[PATCH] D157445: [CodeGen][UBSan] Add support for handling attributed functions in getUBSanFunctionTypeHash.

[Usama Hameed via Phabricator via cfe-commits]

usama54321 updated this revision to Diff 550475.
usama54321 retitled this revision from "    [CodeGen][UBSan] Add support for handling attributed functions in getUBSanFunctionTypeHash." to "[CodeGen][UBSan] Add support for handling attributed functions in getUBSanFunctionTypeHash.".
usama54321 added a comment.

Updated PR according to feedback


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D157445/new/

https://reviews.llvm.org/D157445

Files:
  clang/lib/CodeGen/CodeGenFunction.cpp
  clang/test/CodeGen/ubsan-function-attributed.c


Index: clang/test/CodeGen/ubsan-function-attributed.c
===================================================================
--- /dev/null
+++ clang/test/CodeGen/ubsan-function-attributed.c
@@ -0,0 +1,13 @@
+// RUN: %clang_cc1 -S -triple x86_64 -std=c17 -fsanitize=function %s -o - | FileCheck %s --check-prefixes=CHECK
+
+// CHECK: .long	248076293
+void __attribute__((ms_abi)) f(void) {}
+
+// CHECK: .long	905068220
+void g(void) {}
+
+// CHECK: .long	1717976574
+void __attribute__((ms_abi)) f_no_prototype() {}
+
+// CHECK: .long	1717976574
+void g_no_prototype() {}
Index: clang/lib/CodeGen/CodeGenFunction.cpp
===================================================================
--- clang/lib/CodeGen/CodeGenFunction.cpp
+++ clang/lib/CodeGen/CodeGenFunction.cpp
@@ -572,7 +572,7 @@
 CodeGenFunction::getUBSanFunctionTypeHash(QualType Ty) const {
   // Remove any (C++17) exception specifications, to allow calling e.g. a
   // noexcept function through a non-noexcept pointer.
-  if (!isa<FunctionNoProtoType>(Ty))
+  if (!Ty->isFunctionNoProtoType())
     Ty = getContext().getFunctionTypeWithExceptionSpec(Ty, EST_None);
   std::string Mangled;
   llvm::raw_string_ostream Out(Mangled);


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