MSDN (https://msdn.microsoft.com/en-us/library/h5w10wxs.aspx) indicates
that `__declspec(naked)` is only permitted on x86 and ARM targets.
Testing with cl does confirm this behaviour. Provide a warning for use
of `__declspec(naked)` on x64.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@299774
91177308-0d34-0410-b5e6-
96231b3b80d8
"'regparm' parameter must be between 0 and %0 inclusive">;
def err_attribute_not_supported_in_lang : Error<
"%0 attribute is not supported in %select{C|C++|Objective-C}1">;
-
+def err_attribute_not_supported_on_arch
+ : Error<"%0 attribute is not supported on '%1'">;
// Clang-Specific Attributes
def warn_attribute_iboutlet : Warning<
Attr.getName()))
return;
+ if (Attr.isDeclspecAttribute()) {
+ const auto &Triple = S.getASTContext().getTargetInfo().getTriple();
+ const auto &Arch = Triple.getArch();
+ if (Arch != llvm::Triple::x86 &&
+ (Arch != llvm::Triple::arm && Arch != llvm::Triple::thumb)) {
+ S.Diag(Attr.getLoc(), diag::err_attribute_not_supported_on_arch)
+ << Attr.getName() << Triple.getArchName();
+ return;
+ }
+ }
+
D->addAttr(::new (S.Context) NakedAttr(Attr.getRange(), S.Context,
Attr.getAttributeSpellingListIndex()));
}
--- /dev/null
+// RUN: %clang_cc1 -triple i686-unknown-windows-msvc -fsyntax-only -fdeclspec -verify %s
+// RUN: %clang_cc1 -triple thumbv7-unknown-windows-msvc -fsyntax-only -fdeclspec -verify %s
+// RUN: %clang_cc1 -triple x86_64-unknown-windows-msvc -fsyntax-only -fdeclspec -verify %s
+#if defined(_M_IX86) || defined(_M_ARM)
+// CHECK: expected-no-diagnostics
+#endif
+
+void __declspec(naked) f(void) {}
+#if !defined(_M_IX86) && !defined(_M_ARM)
+// expected-error@-2{{'naked' attribute is not supported on 'x86_64'}}
+#endif
// REQUIRES: x86-registered-target
-// RUN: %clang_cc1 %s -triple x86_64-apple-darwin10 -fms-extensions -fasm-blocks -Wno-microsoft -Wunused-label -verify -fsyntax-only
+// RUN: %clang_cc1 %s -triple i386-apple-darwin10 -fms-extensions -fasm-blocks -Wno-microsoft -Wunused-label -verify -fsyntax-only
void t1(void) {
__asm __asm // expected-error {{__asm used with no assembly instructions}}