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Pass and return aggregate types directly to function calls. 

llvm-svn: 69668
This commit is contained in:
Sanjiv Gupta 2009-04-21 06:01:16 +00:00
parent c70dd56477
commit 4c5dfd3c45
2 changed files with 42 additions and 1 deletions
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2
clang/lib/Basic/Targets.cpp
View File

@ -1184,7 +1184,7 @@ namespace {
unsigned &NumRecords) const {}
virtual const char *getVAListDeclaration() const { return "";}
virtual const char *getClobbers() const {return "";}
virtual const char *getTargetPrefix() const {return "";}
virtual const char *getTargetPrefix() const {return "pic16";}
virtual void getGCCRegNames(const char * const *&Names,
unsigned &NumNames) const {}
virtual bool validateAsmConstraint(const char *&Name,

41
clang/lib/CodeGen/CGCall.cpp
View File

@ -1272,6 +1272,45 @@ llvm::Value *X86_64ABIInfo::EmitVAArg(llvm::Value *VAListAddr, QualType Ty,
return ResAddr;
}
// ABI Info for PIC16
class PIC16ABIInfo : public ABIInfo {
ABIArgInfo classifyReturnType(QualType RetTy,
ASTContext &Context) const;
ABIArgInfo classifyArgumentType(QualType RetTy,
ASTContext &Context) const;
virtual void computeInfo(CGFunctionInfo &FI, ASTContext &Context) const {
FI.getReturnInfo() = classifyReturnType(FI.getReturnType(), Context);
for (CGFunctionInfo::arg_iterator it = FI.arg_begin(), ie = FI.arg_end();
it != ie; ++it)
it->info = classifyArgumentType(it->type, Context);
}
virtual llvm::Value *EmitVAArg(llvm::Value *VAListAddr, QualType Ty,
CodeGenFunction &CGF) const;
};
ABIArgInfo PIC16ABIInfo::classifyReturnType(QualType RetTy,
ASTContext &Context) const {
if (RetTy->isVoidType()) {
return ABIArgInfo::getIgnore();
} else {
return ABIArgInfo::getDirect();
}
}
ABIArgInfo PIC16ABIInfo::classifyArgumentType(QualType Ty,
ASTContext &Context) const {
return ABIArgInfo::getDirect();
}
llvm::Value *PIC16ABIInfo::EmitVAArg(llvm::Value *VAListAddr, QualType Ty,
CodeGenFunction &CGF) const {
return 0;
}
class ARMABIInfo : public ABIInfo {
ABIArgInfo classifyReturnType(QualType RetTy,
ASTContext &Context) const;
@ -1400,6 +1439,8 @@ const ABIInfo &CodeGenTypes::getABIInfo() const {
} else if (strcmp(TargetPrefix, "arm") == 0) {
// FIXME: Support for OABI?
return *(TheABIInfo = new ARMABIInfo());
} else if (strcmp(TargetPrefix, "pic16") == 0) {
return *(TheABIInfo = new PIC16ABIInfo());
}
return *(TheABIInfo = new DefaultABIInfo);