text: // Tests trace pc guard coverage collection.
  //
  // REQUIRES: has_sancovcc,stable-runtime
  // UNSUPPORTED: i386-darwin
  // XFAIL: tsan,powerpc64,s390x,mips
  //
  // RUN: DIR=%t_workdir
  // RUN: rm -rf $DIR
  // RUN: mkdir -p $DIR
  // RUN: cd $DIR
  // RUN: %clangxx -O0 -fsanitize-coverage=trace-pc-guard %s -ldl -o %t
  // RUN: %env_tool_opts=coverage=1 %t 2>&1 | FileCheck %s
  // RUN: %sancovcc  -covered-functions -strip_path_prefix=TestCases/ *.sancov %t 2>&1 | \
  // RUN:   FileCheck --check-prefix=CHECK-SANCOV %s
  // RUN: %env_tool_opts=coverage=0 %t 2>&1 | FileCheck --check-prefix=CHECK-NOCOV %s
  // RUN: rm -rf $DIR
  // Make some room to stabilize line numbers
  //
  //
  //
  #include <stdio.h>
  
  int foo() {
    fprintf(stderr, "foo\n");
    return 1;
  }
  
  int main() {
    fprintf(stderr, "main\n");
    foo();
    foo();
  }
  
  // CHECK: main
  // CHECK-NEXT: foo
  // CHECK-NEXT: foo
  // CHECK-NEXT: SanitizerCoverage: ./sanitizer_coverage_trace_pc_guard.{{.*}}.sancov: 2 PCs written
  //
  // CHECK-SANCOV: sanitizer_coverage_trace_pc_guard.cc:23 foo
  // CHECK-SANCOV-NEXT: sanitizer_coverage_trace_pc_guard.cc:28 main
  //
  // CHECK-NOCOV-NOT: SanitizerCoverage
  