#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/SelectionDAGISel.h"
-#include "llvm/Instructions.h"
-#include "llvm/Intrinsics.h"
+#include "llvm/IR/Instructions.h"
+#include "llvm/IR/Intrinsics.h"
+#include "llvm/IR/Type.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/MathExtras.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Target/TargetMachine.h"
#include "llvm/Target/TargetOptions.h"
-#include "llvm/Type.h"
using namespace llvm;
STATISTIC(NumLoadMoved, "Number of loads moved below TokenFactor");
if (!Chain.getNumOperands())
return false;
+ // Since we are not checking for AA here, conservatively abort if the chain
+ // writes to memory. It's not safe to move the callee (a load) across a store.
+ if (isa<MemSDNode>(Chain.getNode()) &&
+ cast<MemSDNode>(Chain.getNode())->writeMem())
+ return false;
if (Chain.getOperand(0).getNode() == Callee.getNode())
return true;
if (Chain.getOperand(0).getOpcode() == ISD::TokenFactor &&
if (OptLevel != CodeGenOpt::None &&
(N->getOpcode() == X86ISD::CALL ||
(N->getOpcode() == X86ISD::TC_RETURN &&
- // Only does this if load can be foled into TC_RETURN.
+ // Only does this if load can be folded into TC_RETURN.
(Subtarget->is64Bit() ||
getTargetMachine().getRelocationModel() != Reloc::PIC_)))) {
/// Also try moving call address load from outside callseq_start to just
AM.IndexReg = ShVal;
return false;
}
- break;
}
+ break;
case ISD::SRL: {
// Scale must not be used already.