treewide: Relax llvm warnings.

Author: xlauko

include/vast/Dialect/HighLevel/HighLevel.hpp

@@ -2,11 +2,15 @@
 
 #pragma once
 
-#include "mlir/IR/BuiltinOps.h"
-#include "mlir/IR/BuiltinTypes.h"
-#include "mlir/IR/Dialect.h"
-#include "mlir/IR/OperationSupport.h"
-#include "mlir/Interfaces/SideEffectInterfaces.h"
+#include "vast/Util/Warnings.hpp"
+
+VAST_RELAX_WARNINGS
+#include <mlir/IR/BuiltinOps.h>
+#include <mlir/IR/BuiltinTypes.h>
+#include <mlir/IR/Dialect.h>
+#include <mlir/IR/OperationSupport.h>
+#include <mlir/Interfaces/SideEffectInterfaces.h>
+VAST_RELAX_WARNINGS
 
 #include "vast/Dialect/HighLevel/HighLevelTypes.hpp"
 #include "vast/Dialect/HighLevel/HighLevelDialect.h.inc"

include/vast/Dialect/HighLevel/HighLevelTypes.hpp

@@ -2,12 +2,18 @@
 
 #pragma once
 
-#include "mlir/IR/MLIRContext.h"
-#include "mlir/IR/TypeSupport.h"
-#include "clang/AST/Type.h"
-#include "llvm/ADT/Hashing.h"
-#include "mlir/IR/Builders.h"
-#include "mlir/IR/Dialect.h"
+#include "vast/Util/Warnings.hpp"
+
+VAST_RELAX_WARNINGS
+#include <mlir/IR/MLIRContext.h>
+#include <mlir/IR/TypeSupport.h>
+#include <mlir/IR/Builders.h>
+#include <mlir/IR/Dialect.h>
+
+#include <clang/AST/Type.h>
+
+#include <llvm/ADT/Hashing.h>
+VAST_UNRELAX_WARNINGS
 
 namespace vast::hl
 {

include/vast/Translation/Types.hpp

@@ -1,10 +1,17 @@
 // Copyright (c) 2021-present, Trail of Bits, Inc.
 
+#pragma once
+
+#include "vast/Util/Warnings.hpp"
+
+VAST_RELAX_WARNINGS
 #include <mlir/IR/BuiltinTypes.h>
-#include <clang/AST/Type.h>
 #include <mlir/IR/MLIRContext.h>
-#include <clang/AST/ASTContext.h>
+
 #include <clang/AST/AST.h>
+#include <clang/AST/ASTContext.h>
+#include <clang/AST/Type.h>
+VAST_UNRELAX_WARNINGS
 
 namespace vast::hl
 {

include/vast/Util/Warnings.hpp

@@ -0,0 +1,17 @@
+/*
+ * Copyright (c) 2021 Trail of Bits, Inc.
+ */
+
+#pragma once
+
+#define VAST_RELAX_WARNINGS \
+  _Pragma( "clang diagnostic push" ) \
+  _Pragma( "clang diagnostic ignored \"-Wsign-conversion\"" ) \
+  _Pragma( "clang diagnostic ignored \"-Wconversion\"" ) \
+  _Pragma( "clang diagnostic ignored \"-Wold-style-cast\"" ) \
+  _Pragma( "clang diagnostic ignored \"-Wunused-parameter\"" ) \
+  _Pragma( "clang diagnostic ignored \"-Wcast-align\"" ) \
+  _Pragma( "clang diagnostic ignored \"-Wimplicit-int-conversion\"" )
+
+#define VAST_UNRELAX_WARNINGS \
+  _Pragma( "clang diagnostic pop" )

lib/vast/Translation/FromSource.cpp

@@ -1,5 +1,8 @@
 // Copyright (c) 2021-present, Trail of Bits, Inc.
 
+#include "vast/Util/Warnings.hpp"
+
+VAST_RELAX_WARNINGS
 #include <mlir/IR/Location.h>
 #include <mlir/IR/MLIRContext.h>
 #include <mlir/IR/BuiltinOps.h>
@@ -37,6 +40,7 @@
 #include <llvm/Support/Debug.h>
 #include <llvm/ADT/None.h>
 #include <llvm/Support/ErrorHandling.h>
+VAST_UNRELAX_WARNINGS
 
 #include "vast/Translation/Types.hpp"
 #include "vast/Dialect/HighLevel/HighLevel.hpp"
@@ -50,6 +54,7 @@
 #include <cstdio>
 #include <cstdlib>
 #include <fstream>
+#include <optional>
 
 #define DEBUG_TYPE "vast-from-source"