1 files changed, 0 insertions, 195 deletions
diff --git a/third_party/abseil_cpp/absl/debugging/internal/demangle_test.cc b/third_party/abseil_cpp/absl/debugging/internal/demangle_test.cc
deleted file mode 100644
index c6f1ce184c..0000000000
--- a/third_party/abseil_cpp/absl/debugging/internal/demangle_test.cc
+++ /dev/null
@@ -1,195 +0,0 @@
-// Copyright 2018 The Abseil Authors.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      https://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#include "absl/debugging/internal/demangle.h"
-
-#include <cstdlib>
-#include <string>
-
-#include "gtest/gtest.h"
-#include "absl/base/internal/raw_logging.h"
-#include "absl/debugging/internal/stack_consumption.h"
-#include "absl/memory/memory.h"
-
-namespace absl {
-ABSL_NAMESPACE_BEGIN
-namespace debugging_internal {
-namespace {
-
-// A wrapper function for Demangle() to make the unit test simple.
-static const char *DemangleIt(const char * const mangled) {
-  static char demangled[4096];
-  if (Demangle(mangled, demangled, sizeof(demangled))) {
-    return demangled;
-  } else {
-    return mangled;
-  }
-}
-
-// Test corner cases of bounary conditions.
-TEST(Demangle, CornerCases) {
-  char tmp[10];
-  EXPECT_TRUE(Demangle("_Z6foobarv", tmp, sizeof(tmp)));
-  // sizeof("foobar()") == 9
-  EXPECT_STREQ("foobar()", tmp);
-  EXPECT_TRUE(Demangle("_Z6foobarv", tmp, 9));
-  EXPECT_STREQ("foobar()", tmp);
-  EXPECT_FALSE(Demangle("_Z6foobarv", tmp, 8));  // Not enough.
-  EXPECT_FALSE(Demangle("_Z6foobarv", tmp, 1));
-  EXPECT_FALSE(Demangle("_Z6foobarv", tmp, 0));
-  EXPECT_FALSE(Demangle("_Z6foobarv", nullptr, 0));  // Should not cause SEGV.
-  EXPECT_FALSE(Demangle("_Z1000000", tmp, 9));
-}
-
-// Test handling of functions suffixed with .clone.N, which is used
-// by GCC 4.5.x (and our locally-modified version of GCC 4.4.x), and
-// .constprop.N and .isra.N, which are used by GCC 4.6.x.  These
-// suffixes are used to indicate functions which have been cloned
-// during optimization.  We ignore these suffixes.
-TEST(Demangle, Clones) {
-  char tmp[20];
-  EXPECT_TRUE(Demangle("_ZL3Foov", tmp, sizeof(tmp)));
-  EXPECT_STREQ("Foo()", tmp);
-  EXPECT_TRUE(Demangle("_ZL3Foov.clone.3", tmp, sizeof(tmp)));
-  EXPECT_STREQ("Foo()", tmp);
-  EXPECT_TRUE(Demangle("_ZL3Foov.constprop.80", tmp, sizeof(tmp)));
-  EXPECT_STREQ("Foo()", tmp);
-  EXPECT_TRUE(Demangle("_ZL3Foov.isra.18", tmp, sizeof(tmp)));
-  EXPECT_STREQ("Foo()", tmp);
-  EXPECT_TRUE(Demangle("_ZL3Foov.isra.2.constprop.18", tmp, sizeof(tmp)));
-  EXPECT_STREQ("Foo()", tmp);
-  // Invalid (truncated), should not demangle.
-  EXPECT_FALSE(Demangle("_ZL3Foov.clo", tmp, sizeof(tmp)));
-  // Invalid (.clone. not followed by number), should not demangle.
-  EXPECT_FALSE(Demangle("_ZL3Foov.clone.", tmp, sizeof(tmp)));
-  // Invalid (.clone. followed by non-number), should not demangle.
-  EXPECT_FALSE(Demangle("_ZL3Foov.clone.foo", tmp, sizeof(tmp)));
-  // Invalid (.constprop. not followed by number), should not demangle.
-  EXPECT_FALSE(Demangle("_ZL3Foov.isra.2.constprop.", tmp, sizeof(tmp)));
-}
-
-// Tests that verify that Demangle footprint is within some limit.
-// They are not to be run under sanitizers as the sanitizers increase
-// stack consumption by about 4x.
-#if defined(ABSL_INTERNAL_HAVE_DEBUGGING_STACK_CONSUMPTION) &&   \
-    !defined(ADDRESS_SANITIZER) && !defined(MEMORY_SANITIZER) && \
-    !defined(THREAD_SANITIZER)
-
-static const char *g_mangled;
-static char g_demangle_buffer[4096];
-static char *g_demangle_result;
-
-static void DemangleSignalHandler(int signo) {
-  if (Demangle(g_mangled, g_demangle_buffer, sizeof(g_demangle_buffer))) {
-    g_demangle_result = g_demangle_buffer;
-  } else {
-    g_demangle_result = nullptr;
-  }
-}
-
-// Call Demangle and figure out the stack footprint of this call.
-static const char *DemangleStackConsumption(const char *mangled,
-                                            int *stack_consumed) {
-  g_mangled = mangled;
-  *stack_consumed = GetSignalHandlerStackConsumption(DemangleSignalHandler);
-  ABSL_RAW_LOG(INFO, "Stack consumption of Demangle: %d", *stack_consumed);
-  return g_demangle_result;
-}
-
-// Demangle stack consumption should be within 8kB for simple mangled names
-// with some level of nesting. With alternate signal stack we have 64K,
-// but some signal handlers run on thread stack, and could have arbitrarily
-// little space left (so we don't want to make this number too large).
-const int kStackConsumptionUpperLimit = 8192;
-
-// Returns a mangled name nested to the given depth.
-static std::string NestedMangledName(int depth) {
-  std::string mangled_name = "_Z1a";
-  if (depth > 0) {
-    mangled_name += "IXL";
-    mangled_name += NestedMangledName(depth - 1);
-    mangled_name += "EEE";
-  }
-  return mangled_name;
-}
-
-TEST(Demangle, DemangleStackConsumption) {
-  // Measure stack consumption of Demangle for nested mangled names of varying
-  // depth.  Since Demangle is implemented as a recursive descent parser,
-  // stack consumption will grow as the nesting depth increases.  By measuring
-  // the stack consumption for increasing depths, we can see the growing
-  // impact of any stack-saving changes made to the code for Demangle.
-  int stack_consumed = 0;
-
-  const char *demangled =
-      DemangleStackConsumption("_Z6foobarv", &stack_consumed);
-  EXPECT_STREQ("foobar()", demangled);
-  EXPECT_GT(stack_consumed, 0);
-  EXPECT_LT(stack_consumed, kStackConsumptionUpperLimit);
-
-  const std::string nested_mangled_name0 = NestedMangledName(0);
-  demangled = DemangleStackConsumption(nested_mangled_name0.c_str(),
-                                       &stack_consumed);
-  EXPECT_STREQ("a", demangled);
-  EXPECT_GT(stack_consumed, 0);
-  EXPECT_LT(stack_consumed, kStackConsumptionUpperLimit);
-
-  const std::string nested_mangled_name1 = NestedMangledName(1);
-  demangled = DemangleStackConsumption(nested_mangled_name1.c_str(),
-                                       &stack_consumed);
-  EXPECT_STREQ("a<>", demangled);
-  EXPECT_GT(stack_consumed, 0);
-  EXPECT_LT(stack_consumed, kStackConsumptionUpperLimit);
-
-  const std::string nested_mangled_name2 = NestedMangledName(2);
-  demangled = DemangleStackConsumption(nested_mangled_name2.c_str(),
-                                       &stack_consumed);
-  EXPECT_STREQ("a<>", demangled);
-  EXPECT_GT(stack_consumed, 0);
-  EXPECT_LT(stack_consumed, kStackConsumptionUpperLimit);
-
-  const std::string nested_mangled_name3 = NestedMangledName(3);
-  demangled = DemangleStackConsumption(nested_mangled_name3.c_str(),
-                                       &stack_consumed);
-  EXPECT_STREQ("a<>", demangled);
-  EXPECT_GT(stack_consumed, 0);
-  EXPECT_LT(stack_consumed, kStackConsumptionUpperLimit);
-}
-
-#endif  // Stack consumption tests
-
-static void TestOnInput(const char* input) {
-  static const int kOutSize = 1048576;
-  auto out = absl::make_unique<char[]>(kOutSize);
-  Demangle(input, out.get(), kOutSize);
-}
-
-TEST(DemangleRegression, NegativeLength) {
-  TestOnInput("_ZZn4");
-}
-
-TEST(DemangleRegression, DeeplyNestedArrayType) {
-  const int depth = 100000;
-  std::string data = "_ZStI";
-  data.reserve(data.size() + 3 * depth + 1);
-  for (int i = 0; i < depth; i++) {
-    data += "A1_";
-  }
-  TestOnInput(data.c_str());
-}
-
-}  // namespace
-}  // namespace debugging_internal
-ABSL_NAMESPACE_END
-}  // namespace absl