diff options
Diffstat (limited to 'llvm/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp | 9 |
1 files changed, 2 insertions, 7 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp b/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp index 31e7855..4f4fb9c 100644 --- a/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp @@ -111,15 +111,11 @@ SUnit *ScheduleDAGSDNodes::Clone(SUnit *Old) { static void CheckForPhysRegDependency(SDNode *Def, SDNode *User, unsigned Op, const TargetRegisterInfo *TRI, const TargetInstrInfo *TII, - const TargetLowering &TLI, MCRegister &PhysReg, int &Cost) { if (Op != 2 || User->getOpcode() != ISD::CopyToReg) return; Register Reg = cast<RegisterSDNode>(User->getOperand(1))->getReg(); - if (TLI.checkForPhysRegDependency(Def, User, Op, TRI, TII, PhysReg, Cost)) - return; - if (Reg.isVirtual()) return; @@ -136,7 +132,7 @@ static void CheckForPhysRegDependency(SDNode *Def, SDNode *User, unsigned Op, if (PhysReg) { const TargetRegisterClass *RC = TRI->getMinimalPhysRegClass(Reg, Def->getSimpleValueType(ResNo)); - Cost = RC->getCopyCost(); + Cost = RC->expensiveOrImpossibleToCopy() ? -1 : RC->getCopyCost(); } } @@ -490,8 +486,7 @@ void ScheduleDAGSDNodes::AddSchedEdges() { MCRegister PhysReg; int Cost = 1; // Determine if this is a physical register dependency. - const TargetLowering &TLI = DAG->getTargetLoweringInfo(); - CheckForPhysRegDependency(OpN, N, i, TRI, TII, TLI, PhysReg, Cost); + CheckForPhysRegDependency(OpN, N, i, TRI, TII, PhysReg, Cost); assert((!PhysReg || !isChain) && "Chain dependence via physreg data?"); // FIXME: See ScheduleDAGSDNodes::EmitCopyFromReg. For now, scheduler // emits a copy from the physical register to a virtual register unless |