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Support Swift calling convention for PPC64 targets 

This adds basic support for the Swift calling convention with PPC64 targets.
Patch provided by Atul Sowani in bug report #37223

llvm-svn: 333316
This commit is contained in:
Bob Wilson 2018-05-25 21:26:03 +00:00
parent 39281931ec
commit fa84fc916c
2 changed files with 20 additions and 2 deletions
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9
clang/lib/Basic/Targets/PPC.h
View File

@ -335,6 +335,15 @@ public:
}
return false;
}
CallingConvCheckResult checkCallingConvention(CallingConv CC) const override {
switch (CC) {
case CC_Swift:
return CCCR_OK;
default:
return CCCR_Warning;
}
}
};
class LLVM_LIBRARY_VISIBILITY DarwinPPC32TargetInfo

13
clang/lib/CodeGen/TargetInfo.cpp
View File

@ -4287,7 +4287,7 @@ PPC32TargetCodeGenInfo::initDwarfEHRegSizeTable(CodeGen::CodeGenFunction &CGF,
namespace {
/// PPC64_SVR4_ABIInfo - The 64-bit PowerPC ELF (SVR4) ABI information.
class PPC64_SVR4_ABIInfo : public ABIInfo {
class PPC64_SVR4_ABIInfo : public SwiftABIInfo {
public:
enum ABIKind {
ELFv1 = 0,
@ -4331,7 +4331,7 @@ private:
public:
PPC64_SVR4_ABIInfo(CodeGen::CodeGenTypes &CGT, ABIKind Kind, bool HasQPX,
bool SoftFloatABI)
: ABIInfo(CGT), Kind(Kind), HasQPX(HasQPX),
: SwiftABIInfo(CGT), Kind(Kind), HasQPX(HasQPX),
IsSoftFloatABI(SoftFloatABI) {}
bool isPromotableTypeForABI(QualType Ty) const;
@ -4374,6 +4374,15 @@ public:
Address EmitVAArg(CodeGenFunction &CGF, Address VAListAddr,
QualType Ty) const override;
bool shouldPassIndirectlyForSwift(ArrayRef<llvm::Type*> scalars,
bool asReturnValue) const override {
return occupiesMoreThan(CGT, scalars, /*total*/ 4);
}
bool isSwiftErrorInRegister() const override {
return false;
}
};
class PPC64_SVR4_TargetCodeGenInfo : public TargetCodeGenInfo {