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Remove MallocInst from LLVM Instructions.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84299 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Victor Hernandez
2009-10-17 01:18:07 +00:00
parent 3bdd8de280
commit a276c603b8
25 changed files with 73 additions and 677 deletions
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42
lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
View File

@@ -5485,48 +5485,6 @@ void SelectionDAGLowering::visitInlineAsm(CallSite CS) {
DAG.setRoot(Chain);
}
void SelectionDAGLowering::visitMalloc(MallocInst &I) {
SDValue Src = getValue(I.getOperand(0));
// Scale up by the type size in the original i32 type width. Various
// mid-level optimizers may make assumptions about demanded bits etc from the
// i32-ness of the optimizer: we do not want to promote to i64 and then
// multiply on 64-bit targets.
// FIXME: Malloc inst should go away: PR715.
uint64_t ElementSize = TD->getTypeAllocSize(I.getType()->getElementType());
if (ElementSize != 1) {
// Src is always 32-bits, make sure the constant fits.
assert(Src.getValueType() == MVT::i32);
ElementSize = (uint32_t)ElementSize;
Src = DAG.getNode(ISD::MUL, getCurDebugLoc(), Src.getValueType(),
Src, DAG.getConstant(ElementSize, Src.getValueType()));
}
EVT IntPtr = TLI.getPointerTy();
Src = DAG.getZExtOrTrunc(Src, getCurDebugLoc(), IntPtr);
TargetLowering::ArgListTy Args;
TargetLowering::ArgListEntry Entry;
Entry.Node = Src;
Entry.Ty = TLI.getTargetData()->getIntPtrType(*DAG.getContext());
Args.push_back(Entry);
bool isTailCall = PerformTailCallOpt &&
isInTailCallPosition(&I, Attribute::None, TLI);
std::pair<SDValue,SDValue> Result =
TLI.LowerCallTo(getRoot(), I.getType(), false, false, false, false,
0, CallingConv::C, isTailCall,
/*isReturnValueUsed=*/true,
DAG.getExternalSymbol("malloc", IntPtr),
Args, DAG, getCurDebugLoc());
if (Result.first.getNode())
setValue(&I, Result.first); // Pointers always fit in registers
if (Result.second.getNode())
DAG.setRoot(Result.second);
}
void SelectionDAGLowering::visitFree(FreeInst &I) {
TargetLowering::ArgListTy Args;
TargetLowering::ArgListEntry Entry;

2
lib/CodeGen/SelectionDAG/SelectionDAGBuild.h
View File

@@ -60,7 +60,6 @@ class MachineFunction;
class MachineInstr;
class MachineModuleInfo;
class MachineRegisterInfo;
class MallocInst;
class PHINode;
class PtrToIntInst;
class ReturnInst;
@@ -529,7 +528,6 @@ private:
void visitGetElementPtr(User &I);
void visitSelect(User &I);
void visitMalloc(MallocInst &I);
void visitFree(FreeInst &I);
void visitAlloca(AllocaInst &I);
void visitLoad(LoadInst &I);