[CodeGen] Replace CCState's getNextStackOffset with getStackSize (NFC)

The term "next stack offset" is misleading because the next argument is
not necessarily allocated at this offset due to alignment constrains.
It also does not make much sense when allocating arguments at negative
offsets (introduced in a follow-up patch), because the returned offset
would be past the end of the next argument.

Reviewed By: arsenm

Differential Revision: https://reviews.llvm.org/D149566

1 files changed, 6 insertions, 6 deletions

diff --git a/llvm/lib/Target/Sparc/SparcISelLowering.cpp b/llvm/lib/Target/Sparc/SparcISelLowering.cpp
index a67a8e8d9dd3..6e6041b782fb 100644
--- a/llvm/lib/Target/Sparc/SparcISelLowering.cpp
+++ b/llvm/lib/Target/Sparc/SparcISelLowering.cpp
@@ -584,7 +584,7 @@ SDValue SparcTargetLowering::LowerFormalArguments_32(
     };
     unsigned NumAllocated = CCInfo.getFirstUnallocated(ArgRegs);
     const MCPhysReg *CurArgReg = ArgRegs+NumAllocated, *ArgRegEnd = ArgRegs+6;
-    unsigned ArgOffset = CCInfo.getNextStackOffset();
+    unsigned ArgOffset = CCInfo.getStackSize();
     if (NumAllocated == 6)
       ArgOffset += StackOffset;
     else {
@@ -703,7 +703,7 @@ SDValue SparcTargetLowering::LowerFormalArguments_64(
   //
   // The va_start intrinsic needs to know the offset to the first variable
   // argument.
-  unsigned ArgOffset = CCInfo.getNextStackOffset();
+  unsigned ArgOffset = CCInfo.getStackSize();
   SparcMachineFunctionInfo *FuncInfo = MF.getInfo<SparcMachineFunctionInfo>();
   // Skip the 128 bytes of register save area.
   FuncInfo->setVarArgsFrameOffset(ArgOffset + ArgArea +
@@ -773,8 +773,8 @@ bool SparcTargetLowering::IsEligibleForTailCallOptimization(
   // Do not tail call opt if the stack is used to pass parameters.
   // 64-bit targets have a slightly higher limit since the ABI requires
   // to allocate some space even when all the parameters fit inside registers.
-  unsigned StackOffsetLimit = Subtarget->is64Bit() ? 48 : 0;
-  if (CCInfo.getNextStackOffset() > StackOffsetLimit)
+  unsigned StackSizeLimit = Subtarget->is64Bit() ? 48 : 0;
+  if (CCInfo.getStackSize() > StackSizeLimit)
     return false;
 
   // Do not tail call opt if either the callee or caller returns
@@ -816,7 +816,7 @@ SparcTargetLowering::LowerCall_32(TargetLowering::CallLoweringInfo &CLI,
                                  CCInfo, CLI, DAG.getMachineFunction());
 
   // Get the size of the outgoing arguments stack space requirement.
-  unsigned ArgsSize = CCInfo.getNextStackOffset();
+  unsigned ArgsSize = CCInfo.getStackSize();
 
   // Keep stack frames 8-byte aligned.
   ArgsSize = (ArgsSize+7) & ~7;
@@ -1204,7 +1204,7 @@ SparcTargetLowering::LowerCall_64(TargetLowering::CallLoweringInfo &CLI,
   // Called functions expect 6 argument words to exist in the stack frame, used
   // or not.
   unsigned StackReserved = 6 * 8u;
-  unsigned ArgsSize = std::max(StackReserved, CCInfo.getNextStackOffset());
+  unsigned ArgsSize = std::max(StackReserved, CCInfo.getStackSize());
 
   // Keep stack frames 16-byte aligned.
   ArgsSize = alignTo(ArgsSize, 16);