#define DEBUG_TYPE "function-lowering-info"
#include "llvm/CodeGen/FunctionLoweringInfo.h"
-#include "llvm/DerivedTypes.h"
-#include "llvm/Function.h"
-#include "llvm/Instructions.h"
-#include "llvm/IntrinsicInst.h"
-#include "llvm/LLVMContext.h"
-#include "llvm/Module.h"
-#include "llvm/Analysis/DebugInfo.h"
+#include "llvm/ADT/PostOrderIterator.h"
#include "llvm/CodeGen/Analysis.h"
-#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
+#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineModuleInfo.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
-#include "llvm/Target/TargetRegisterInfo.h"
-#include "llvm/Target/TargetData.h"
-#include "llvm/Target/TargetInstrInfo.h"
-#include "llvm/Target/TargetLowering.h"
-#include "llvm/Target/TargetOptions.h"
+#include "llvm/DebugInfo.h"
+#include "llvm/IR/DataLayout.h"
+#include "llvm/IR/DerivedTypes.h"
+#include "llvm/IR/Function.h"
+#include "llvm/IR/Instructions.h"
+#include "llvm/IR/IntrinsicInst.h"
+#include "llvm/IR/LLVMContext.h"
+#include "llvm/IR/Module.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/MathExtras.h"
+#include "llvm/Target/TargetInstrInfo.h"
+#include "llvm/Target/TargetLowering.h"
+#include "llvm/Target/TargetOptions.h"
+#include "llvm/Target/TargetRegisterInfo.h"
#include <algorithm>
using namespace llvm;
return false;
}
-FunctionLoweringInfo::FunctionLoweringInfo(const TargetLowering &tli)
- : TLI(tli) {
-}
-
void FunctionLoweringInfo::set(const Function &fn, MachineFunction &mf) {
+ const TargetLowering *TLI = TM.getTargetLowering();
+
Fn = &fn;
MF = &mf;
RegInfo = &MF->getRegInfo();
// Check whether the function can return without sret-demotion.
SmallVector<ISD::OutputArg, 4> Outs;
- GetReturnInfo(Fn->getReturnType(),
- Fn->getAttributes().getRetAttributes(), Outs, TLI);
- CanLowerReturn = TLI.CanLowerReturn(Fn->getCallingConv(), *MF,
- Fn->isVarArg(),
- Outs, Fn->getContext());
+ GetReturnInfo(Fn->getReturnType(), Fn->getAttributes(), Outs, *TLI);
+ CanLowerReturn = TLI->CanLowerReturn(Fn->getCallingConv(), *MF,
+ Fn->isVarArg(),
+ Outs, Fn->getContext());
// Initialize the mapping of values to registers. This is only set up for
// instruction values that are used outside of the block that defines
if (const AllocaInst *AI = dyn_cast<AllocaInst>(I))
if (const ConstantInt *CUI = dyn_cast<ConstantInt>(AI->getArraySize())) {
Type *Ty = AI->getAllocatedType();
- uint64_t TySize = TLI.getTargetData()->getTypeAllocSize(Ty);
+ uint64_t TySize = TLI->getDataLayout()->getTypeAllocSize(Ty);
unsigned Align =
- std::max((unsigned)TLI.getTargetData()->getPrefTypeAlignment(Ty),
+ std::max((unsigned)TLI->getDataLayout()->getPrefTypeAlignment(Ty),
AI->getAlignment());
TySize *= CUI->getZExtValue(); // Get total allocated size.
(TySize >= 8 && isa<ArrayType>(Ty) &&
cast<ArrayType>(Ty)->getElementType()->isIntegerTy(8)));
StaticAllocaMap[AI] =
- MF->getFrameInfo()->CreateStackObject(TySize, Align, false, MayNeedSP);
+ MF->getFrameInfo()->CreateStackObject(TySize, Align, false,
+ MayNeedSP, AI);
}
for (; BB != EB; ++BB)
- for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); I != E; ++I) {
+ for (BasicBlock::const_iterator I = BB->begin(), E = BB->end();
+ I != E; ++I) {
// Mark values used outside their block as exported, by allocating
// a virtual register for them.
if (isUsedOutsideOfDefiningBlock(I))
// in a predictable order.
if (const DbgDeclareInst *DI = dyn_cast<DbgDeclareInst>(I)) {
MachineModuleInfo &MMI = MF->getMMI();
+ DIVariable DIVar(DI->getVariable());
+ assert((!DIVar || DIVar.isVariable()) &&
+ "Variable in DbgDeclareInst should be either null or a DIVariable.");
if (MMI.hasDebugInfo() &&
- DIVariable(DI->getVariable()).Verify() &&
+ DIVar &&
!DI->getDebugLoc().isUnknown()) {
// Don't handle byval struct arguments or VLAs, for example.
// Non-byval arguments are handled here (they refer to the stack
assert(PHIReg && "PHI node does not have an assigned virtual register!");
SmallVector<EVT, 4> ValueVTs;
- ComputeValueVTs(TLI, PN->getType(), ValueVTs);
+ ComputeValueVTs(*TLI, PN->getType(), ValueVTs);
for (unsigned vti = 0, vte = ValueVTs.size(); vti != vte; ++vti) {
EVT VT = ValueVTs[vti];
- unsigned NumRegisters = TLI.getNumRegisters(Fn->getContext(), VT);
+ unsigned NumRegisters = TLI->getNumRegisters(Fn->getContext(), VT);
const TargetInstrInfo *TII = MF->getTarget().getInstrInfo();
for (unsigned i = 0; i != NumRegisters; ++i)
BuildMI(MBB, DL, TII->get(TargetOpcode::PHI), PHIReg + i);
}
/// CreateReg - Allocate a single virtual register for the given type.
-unsigned FunctionLoweringInfo::CreateReg(EVT VT) {
- return RegInfo->createVirtualRegister(TLI.getRegClassFor(VT));
+unsigned FunctionLoweringInfo::CreateReg(MVT VT) {
+ return RegInfo->
+ createVirtualRegister(TM.getTargetLowering()->getRegClassFor(VT));
}
/// CreateRegs - Allocate the appropriate number of virtual registers of
/// will assign registers for each member or element.
///
unsigned FunctionLoweringInfo::CreateRegs(Type *Ty) {
+ const TargetLowering *TLI = TM.getTargetLowering();
+
SmallVector<EVT, 4> ValueVTs;
- ComputeValueVTs(TLI, Ty, ValueVTs);
+ ComputeValueVTs(*TLI, Ty, ValueVTs);
unsigned FirstReg = 0;
for (unsigned Value = 0, e = ValueVTs.size(); Value != e; ++Value) {
EVT ValueVT = ValueVTs[Value];
- EVT RegisterVT = TLI.getRegisterType(Ty->getContext(), ValueVT);
+ MVT RegisterVT = TLI->getRegisterType(Ty->getContext(), ValueVT);
- unsigned NumRegs = TLI.getNumRegisters(Ty->getContext(), ValueVT);
+ unsigned NumRegs = TLI->getNumRegisters(Ty->getContext(), ValueVT);
for (unsigned i = 0; i != NumRegs; ++i) {
unsigned R = CreateReg(RegisterVT);
if (!FirstReg) FirstReg = R;
if (!Ty->isIntegerTy() || Ty->isVectorTy())
return;
+ const TargetLowering *TLI = TM.getTargetLowering();
+
SmallVector<EVT, 1> ValueVTs;
- ComputeValueVTs(TLI, Ty, ValueVTs);
+ ComputeValueVTs(*TLI, Ty, ValueVTs);
assert(ValueVTs.size() == 1 &&
"PHIs with non-vector integer types should have a single VT.");
EVT IntVT = ValueVTs[0];
- if (TLI.getNumRegisters(PN->getContext(), IntVT) != 1)
+ if (TLI->getNumRegisters(PN->getContext(), IntVT) != 1)
return;
- IntVT = TLI.getTypeToTransformTo(PN->getContext(), IntVT);
+ IntVT = TLI->getTypeToTransformTo(PN->getContext(), IntVT);
unsigned BitWidth = IntVT.getSizeInBits();
unsigned DestReg = ValueMap[PN];
/// argument. This overrides previous frame index entry for this argument,
/// if any.
void FunctionLoweringInfo::setArgumentFrameIndex(const Argument *A,
- int FI) {
+ int FI) {
ByValArgFrameIndexMap[A] = FI;
}
ByValArgFrameIndexMap.find(A);
if (I != ByValArgFrameIndexMap.end())
return I->second;
- DEBUG(dbgs() << "Argument does not have assigned frame index!");
+ DEBUG(dbgs() << "Argument does not have assigned frame index!\n");
return 0;
}
+/// ComputeUsesVAFloatArgument - Determine if any floating-point values are
+/// being passed to this variadic function, and set the MachineModuleInfo's
+/// usesVAFloatArgument flag if so. This flag is used to emit an undefined
+/// reference to _fltused on Windows, which will link in MSVCRT's
+/// floating-point support.
+void llvm::ComputeUsesVAFloatArgument(const CallInst &I,
+ MachineModuleInfo *MMI)
+{
+ FunctionType *FT = cast<FunctionType>(
+ I.getCalledValue()->getType()->getContainedType(0));
+ if (FT->isVarArg() && !MMI->usesVAFloatArgument()) {
+ for (unsigned i = 0, e = I.getNumArgOperands(); i != e; ++i) {
+ Type* T = I.getArgOperand(i)->getType();
+ for (po_iterator<Type*> i = po_begin(T), e = po_end(T);
+ i != e; ++i) {
+ if (i->isFloatingPointTy()) {
+ MMI->setUsesVAFloatArgument(true);
+ return;
+ }
+ }
+ }
+ }
+}
+
/// AddCatchInfo - Extract the personality and type infos from an eh.selector
/// call, and add them to the specified machine basic block.
void llvm::AddCatchInfo(const CallInst &I, MachineModuleInfo *MMI,
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