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      1 // Test various levels of coverage
      2 //
      3 // RUN: %clangxx_asan -O1 -fsanitize-coverage=func  %s -o %t
      4 // RUN: %env_asan_opts=coverage=1:coverage_bitset=1:verbosity=1 %run %t 2>&1 | FileCheck %s --check-prefix=CHECK1
      5 // RUN: %clangxx_asan -O1 -fsanitize-coverage=bb  %s -o %t
      6 // RUN: %env_asan_opts=coverage=1:coverage_bitset=1:verbosity=1 %run %t 2>&1 | FileCheck %s --check-prefix=CHECK2
      7 // RUN: %clangxx_asan -O1 -fsanitize-coverage=edge  %s -o %t
      8 // RUN: %env_asan_opts=coverage=1:coverage_bitset=1:verbosity=1 %run %t 2>&1 | FileCheck %s --check-prefix=CHECK3
      9 // RUN: %clangxx_asan -O1 -fsanitize-coverage=edge -mllvm -sanitizer-coverage-block-threshold=0 %s -o %t
     10 // RUN: %env_asan_opts=coverage=1:coverage_bitset=1:verbosity=1 %run %t 2>&1 | FileCheck %s --check-prefix=CHECK3
     11 // RUN: %clangxx_asan -O1 -fsanitize-coverage=edge,8bit-counters %s -o %t
     12 // RUN: %env_asan_opts=coverage=1:coverage_counters=1:verbosity=1 %run %t 2>&1 | FileCheck %s --check-prefix=CHECK_COUNTERS
     13 
     14 // RUN: %env_asan_opts=coverage=1:coverage_bitset=0:verbosity=1 %run %t 2>&1 | FileCheck %s --check-prefix=CHECK3_NOBITSET
     15 // RUN: %env_asan_opts=coverage=1:verbosity=1 %run %t 2>&1 | FileCheck %s --check-prefix=CHECK3_NOBITSET
     16 // RUN: %env_asan_opts=coverage=1:coverage_pcs=0:verbosity=1 %run %t 2>&1 | FileCheck %s --check-prefix=CHECK3_NOPCS
     17 //
     18 // REQUIRES: asan-64-bits
     19 // UNSUPPORTED: android
     20 volatile int sink;
     21 int main(int argc, char **argv) {
     22   if (argc == 0)
     23     sink = 0;
     24 }
     25 
     26 // CHECK1: CovDump: bitset of 1 bits written for '{{.*}}', 1 bits are set
     27 // CHECK1:  1 PCs written
     28 // CHECK2: CovDump: bitset of 2 bits written for '{{.*}}', 1 bits are set
     29 // CHECK2:  1 PCs written
     30 // CHECK3: CovDump: bitset of 3 bits written for '{{.*}}', 2 bits are set
     31 // CHECK3:  2 PCs written
     32 // CHECK3_NOBITSET-NOT: bitset of
     33 // CHECK3_NOPCS-NOT: PCs written
     34 // CHECK_COUNTERS: CovDump: 3 counters written for
     35