Move hasFP() and few related hooks to TargetFrameInfo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119740 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Alpha/AlphaFrameInfo.cpp b/lib/Target/Alpha/AlphaFrameInfo.cpp
index 601e5db..0b25b48 100644
--- a/lib/Target/Alpha/AlphaFrameInfo.cpp
+++ b/lib/Target/Alpha/AlphaFrameInfo.cpp
@@ -34,17 +34,23 @@
return l - h * Alpha::IMM_MULT;
}
+// hasFP - Return true if the specified function should have a dedicated frame
+// pointer register. This is true if the function has variable sized allocas or
+// if frame pointer elimination is disabled.
+//
+bool AlphaFrameInfo::hasFP(const MachineFunction &MF) const {
+ const MachineFrameInfo *MFI = MF.getFrameInfo();
+ return MFI->hasVarSizedObjects();
+}
+
void AlphaFrameInfo::emitPrologue(MachineFunction &MF) const {
MachineBasicBlock &MBB = MF.front(); // Prolog goes in entry BB
MachineBasicBlock::iterator MBBI = MBB.begin();
MachineFrameInfo *MFI = MF.getFrameInfo();
- const AlphaRegisterInfo *RegInfo =
- static_cast<const AlphaRegisterInfo*>(MF.getTarget().getRegisterInfo());
- const AlphaInstrInfo &TII =
- *static_cast<const AlphaInstrInfo*>(MF.getTarget().getInstrInfo());
+ const TargetInstrInfo &TII = *MF.getTarget().getInstrInfo();
DebugLoc dl = (MBBI != MBB.end() ? MBBI->getDebugLoc() : DebugLoc());
- bool FP = RegInfo->hasFP(MF);
+ bool FP = hasFP(MF);
// Handle GOP offset
BuildMI(MBB, MBBI, dl, TII.get(Alpha::LDAHg), Alpha::R29)
@@ -99,17 +105,14 @@
MachineBasicBlock &MBB) const {
const MachineFrameInfo *MFI = MF.getFrameInfo();
MachineBasicBlock::iterator MBBI = prior(MBB.end());
- const AlphaRegisterInfo *RegInfo =
- static_cast<const AlphaRegisterInfo*>(MF.getTarget().getRegisterInfo());
- const AlphaInstrInfo &TII =
- *static_cast<const AlphaInstrInfo*>(MF.getTarget().getInstrInfo());
+ const TargetInstrInfo &TII = *MF.getTarget().getInstrInfo();
assert((MBBI->getOpcode() == Alpha::RETDAG ||
MBBI->getOpcode() == Alpha::RETDAGp)
&& "Can only insert epilog into returning blocks");
DebugLoc dl = MBBI->getDebugLoc();
- bool FP = RegInfo->hasFP(MF);
+ bool FP = hasFP(MF);
// Get the number of bytes allocated from the FrameInfo...
long NumBytes = MFI->getStackSize();