Reduce global namespace pollution. NFC.

llvm-svn: 284521

lib/LTO/LTOBackend.cpp

@@ -41,7 +41,7 @@
 using namespace llvm;
 using namespace lto;
 
-LLVM_ATTRIBUTE_NORETURN void reportOpenError(StringRef Path, Twine Msg) {
+LLVM_ATTRIBUTE_NORETURN static void reportOpenError(StringRef Path, Twine Msg) {
   errs() << "failed to open " << Path << ": " << Msg << '\n';
   errs().flush();
   exit(1);

lib/Support/Host.cpp

@@ -1194,7 +1194,7 @@ StringRef sys::getHostCPUName() { return "generic"; }
 // On Linux, the number of physical cores can be computed from /proc/cpuinfo,
 // using the number of unique physical/core id pairs. The following
 // implementation reads the /proc/cpuinfo format on an x86_64 system.
-int computeHostNumPhysicalCores() {
+static int computeHostNumPhysicalCores() {
   // Read /proc/cpuinfo as a stream (until EOF reached). It cannot be
   // mmapped because it appears to have 0 size.
   llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Text =
@@ -1236,7 +1236,7 @@ int computeHostNumPhysicalCores() {
 }
 #else
 // On other systems, return -1 to indicate unknown.
-int computeHostNumPhysicalCores() { return -1; }
+static int computeHostNumPhysicalCores() { return -1; }
 #endif
 
 int sys::getHostNumPhysicalCores() {

lib/Target/Lanai/Disassembler/LanaiDisassembler.cpp

@@ -47,8 +47,9 @@ LanaiDisassembler::LanaiDisassembler(const MCSubtargetInfo &STI, MCContext &Ctx)
 
 // Forward declare because the autogenerated code will reference this.
 // Definition is further down.
-DecodeStatus DecodeGPRRegisterClass(MCInst &Inst, unsigned RegNo,
-                                    uint64_t Address, const void *Decoder);
+static DecodeStatus DecodeGPRRegisterClass(MCInst &Inst, unsigned RegNo,
+                                           uint64_t Address,
+                                           const void *Decoder);
 
 static DecodeStatus decodeRiMemoryValue(MCInst &Inst, unsigned Insn,
                                         uint64_t Address, const void *Decoder);

lib/Target/Lanai/MCTargetDesc/LanaiMCTargetDesc.cpp

@@ -73,11 +73,12 @@ static MCInstPrinter *createLanaiMCInstPrinter(const Triple & /*T*/,
   return 0;
 }
 
-MCRelocationInfo *createLanaiElfRelocation(const Triple &TheTriple,
-                                           MCContext &Ctx) {
+static MCRelocationInfo *createLanaiElfRelocation(const Triple &TheTriple,
+                                                  MCContext &Ctx) {
   return createMCRelocationInfo(TheTriple, Ctx);
 }
 
+namespace {
 class LanaiMCInstrAnalysis : public MCInstrAnalysis {
 public:
   explicit LanaiMCInstrAnalysis(const MCInstrInfo *Info)
@@ -106,6 +107,7 @@ public:
     }
   }
 };
+} // end anonymous namespace
 
 static MCInstrAnalysis *createLanaiInstrAnalysis(const MCInstrInfo *Info) {
   return new LanaiMCInstrAnalysis(Info);

lib/Target/X86/X86ISelLowering.cpp

@@ -29151,7 +29151,8 @@ static SDValue combineLogicBlendIntoPBLENDV(SDNode *N, SelectionDAG &DAG,
 //   into:
 //   srl(ctlz x), log2(bitsize(x))
 // Input pattern is checked by caller.
-SDValue lowerX86CmpEqZeroToCtlzSrl(SDValue Op, EVT ExtTy, SelectionDAG &DAG) {
+static SDValue lowerX86CmpEqZeroToCtlzSrl(SDValue Op, EVT ExtTy,
+                                          SelectionDAG &DAG) {
   SDValue Cmp = Op.getOperand(1);
   EVT VT = Cmp.getOperand(0).getValueType();
   unsigned Log2b = Log2_32(VT.getSizeInBits());

lib/Target/X86/X86InstrFMA3Info.cpp

@@ -16,6 +16,7 @@
 #include "X86InstrInfo.h"
 #include "llvm/Support/ManagedStatic.h"
 #include "llvm/Support/Threading.h"
+using namespace llvm;
 
 /// This flag is used in the method llvm::call_once() used below to make the
 /// initialization of the map 'OpcodeToGroup' thread safe.

lib/Target/X86/X86InstrFMA3Info.h

@@ -20,8 +20,7 @@
 #include <cassert>
 #include <set>
 
-using namespace llvm;
-
+namespace llvm {
 /// This class is used to group {132, 213, 231} forms of FMA opcodes together.
 /// Each of the groups has either 3 register opcodes, 3 memory opcodes,
 /// or 6 register and memory opcodes. Also, each group has an attrubutes field
@@ -311,5 +310,6 @@ public:
     return rm_iterator(getX86InstrFMA3Info()->OpcodeToGroup.end());
   }
 };
+} // namespace llvm
 
 #endif