Move hasFP() and few related hooks to TargetFrameInfo.

llvm-svn: 119740

1 files changed, 12 insertions, 0 deletions

diff --git a/llvm/lib/Target/CellSPU/SPUFrameInfo.cpp b/llvm/lib/Target/CellSPU/SPUFrameInfo.cpp
index 70ee8b83276..b1a09ad553f 100644
--- a/llvm/lib/Target/CellSPU/SPUFrameInfo.cpp
+++ b/llvm/lib/Target/CellSPU/SPUFrameInfo.cpp
@@ -39,6 +39,18 @@ SPUFrameInfo::SPUFrameInfo(const SPUSubtarget &sti)
 }
 
 
+//--------------------------------------------------------------------------
+// hasFP - Return true if the specified function actually has a dedicated frame
+// pointer register.  This is true if the function needs a frame pointer and has
+// a non-zero stack size.
+bool SPUFrameInfo::hasFP(const MachineFunction &MF) const {
+  const MachineFrameInfo *MFI = MF.getFrameInfo();
+
+  return MFI->getStackSize() &&
+    (DisableFramePointerElim(MF) || MFI->hasVarSizedObjects());
+}
+
+
 /// determineFrameLayout - Determine the size of the frame and maximum call
 /// frame size.
 void SPUFrameInfo::determineFrameLayout(MachineFunction &MF) const {