In this case Clang does not warn because the format string ``s`` and
the corresponding arguments are annotated. If the arguments are
incorrect, the caller of ``foo`` will receive a warning.
-
-LLVM-Specific Calling Conventions
-=================================
-
-Clang supports `LLVM's coldcc calling convention
-<http://llvm.org/docs/LangRef.html#calling-conventions>`_ via the ``coldcc``
-GNU-style attribute, or the ``clang::coldcc`` C++11 attribute. However,
-this calling convention is not guaranteed to be ABI compatible between
-different versions of the compiler.
CXCallingConv_AAPCS_VFP = 7,
CXCallingConv_PnaclCall = 8,
CXCallingConv_IntelOclBicc = 9,
- CXCallingConv_Cold = 10,
CXCallingConv_Invalid = 100,
CXCallingConv_Unexposed = 200
// No operand.
attr_noreturn,
attr_cdecl,
- attr_coldcc,
attr_fastcall,
attr_stdcall,
attr_thiscall,
let Spellings = [GNU<"cold">, CXX11<"gnu", "cold">];
}
-def ColdCC : InheritableAttr {
- let Spellings = [GNU<"coldcc">, CXX11<"clang", "coldcc">];
-}
-
def Common : InheritableAttr {
let Spellings = [GNU<"common">, CXX11<"gnu", "common">];
}
enum CallingConv {
CC_Default,
CC_C, // __attribute__((cdecl))
- CC_Cold, // __attribute__((coldcc))
CC_X86StdCall, // __attribute__((stdcall))
CC_X86FastCall, // __attribute__((fastcall))
CC_X86ThisCall, // __attribute__((thiscall))
CC_IntelOclBicc // __attribute__((intel_ocl_bicc))
};
- inline bool isTargetSpecific(CallingConv CC) {
- return CC >= CC_X86StdCall;
- }
-
} // end namespace clang
#endif // LLVM_CLANG_BASIC_SPECIFIERS_H
/// and be substituted with the default calling convention, or (someday)
/// produce an error (such as using thiscall on a non-instance function).
virtual CallingConvCheckResult checkCallingConvention(CallingConv CC) const {
- return CCCR_Warning;
+ switch (CC) {
+ default:
+ return CCCR_Warning;
+ case CC_C:
+ case CC_Default:
+ return CCCR_OK;
+ }
}
protected:
case CC_AAPCS_VFP: return set("cc", "aapcs_vfp");
case CC_PnaclCall: return set("cc", "pnaclcall");
case CC_IntelOclBicc: return set("cc", "intel_ocl_bicc");
- case CC_Cold: return set("cc", "coldcc");
}
}
llvm_unreachable("no name for default cc");
case CC_C: return "cdecl";
- case CC_Cold: return "coldcc";
case CC_X86StdCall: return "stdcall";
case CC_X86FastCall: return "fastcall";
case CC_X86ThisCall: return "thiscall";
case CC_C:
OS << " __attribute__((cdecl))";
break;
- case CC_Cold:
- OS << " __attribute__((coldcc))";
- break;
case CC_X86StdCall:
OS << " __attribute__((stdcall))";
break;
case AttributedType::attr_noreturn: OS << "noreturn"; break;
case AttributedType::attr_cdecl: OS << "cdecl"; break;
- case AttributedType::attr_coldcc: OS << "coldcc"; break;
case AttributedType::attr_fastcall: OS << "fastcall"; break;
case AttributedType::attr_stdcall: OS << "stdcall"; break;
case AttributedType::attr_thiscall: OS << "thiscall"; break;
// We accept all non-ARM calling conventions
return (CC == CC_X86ThisCall ||
CC == CC_X86FastCall ||
- CC == CC_X86StdCall ||
+ CC == CC_X86StdCall ||
+ CC == CC_C ||
CC == CC_X86Pascal ||
CC == CC_IntelOclBicc) ? CCCR_OK : CCCR_Warning;
}
}
virtual CallingConvCheckResult checkCallingConvention(CallingConv CC) const {
- return CC == CC_IntelOclBicc ? CCCR_OK : CCCR_Warning;
+ return (CC == CC_Default ||
+ CC == CC_C ||
+ CC == CC_IntelOclBicc) ? CCCR_OK : CCCR_Warning;
}
virtual CallingConv getDefaultCallingConv(CallingConvMethodType MT) const {
static unsigned ClangCallConvToLLVMCallConv(CallingConv CC) {
switch (CC) {
default: return llvm::CallingConv::C;
- case CC_Cold: return llvm::CallingConv::Cold;
case CC_X86StdCall: return llvm::CallingConv::X86_StdCall;
case CC_X86FastCall: return llvm::CallingConv::X86_FastCall;
case CC_X86ThisCall: return llvm::CallingConv::X86_ThisCall;
static CallingConv getCallingConventionForDecl(const Decl *D) {
// Set the appropriate calling convention for the Function.
- if (D->hasAttr<ColdCCAttr>())
- return CC_Cold;
-
if (D->hasAttr<StdCallAttr>())
return CC_X86StdCall;
}
switch (Attr.getKind()) {
- case AttributeList::AT_ColdCC:
- D->addAttr(::new (S.Context)
- ColdCCAttr(Attr.getRange(), S.Context,
- Attr.getAttributeSpellingListIndex()));
- return;
case AttributeList::AT_FastCall:
D->addAttr(::new (S.Context)
FastCallAttr(Attr.getRange(), S.Context,
// move to TargetAttributesSema one day.
switch (attr.getKind()) {
case AttributeList::AT_CDecl: CC = CC_C; break;
- case AttributeList::AT_ColdCC: CC = CC_Cold; break;
case AttributeList::AT_FastCall: CC = CC_X86FastCall; break;
case AttributeList::AT_StdCall: CC = CC_X86StdCall; break;
case AttributeList::AT_ThisCall: CC = CC_X86ThisCall; break;
default: llvm_unreachable("unexpected attribute kind");
}
- if (!isTargetSpecific(CC))
- return false;
-
const TargetInfo &TI = Context.getTargetInfo();
TargetInfo::CallingConvCheckResult A = TI.checkCallingConvention(CC);
if (A == TargetInfo::CCCR_Warning) {
break;
case AttributeList::AT_StdCall:
case AttributeList::AT_CDecl:
- case AttributeList::AT_ColdCC:
case AttributeList::AT_FastCall:
case AttributeList::AT_ThisCall:
case AttributeList::AT_Pascal:
#define FUNCTION_TYPE_ATTRS_CASELIST \
case AttributeList::AT_NoReturn: \
case AttributeList::AT_CDecl: \
- case AttributeList::AT_ColdCC: \
case AttributeList::AT_FastCall: \
case AttributeList::AT_StdCall: \
case AttributeList::AT_ThisCall: \
return AttributeList::AT_NoReturn;
case AttributedType::attr_cdecl:
return AttributeList::AT_CDecl;
- case AttributedType::attr_coldcc:
- return AttributeList::AT_ColdCC;
case AttributedType::attr_fastcall:
return AttributeList::AT_FastCall;
case AttributedType::attr_stdcall:
+++ /dev/null
-// RUN: %clang_cc1 -triple i386-unknown-unknown -Werror -emit-llvm -o - %s | FileCheck %s
-// RUN: %clang_cc1 -triple x86_64-unknown-unknown -Werror -emit-llvm -o - %s | FileCheck %s
-// RUN: %clang_cc1 -triple armv7-unknown-unknown -Werror -emit-llvm -o - %s | FileCheck %s
-
-void __attribute__((coldcc)) f1(void);
-
-void f2(void) {
- f1();
-// CHECK: call coldcc void @f1()
-}
-
-// CHECK: declare coldcc void @f1()
TCALLINGCONV(AAPCS_VFP);
TCALLINGCONV(PnaclCall);
TCALLINGCONV(IntelOclBicc);
- TCALLINGCONV(Cold);
}
#undef TCALLINGCONV
}