6a9c719ee1
Summary: Original patch by Kuba Mracek The %T lit expansion expands to a common directory shared between all the tests in the same directory, which is unexpected and unintuitive, and more importantly, it's been a source of subtle race conditions and flaky tests. In https://reviews.llvm.org/D35396, it was agreed that it would be best to simply ban %T and only keep %t, which is unique to each test. When a test needs a temporary directory, it can just create one using mkdir %t. This patch removes %T in compiler-rt. Differential Revision: https://reviews.llvm.org/D48618 llvm-svn: 336661
49 lines
2.3 KiB
C++
49 lines
2.3 KiB
C++
// Test various levels of coverage
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//
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// FIXME: Port the environment variable logic below for the lit shell.
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// REQUIRES: shell
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//
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// RUN: rm -rf %t-dir && mkdir %t-dir
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// RUN: %clangxx -fsanitize=shift -DGOOD_SHIFT=1 -O1 -fsanitize-coverage=func %s -o %t
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// 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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// RUN: %clangxx -fsanitize=undefined -DGOOD_SHIFT=1 -O1 -fsanitize-coverage=func %s -o %t
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// 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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// Also works without any sanitizer.
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// RUN: %clangxx -DGOOD_SHIFT=1 -O1 -fsanitize-coverage=func %s -o %t
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// 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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// RUN: %clangxx -fsanitize=shift -O1 -fsanitize-coverage=func %s -o %t
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// 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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// RUN: %clangxx -fsanitize=shift -O1 -fsanitize-coverage=bb %s -o %t
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// 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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// RUN: %clangxx -fsanitize=shift -O1 -fsanitize-coverage=edge %s -o %t
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// 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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// Coverage is not yet implemented in TSan.
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// XFAIL: ubsan-tsan
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// UNSUPPORTED: ubsan-standalone-static
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// No coverage support
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// UNSUPPORTED: openbsd
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volatile int sink;
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int main(int argc, char **argv) {
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int shift = argc * 32;
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#if GOOD_SHIFT
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shift = 3;
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#endif
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if ((argc << shift) == 16) // False.
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return 1;
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return 0;
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}
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// CHECK_WARN: shift exponent 32 is too large
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// CHECK_NOWARN-NOT: ERROR
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// FIXME: Currently, coverage instrumentation kicks in after ubsan, so we get
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// more than the minimal number of instrumented blocks.
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// FIXME: Currently, ubsan with -fno-sanitize-recover and w/o asan will fail
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// to dump coverage.
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// CHECK1: 1 PCs written
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// CHECK2: 2 PCs written
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// CHECK3: 2 PCs written
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