| 1 | // Test various levels of coverage |
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| 2 | // |
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| 3 | // FIXME: Port the environment variable logic below for the lit shell. |
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| 4 | // REQUIRES: shell |
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| 5 | // |
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| 6 | // RUN: rm -rf %t-dir && mkdir %t-dir |
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| 7 | // RUN: %clangxx -fsanitize=shift -DGOOD_SHIFT=1 -O1 -fsanitize-coverage=func,trace-pc-guard %s -o %t |
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| 8 | // RUN: %env_ubsan_opts=coverage=1:verbosity=1:coverage_dir='"%t-dir"' %run %t 2>&1 | FileCheck %s --check-prefix=CHECK1 --check-prefix=CHECK_NOWARN |
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| 9 | // RUN: %clangxx -fsanitize=undefined -DGOOD_SHIFT=1 -O1 -fsanitize-coverage=func,trace-pc-guard %s -o %t |
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| 10 | // RUN: %env_ubsan_opts=coverage=1:verbosity=1:coverage_dir='"%t-dir"' %run %t 2>&1 | FileCheck %s --check-prefix=CHECK1 --check-prefix=CHECK_NOWARN |
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| 11 | |
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| 12 | // Also works without any sanitizer. |
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| 13 | // RUN: %clangxx -DGOOD_SHIFT=1 -O1 -fsanitize-coverage=func,trace-pc-guard %s -o %t |
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| 14 | // RUN: %env_ubsan_opts=coverage=1:verbosity=1:coverage_dir='"%t-dir"' %run %t 2>&1 | FileCheck %s --check-prefix=CHECK1 --check-prefix=CHECK_NOWARN |
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| 15 | |
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| 16 | // RUN: %clangxx -fsanitize=shift -O1 -fsanitize-coverage=func,trace-pc-guard %s -o %t |
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| 17 | // RUN: %env_ubsan_opts=coverage=1:verbosity=1:coverage_dir='"%t-dir"' %run %t 2>&1 | FileCheck %s --check-prefix=CHECK1 --check-prefix=CHECK_WARN |
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| 18 | // RUN: %clangxx -fsanitize=shift -O1 -fsanitize-coverage=bb,trace-pc-guard %s -o %t |
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| 19 | // RUN: %env_ubsan_opts=coverage=1:verbosity=1:coverage_dir='"%t-dir"' %run %t 2>&1 | FileCheck %s --check-prefix=CHECK2 --check-prefix=CHECK_WARN |
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| 20 | // RUN: %clangxx -fsanitize=shift -O1 -fsanitize-coverage=edge,trace-pc-guard %s -o %t |
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| 21 | // RUN: %env_ubsan_opts=coverage=1:verbosity=1:coverage_dir='"%t-dir"' %run %t 2>&1 | FileCheck %s --check-prefix=CHECK3 --check-prefix=CHECK_WARN |
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| 22 | |
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| 23 | // Coverage is not yet implemented in TSan. |
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| 24 | // XFAIL: ubsan-tsan |
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| 25 | // UNSUPPORTED: ubsan-standalone-static |
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| 26 | // No coverage support |
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| 27 | // UNSUPPORTED: target={{.*openbsd.*}} |
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| 28 | |
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| 29 | volatile int sink; |
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| 30 | int main(int argc, char **argv) { |
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| 31 | int shift = argc * 33; |
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| 32 | #if GOOD_SHIFT |
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| 33 | shift = 3; |
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| 34 | #endif |
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| 35 | if ((argc << shift) == 16) // False. |
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| 36 | return 1; |
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| 37 | return 0; |
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| 38 | } |
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| 39 | |
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| 40 | // CHECK_WARN: shift exponent 33 is too large |
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| 41 | // CHECK_NOWARN-NOT: ERROR |
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| 42 | // FIXME: Currently, coverage instrumentation kicks in after ubsan, so we get |
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| 43 | // more than the minimal number of instrumented blocks. |
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| 44 | // FIXME: Currently, ubsan with -fno-sanitize-recover and w/o asan will fail |
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| 45 | // to dump coverage. |
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| 46 | // CHECK1: 1 PCs written |
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| 47 | // CHECK2: 2 PCs written |
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| 48 | // CHECK3: 2 PCs written |
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| 49 | |
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