#include "llvm/Target/TargetLowering.h"
#include "llvm/Target/TargetMachine.h"
+//===----------------------------------------------------------------------===//
+//
+// TBD:
+// FastLowerArguments: Handle simple cases.
+// PPCMaterializeGV: Handle TLS.
+// SelectCall: Handle function pointers.
+// SelectCall: Handle multi-register return values.
+// SelectCall: Optimize away nops for local calls.
+// processCallArgs: Handle bit-converted arguments.
+// finishCall: Handle multi-register return values.
+// PPCComputeAddress: Handle parameter references as FrameIndex's.
+// PPCEmitCmp: Handle immediate as operand 1.
+// SelectCall: Handle small byval arguments.
+// SelectIntrinsicCall: Implement.
+// SelectSelect: Implement.
+// Consider factoring isTypeLegal into the base class.
+// Implement switches and jump tables.
+//
+//===----------------------------------------------------------------------===//
using namespace llvm;
namespace {
return true;
}
-// Attempt to fast-select a compare instruction.
-bool PPCFastISel::SelectCmp(const Instruction *I) {
- const CmpInst *CI = cast<CmpInst>(I);
- Optional<PPC::Predicate> OptPPCPred = getComparePred(CI->getPredicate());
- if (!OptPPCPred)
- return false;
-
- unsigned CondReg = createResultReg(&PPC::CRRCRegClass);
-
- if (!PPCEmitCmp(CI->getOperand(0), CI->getOperand(1), CI->isUnsigned(),
- CondReg))
- return false;
-
- UpdateValueMap(I, CondReg);
- return true;
-}
-
// Attempt to fast-select an integer truncate instruction.
bool PPCFastISel::SelectTrunc(const Instruction *I) {
Value *Src = I->getOperand(0);
return PPCMaterializeGV(GV, VT);
else if (isa<ConstantInt>(C))
return PPCMaterializeInt(C, VT);
- // TBD: Global values.
return 0;
}
// Materialize the address created by an alloca into a register, and
-// return the register number (or zero if we failed to handle it). TBD.
+// return the register number (or zero if we failed to handle it).
unsigned PPCFastISel::TargetMaterializeAlloca(const AllocaInst *AI) {
- return AI && 0;
+ // Don't handle dynamic allocas.
+ if (!FuncInfo.StaticAllocaMap.count(AI)) return 0;
+
+ MVT VT;
+ if (!isLoadTypeLegal(AI->getType(), VT)) return 0;
+
+ DenseMap<const AllocaInst*, int>::iterator SI =
+ FuncInfo.StaticAllocaMap.find(AI);
+
+ if (SI != FuncInfo.StaticAllocaMap.end()) {
+ unsigned ResultReg = createResultReg(&PPC::G8RC_and_G8RC_NOX0RegClass);
+ BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DL, TII.get(PPC::ADDI8),
+ ResultReg).addFrameIndex(SI->second).addImm(0);
+ return ResultReg;
+ }
+
+ return 0;
}
// Fold loads into extends when possible.