Revert "[libc] Migrate to using LIBC_NAMESPACE_DECL for namespace declaration" (#98593)

Reverts #98075

bots are broken

Author: joker-eph

libc/benchmarks/LibcDefaultImplementations.cpp

@@ -1,9 +1,8 @@
 #include "LibcFunctionPrototypes.h"
-#include "src/__support/macros/config.h"
 #include "llvm/ADT/ArrayRef.h"
 #include <cstddef>
 
-namespace LIBC_NAMESPACE_DECL {
+namespace LIBC_NAMESPACE {
 
 extern void *memcpy(void *__restrict, const void *__restrict, size_t);
 extern void *memmove(void *, const void *, size_t);
@@ -12,7 +11,7 @@ extern void bzero(void *, size_t);
 extern int memcmp(const void *, const void *, size_t);
 extern int bcmp(const void *, const void *, size_t);
 
-} // namespace LIBC_NAMESPACE_DECL
+} // namespace LIBC_NAMESPACE
 
 // List of implementations to test.
 

libc/benchmarks/LibcMemoryBenchmarkMain.cpp

@@ -10,7 +10,6 @@
 #include "LibcBenchmark.h"
 #include "LibcMemoryBenchmark.h"
 #include "MemorySizeDistributions.h"
-#include "src/__support/macros/config.h"
 #include "llvm/Support/CommandLine.h"
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/FileSystem.h"
@@ -22,7 +21,7 @@
 #include <cstring>
 #include <unistd.h>
 
-namespace LIBC_NAMESPACE_DECL {
+namespace LIBC_NAMESPACE {
 
 extern void *memcpy(void *__restrict, const void *__restrict, size_t);
 extern void *memmove(void *, const void *, size_t);
@@ -31,7 +30,7 @@ extern void bzero(void *, size_t);
 extern int memcmp(const void *, const void *, size_t);
 extern int bcmp(const void *, const void *, size_t);
 
-} // namespace LIBC_NAMESPACE_DECL
+} // namespace LIBC_NAMESPACE
 
 namespace llvm {
 namespace libc_benchmarks {

libc/benchmarks/automemcpy/lib/CodeGen.cpp

@@ -36,7 +36,6 @@
 // function at the end of the file.
 
 #include "automemcpy/CodeGen.h"
-#include "src/__support/macros/config.h"
 #include <cassert>
 #include <llvm/ADT/STLExtras.h>
 #include <llvm/ADT/StringSet.h>
@@ -543,11 +542,11 @@ static void Serialize(raw_ostream &Stream,
   Stream << "using llvm::libc_benchmarks::MemmoveConfiguration;\n";
   Stream << "using llvm::libc_benchmarks::MemsetConfiguration;\n";
   Stream << "\n";
-  Stream << "namespace LIBC_NAMESPACE_DECL {\n";
+  Stream << "namespace LIBC_NAMESPACE {\n";
   Stream << "\n";
   codegen::functions::Serialize(Stream, Descriptors);
   Stream << "\n";
-  Stream << "} // namespace LIBC_NAMESPACE_DECL\n";
+  Stream << "} // namespace LIBC_NAMESPACE\n";
   Stream << "\n";
   Stream << "namespace llvm {\n";
   Stream << "namespace automemcpy {\n";

libc/benchmarks/automemcpy/unittests/CodeGenTest.cpp

@@ -8,7 +8,6 @@
 
 #include "automemcpy/CodeGen.h"
 #include "automemcpy/RandomFunctionGenerator.h"
-#include "src/__support/macros/config.h"
 #include "gmock/gmock.h"
 #include "gtest/gtest.h"
 #include <optional>
@@ -64,7 +63,7 @@ using llvm::libc_benchmarks::MemcpyConfiguration;
 using llvm::libc_benchmarks::MemmoveConfiguration;
 using llvm::libc_benchmarks::MemsetConfiguration;
 
-namespace LIBC_NAMESPACE_DECL {
+namespace LIBC_NAMESPACE {
 
 static void memcpy_0xE00E29EE73994E2B(char *__restrict dst, const char *__restrict src, size_t size) {
   using namespace LIBC_NAMESPACE::x86;
@@ -135,7 +134,7 @@ static void bzero_0x475977492C218AD4(char * dst, size_t size) {
   return splat_set<Align<_32,Arg::Dst>::Then<Loop<_32>>>(dst, 0, size);
 }
 
-} // namespace LIBC_NAMESPACE_DECL
+} // namespace LIBC_NAMESPACE
 
 namespace llvm {
 namespace automemcpy {

libc/benchmarks/gpu/BenchmarkLogger.cpp

@@ -3,13 +3,12 @@
 #include "src/__support/CPP/string_view.h"
 #include "src/__support/OSUtil/io.h"               // write_to_stderr
 #include "src/__support/big_int.h"                 // is_big_int
-#include "src/__support/macros/config.h"
 #include "src/__support/macros/properties/types.h" // LIBC_TYPES_HAS_INT128
 #include "src/__support/uint128.h"
 
 #include <stdint.h>
 
-namespace LIBC_NAMESPACE_DECL {
+namespace LIBC_NAMESPACE {
 namespace benchmarks {
 
 // cpp::string_view specialization
@@ -95,4 +94,4 @@ template BenchmarkLogger &BenchmarkLogger::operator<< <UInt<320>>(UInt<320>);
 BenchmarkLogger log;
 
 } // namespace benchmarks
-} // namespace LIBC_NAMESPACE_DECL
+} // namespace LIBC_NAMESPACE

libc/benchmarks/gpu/BenchmarkLogger.h

@@ -9,9 +9,7 @@
 #ifndef LLVM_LIBC_BENCHMARKS_GPU_BENCHMARKLOGGER_H
 #define LLVM_LIBC_BENCHMARKS_GPU_BENCHMARKLOGGER_H
 
-#include "src/__support/macros/config.h"
-
-namespace LIBC_NAMESPACE_DECL {
+namespace LIBC_NAMESPACE {
 namespace benchmarks {
 
 // A class to log to standard output in the context of hermetic tests.
@@ -24,6 +22,6 @@ struct BenchmarkLogger {
 extern BenchmarkLogger log;
 
 } // namespace benchmarks
-} // namespace LIBC_NAMESPACE_DECL
+} // namespace LIBC_NAMESPACE
 
 #endif /* LLVM_LIBC_BENCHMARKS_GPU_BENCHMARKLOGGER_H */

libc/benchmarks/gpu/LibcGpuBenchmark.cpp

@@ -5,10 +5,9 @@
 #include "src/__support/FPUtil/sqrt.h"
 #include "src/__support/GPU/utils.h"
 #include "src/__support/fixedvector.h"
-#include "src/__support/macros/config.h"
 #include "src/time/gpu/time_utils.h"
 
-namespace LIBC_NAMESPACE_DECL {
+namespace LIBC_NAMESPACE {
 namespace benchmarks {
 
 FixedVector<Benchmark *, 64> benchmarks;
@@ -136,4 +135,4 @@ BenchmarkResult benchmark(const BenchmarkOptions &options,
 };
 
 } // namespace benchmarks
-} // namespace LIBC_NAMESPACE_DECL
+} // namespace LIBC_NAMESPACE

libc/benchmarks/gpu/LibcGpuBenchmark.h

@@ -6,12 +6,11 @@
 #include "src/__support/CPP/functional.h"
 #include "src/__support/CPP/limits.h"
 #include "src/__support/CPP/string_view.h"
-#include "src/__support/macros/config.h"
 #include "src/time/clock.h"
 
 #include <stdint.h>
 
-namespace LIBC_NAMESPACE_DECL {
+namespace LIBC_NAMESPACE {
 
 namespace benchmarks {
 
@@ -100,7 +99,7 @@ class Benchmark {
   const cpp::string_view get_name() const { return name; }
 };
 } // namespace benchmarks
-} // namespace LIBC_NAMESPACE_DECL
+} // namespace LIBC_NAMESPACE
 
 #define BENCHMARK(SuiteName, TestName, Func)                                   \
   LIBC_NAMESPACE::benchmarks::Benchmark SuiteName##_##TestName##_Instance(     \

libc/benchmarks/gpu/timing/amdgpu/timing.h

@@ -25,7 +25,7 @@
   else                                                                         \
     asm("" ::"v"(VARIABLE))
 
-namespace LIBC_NAMESPACE_DECL {
+namespace LIBC_NAMESPACE {
 
 // Returns the overhead associated with calling the profiling region. This
 // allows us to substract the constant-time overhead from the latency to
@@ -107,6 +107,6 @@ template <typename F, typename T1, typename T2>
   return stop - start;
 }
 
-} // namespace LIBC_NAMESPACE_DECL
+} // namespace LIBC_NAMESPACE
 
 #endif // LLVM_LIBC_UTILS_GPU_TIMING_AMDGPU

libc/benchmarks/gpu/timing/nvptx/timing.h

@@ -16,7 +16,7 @@
 
 #include <stdint.h>
 
-namespace LIBC_NAMESPACE_DECL {
+namespace LIBC_NAMESPACE {
 
 // Returns the overhead associated with calling the profiling region. This
 // allows us to substract the constant-time overhead from the latency to
@@ -94,6 +94,6 @@ static LIBC_INLINE uint64_t latency(F f, T1 t1, T2 t2) {
 
   return stop - start;
 }
-} // namespace LIBC_NAMESPACE_DECL
+} // namespace LIBC_NAMESPACE
 
 #endif // LLVM_LIBC_UTILS_GPU_TIMING_NVPTX