Implement MipsTargetLowering::CanLowerReturn.
Patch by Sasa Stankovic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165585 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Mips/MipsISelLowering.cpp b/lib/Target/Mips/MipsISelLowering.cpp
index 362317b..2236af9 100644
--- a/lib/Target/Mips/MipsISelLowering.cpp
+++ b/lib/Target/Mips/MipsISelLowering.cpp
@@ -2597,7 +2597,11 @@
llvm_unreachable("Cannot handle this ValVT.");
unsigned SizeInBytes = ValVT.getSizeInBits() >> 3;
- unsigned Offset = State.AllocateStack(SizeInBytes, OrigAlign);
+ unsigned Offset;
+ if (!ArgFlags.isSRet())
+ Offset = State.AllocateStack(SizeInBytes, OrigAlign);
+ else
+ Offset = State.AllocateStack(SizeInBytes, SizeInBytes);
if (!Reg)
State.addLoc(CCValAssign::getMem(ValNo, ValVT, Offset, LocVT, LocInfo));
@@ -3440,6 +3444,17 @@
// Return Value Calling Convention Implementation
//===----------------------------------------------------------------------===//
+bool
+MipsTargetLowering::CanLowerReturn(CallingConv::ID CallConv,
+ MachineFunction &MF, bool isVarArg,
+ const SmallVectorImpl<ISD::OutputArg> &Outs,
+ LLVMContext &Context) const {
+ SmallVector<CCValAssign, 16> RVLocs;
+ CCState CCInfo(CallConv, isVarArg, MF, getTargetMachine(),
+ RVLocs, Context);
+ return CCInfo.CheckReturn(Outs, RetCC_Mips);
+}
+
SDValue
MipsTargetLowering::LowerReturn(SDValue Chain,
CallingConv::ID CallConv, bool isVarArg,
diff --git a/lib/Target/Mips/MipsISelLowering.h b/lib/Target/Mips/MipsISelLowering.h
index b4cc16c..28d126b 100644
--- a/lib/Target/Mips/MipsISelLowering.h
+++ b/lib/Target/Mips/MipsISelLowering.h
@@ -216,6 +216,12 @@
LowerCall(TargetLowering::CallLoweringInfo &CLI,
SmallVectorImpl<SDValue> &InVals) const;
+ virtual bool
+ CanLowerReturn(CallingConv::ID CallConv, MachineFunction &MF,
+ bool isVarArg,
+ const SmallVectorImpl<ISD::OutputArg> &Outs,
+ LLVMContext &Context) const;
+
virtual SDValue
LowerReturn(SDValue Chain,
CallingConv::ID CallConv, bool isVarArg,