Remove support for pnaclcall attribute

Summary:
It was used for interoperability with PNaCl's calling conventions, but
it's no longer needed.

Also Remove NaCl*ABIInfo which just existed to delegate to either the portable
or native ABIInfo, and remove checkCallingConvention which was now a no-op
override.

Reviewers: jvoung

Subscribers: jfb, llvm-commits

Differential Revision: http://reviews.llvm.org/D7206

llvm-svn: 227362

1 files changed, 2 insertions, 57 deletions

diff --git a/clang/lib/CodeGen/TargetInfo.cpp b/clang/lib/CodeGen/TargetInfo.cpp
index 25d7d57bad3..8c28dc7e79e 100644
--- a/clang/lib/CodeGen/TargetInfo.cpp
+++ b/clang/lib/CodeGen/TargetInfo.cpp
@@ -3092,23 +3092,11 @@ llvm::Value *WinX86_64ABIInfo::EmitVAArg(llvm::Value *VAListAddr, QualType Ty,
 
 namespace {
 
-class NaClX86_64ABIInfo : public ABIInfo {
- public:
-  NaClX86_64ABIInfo(CodeGen::CodeGenTypes &CGT, bool HasAVX)
-      : ABIInfo(CGT), PInfo(CGT), NInfo(CGT, HasAVX) {}
-  void computeInfo(CGFunctionInfo &FI) const override;
-  llvm::Value *EmitVAArg(llvm::Value *VAListAddr, QualType Ty,
-                         CodeGenFunction &CGF) const override;
- private:
-  PNaClABIInfo PInfo;  // Used for generating calls with pnaclcall callingconv.
-  X86_64ABIInfo NInfo; // Used for everything else.
-};
-
 class NaClX86_64TargetCodeGenInfo : public TargetCodeGenInfo  {
   bool HasAVX;
  public:
    NaClX86_64TargetCodeGenInfo(CodeGen::CodeGenTypes &CGT, bool HasAVX)
-       : TargetCodeGenInfo(new NaClX86_64ABIInfo(CGT, HasAVX)), HasAVX(HasAVX) {
+       : TargetCodeGenInfo(new X86_64ABIInfo(CGT, HasAVX)), HasAVX(HasAVX) {
    }
    unsigned getOpenMPSimdDefaultAlignment(QualType) const override {
      return HasAVX ? 32 : 16;
@@ -3117,21 +3105,6 @@ class NaClX86_64TargetCodeGenInfo : public TargetCodeGenInfo  {
 
 }
 
-void NaClX86_64ABIInfo::computeInfo(CGFunctionInfo &FI) const {
-  if (FI.getASTCallingConvention() == CC_PnaclCall)
-    PInfo.computeInfo(FI);
-  else
-    NInfo.computeInfo(FI);
-}
-
-llvm::Value *NaClX86_64ABIInfo::EmitVAArg(llvm::Value *VAListAddr, QualType Ty,
-                                          CodeGenFunction &CGF) const {
-  // Always use the native convention; calling pnacl-style varargs functions
-  // is unuspported.
-  return NInfo.EmitVAArg(VAListAddr, Ty, CGF);
-}
-
-
 // PowerPC-32
 namespace {
 /// PPC32_SVR4_ABIInfo - The 32-bit PowerPC ELF (SVR4) ABI information.
@@ -5098,39 +5071,11 @@ llvm::Value *ARMABIInfo::EmitVAArg(llvm::Value *VAListAddr, QualType Ty,
 }
 
 namespace {
-
-class NaClARMABIInfo : public ABIInfo {
- public:
-  NaClARMABIInfo(CodeGen::CodeGenTypes &CGT, ARMABIInfo::ABIKind Kind)
-      : ABIInfo(CGT), PInfo(CGT), NInfo(CGT, Kind) {}
-  void computeInfo(CGFunctionInfo &FI) const override;
-  llvm::Value *EmitVAArg(llvm::Value *VAListAddr, QualType Ty,
-                         CodeGenFunction &CGF) const override;
- private:
-  PNaClABIInfo PInfo; // Used for generating calls with pnaclcall callingconv.
-  ARMABIInfo NInfo; // Used for everything else.
-};
-
 class NaClARMTargetCodeGenInfo : public TargetCodeGenInfo  {
  public:
   NaClARMTargetCodeGenInfo(CodeGen::CodeGenTypes &CGT, ARMABIInfo::ABIKind Kind)
-      : TargetCodeGenInfo(new NaClARMABIInfo(CGT, Kind)) {}
+      : TargetCodeGenInfo(new ARMABIInfo(CGT, Kind)) {}
 };
-
-}
-
-void NaClARMABIInfo::computeInfo(CGFunctionInfo &FI) const {
-  if (FI.getASTCallingConvention() == CC_PnaclCall)
-    PInfo.computeInfo(FI);
-  else
-    static_cast<const ABIInfo&>(NInfo).computeInfo(FI);
-}
-
-llvm::Value *NaClARMABIInfo::EmitVAArg(llvm::Value *VAListAddr, QualType Ty,
-                                       CodeGenFunction &CGF) const {
-  // Always use the native convention; calling pnacl-style varargs functions
-  // is unsupported.
-  return static_cast<const ABIInfo&>(NInfo).EmitVAArg(VAListAddr, Ty, CGF);
 }
 
 //===----------------------------------------------------------------------===//