<commit_before>// Check that we can turn a function id to a function address, and also get the
// maximum function id for the current binary.
//
// RUN: %clangxx_xray -std=c++11 %s -o %t
// RUN: XRAY_OPTIONS="patch_premain=false xray_naive_log=false" %run %t
// FIXME: When we know why this fails in ppc, un-xfail it.
// XFAIL: powerpc64le

#include "xray/xray_interface.h"
#include <algorithm>
#include <cassert>
#include <cstdio>
#include <iterator>
#include <set>

[[clang::xray_always_instrument]] void bar(){}

[[clang::xray_always_instrument]] void foo() {
  bar();
}

[[clang::xray_always_instrument]] int main(int argc, char *argv[]) {
  assert(__xray_max_function_id() != 0 && "we need xray instrumentation!");
  std::set<void *> must_be_instrumented = {reinterpret_cast<void *>(&foo),
                                           reinterpret_cast<void *>(&bar),
                                           reinterpret_cast<void *>(&main)};
  std::set<void *> all_instrumented;
  for (auto i = __xray_max_function_id(); i != 0; --i) {
    auto addr = __xray_function_address(i);
    all_instrumented.insert(reinterpret_cast<void *>(addr));
  }
  assert(all_instrumented.size() == __xray_max_function_id() &&
         "each function id must be assigned to a unique function");

  std::set<void *> common;
  std::set_intersection(all_instrumented.begin(), all_instrumented.end(),
                        must_be_instrumented.begin(),
                        must_be_instrumented.end(),
                        std::inserter(common, common.begin()));
  assert(
      common == must_be_instrumented &&
      "we should see all explicitly instrumented functions with function ids");
  return common == must_be_instrumented ? 0 : 1;
}<commit_msg>[XRay] Fix the test func-id-utils.cc on PPC.<commit_after>// Check that we can turn a function id to a function address, and also get the
// maximum function id for the current binary.
//
// RUN: %clangxx_xray -std=c++11 %s -o %t
// RUN: XRAY_OPTIONS="patch_premain=false xray_naive_log=false" %run %t

#include "xray/xray_interface.h"
#include <algorithm>
#include <cassert>
#include <cstdio>
#include <iterator>
#include <set>

[[clang::xray_always_instrument]] void bar(){}

[[clang::xray_always_instrument]] void foo() {
  bar();
}

[[clang::xray_always_instrument]] int main(int argc, char *argv[]) {
  assert(__xray_max_function_id() != 0 && "we need xray instrumentation!");
  std::set<void *> must_be_instrumented = {reinterpret_cast<void *>(&foo),
                                           reinterpret_cast<void *>(&bar),
                                           reinterpret_cast<void *>(&main)};
  std::set<void *> all_instrumented;
  for (auto i = __xray_max_function_id(); i != 0; --i) {
    auto addr = __xray_function_address(i);
    all_instrumented.insert(reinterpret_cast<void *>(addr));
  }
  assert(all_instrumented.size() == __xray_max_function_id() &&
         "each function id must be assigned to a unique function");

  std::set<void *> not_instrumented;
  const auto comp = [](void *lhs, void *rhs) {
#ifdef __PPC__
    return reinterpret_cast<uintptr_t>(lhs) + 8 <
           reinterpret_cast<uintptr_t>(rhs);
#else
    return lhs < rhs;
#endif
  };
  std::set_difference(must_be_instrumented.begin(), must_be_instrumented.end(),
                      all_instrumented.begin(), all_instrumented.end(),
                      std::inserter(not_instrumented, not_instrumented.begin()),
                      comp);
  assert(
      not_instrumented.empty() &&
      "we should see all explicitly instrumented functions with function ids");
  return not_instrumented.empty() ? 0 : 1;
}
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