llvm-project/compiler-rt/test/asan/TestCases/alloca_big_alignment.cpp
Charlie Barto 73114e43ee
[compiler-rt][windows] Test fixups for MSVC. (#109887)
- add XFAIL/UNSUPPORTED annotations for tests run wtih real MSVC 
- macroify usages of clang-specific attributes in asan tests

- Add substitution for /Oy-/-fno-omit-frame-pointer
  This makes the dll_intercept_memset test work with mingw

These are most of the changes that are required to get things running
with MSVC, however there are some remaining build-flag tweaks.

Nothing in here should be a functional change.
2025-02-10 10:51:08 -08:00

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// RUN: %clangxx_asan -O0 -mllvm -asan-instrument-dynamic-allocas %s -o %t
// RUN: not %run %t 2>&1 | FileCheck %s
//
// XFAIL: msvc
#include "defines.h"
#include <assert.h>
#include <stdint.h>
ATTRIBUTE_NOINLINE void foo(int index, int len) {
volatile char str[len] ATTRIBUTE_ALIGNED(128);
assert(!(reinterpret_cast<uintptr_t>(str) & 127L));
str[index] = '1'; // BOOM
// CHECK: ERROR: AddressSanitizer: dynamic-stack-buffer-overflow on address [[ADDR:0x[0-9a-f]+]]
// CHECK: WRITE of size 1 at [[ADDR]] thread T0
}
int main(int argc, char **argv) {
foo(10, 10);
return 0;
}