[llvm-uc] [PATCH 14/16] uc32: add has_FP
- From: Jia Liu <proljc@xxxxxxxxx>
- To: llvm-uc@xxxxxxxxxxxxx
- Date: Sat, 5 Jan 2013 10:52:03 +0800
Signed-off-by: Jia Liu <proljc@xxxxxxxxx>
---
lib/Target/UniCore/UniCoreRegisterInfo.cpp | 23 ++++++++++++++++++++---
lib/Target/UniCore/UniCoreRegisterInfo.h | 1 +
2 files changed, 21 insertions(+), 3 deletions(-)
diff --git a/lib/Target/UniCore/UniCoreRegisterInfo.cpp
b/lib/Target/UniCore/UniCoreRegisterInfo.cpp
index d50c6a9..9cd0577 100644
--- a/lib/Target/UniCore/UniCoreRegisterInfo.cpp
+++ b/lib/Target/UniCore/UniCoreRegisterInfo.cpp
@@ -16,6 +16,7 @@
#include "UniCoreRegisterInfo.h"
#include "UniCore.h"
+#include "UniCoreMachineFunctionInfo.h"
#include "UniCoreTargetMachine.h"
#include "llvm/Function.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
@@ -38,25 +39,41 @@
UniCoreRegisterInfo::UniCoreRegisterInfo(UniCoreTargetMachine &tm,
const uint16_t *
UniCoreRegisterInfo::getCalleeSavedRegs(const MachineFunction *MF) const {
- return CSR_SaveList;
+ const TargetFrameLowering *TFI = MF->getTarget().getFrameLowering();
+
+ return (TFI->hasFP(*MF) ? CSR_FP_SaveList : CSR_SaveList);
}
BitVector
UniCoreRegisterInfo::getReservedRegs(const MachineFunction &MF) const {
BitVector Reserved(getNumRegs());
+ const TargetFrameLowering *TFI = MF.getTarget().getFrameLowering();
Reserved.set(UniCore::R16);
Reserved.set(UniCore::SP);
Reserved.set(UniCore::PC);
+ // Mark frame pointer as reserved if needed.
+ if (TFI->hasFP(MF))
+ Reserved.set(UniCore::FP);
+
return Reserved;
}
+const TargetRegisterClass*
+UniCoreRegisterInfo::getPointerRegClass(unsigned Kind) const {
+ assert(0 && "Unimplemented");
+}
+
void
UniCoreRegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II,
- int SPAdj, RegScavenger *RS) const {}
+ int SPAdj, RegScavenger *RS) const {
+ assert(0 && "Unimplemented");
+}
unsigned
UniCoreRegisterInfo::getFrameRegister(const MachineFunction &MF) const {
- return UniCore::SP;
+ const TargetFrameLowering *TFI = MF.getTarget().getFrameLowering();
+
+ return TFI->hasFP(MF) ? UniCore::FP : UniCore::SP;
}
diff --git a/lib/Target/UniCore/UniCoreRegisterInfo.h
b/lib/Target/UniCore/UniCoreRegisterInfo.h
index 2a54507..f6744ac 100644
--- a/lib/Target/UniCore/UniCoreRegisterInfo.h
+++ b/lib/Target/UniCore/UniCoreRegisterInfo.h
@@ -34,6 +34,7 @@ public:
const uint16_t *getCalleeSavedRegs(const MachineFunction *MF = 0) const;
BitVector getReservedRegs(const MachineFunction &MF) const;
+ const TargetRegisterClass* getPointerRegClass(unsigned Kind = 0) const;
void eliminateFrameIndex(MachineBasicBlock::iterator II,
int SPAdj, RegScavenger *RS = NULL) const;
--
1.7.10.2 (Apple Git-33)
Other related posts:
- » [llvm-uc] [PATCH 14/16] uc32: add has_FP - Jia Liu
