallingConvention(MD->getType()->castAs<FunctionProtoType>());
+  mangleCallingConvention(MD->getType()->castAs<FunctionProtoType>(),
+                          MD->getSourceRange());
 }
 
 void MicrosoftCXXNameMangler::mangleName(GlobalDecl GD) {
@@ -2768,7 +2769,7 @@ void MicrosoftCXXNameMangler::mangleFunctionType(const FunctionType *T,
     mangleQualifiers(Quals, /*IsMember=*/false);
   }
 
-  mangleCallingConvention(CC);
+  mangleCallingConvention(CC, Range);
 
   // <return-type> ::= <type>
   //               ::= @ # structors (they have no declared return type)
@@ -2949,7 +2950,8 @@ void MicrosoftCXXNameMangler::mangleFunctionClass(const FunctionDecl *FD) {
     Out << 'Y';
   }
 }
-void MicrosoftCXXNameMangler::mangleCallingConvention(CallingConv CC) {
+void MicrosoftCXXNameMangler::mangleCallingConvention(CallingConv CC,
+                                                      SourceRange Range) {
   // <calling-convention> ::= A # __cdecl
   //                      ::= B # __export __cdecl
   //                      ::= C # __pascal
@@ -2962,7 +2964,10 @@ void MicrosoftCXXNameMangler::mangleCallingConvention(CallingConv CC) {
   //                      ::= J # __export __fastcall
   //                      ::= Q # __vectorcall
   //                      ::= S # __attribute__((__swiftcall__)) // Clang-only
-  //                      ::= T # __attribute__((__swiftasynccall__))
+  //                      ::= W # __attribute__((__swiftasynccall__))
+  //                      ::= U # __attribute__((__preserve_most__))
+  //                      ::= V # __attribute__((__preserve_none__)) //
+  //                      Clang-only
   //                            // Clang-only
   //                      ::= w # __regcall
   //                      ::= x # __regcall4
@@ -2974,28 +2979,55 @@ void MicrosoftCXXNameMangler::mangleCallingConvention(CallingConv CC) {
 
   switch (CC) {
     default:
-      llvm_unreachable("Unsupported CC for mangling");
+      break;
     case CC_Win64:
     case CC_X86_64SysV:
-    case CC_C: Out << 'A'; break;
-    case CC_X86Pascal: Out << 'C'; break;
-    case CC_X86ThisCall: Out << 'E'; break;
-    case CC_X86StdCall: Out << 'G'; break;
-    case CC_X86FastCall: Out << 'I'; break;
-    case CC_X86VectorCall: Out << 'Q'; break;
-    case CC_Swift: Out << 'S'; break;
-    case CC_SwiftAsync: Out << 'W'; break;
-    case CC_PreserveMost: Out << 'U'; break;
+    case CC_C:
+      Out << 'A';
+      return;
+    case CC_X86Pascal:
+      Out << 'C';
+      return;
+    case CC_X86ThisCall:
+      Out << 'E';
+      return;
+    case CC_X86StdCall:
+      Out << 'G';
+      return;
+    case CC_X86FastCall:
+      Out << 'I';
+      return;
+    case CC_X86VectorCall:
+      Out << 'Q';
+      return;
+    case CC_Swift:
+      Out << 'S';
+      return;
+    case CC_SwiftAsync:
+      Out << 'W';
+      return;
+    case CC_PreserveMost:
+      Out << 'U';
+      return;
+    case CC_PreserveNone:
+      Out << 'V';
+      return;
     case CC_X86RegCall:
       if (getASTContext().getLangOpts().RegCall4)
         Out << "x";
       else
         Out << "w";
-      break;
+      return;
   }
+
+  DiagnosticsEngine &Diags = Context.getDiags();
+  unsigned DiagID = Diags.getCustomDiagID(
+      DiagnosticsEngine::Error, "cannot mangle this calling convention yet");
+  Diags.Report(Range.getBegin(), DiagID) << Range;
 }
-void MicrosoftCXXNameMangler::mangleCallingConvention(const FunctionType *T) {
-  mangleCallingConvention(T->getCallConv());
+void MicrosoftCXXNameMangler::mangleCallingConvention(const FunctionType *T,
+                                                      SourceRange Range) {
+  mangleCallingConvention(T->getCallConv(), Range);
 }
 
 void MicrosoftCXXNameMangler::mangleThrowSpecification(

clang/lib/Basic/Targets/AArch64.cpp

@@ -1536,6 +1536,7 @@ WindowsARM64TargetInfo::checkCallingConvention(CallingConv CC) const {
   case CC_OpenCLKernel:
   case CC_PreserveMost:
   case CC_PreserveAll:
+  case CC_PreserveNone:
   case CC_Swift:
   case CC_SwiftAsync:
   case CC_Win64: