Move some more hooks to TargetFrameInfo
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119904 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86FrameInfo.cpp b/lib/Target/X86/X86FrameInfo.cpp
index 73f3c79..420568a 100644
--- a/lib/Target/X86/X86FrameInfo.cpp
+++ b/lib/Target/X86/X86FrameInfo.cpp
@@ -764,3 +764,38 @@
MachineLocation CSSrc(RI->getRARegister());
Moves.push_back(MachineMove(0, CSDst, CSSrc));
}
+
+int X86FrameInfo::getFrameIndexOffset(const MachineFunction &MF, int FI) const {
+ const X86RegisterInfo *RI =
+ static_cast<const X86RegisterInfo*>(MF.getTarget().getRegisterInfo());
+ const MachineFrameInfo *MFI = MF.getFrameInfo();
+ int Offset = MFI->getObjectOffset(FI) - getOffsetOfLocalArea();
+ uint64_t StackSize = MFI->getStackSize();
+
+ if (RI->needsStackRealignment(MF)) {
+ if (FI < 0) {
+ // Skip the saved EBP.
+ Offset += RI->getSlotSize();
+ } else {
+ unsigned Align = MFI->getObjectAlignment(FI);
+ assert((-(Offset + StackSize)) % Align == 0);
+ Align = 0;
+ return Offset + StackSize;
+ }
+ // FIXME: Support tail calls
+ } else {
+ if (!hasFP(MF))
+ return Offset + StackSize;
+
+ // Skip the saved EBP.
+ Offset += RI->getSlotSize();
+
+ // Skip the RETADDR move area
+ const X86MachineFunctionInfo *X86FI = MF.getInfo<X86MachineFunctionInfo>();
+ int TailCallReturnAddrDelta = X86FI->getTCReturnAddrDelta();
+ if (TailCallReturnAddrDelta < 0)
+ Offset -= TailCallReturnAddrDelta;
+ }
+
+ return Offset;
+}