Implement isLoadFromStackSlotPostFE and isStoreToStackSlotPostFE for ARM.

They improve the verbose assembly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137069 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/ARM/ARMBaseInstrInfo.cpp b/lib/Target/ARM/ARMBaseInstrInfo.cpp
index a79579e461e8c731feca20847dfe8ff67494cf50..0987e56852d268fe90a7e1b8c50cdf1e405e2567 100644 (file)
--- a/lib/Target/ARM/ARMBaseInstrInfo.cpp
+++ b/lib/Target/ARM/ARMBaseInstrInfo.cpp
@@ -810,6 +810,12 @@ ARMBaseInstrInfo::isStoreToStackSlot(const MachineInstr *MI,
   return 0;
 }
 
+unsigned ARMBaseInstrInfo::isStoreToStackSlotPostFE(const MachineInstr *MI,
+                                                    int &FrameIndex) const {
+  const MachineMemOperand *Dummy;
+  return MI->getDesc().mayStore() && hasStoreToStackSlot(MI, Dummy, FrameIndex);
+}
+
 void ARMBaseInstrInfo::
 loadRegFromStackSlot(MachineBasicBlock &MBB, MachineBasicBlock::iterator I,
                      unsigned DestReg, int FI,
@@ -945,6 +951,12 @@ ARMBaseInstrInfo::isLoadFromStackSlot(const MachineInstr *MI,
   return 0;
 }
 
+unsigned ARMBaseInstrInfo::isLoadFromStackSlotPostFE(const MachineInstr *MI,
+                                             int &FrameIndex) const {
+  const MachineMemOperand *Dummy;
+  return MI->getDesc().mayLoad() && hasLoadFromStackSlot(MI, Dummy, FrameIndex);
+}
+
 MachineInstr*
 ARMBaseInstrInfo::emitFrameIndexDebugValue(MachineFunction &MF,
                                            int FrameIx, uint64_t Offset,

diff --git a/lib/Target/ARM/ARMBaseInstrInfo.h b/lib/Target/ARM/ARMBaseInstrInfo.h
index 9f002b047f59b3783fc23922ca81734a5ee4debf..2d6664767d2e3b4343f851b2f4906a056d4ea020 100644 (file)
--- a/lib/Target/ARM/ARMBaseInstrInfo.h
+++ b/lib/Target/ARM/ARMBaseInstrInfo.h
@@ -101,6 +101,10 @@ public:
                                        int &FrameIndex) const;
   virtual unsigned isStoreToStackSlot(const MachineInstr *MI,
                                       int &FrameIndex) const;
+  virtual unsigned isLoadFromStackSlotPostFE(const MachineInstr *MI,
+                                             int &FrameIndex) const;
+  virtual unsigned isStoreToStackSlotPostFE(const MachineInstr *MI,
+                                            int &FrameIndex) const;
 
   virtual void copyPhysReg(MachineBasicBlock &MBB,
                            MachineBasicBlock::iterator I, DebugLoc DL,