Don't rely in llvm::Bitset CTAD. NFC.

This triggers a lot of -Wctad-maybe-unsupported

Author: d0k

clang/lib/Basic/Targets/AArch64.cpp

@@ -979,7 +979,7 @@ bool AArch64TargetInfo::initFeatureMap(
   // Parse the CPU and add any implied features.
   std::optional<llvm::AArch64::CpuInfo> CpuInfo = llvm::AArch64::parseCpu(CPU);
   if (CpuInfo) {
-    llvm::Bitset Exts = CpuInfo->getImpliedExtensions();
+    auto Exts = CpuInfo->getImpliedExtensions();
     std::vector<StringRef> CPUFeats;
     llvm::AArch64::getExtensionFeatures(Exts, CPUFeats);
     for (auto F : CPUFeats) {

clang/lib/Driver/ToolChains/Arch/AArch64.cpp

@@ -158,7 +158,7 @@ static bool DecodeAArch64Mcpu(const Driver &D, StringRef Mcpu, StringRef &CPU,
 
     Features.push_back(ArchInfo->ArchFeature);
 
-    llvm::Bitset Extension = CpuInfo->getImpliedExtensions();
+    auto Extension = CpuInfo->getImpliedExtensions();
     if (!llvm::AArch64::getExtensionFeatures(Extension, Features))
       return false;
   }

llvm/include/llvm/TargetParser/AArch64TargetParser.h

@@ -347,7 +347,7 @@ inline constexpr ArchInfo ARMV9_3A  = { VersionTuple{9, 3}, AProfile, "armv9.3-a
 inline constexpr ArchInfo ARMV9_4A  = { VersionTuple{9, 4}, AProfile, "armv9.4-a", "+v9.4a", (ARMV9_3A.DefaultExts |
                                         AArch64::ExtensionBitset({AArch64::AEK_SPECRES2, AArch64::AEK_CSSC, AArch64::AEK_RASv2}))};
 // For v8-R, we do not enable crypto and align with GCC that enables a more minimal set of optional architecture extensions.
-inline constexpr ArchInfo ARMV8R    = { VersionTuple{8, 0}, RProfile, "armv8-r", "+v8r", (Bitset(ARMV8_5A.DefaultExts) |
+inline constexpr ArchInfo ARMV8R    = { VersionTuple{8, 0}, RProfile, "armv8-r", "+v8r", (ARMV8_5A.DefaultExts |
                                         AArch64::ExtensionBitset({AArch64::AEK_SSBS,
                                         AArch64::AEK_FP16, AArch64::AEK_FP16FML, AArch64::AEK_SB}).flip(AArch64::AEK_LSE))};
 // clang-format on

llvm/unittests/TargetParser/TargetParserTest.cpp

@@ -216,7 +216,7 @@ INSTANTIATE_TEST_SUITE_P(
         ARMCPUTestParams<uint64_t>("arm1020t", "armv5t", "none", ARM::AEK_NONE, "5T"),
         ARMCPUTestParams<uint64_t>("arm9e", "armv5te", "none",
                                    ARM::AEK_NONE | ARM::AEK_DSP, "5TE"),
-        ARMCPUTestParams("arm946e-s", "armv5te", "none",
+        ARMCPUTestParams<uint64_t>("arm946e-s", "armv5te", "none",
                                    ARM::AEK_NONE | ARM::AEK_DSP, "5TE"),
         ARMCPUTestParams<uint64_t>("arm966e-s", "armv5te", "none",
                                    ARM::AEK_NONE | ARM::AEK_DSP, "5TE"),
@@ -1015,7 +1015,7 @@ class AArch64CPUTestFixture
           ARMCPUTestParams<AArch64::ExtensionBitset>> {};
 
 TEST_P(AArch64CPUTestFixture, testAArch64CPU) {
-  ARMCPUTestParams params = GetParam();
+  auto params = GetParam();
 
   const std::optional<AArch64::CpuInfo> Cpu = AArch64::parseCpu(params.CPUName);
   EXPECT_TRUE(Cpu);