First step of huge frame-related refactoring: move emit{Prologue,Epilogue} out of TargetRegisterInfo to TargetFrameInfo, which is definitely much better suitable place
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119097 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Sparc/SparcFrameInfo.cpp b/lib/Target/Sparc/SparcFrameInfo.cpp
new file mode 100644
index 0000000..29600da
--- /dev/null
+++ b/lib/Target/Sparc/SparcFrameInfo.cpp
@@ -0,0 +1,80 @@
+//=======- SparcFrameInfo.cpp - Sparc Frame Information --------*- C++ -*-====//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file contains the Sparc implementation of TargetFrameInfo class.
+//
+//===----------------------------------------------------------------------===//
+
+#include "SparcFrameInfo.h"
+#include "SparcInstrInfo.h"
+#include "SparcMachineFunctionInfo.h"
+#include "llvm/Function.h"
+#include "llvm/CodeGen/MachineFrameInfo.h"
+#include "llvm/CodeGen/MachineFunction.h"
+#include "llvm/CodeGen/MachineInstrBuilder.h"
+#include "llvm/CodeGen/MachineModuleInfo.h"
+#include "llvm/CodeGen/MachineRegisterInfo.h"
+#include "llvm/Target/TargetData.h"
+#include "llvm/Target/TargetOptions.h"
+#include "llvm/Support/CommandLine.h"
+
+using namespace llvm;
+
+void SparcFrameInfo::emitPrologue(MachineFunction &MF) const {
+ MachineBasicBlock &MBB = MF.front();
+ MachineFrameInfo *MFI = MF.getFrameInfo();
+ const SparcInstrInfo &TII =
+ *static_cast<const SparcInstrInfo*>(MF.getTarget().getInstrInfo());
+ MachineBasicBlock::iterator MBBI = MBB.begin();
+ DebugLoc dl = MBBI != MBB.end() ? MBBI->getDebugLoc() : DebugLoc();
+
+ // Get the number of bytes to allocate from the FrameInfo
+ int NumBytes = (int) MFI->getStackSize();
+
+ // Emit the correct save instruction based on the number of bytes in
+ // the frame. Minimum stack frame size according to V8 ABI is:
+ // 16 words for register window spill
+ // 1 word for address of returned aggregate-value
+ // + 6 words for passing parameters on the stack
+ // ----------
+ // 23 words * 4 bytes per word = 92 bytes
+ NumBytes += 92;
+
+ // Round up to next doubleword boundary -- a double-word boundary
+ // is required by the ABI.
+ NumBytes = (NumBytes + 7) & ~7;
+ NumBytes = -NumBytes;
+
+ if (NumBytes >= -4096) {
+ BuildMI(MBB, MBBI, dl, TII.get(SP::SAVEri), SP::O6)
+ .addReg(SP::O6).addImm(NumBytes);
+ } else {
+ // Emit this the hard way. This clobbers G1 which we always know is
+ // available here.
+ unsigned OffHi = (unsigned)NumBytes >> 10U;
+ BuildMI(MBB, MBBI, dl, TII.get(SP::SETHIi), SP::G1).addImm(OffHi);
+ // Emit G1 = G1 + I6
+ BuildMI(MBB, MBBI, dl, TII.get(SP::ORri), SP::G1)
+ .addReg(SP::G1).addImm(NumBytes & ((1 << 10)-1));
+ BuildMI(MBB, MBBI, dl, TII.get(SP::SAVErr), SP::O6)
+ .addReg(SP::O6).addReg(SP::G1);
+ }
+}
+
+void SparcFrameInfo::emitEpilogue(MachineFunction &MF,
+ MachineBasicBlock &MBB) const {
+ MachineBasicBlock::iterator MBBI = prior(MBB.end());
+ const SparcInstrInfo &TII =
+ *static_cast<const SparcInstrInfo*>(MF.getTarget().getInstrInfo());
+ DebugLoc dl = MBBI->getDebugLoc();
+ assert(MBBI->getOpcode() == SP::RETL &&
+ "Can only put epilog before 'retl' instruction!");
+ BuildMI(MBB, MBBI, dl, TII.get(SP::RESTORErr), SP::G0).addReg(SP::G0)
+ .addReg(SP::G0);
+}
diff --git a/lib/Target/Sparc/SparcFrameInfo.h b/lib/Target/Sparc/SparcFrameInfo.h
new file mode 100644
index 0000000..4a6182a
--- /dev/null
+++ b/lib/Target/Sparc/SparcFrameInfo.h
@@ -0,0 +1,39 @@
+//===--- SparcFrameInfo.h - Define TargetFrameInfo for Sparc --*- C++ -*---===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+//
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef SPARC_FRAMEINFO_H
+#define SPARC_FRAMEINFO_H
+
+#include "Sparc.h"
+#include "SparcSubtarget.h"
+#include "llvm/Target/TargetFrameInfo.h"
+
+namespace llvm {
+ class SparcSubtarget;
+
+class SparcFrameInfo : public TargetFrameInfo {
+ const SparcSubtarget &STI;
+public:
+ explicit SparcFrameInfo(const SparcSubtarget &sti)
+ : TargetFrameInfo(TargetFrameInfo::StackGrowsDown, 8, 0), STI(sti) {
+ }
+
+ /// emitProlog/emitEpilog - These methods insert prolog and epilog code into
+ /// the function.
+ void emitPrologue(MachineFunction &MF) const;
+ void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
+};
+
+} // End llvm namespace
+
+#endif
diff --git a/lib/Target/Sparc/SparcRegisterInfo.cpp b/lib/Target/Sparc/SparcRegisterInfo.cpp
index c85db20..b66888c 100644
--- a/lib/Target/Sparc/SparcRegisterInfo.cpp
+++ b/lib/Target/Sparc/SparcRegisterInfo.cpp
@@ -112,55 +112,6 @@
void SparcRegisterInfo::
processFunctionBeforeFrameFinalized(MachineFunction &MF) const {}
-void SparcRegisterInfo::emitPrologue(MachineFunction &MF) const {
- MachineBasicBlock &MBB = MF.front();
- MachineFrameInfo *MFI = MF.getFrameInfo();
- MachineBasicBlock::iterator MBBI = MBB.begin();
- DebugLoc dl = MBBI != MBB.end() ? MBBI->getDebugLoc() : DebugLoc();
-
- // Get the number of bytes to allocate from the FrameInfo
- int NumBytes = (int) MFI->getStackSize();
-
- // Emit the correct save instruction based on the number of bytes in
- // the frame. Minimum stack frame size according to V8 ABI is:
- // 16 words for register window spill
- // 1 word for address of returned aggregate-value
- // + 6 words for passing parameters on the stack
- // ----------
- // 23 words * 4 bytes per word = 92 bytes
- NumBytes += 92;
-
- // Round up to next doubleword boundary -- a double-word boundary
- // is required by the ABI.
- NumBytes = (NumBytes + 7) & ~7;
- NumBytes = -NumBytes;
-
- if (NumBytes >= -4096) {
- BuildMI(MBB, MBBI, dl, TII.get(SP::SAVEri), SP::O6)
- .addReg(SP::O6).addImm(NumBytes);
- } else {
- // Emit this the hard way. This clobbers G1 which we always know is
- // available here.
- unsigned OffHi = (unsigned)NumBytes >> 10U;
- BuildMI(MBB, MBBI, dl, TII.get(SP::SETHIi), SP::G1).addImm(OffHi);
- // Emit G1 = G1 + I6
- BuildMI(MBB, MBBI, dl, TII.get(SP::ORri), SP::G1)
- .addReg(SP::G1).addImm(NumBytes & ((1 << 10)-1));
- BuildMI(MBB, MBBI, dl, TII.get(SP::SAVErr), SP::O6)
- .addReg(SP::O6).addReg(SP::G1);
- }
-}
-
-void SparcRegisterInfo::emitEpilogue(MachineFunction &MF,
- MachineBasicBlock &MBB) const {
- MachineBasicBlock::iterator MBBI = prior(MBB.end());
- DebugLoc dl = MBBI->getDebugLoc();
- assert(MBBI->getOpcode() == SP::RETL &&
- "Can only put epilog before 'retl' instruction!");
- BuildMI(MBB, MBBI, dl, TII.get(SP::RESTORErr), SP::G0).addReg(SP::G0)
- .addReg(SP::G0);
-}
-
unsigned SparcRegisterInfo::getRARegister() const {
return SP::I7;
}
diff --git a/lib/Target/Sparc/SparcRegisterInfo.h b/lib/Target/Sparc/SparcRegisterInfo.h
index 020ce56..9534b93 100644
--- a/lib/Target/Sparc/SparcRegisterInfo.h
+++ b/lib/Target/Sparc/SparcRegisterInfo.h
@@ -26,10 +26,10 @@
struct SparcRegisterInfo : public SparcGenRegisterInfo {
SparcSubtarget &Subtarget;
const TargetInstrInfo &TII;
-
+
SparcRegisterInfo(SparcSubtarget &st, const TargetInstrInfo &tii);
- /// Code Generation virtual methods...
+ /// Code Generation virtual methods...
const unsigned *getCalleeSavedRegs(const MachineFunction *MF = 0) const;
BitVector getReservedRegs(const MachineFunction &MF) const;
@@ -45,9 +45,6 @@
void processFunctionBeforeFrameFinalized(MachineFunction &MF) const;
- void emitPrologue(MachineFunction &MF) const;
- void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
-
// Debug information queries.
unsigned getRARegister() const;
unsigned getFrameRegister(const MachineFunction &MF) const;
diff --git a/lib/Target/Sparc/SparcTargetMachine.cpp b/lib/Target/Sparc/SparcTargetMachine.cpp
index b58d6ba..2949048 100644
--- a/lib/Target/Sparc/SparcTargetMachine.cpp
+++ b/lib/Target/Sparc/SparcTargetMachine.cpp
@@ -10,9 +10,9 @@
//
//===----------------------------------------------------------------------===//
+#include "Sparc.h"
#include "SparcMCAsmInfo.h"
#include "SparcTargetMachine.h"
-#include "Sparc.h"
#include "llvm/PassManager.h"
#include "llvm/Target/TargetRegistry.h"
using namespace llvm;
@@ -34,8 +34,8 @@
: LLVMTargetMachine(T, TT),
Subtarget(TT, FS, is64bit),
DataLayout(Subtarget.getDataLayout()),
- TLInfo(*this), TSInfo(*this), InstrInfo(Subtarget),
- FrameInfo(TargetFrameInfo::StackGrowsDown, 8, 0) {
+ TLInfo(*this), TSInfo(*this), InstrInfo(Subtarget),
+ FrameInfo(Subtarget) {
}
bool SparcTargetMachine::addInstSelector(PassManagerBase &PM,
diff --git a/lib/Target/Sparc/SparcTargetMachine.h b/lib/Target/Sparc/SparcTargetMachine.h
index 322c82a..9fd315f 100644
--- a/lib/Target/Sparc/SparcTargetMachine.h
+++ b/lib/Target/Sparc/SparcTargetMachine.h
@@ -14,13 +14,14 @@
#ifndef SPARCTARGETMACHINE_H
#define SPARCTARGETMACHINE_H
+#include "SparcInstrInfo.h"
+#include "SparcISelLowering.h"
+#include "SparcFrameInfo.h"
+#include "SparcSelectionDAGInfo.h"
+#include "SparcSubtarget.h"
#include "llvm/Target/TargetMachine.h"
#include "llvm/Target/TargetData.h"
#include "llvm/Target/TargetFrameInfo.h"
-#include "SparcInstrInfo.h"
-#include "SparcSubtarget.h"
-#include "SparcISelLowering.h"
-#include "SparcSelectionDAGInfo.h"
namespace llvm {
@@ -30,7 +31,7 @@
SparcTargetLowering TLInfo;
SparcSelectionDAGInfo TSInfo;
SparcInstrInfo InstrInfo;
- TargetFrameInfo FrameInfo;
+ SparcFrameInfo FrameInfo;
public:
SparcTargetMachine(const Target &T, const std::string &TT,
const std::string &FS, bool is64bit);