33 changes: 33 additions & 0 deletions compiler-rt/test/ubsan/TestCases/Integer/suppressions.cpp
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// RUN: %clangxx -fsanitize=integer -g0 %s -o %t

// Fails without any suppression.
// RUN: %env_ubsan_opts=halt_on_error=1 not %run %t 2>&1 | FileCheck %s

// RUN: echo "signed-integer-overflow:%t" > %t.wrong-supp
// RUN: %env_ubsan_opts=halt_on_error=1:suppressions="%t.wrong-supp" not %run %t 2>&1 | FileCheck %s

// RUN: echo "unsigned-integer-overflow:do_overflow" > %t.func-supp
// RUN: %env_ubsan_opts=halt_on_error=1:suppressions="%t.func-supp" %run %t
// RUN: echo "unsigned-integer-overflow:%t" > %t.module-supp
// RUN: %env_ubsan_opts=halt_on_error=1:suppressions="%t.module-supp" %run %t

// Note: file-level suppressions should work even without debug info.
// RUN: echo "unsigned-integer-overflow:%s" > %t.file-supp
// RUN: %env_ubsan_opts=halt_on_error=1:suppressions="%t.file-supp" %run %t

// Suppressions don't work for unrecoverable kinds.
// RUN: %clangxx -fsanitize=integer -fno-sanitize-recover=integer %s -o %t-norecover
// RUN: %env_ubsan_opts=halt_on_error=1:suppressions="%t.module-supp" not %run %t-norecover 2>&1 | FileCheck %s

#include <stdint.h>

extern "C" void do_overflow() {
(void)(uint64_t(10000000000000000000ull) + uint64_t(9000000000000000000ull));
// CHECK: runtime error: unsigned integer overflow
}

int main() {
do_overflow();
return 0;
}