1. Add load/store words from the stack
2. As part of this, added assembly format FEXT_RI16_SP_explicit_ins and
moved other lines for FEXT_RI16 formats to be in the right place in the code.
3. Added mayLoad and mayStore assignements for the load/store instructions added and for ones already there that did not have this assignment.
4. Another patch will deal with the problem of load/store byte/halfword to the stack. This is a particular Mips16 problem.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164811 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Mips/Mips16InstrInfo.cpp b/lib/Target/Mips/Mips16InstrInfo.cpp
index 9248032..127c5b8 100644
--- a/lib/Target/Mips/Mips16InstrInfo.cpp
+++ b/lib/Target/Mips/Mips16InstrInfo.cpp
@@ -84,7 +84,15 @@
unsigned SrcReg, bool isKill, int FI,
const TargetRegisterClass *RC,
const TargetRegisterInfo *TRI) const {
- assert(false && "Implement this function.");
+ DebugLoc DL;
+ if (I != MBB.end()) DL = I->getDebugLoc();
+ MachineMemOperand *MMO = GetMemOperand(MBB, FI, MachineMemOperand::MOStore);
+ unsigned Opc = 0;
+ if (Mips::CPU16RegsRegClass.hasSubClassEq(RC))
+ Opc = Mips::SwRxSpImmX16;
+ assert(Opc && "Register class not handled!");
+ BuildMI(MBB, I, DL, get(Opc)).addReg(SrcReg, getKillRegState(isKill))
+ .addFrameIndex(FI).addImm(0).addMemOperand(MMO);
}
void Mips16InstrInfo::
@@ -92,7 +100,16 @@
unsigned DestReg, int FI,
const TargetRegisterClass *RC,
const TargetRegisterInfo *TRI) const {
- assert(false && "Implement this function.");
+ DebugLoc DL;
+ if (I != MBB.end()) DL = I->getDebugLoc();
+ MachineMemOperand *MMO = GetMemOperand(MBB, FI, MachineMemOperand::MOLoad);
+ unsigned Opc = 0;
+
+ if (Mips::CPU16RegsRegClass.hasSubClassEq(RC))
+ Opc = Mips::LwRxSpImmX16;
+ assert(Opc && "Register class not handled!");
+ BuildMI(MBB, I, DL, get(Opc), DestReg).addFrameIndex(FI).addImm(0)
+ .addMemOperand(MMO);
}
bool Mips16InstrInfo::expandPostRAPseudo(MachineBasicBlock::iterator MI) const {