Author: atanasyan Date: Thu Jul 20 13:34:18 2017 New Revision: 308667 URL: http://llvm.org/viewvc/llvm-project?rev=308667&view=rev Log: [CodeGen][mips] Support `long_call/far/near` attributes
This patch adds support for the `long_call`, `far`, and `near` attributes for MIPS targets. The `long_call` and `far` attributes are synonyms. All these attributes override `-mlong-calls` / `-mno-long-calls` command line options for particular function. Differential revision: https://reviews.llvm.org/D35479 Added: cfe/trunk/test/CodeGen/long-call-attr.c cfe/trunk/test/Sema/attr-long-call.c Modified: cfe/trunk/include/clang/Basic/Attr.td cfe/trunk/include/clang/Basic/AttrDocs.td cfe/trunk/lib/CodeGen/CodeGenModule.cpp cfe/trunk/lib/CodeGen/CodeGenModule.h cfe/trunk/lib/CodeGen/TargetInfo.cpp cfe/trunk/lib/CodeGen/TargetInfo.h cfe/trunk/lib/Sema/SemaDeclAttr.cpp cfe/trunk/test/Misc/pragma-attribute-supported-attributes-list.test Modified: cfe/trunk/include/clang/Basic/Attr.td URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Basic/Attr.td?rev=308667&r1=308666&r2=308667&view=diff ============================================================================== --- cfe/trunk/include/clang/Basic/Attr.td (original) +++ cfe/trunk/include/clang/Basic/Attr.td Thu Jul 20 13:34:18 2017 @@ -1188,6 +1188,18 @@ def MicroMips : InheritableAttr, TargetS let Documentation = [MicroMipsDocs]; } +def MipsLongCall : InheritableAttr, TargetSpecificAttr<TargetMips> { + let Spellings = [GCC<"long_call">, GCC<"far">]; + let Subjects = SubjectList<[Function]>; + let Documentation = [MipsCallStyleDocs]; +} + +def MipsShortCall : InheritableAttr, TargetSpecificAttr<TargetMips> { + let Spellings = [GCC<"near">]; + let Subjects = SubjectList<[Function]>; + let Documentation = [MipsCallStyleDocs]; +} + def Mode : Attr { let Spellings = [GCC<"mode">]; let Subjects = SubjectList<[Var, Enum, TypedefName, Field], ErrorDiag, Modified: cfe/trunk/include/clang/Basic/AttrDocs.td URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Basic/AttrDocs.td?rev=308667&r1=308666&r2=308667&view=diff ============================================================================== --- cfe/trunk/include/clang/Basic/AttrDocs.td (original) +++ cfe/trunk/include/clang/Basic/AttrDocs.td Thu Jul 20 13:34:18 2017 @@ -1323,6 +1323,26 @@ on the command line. }]; } +def MipsCallStyleDocs : Documentation { + let Category = DocCatFunction; + let Content = [{ +Clang supports the ``__attribute__((long_call))``, ``__attribute__((far))``, +and ``__attribute__((near))`` attributes on MIPS targets. These attributes may +only be added to function declarations and change the code generated +by the compiler when directly calling the function. The ``near`` attribute +allows calls to the function to be made using the ``jal`` instruction, which +requires the function to be located in the same naturally aligned 256MB +segment as the caller. The ``long_call`` and ``far`` attributes are synonyms +and require the use of a different call sequence that works regardless +of the distance between the functions. + +These attributes have no effect for position-independent code. + +These attributes take priority over command line switches such +as ``-mlong-calls`` and ``-mno-long-calls``. + }]; +} + def AVRInterruptDocs : Documentation { let Category = DocCatFunction; let Content = [{ Modified: cfe/trunk/lib/CodeGen/CodeGenModule.cpp URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CodeGenModule.cpp?rev=308667&r1=308666&r2=308667&view=diff ============================================================================== --- cfe/trunk/lib/CodeGen/CodeGenModule.cpp (original) +++ cfe/trunk/lib/CodeGen/CodeGenModule.cpp Thu Jul 20 13:34:18 2017 @@ -1080,7 +1080,7 @@ void CodeGenModule::setNonAliasAttribute GO->setSection(SA->getName()); } - getTargetCodeGenInfo().setTargetAttributes(D, GO, *this); + getTargetCodeGenInfo().setTargetAttributes(D, GO, *this, ForDefinition); } void CodeGenModule::SetInternalFunctionAttributes(const Decl *D, @@ -1147,7 +1147,9 @@ void CodeGenModule::CreateFunctionTypeMe void CodeGenModule::SetFunctionAttributes(GlobalDecl GD, llvm::Function *F, bool IsIncompleteFunction, - bool IsThunk) { + bool IsThunk, + ForDefinition_t IsForDefinition) { + if (llvm::Intrinsic::ID IID = F->getIntrinsicID()) { // If this is an intrinsic function, set the function's attributes // to the intrinsic's attributes. @@ -1157,8 +1159,13 @@ void CodeGenModule::SetFunctionAttribute const auto *FD = cast<FunctionDecl>(GD.getDecl()); - if (!IsIncompleteFunction) + if (!IsIncompleteFunction) { SetLLVMFunctionAttributes(FD, getTypes().arrangeGlobalDeclaration(GD), F); + // Setup target-specific attributes. + if (!IsForDefinition) + getTargetCodeGenInfo().setTargetAttributes(FD, F, *this, + NotForDefinition); + } // Add the Returned attribute for "this", except for iOS 5 and earlier // where substantial code, including the libstdc++ dylib, was compiled with @@ -2123,7 +2130,8 @@ llvm::Constant *CodeGenModule::GetOrCrea assert(F->getName() == MangledName && "name was uniqued!"); if (D) - SetFunctionAttributes(GD, F, IsIncompleteFunction, IsThunk); + SetFunctionAttributes(GD, F, IsIncompleteFunction, IsThunk, + IsForDefinition); if (ExtraAttrs.hasAttributes(llvm::AttributeList::FunctionIndex)) { llvm::AttrBuilder B(ExtraAttrs, llvm::AttributeList::FunctionIndex); F->addAttributes(llvm::AttributeList::FunctionIndex, B); Modified: cfe/trunk/lib/CodeGen/CodeGenModule.h URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CodeGenModule.h?rev=308667&r1=308666&r2=308667&view=diff ============================================================================== --- cfe/trunk/lib/CodeGen/CodeGenModule.h (original) +++ cfe/trunk/lib/CodeGen/CodeGenModule.h Thu Jul 20 13:34:18 2017 @@ -1239,7 +1239,8 @@ private: /// Set function attributes for a function declaration. void SetFunctionAttributes(GlobalDecl GD, llvm::Function *F, - bool IsIncompleteFunction, bool IsThunk); + bool IsIncompleteFunction, bool IsThunk, + ForDefinition_t IsForDefinition); void EmitGlobalDefinition(GlobalDecl D, llvm::GlobalValue *GV = nullptr); Modified: cfe/trunk/lib/CodeGen/TargetInfo.cpp URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/TargetInfo.cpp?rev=308667&r1=308666&r2=308667&view=diff ============================================================================== --- cfe/trunk/lib/CodeGen/TargetInfo.cpp (original) +++ cfe/trunk/lib/CodeGen/TargetInfo.cpp Thu Jul 20 13:34:18 2017 @@ -1037,7 +1037,8 @@ public: const llvm::Triple &Triple, const CodeGenOptions &Opts); void setTargetAttributes(const Decl *D, llvm::GlobalValue *GV, - CodeGen::CodeGenModule &CGM) const override; + CodeGen::CodeGenModule &CGM, + ForDefinition_t IsForDefinition) const override; int getDwarfEHStackPointer(CodeGen::CodeGenModule &CGM) const override { // Darwin uses different dwarf register numbers for EH. @@ -1904,9 +1905,11 @@ bool X86_32TargetCodeGenInfo::isStructRe } } -void X86_32TargetCodeGenInfo::setTargetAttributes(const Decl *D, - llvm::GlobalValue *GV, - CodeGen::CodeGenModule &CGM) const { +void X86_32TargetCodeGenInfo::setTargetAttributes( + const Decl *D, llvm::GlobalValue *GV, CodeGen::CodeGenModule &CGM, + ForDefinition_t IsForDefinition) const { + if (!IsForDefinition) + return; if (const FunctionDecl *FD = dyn_cast_or_null<FunctionDecl>(D)) { if (FD->hasAttr<X86ForceAlignArgPointerAttr>()) { // Get the LLVM function. @@ -2266,7 +2269,10 @@ public: } void setTargetAttributes(const Decl *D, llvm::GlobalValue *GV, - CodeGen::CodeGenModule &CGM) const override { + CodeGen::CodeGenModule &CGM, + ForDefinition_t IsForDefinition) const override { + if (!IsForDefinition) + return; if (const FunctionDecl *FD = dyn_cast_or_null<FunctionDecl>(D)) { if (FD->hasAttr<AnyX86InterruptAttr>()) { llvm::Function *Fn = cast<llvm::Function>(GV); @@ -2314,7 +2320,8 @@ public: Win32StructABI, NumRegisterParameters, false) {} void setTargetAttributes(const Decl *D, llvm::GlobalValue *GV, - CodeGen::CodeGenModule &CGM) const override; + CodeGen::CodeGenModule &CGM, + ForDefinition_t IsForDefinition) const override; void getDependentLibraryOption(llvm::StringRef Lib, llvm::SmallString<24> &Opt) const override { @@ -2342,11 +2349,12 @@ static void addStackProbeSizeTargetAttri } } -void WinX86_32TargetCodeGenInfo::setTargetAttributes(const Decl *D, - llvm::GlobalValue *GV, - CodeGen::CodeGenModule &CGM) const { - X86_32TargetCodeGenInfo::setTargetAttributes(D, GV, CGM); - +void WinX86_32TargetCodeGenInfo::setTargetAttributes( + const Decl *D, llvm::GlobalValue *GV, CodeGen::CodeGenModule &CGM, + ForDefinition_t IsForDefinition) const { + X86_32TargetCodeGenInfo::setTargetAttributes(D, GV, CGM, IsForDefinition); + if (!IsForDefinition) + return; addStackProbeSizeTargetAttribute(D, GV, CGM); } @@ -2357,7 +2365,8 @@ public: : TargetCodeGenInfo(new WinX86_64ABIInfo(CGT)) {} void setTargetAttributes(const Decl *D, llvm::GlobalValue *GV, - CodeGen::CodeGenModule &CGM) const override; + CodeGen::CodeGenModule &CGM, + ForDefinition_t IsForDefinition) const override; int getDwarfEHStackPointer(CodeGen::CodeGenModule &CGM) const override { return 7; @@ -2386,11 +2395,12 @@ public: } }; -void WinX86_64TargetCodeGenInfo::setTargetAttributes(const Decl *D, - llvm::GlobalValue *GV, - CodeGen::CodeGenModule &CGM) const { - TargetCodeGenInfo::setTargetAttributes(D, GV, CGM); - +void WinX86_64TargetCodeGenInfo::setTargetAttributes( + const Decl *D, llvm::GlobalValue *GV, CodeGen::CodeGenModule &CGM, + ForDefinition_t IsForDefinition) const { + TargetCodeGenInfo::setTargetAttributes(D, GV, CGM, IsForDefinition); + if (!IsForDefinition) + return; if (const FunctionDecl *FD = dyn_cast_or_null<FunctionDecl>(D)) { if (FD->hasAttr<AnyX86InterruptAttr>()) { llvm::Function *Fn = cast<llvm::Function>(GV); @@ -5475,7 +5485,10 @@ public: } void setTargetAttributes(const Decl *D, llvm::GlobalValue *GV, - CodeGen::CodeGenModule &CGM) const override { + CodeGen::CodeGenModule &CGM, + ForDefinition_t IsForDefinition) const override { + if (!IsForDefinition) + return; const FunctionDecl *FD = dyn_cast_or_null<FunctionDecl>(D); if (!FD) return; @@ -5517,7 +5530,8 @@ public: : ARMTargetCodeGenInfo(CGT, K) {} void setTargetAttributes(const Decl *D, llvm::GlobalValue *GV, - CodeGen::CodeGenModule &CGM) const override; + CodeGen::CodeGenModule &CGM, + ForDefinition_t IsForDefinition) const override; void getDependentLibraryOption(llvm::StringRef Lib, llvm::SmallString<24> &Opt) const override { @@ -5531,8 +5545,11 @@ public: }; void WindowsARMTargetCodeGenInfo::setTargetAttributes( - const Decl *D, llvm::GlobalValue *GV, CodeGen::CodeGenModule &CGM) const { - ARMTargetCodeGenInfo::setTargetAttributes(D, GV, CGM); + const Decl *D, llvm::GlobalValue *GV, CodeGen::CodeGenModule &CGM, + ForDefinition_t IsForDefinition) const { + ARMTargetCodeGenInfo::setTargetAttributes(D, GV, CGM, IsForDefinition); + if (!IsForDefinition) + return; addStackProbeSizeTargetAttribute(D, GV, CGM); } } @@ -6061,7 +6078,9 @@ public: : TargetCodeGenInfo(new NVPTXABIInfo(CGT)) {} void setTargetAttributes(const Decl *D, llvm::GlobalValue *GV, - CodeGen::CodeGenModule &M) const override; + CodeGen::CodeGenModule &M, + ForDefinition_t IsForDefinition) const override; + private: // Adds a NamedMDNode with F, Name, and Operand as operands, and adds the // resulting MDNode to the nvvm.annotations MDNode. @@ -6115,9 +6134,11 @@ Address NVPTXABIInfo::EmitVAArg(CodeGenF llvm_unreachable("NVPTX does not support varargs"); } -void NVPTXTargetCodeGenInfo:: -setTargetAttributes(const Decl *D, llvm::GlobalValue *GV, - CodeGen::CodeGenModule &M) const{ +void NVPTXTargetCodeGenInfo::setTargetAttributes( + const Decl *D, llvm::GlobalValue *GV, CodeGen::CodeGenModule &M, + ForDefinition_t IsForDefinition) const { + if (!IsForDefinition) + return; const FunctionDecl *FD = dyn_cast_or_null<FunctionDecl>(D); if (!FD) return; @@ -6553,14 +6574,17 @@ public: MSP430TargetCodeGenInfo(CodeGenTypes &CGT) : TargetCodeGenInfo(new DefaultABIInfo(CGT)) {} void setTargetAttributes(const Decl *D, llvm::GlobalValue *GV, - CodeGen::CodeGenModule &M) const override; + CodeGen::CodeGenModule &M, + ForDefinition_t IsForDefinition) const override; }; } -void MSP430TargetCodeGenInfo::setTargetAttributes(const Decl *D, - llvm::GlobalValue *GV, - CodeGen::CodeGenModule &M) const { +void MSP430TargetCodeGenInfo::setTargetAttributes( + const Decl *D, llvm::GlobalValue *GV, CodeGen::CodeGenModule &M, + ForDefinition_t IsForDefinition) const { + if (!IsForDefinition) + return; if (const FunctionDecl *FD = dyn_cast_or_null<FunctionDecl>(D)) { if (const MSP430InterruptAttr *attr = FD->getAttr<MSP430InterruptAttr>()) { // Handle 'interrupt' attribute: @@ -6619,10 +6643,21 @@ public: } void setTargetAttributes(const Decl *D, llvm::GlobalValue *GV, - CodeGen::CodeGenModule &CGM) const override { + CodeGen::CodeGenModule &CGM, + ForDefinition_t IsForDefinition) const override { const FunctionDecl *FD = dyn_cast_or_null<FunctionDecl>(D); if (!FD) return; llvm::Function *Fn = cast<llvm::Function>(GV); + + if (FD->hasAttr<MipsLongCallAttr>()) + Fn->addFnAttr("long-call"); + else if (FD->hasAttr<MipsShortCallAttr>()) + Fn->addFnAttr("short-call"); + + // Other attributes do not have a meaning for declarations. + if (!IsForDefinition) + return; + if (FD->hasAttr<Mips16Attr>()) { Fn->addFnAttr("mips16"); } @@ -6992,7 +7027,10 @@ public: : TargetCodeGenInfo(new DefaultABIInfo(CGT)) { } void setTargetAttributes(const Decl *D, llvm::GlobalValue *GV, - CodeGen::CodeGenModule &CGM) const override { + CodeGen::CodeGenModule &CGM, + ForDefinition_t IsForDefinition) const override { + if (!IsForDefinition) + return; const auto *FD = dyn_cast_or_null<FunctionDecl>(D); if (!FD) return; auto *Fn = cast<llvm::Function>(GV); @@ -7020,11 +7058,15 @@ public: : DefaultTargetCodeGenInfo(CGT) {} void setTargetAttributes(const Decl *D, llvm::GlobalValue *GV, - CodeGen::CodeGenModule &M) const override; + CodeGen::CodeGenModule &M, + ForDefinition_t IsForDefinition) const override; }; void TCETargetCodeGenInfo::setTargetAttributes( - const Decl *D, llvm::GlobalValue *GV, CodeGen::CodeGenModule &M) const { + const Decl *D, llvm::GlobalValue *GV, CodeGen::CodeGenModule &M, + ForDefinition_t IsForDefinition) const { + if (!IsForDefinition) + return; const FunctionDecl *FD = dyn_cast_or_null<FunctionDecl>(D); if (!FD) return; @@ -7364,7 +7406,8 @@ public: AMDGPUTargetCodeGenInfo(CodeGenTypes &CGT) : TargetCodeGenInfo(new AMDGPUABIInfo(CGT)) {} void setTargetAttributes(const Decl *D, llvm::GlobalValue *GV, - CodeGen::CodeGenModule &M) const override; + CodeGen::CodeGenModule &M, + ForDefinition_t IsForDefinition) const override; unsigned getOpenCLKernelCallingConv() const override; llvm::Constant *getNullPointer(const CodeGen::CodeGenModule &CGM, @@ -7380,9 +7423,10 @@ public: } void AMDGPUTargetCodeGenInfo::setTargetAttributes( - const Decl *D, - llvm::GlobalValue *GV, - CodeGen::CodeGenModule &M) const { + const Decl *D, llvm::GlobalValue *GV, CodeGen::CodeGenModule &M, + ForDefinition_t IsForDefinition) const { + if (!IsForDefinition) + return; const FunctionDecl *FD = dyn_cast_or_null<FunctionDecl>(D); if (!FD) return; Modified: cfe/trunk/lib/CodeGen/TargetInfo.h URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/TargetInfo.h?rev=308667&r1=308666&r2=308667&view=diff ============================================================================== --- cfe/trunk/lib/CodeGen/TargetInfo.h (original) +++ cfe/trunk/lib/CodeGen/TargetInfo.h Thu Jul 20 13:34:18 2017 @@ -15,6 +15,7 @@ #ifndef LLVM_CLANG_LIB_CODEGEN_TARGETINFO_H #define LLVM_CLANG_LIB_CODEGEN_TARGETINFO_H +#include "CodeGenModule.h" #include "CGValue.h" #include "clang/AST/Type.h" #include "clang/Basic/LLVM.h" @@ -34,7 +35,6 @@ class Decl; namespace CodeGen { class ABIInfo; class CallArgList; -class CodeGenModule; class CodeGenFunction; class CGFunctionInfo; @@ -55,7 +55,8 @@ public: /// setTargetAttributes - Provides a convenient hook to handle extra /// target-specific attributes for the given global. virtual void setTargetAttributes(const Decl *D, llvm::GlobalValue *GV, - CodeGen::CodeGenModule &M) const {} + CodeGen::CodeGenModule &M, + ForDefinition_t IsForDefinition) const {} /// emitTargetMD - Provides a convenient hook to handle extra /// target-specific metadata for the given global. Modified: cfe/trunk/lib/Sema/SemaDeclAttr.cpp URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Sema/SemaDeclAttr.cpp?rev=308667&r1=308666&r2=308667&view=diff ============================================================================== --- cfe/trunk/lib/Sema/SemaDeclAttr.cpp (original) +++ cfe/trunk/lib/Sema/SemaDeclAttr.cpp Thu Jul 20 13:34:18 2017 @@ -5986,6 +5986,14 @@ static void ProcessDeclAttribute(Sema &S case AttributeList::AT_NoMicroMips: handleSimpleAttribute<NoMicroMipsAttr>(S, D, Attr); break; + case AttributeList::AT_MipsLongCall: + handleSimpleAttributeWithExclusions<MipsLongCallAttr, MipsShortCallAttr>( + S, D, Attr); + break; + case AttributeList::AT_MipsShortCall: + handleSimpleAttributeWithExclusions<MipsShortCallAttr, MipsLongCallAttr>( + S, D, Attr); + break; case AttributeList::AT_AMDGPUFlatWorkGroupSize: handleAMDGPUFlatWorkGroupSizeAttr(S, D, Attr); break; Added: cfe/trunk/test/CodeGen/long-call-attr.c URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGen/long-call-attr.c?rev=308667&view=auto ============================================================================== --- cfe/trunk/test/CodeGen/long-call-attr.c (added) +++ cfe/trunk/test/CodeGen/long-call-attr.c Thu Jul 20 13:34:18 2017 @@ -0,0 +1,17 @@ +// RUN: %clang_cc1 -triple mips-linux-gnu -emit-llvm -o - %s | FileCheck %s + +void __attribute__((long_call)) foo1 (void); + +void __attribute__((far)) foo2 (void) {} + +// CHECK: define void @foo2() [[FAR:#[0-9]+]] + +void __attribute__((near)) foo3 (void) { foo1(); } + +// CHECK: define void @foo3() [[NEAR:#[0-9]+]] + +// CHECK: declare void @foo1() [[LONGDECL:#[0-9]+]] + +// CHECK: attributes [[FAR]] = { {{.*}} "long-call" {{.*}} } +// CHECK: attributes [[NEAR]] = { {{.*}} "short-call" {{.*}} } +// CHECK: attributes [[LONGDECL]] = { {{.*}} "long-call" {{.*}} } Modified: cfe/trunk/test/Misc/pragma-attribute-supported-attributes-list.test URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Misc/pragma-attribute-supported-attributes-list.test?rev=308667&r1=308666&r2=308667&view=diff ============================================================================== --- cfe/trunk/test/Misc/pragma-attribute-supported-attributes-list.test (original) +++ cfe/trunk/test/Misc/pragma-attribute-supported-attributes-list.test Thu Jul 20 13:34:18 2017 @@ -2,7 +2,7 @@ // The number of supported attributes should never go down! -// CHECK: #pragma clang attribute supports 62 attributes: +// CHECK: #pragma clang attribute supports 64 attributes: // CHECK-NEXT: AMDGPUFlatWorkGroupSize (SubjectMatchRule_function) // CHECK-NEXT: AMDGPUNumSGPR (SubjectMatchRule_function) // CHECK-NEXT: AMDGPUNumVGPR (SubjectMatchRule_function) @@ -31,6 +31,8 @@ // CHECK-NEXT: InternalLinkage (SubjectMatchRule_variable, SubjectMatchRule_function, SubjectMatchRule_record) // CHECK-NEXT: LTOVisibilityPublic (SubjectMatchRule_record) // CHECK-NEXT: MicroMips (SubjectMatchRule_function) +// CHECK-NEXT: MipsLongCall (SubjectMatchRule_function) +// CHECK-NEXT: MipsShortCall (SubjectMatchRule_function) // CHECK-NEXT: NoDebug (SubjectMatchRule_hasType_functionType, SubjectMatchRule_objc_method, SubjectMatchRule_variable_not_is_parameter) // CHECK-NEXT: NoDuplicate (SubjectMatchRule_function) // CHECK-NEXT: NoMicroMips (SubjectMatchRule_function) Added: cfe/trunk/test/Sema/attr-long-call.c URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Sema/attr-long-call.c?rev=308667&view=auto ============================================================================== --- cfe/trunk/test/Sema/attr-long-call.c (added) +++ cfe/trunk/test/Sema/attr-long-call.c Thu Jul 20 13:34:18 2017 @@ -0,0 +1,18 @@ +// RUN: %clang_cc1 -triple mips-linux-gnu -fsyntax-only -verify %s + +__attribute__((long_call(0))) void foo1(); // expected-error {{'long_call' attribute takes no arguments}} +__attribute__((far(0))) void foo2(); // expected-error {{'far' attribute takes no arguments}} +__attribute__((near(0))) void foo3(); // expected-error {{'near' attribute takes no arguments}} + +__attribute((long_call)) int a; // expected-warning {{attribute only applies to functions}} +__attribute((far)) int a; // expected-warning {{attribute only applies to functions}} +__attribute((near)) int a; // expected-warning {{attribute only applies to functions}} + +__attribute((long_call)) void foo4(); +__attribute((far)) void foo5(); +__attribute((near)) void foo6(); + +__attribute((long_call, far)) void foo7(); + +__attribute((far, near)) void foo8(); // expected-error {{'far' and 'near' attributes are not compatible}} \ + // expected-note {{conflicting attribute is here}} _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
