Don't use posix_memalign on Windows platforms

llvm-svn: 290448

1 files changed, 4 insertions, 0 deletions

diff --git a/libcxx/src/new.cpp b/libcxx/src/new.cpp
index 1465bcd5f91..3d8b2a9d8a6 100644
--- a/libcxx/src/new.cpp
+++ b/libcxx/src/new.cpp
@@ -70,7 +70,11 @@ operator new(std::size_t size, std::align_val_t alignment) _THROW_BAD_ALLOC
     if (static_cast<size_t>(alignment) < sizeof(void*))
       alignment = std::align_val_t(sizeof(void*));
     void* p;
+#if defined(_WIN32)
+    while ((p = _aligned_malloc(size, static_cast<size_t>(alignment))) == nullptr)
+#else
     while (::posix_memalign(&p, static_cast<size_t>(alignment), size) != 0)
+#endif
     {
         // If posix_memalign fails and there is a new_handler,
         // call it to try free up memory.