diff options
Diffstat (limited to 'test/ubsan/TestCases/Pointer/alignment-assumption-attribute-assume_aligned-on-function-two-params.cpp')
-rw-r--r-- | test/ubsan/TestCases/Pointer/alignment-assumption-attribute-assume_aligned-on-function-two-params.cpp | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/test/ubsan/TestCases/Pointer/alignment-assumption-attribute-assume_aligned-on-function-two-params.cpp b/test/ubsan/TestCases/Pointer/alignment-assumption-attribute-assume_aligned-on-function-two-params.cpp new file mode 100644 index 000000000..33aa132f6 --- /dev/null +++ b/test/ubsan/TestCases/Pointer/alignment-assumption-attribute-assume_aligned-on-function-two-params.cpp @@ -0,0 +1,28 @@ +// RUN: %clang -x c -fsanitize=alignment -O0 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not=" assumption " --implicit-check-not="note:" --implicit-check-not="error:" +// RUN: %clang -x c -fsanitize=alignment -O1 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not=" assumption " --implicit-check-not="note:" --implicit-check-not="error:" +// RUN: %clang -x c -fsanitize=alignment -O2 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not=" assumption " --implicit-check-not="note:" --implicit-check-not="error:" +// RUN: %clang -x c -fsanitize=alignment -O3 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not=" assumption " --implicit-check-not="note:" --implicit-check-not="error:" + +// RUN: %clang -x c++ -fsanitize=alignment -O0 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not=" assumption " --implicit-check-not="note:" --implicit-check-not="error:" +// RUN: %clang -x c++ -fsanitize=alignment -O1 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not=" assumption " --implicit-check-not="note:" --implicit-check-not="error:" +// RUN: %clang -x c++ -fsanitize=alignment -O2 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not=" assumption " --implicit-check-not="note:" --implicit-check-not="error:" +// RUN: %clang -x c++ -fsanitize=alignment -O3 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not=" assumption " --implicit-check-not="note:" --implicit-check-not="error:" + +#include <stdlib.h> + +char *__attribute__((assume_aligned(0x8000, 1))) passthrough(char *x) { + return x; +} + +int main(int argc, char* argv[]) { + char *ptr = (char *)malloc(3); + + passthrough(ptr + 2); + // CHECK: {{.*}}alignment-assumption-{{.*}}.cpp:[[@LINE-1]]:3: runtime error: assumption of 32768 byte alignment (with offset of 1 byte) for pointer of type 'char *' failed + // CHECK: {{.*}}alignment-assumption-{{.*}}.cpp:[[@LINE-9]]:22: note: alignment assumption was specified here + // CHECK: 0x{{.*}}: note: offset address is {{.*}} aligned, misalignment offset is {{.*}} byte + + free(ptr); + + return 0; +} |