Author: evancheng
Date: Sat Jan 12 12:57:32 2008
New Revision: 45913
URL: http://llvm.org/viewvc/llvm-project?rev=45913&view=rev
Log:
Add hasByValArgument() to test if a call instruction has byval argument(s).
Modified:
llvm/trunk/include/llvm/Instructions.h
llvm/trunk/lib/VMCore/Instructions.cpp
Modified: llvm/trunk/include/llvm/Instructions.h
URL:
http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Instructions.h?rev=45913&r1=45912&r2=45913&view=diff
==============================================================================
--- llvm/trunk/include/llvm/Instructions.h (original)
+++ llvm/trunk/include/llvm/Instructions.h Sat Jan 12 12:57:32 2008
@@ -944,6 +944,9 @@
/// @brief Determine if the call returns a structure.
bool isStructReturn() const;
+ /// @brief Determine if any call argument is an aggregate passed by value.
+ bool hasByValArgument() const;
+
/// getCalledFunction - Return the function being called by this instruction
/// if it is a direct call. If it is a call through a function pointer,
/// return null.
Modified: llvm/trunk/lib/VMCore/Instructions.cpp
URL:
http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/VMCore/Instructions.cpp?rev=45913&r1=45912&r2=45913&view=diff
==============================================================================
--- llvm/trunk/lib/VMCore/Instructions.cpp (original)
+++ llvm/trunk/lib/VMCore/Instructions.cpp Sat Jan 12 12:57:32 2008
@@ -404,6 +404,17 @@
return paramHasAttr(1, ParamAttr::StructRet);
}
+/// @brief Determine if any call argument is an aggregate passed by value.
+bool CallInst::hasByValArgument() const {
+ const Value *Callee = getCalledValue();
+ const PointerType *CalleeTy = cast<PointerType>(Callee->getType());
+ const FunctionType *FTy = cast<FunctionType>(CalleeTy->getElementType());
+ for (unsigned i = 1, e = FTy->getNumParams()+1; i != e; ++i)
+ if (paramHasAttr(i, ParamAttr::ByVal))
+ return true;
+ return false;
+}
+
void CallInst::setDoesNotThrow(bool doesNotThrow) {
const ParamAttrsList *PAL = getParamAttrs();
if (doesNotThrow)
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