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libcxx: update to LLVM 18

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release/18.x branch, commit 78b99c73ee4b96fe9ce0e294d4632326afb2db42

This adds the flag `-D_LIBCPP_HARDENING_MODE` which is determined based
on the Zig optimization mode.

This commit also fixes libunwind, libcxx, and libcxxabi to properly
report sub compilation errors.
This commit is contained in:
Andrew Kelley
2024-04-26 15:33:29 -07:00
parent bc6ebc6f25
commit 06ee65af9e
902 changed files with 80977 additions and 107576 deletions
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11
lib/libcxx/src/memory_resource.cpp vendored
View File

@@ -74,7 +74,7 @@ union ResourceInitHelper {
__null_memory_resource_imp null_res;
} resources;
char dummy;
_LIBCPP_CONSTEXPR_SINCE_CXX14 ResourceInitHelper() : resources() {}
constexpr ResourceInitHelper() : resources() {}
~ResourceInitHelper() {}
};
@@ -175,7 +175,7 @@ void* unsynchronized_pool_resource::__adhoc_pool::__do_allocate(memory_resource*
void unsynchronized_pool_resource::__adhoc_pool::__do_deallocate(
memory_resource* upstream, void* p, size_t bytes, size_t align) {
_LIBCPP_ASSERT_UNCATEGORIZED(__first_ != nullptr, "deallocating a block that was not allocated with this allocator");
_LIBCPP_ASSERT_NON_NULL(__first_ != nullptr, "deallocating a block that was not allocated with this allocator");
if (__first_->__start_ == p) {
__chunk_footer* next = __first_->__next_;
upstream->deallocate(p, __first_->__allocation_size(), __first_->__align_);
@@ -189,7 +189,8 @@ void unsynchronized_pool_resource::__adhoc_pool::__do_deallocate(
return;
}
}
_LIBCPP_ASSERT_UNCATEGORIZED(false, "deallocating a block that was not allocated with this allocator");
// The request to deallocate memory ends up being a no-op, likely resulting in a memory leak.
_LIBCPP_ASSERT_VALID_DEALLOCATION(false, "deallocating a block that was not allocated with this allocator");
}
}
@@ -230,7 +231,7 @@ public:
}
void* __allocate_in_new_chunk(memory_resource* upstream, size_t block_size, size_t chunk_size) {
_LIBCPP_ASSERT_UNCATEGORIZED(chunk_size % block_size == 0, "");
_LIBCPP_ASSERT_INTERNAL(chunk_size % block_size == 0, "");
static_assert(__default_alignment >= alignof(std::max_align_t), "");
static_assert(__default_alignment >= alignof(__chunk_footer), "");
static_assert(__default_alignment >= alignof(__vacancy_header), "");
@@ -401,7 +402,7 @@ void unsynchronized_pool_resource::do_deallocate(void* p, size_t bytes, size_t a
if (i == __num_fixed_pools_)
return __adhoc_pool_.__do_deallocate(__res_, p, bytes, align);
else {
_LIBCPP_ASSERT_UNCATEGORIZED(
_LIBCPP_ASSERT_NON_NULL(
__fixed_pools_ != nullptr, "deallocating a block that was not allocated with this allocator");
__fixed_pools_[i].__evacuate(p);
}