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path: root/llvm/lib/Target/RISCV/RISCVInstrInfo.cpp
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-rw-r--r--llvm/lib/Target/RISCV/RISCVInstrInfo.cpp33
1 files changed, 33 insertions, 0 deletions
diff --git a/llvm/lib/Target/RISCV/RISCVInstrInfo.cpp b/llvm/lib/Target/RISCV/RISCVInstrInfo.cpp
index ebb7174002d..63178bb668d 100644
--- a/llvm/lib/Target/RISCV/RISCVInstrInfo.cpp
+++ b/llvm/lib/Target/RISCV/RISCVInstrInfo.cpp
@@ -41,3 +41,36 @@ void RISCVInstrInfo::copyPhysReg(MachineBasicBlock &MBB,
.addReg(SrcReg, getKillRegState(KillSrc))
.addImm(0);
}
+
+void RISCVInstrInfo::storeRegToStackSlot(MachineBasicBlock &MBB,
+ MachineBasicBlock::iterator I,
+ unsigned SrcReg, bool IsKill, int FI,
+ const TargetRegisterClass *RC,
+ const TargetRegisterInfo *TRI) const {
+ DebugLoc DL;
+ if (I != MBB.end())
+ DL = I->getDebugLoc();
+
+ if (RC == &RISCV::GPRRegClass)
+ BuildMI(MBB, I, DL, get(RISCV::SW))
+ .addReg(SrcReg, getKillRegState(IsKill))
+ .addFrameIndex(FI)
+ .addImm(0);
+ else
+ llvm_unreachable("Can't store this register to stack slot");
+}
+
+void RISCVInstrInfo::loadRegFromStackSlot(MachineBasicBlock &MBB,
+ MachineBasicBlock::iterator I,
+ unsigned DstReg, int FI,
+ const TargetRegisterClass *RC,
+ const TargetRegisterInfo *TRI) const {
+ DebugLoc DL;
+ if (I != MBB.end())
+ DL = I->getDebugLoc();
+
+ if (RC == &RISCV::GPRRegClass)
+ BuildMI(MBB, I, DL, get(RISCV::LW), DstReg).addFrameIndex(FI).addImm(0);
+ else
+ llvm_unreachable("Can't load this register from stack slot");
+}
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