commit c5509a07cacfea16b4fb3c8d552a33083b713697 (tree)
parent 004c383292412faef7987b5fb5da73a2971176ee
Author: Wink Saville <wink@saville.com>
Date: Mon, 24 Sep 2018 09:33:45 -0700
Ignore class-memaccess error for gcc 8 and above
On Arch Linux the current default compiler is gcc 8.2.1 and this change
is needed to ignore the following errors:
In file included from /home/wink/local/include/llvm/ADT/STLExtras.h:21,
from /home/wink/local/include/llvm/ADT/StringRef.h:13,
from /home/wink/local/include/llvm/ADT/StringMap.h:17,
from /home/wink/local/include/llvm/Support/Host.h:17,
from /home/wink/local/include/llvm/ADT/Hashing.h:49,
from /home/wink/local/include/llvm/ADT/ArrayRef.h:13,
from /home/wink/local/include/llvm/ADT/APFloat.h:21,
from /home/wink/local/include/clang/AST/APValue.h:18,
from /home/wink/local/include/clang/AST/Decl.h:17,
from /home/wink/local/include/clang/AST/ASTTypeTraits.h:20,
from /home/wink/local/include/clang/AST/ASTContext.h:18,
from /home/wink/local/include/clang/Frontend/ASTUnit.h:18,
from /home/wink/prgs/ziglang/zig/src/translate_c.cpp:18:
/home/wink/local/include/llvm/ADT/SmallVector.h: In instantiation of ‘void llvm::SmallVectorTemplateBase<T, true>::push_back(const T&) [with T = std::pair<void*, long unsigned int>]’:
/home/wink/local/include/llvm/Support/Allocator.h:249:33: required from ‘void* llvm::BumpPtrAllocatorImpl<AllocatorT, SlabSize, SizeThreshold>::Allocate(size_t, size_t) [with AllocatorT = llvm::MallocAllocator; long unsigned int SlabSize = 4096; long unsigned int SizeThreshold = 4096; size_t = long unsigned int]’
/home/wink/local/include/clang/AST/ASTContext.h:659:42: required from here
/home/wink/local/include/llvm/ADT/SmallVector.h:313:11: error: ‘void* memcpy(void*, const void*, size_t)’ writing to an object of type ‘struct std::pair<void*, long unsigned int>’ with no trivial copy-assignment; use copy-assignment or copy-initialization instead [-Werror=class-memaccess]
memcpy(this->end(), &Elt, sizeof(T));
~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/8.2.1/utility:70,
from /home/wink/local/include/llvm/Support/type_traits.h:19,
from /home/wink/local/include/llvm/Support/Casting.h:19,
from /home/wink/local/include/clang/Basic/LLVM.h:22,
from /home/wink/local/include/clang/AST/APValue.h:17,
from /home/wink/local/include/clang/AST/Decl.h:17,
from /home/wink/local/include/clang/AST/ASTTypeTraits.h:20,
from /home/wink/local/include/clang/AST/ASTContext.h:18,
from /home/wink/local/include/clang/Frontend/ASTUnit.h:18,
from /home/wink/prgs/ziglang/zig/src/translate_c.cpp:18:
/usr/include/c++/8.2.1/bits/stl_pair.h:198:12: note: ‘struct std::pair<void*, long unsigned int>’ declared here
struct pair
^~~~
Diffstat:
2 files changed, 18 insertions(+), 0 deletions(-)
diff --git a/src/translate_c.cpp b/src/translate_c.cpp
@@ -15,10 +15,19 @@
#include "parser.hpp"
+#if __GNUC__ >= 8
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wclass-memaccess"
+#endif
+
#include <clang/Frontend/ASTUnit.h>
#include <clang/Frontend/CompilerInstance.h>
#include <clang/AST/Expr.h>
+#if __GNUC__ >= 8
+#pragma GCC diagnostic pop
+#endif
+
#include <string.h>
using namespace clang;
diff --git a/src/zig_llvm.cpp b/src/zig_llvm.cpp
@@ -15,6 +15,11 @@
#include "zig_llvm.h"
+#if __GNUC__ >= 8
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wclass-memaccess"
+#endif
+
#include <llvm/Analysis/TargetLibraryInfo.h>
#include <llvm/Analysis/TargetTransformInfo.h>
#include <llvm/IR/DIBuilder.h>
@@ -42,6 +47,10 @@
#include <lld/Common/Driver.h>
+#if __GNUC__ >= 8
+#pragma GCC diagnostic pop
+#endif
+
#include <new>
#include <stdlib.h>
