Fix line endings after r256155. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256211 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 198 insertions, 198 deletions

diff --git a/lib/Target/X86/X86ExpandPseudo.cpp b/lib/Target/X86/X86ExpandPseudo.cpp
index 3c296df617e..a09d0651937 100644
--- a/lib/Target/X86/X86ExpandPseudo.cpp
+++ b/lib/Target/X86/X86ExpandPseudo.cpp
@@ -1,198 +1,198 @@
-//===------- X86ExpandPseudo.cpp - Expand pseudo instructions -------------===//

-//

-//                     The LLVM Compiler Infrastructure

-//

-// This file is distributed under the University of Illinois Open Source

-// License. See LICENSE.TXT for details.

-//

-//===----------------------------------------------------------------------===//

-//

-// This file contains a pass that expands pseudo instructions into target

-// instructions to allow proper scheduling, if-conversion, other late

-// optimizations, or simply the encoding of the instructions.

-//

-//===----------------------------------------------------------------------===//

-

-#include "X86.h"

-#include "X86FrameLowering.h"

-#include "X86InstrBuilder.h"

-#include "X86InstrInfo.h"

-#include "X86MachineFunctionInfo.h"

-#include "X86Subtarget.h"

-#include "llvm/Analysis/EHPersonalities.h"

-#include "llvm/CodeGen/MachineFunctionPass.h"

-#include "llvm/CodeGen/MachineInstrBuilder.h"

-#include "llvm/CodeGen/Passes.h" // For IDs of passes that are preserved.

-#include "llvm/IR/GlobalValue.h"

-using namespace llvm;

-

-#define DEBUG_TYPE "x86-pseudo"

-

-namespace {

-class X86ExpandPseudo : public MachineFunctionPass {

-public:

-  static char ID;

-  X86ExpandPseudo() : MachineFunctionPass(ID) {}

-

-  void getAnalysisUsage(AnalysisUsage &AU) const override {

-    AU.setPreservesCFG();

-    AU.addPreservedID(MachineLoopInfoID);

-    AU.addPreservedID(MachineDominatorsID);

-    MachineFunctionPass::getAnalysisUsage(AU);

-  }

-

-  const X86Subtarget *STI;

-  const X86InstrInfo *TII;

-  const X86RegisterInfo *TRI;

-  const X86FrameLowering *X86FL;

-

-  bool runOnMachineFunction(MachineFunction &Fn) override;

-

-  const char *getPassName() const override {

-    return "X86 pseudo instruction expansion pass";

-  }

-

-private:

-  bool ExpandMI(MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI);

-  bool ExpandMBB(MachineBasicBlock &MBB);

-};

-char X86ExpandPseudo::ID = 0;

-} // End anonymous namespace.

-

-/// If \p MBBI is a pseudo instruction, this method expands

-/// it to the corresponding (sequence of) actual instruction(s).

-/// \returns true if \p MBBI has been expanded.

-bool X86ExpandPseudo::ExpandMI(MachineBasicBlock &MBB,

-                               MachineBasicBlock::iterator MBBI) {

-  MachineInstr &MI = *MBBI;

-  unsigned Opcode = MI.getOpcode();

-  DebugLoc DL = MBBI->getDebugLoc();

-  switch (Opcode) {

-  default:

-    return false;

-  case X86::TCRETURNdi:

-  case X86::TCRETURNri:

-  case X86::TCRETURNmi:

-  case X86::TCRETURNdi64:

-  case X86::TCRETURNri64:

-  case X86::TCRETURNmi64: {

-    bool isMem = Opcode == X86::TCRETURNmi || Opcode == X86::TCRETURNmi64;

-    MachineOperand &JumpTarget = MBBI->getOperand(0);

-    MachineOperand &StackAdjust = MBBI->getOperand(isMem ? 5 : 1);

-    assert(StackAdjust.isImm() && "Expecting immediate value.");

-

-    // Adjust stack pointer.

-    int StackAdj = StackAdjust.getImm();

-

-    if (StackAdj) {

-      // Check for possible merge with preceding ADD instruction.

-      StackAdj += X86FL->mergeSPUpdates(MBB, MBBI, true);

-      X86FL->emitSPUpdate(MBB, MBBI, StackAdj, /*InEpilogue=*/true);

-    }

-

-    // Jump to label or value in register.

-    bool IsWin64 = STI->isTargetWin64();

-    if (Opcode == X86::TCRETURNdi || Opcode == X86::TCRETURNdi64) {

-      unsigned Op = (Opcode == X86::TCRETURNdi)

-                        ? X86::TAILJMPd

-                        : (IsWin64 ? X86::TAILJMPd64_REX : X86::TAILJMPd64);

-      MachineInstrBuilder MIB = BuildMI(MBB, MBBI, DL, TII->get(Op));

-      if (JumpTarget.isGlobal())

-        MIB.addGlobalAddress(JumpTarget.getGlobal(), JumpTarget.getOffset(),

-                             JumpTarget.getTargetFlags());

-      else {

-        assert(JumpTarget.isSymbol());

-        MIB.addExternalSymbol(JumpTarget.getSymbolName(),

-                              JumpTarget.getTargetFlags());

-      }

-    } else if (Opcode == X86::TCRETURNmi || Opcode == X86::TCRETURNmi64) {

-      unsigned Op = (Opcode == X86::TCRETURNmi)

-                        ? X86::TAILJMPm

-                        : (IsWin64 ? X86::TAILJMPm64_REX : X86::TAILJMPm64);

-      MachineInstrBuilder MIB = BuildMI(MBB, MBBI, DL, TII->get(Op));

-      for (unsigned i = 0; i != 5; ++i)

-        MIB.addOperand(MBBI->getOperand(i));

-    } else if (Opcode == X86::TCRETURNri64) {

-      BuildMI(MBB, MBBI, DL,

-              TII->get(IsWin64 ? X86::TAILJMPr64_REX : X86::TAILJMPr64))

-          .addReg(JumpTarget.getReg(), RegState::Kill);

-    } else {

-      BuildMI(MBB, MBBI, DL, TII->get(X86::TAILJMPr))

-          .addReg(JumpTarget.getReg(), RegState::Kill);

-    }

-

-    MachineInstr *NewMI = std::prev(MBBI);

-    NewMI->copyImplicitOps(*MBBI->getParent()->getParent(), MBBI);

-

-    // Delete the pseudo instruction TCRETURN.

-    MBB.erase(MBBI);

-

-    return true;

-  }

-  case X86::EH_RETURN:

-  case X86::EH_RETURN64: {

-    MachineOperand &DestAddr = MBBI->getOperand(0);

-    assert(DestAddr.isReg() && "Offset should be in register!");

-    const bool Uses64BitFramePtr =

-        STI->isTarget64BitLP64() || STI->isTargetNaCl64();

-    unsigned StackPtr = TRI->getStackRegister();

-    BuildMI(MBB, MBBI, DL,

-            TII->get(Uses64BitFramePtr ? X86::MOV64rr : X86::MOV32rr), StackPtr)

-        .addReg(DestAddr.getReg());

-    // The EH_RETURN pseudo is really removed during the MC Lowering.

-    return true;

-  }

-  case X86::IRET: {

-    // Adjust stack to erase error code

-    int64_t StackAdj = MBBI->getOperand(0).getImm();

-    X86FL->emitSPUpdate(MBB, MBBI, StackAdj, true);

-    // Replace pseudo with machine iret

-    BuildMI(MBB, MBBI, DL,

-            TII->get(STI->is64Bit() ? X86::IRET64 : X86::IRET32));

-    MBB.erase(MBBI);

-    return true;

-  }

-  case X86::EH_RESTORE: {

-    // Restore ESP and EBP, and optionally ESI if required.

-    bool IsSEH = isAsynchronousEHPersonality(classifyEHPersonality(

-        MBB.getParent()->getFunction()->getPersonalityFn()));

-    X86FL->restoreWin32EHStackPointers(MBB, MBBI, DL, /*RestoreSP=*/IsSEH);

-    MBBI->eraseFromParent();

-    return true;

-  }

-  }

-  llvm_unreachable("Previous switch has a fallthrough?");

-}

-

-/// Expand all pseudo instructions contained in \p MBB.

-/// \returns true if any expansion occurred for \p MBB.

-bool X86ExpandPseudo::ExpandMBB(MachineBasicBlock &MBB) {

-  bool Modified = false;

-

-  // MBBI may be invalidated by the expansion.

-  MachineBasicBlock::iterator MBBI = MBB.begin(), E = MBB.end();

-  while (MBBI != E) {

-    MachineBasicBlock::iterator NMBBI = std::next(MBBI);

-    Modified |= ExpandMI(MBB, MBBI);

-    MBBI = NMBBI;

-  }

-

-  return Modified;

-}

-

-bool X86ExpandPseudo::runOnMachineFunction(MachineFunction &MF) {

-  STI = &static_cast<const X86Subtarget &>(MF.getSubtarget());

-  TII = STI->getInstrInfo();

-  TRI = STI->getRegisterInfo();

-  X86FL = STI->getFrameLowering();

-

-  bool Modified = false;

-  for (MachineBasicBlock &MBB : MF)

-    Modified |= ExpandMBB(MBB);

-  return Modified;

-}

-

-/// Returns an instance of the pseudo instruction expansion pass.

-FunctionPass *llvm::createX86ExpandPseudoPass() {

-  return new X86ExpandPseudo();

-}

+//===------- X86ExpandPseudo.cpp - Expand pseudo instructions -------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file contains a pass that expands pseudo instructions into target
+// instructions to allow proper scheduling, if-conversion, other late
+// optimizations, or simply the encoding of the instructions.
+//
+//===----------------------------------------------------------------------===//
+
+#include "X86.h"
+#include "X86FrameLowering.h"
+#include "X86InstrBuilder.h"
+#include "X86InstrInfo.h"
+#include "X86MachineFunctionInfo.h"
+#include "X86Subtarget.h"
+#include "llvm/Analysis/EHPersonalities.h"
+#include "llvm/CodeGen/MachineFunctionPass.h"
+#include "llvm/CodeGen/MachineInstrBuilder.h"
+#include "llvm/CodeGen/Passes.h" // For IDs of passes that are preserved.
+#include "llvm/IR/GlobalValue.h"
+using namespace llvm;
+
+#define DEBUG_TYPE "x86-pseudo"
+
+namespace {
+class X86ExpandPseudo : public MachineFunctionPass {
+public:
+  static char ID;
+  X86ExpandPseudo() : MachineFunctionPass(ID) {}
+
+  void getAnalysisUsage(AnalysisUsage &AU) const override {
+    AU.setPreservesCFG();
+    AU.addPreservedID(MachineLoopInfoID);
+    AU.addPreservedID(MachineDominatorsID);
+    MachineFunctionPass::getAnalysisUsage(AU);
+  }
+
+  const X86Subtarget *STI;
+  const X86InstrInfo *TII;
+  const X86RegisterInfo *TRI;
+  const X86FrameLowering *X86FL;
+
+  bool runOnMachineFunction(MachineFunction &Fn) override;
+
+  const char *getPassName() const override {
+    return "X86 pseudo instruction expansion pass";
+  }
+
+private:
+  bool ExpandMI(MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI);
+  bool ExpandMBB(MachineBasicBlock &MBB);
+};
+char X86ExpandPseudo::ID = 0;
+} // End anonymous namespace.
+
+/// If \p MBBI is a pseudo instruction, this method expands
+/// it to the corresponding (sequence of) actual instruction(s).
+/// \returns true if \p MBBI has been expanded.
+bool X86ExpandPseudo::ExpandMI(MachineBasicBlock &MBB,
+                               MachineBasicBlock::iterator MBBI) {
+  MachineInstr &MI = *MBBI;
+  unsigned Opcode = MI.getOpcode();
+  DebugLoc DL = MBBI->getDebugLoc();
+  switch (Opcode) {
+  default:
+    return false;
+  case X86::TCRETURNdi:
+  case X86::TCRETURNri:
+  case X86::TCRETURNmi:
+  case X86::TCRETURNdi64:
+  case X86::TCRETURNri64:
+  case X86::TCRETURNmi64: {
+    bool isMem = Opcode == X86::TCRETURNmi || Opcode == X86::TCRETURNmi64;
+    MachineOperand &JumpTarget = MBBI->getOperand(0);
+    MachineOperand &StackAdjust = MBBI->getOperand(isMem ? 5 : 1);
+    assert(StackAdjust.isImm() && "Expecting immediate value.");
+
+    // Adjust stack pointer.
+    int StackAdj = StackAdjust.getImm();
+
+    if (StackAdj) {
+      // Check for possible merge with preceding ADD instruction.
+      StackAdj += X86FL->mergeSPUpdates(MBB, MBBI, true);
+      X86FL->emitSPUpdate(MBB, MBBI, StackAdj, /*InEpilogue=*/true);
+    }
+
+    // Jump to label or value in register.
+    bool IsWin64 = STI->isTargetWin64();
+    if (Opcode == X86::TCRETURNdi || Opcode == X86::TCRETURNdi64) {
+      unsigned Op = (Opcode == X86::TCRETURNdi)
+                        ? X86::TAILJMPd
+                        : (IsWin64 ? X86::TAILJMPd64_REX : X86::TAILJMPd64);
+      MachineInstrBuilder MIB = BuildMI(MBB, MBBI, DL, TII->get(Op));
+      if (JumpTarget.isGlobal())
+        MIB.addGlobalAddress(JumpTarget.getGlobal(), JumpTarget.getOffset(),
+                             JumpTarget.getTargetFlags());
+      else {
+        assert(JumpTarget.isSymbol());
+        MIB.addExternalSymbol(JumpTarget.getSymbolName(),
+                              JumpTarget.getTargetFlags());
+      }
+    } else if (Opcode == X86::TCRETURNmi || Opcode == X86::TCRETURNmi64) {
+      unsigned Op = (Opcode == X86::TCRETURNmi)
+                        ? X86::TAILJMPm
+                        : (IsWin64 ? X86::TAILJMPm64_REX : X86::TAILJMPm64);
+      MachineInstrBuilder MIB = BuildMI(MBB, MBBI, DL, TII->get(Op));
+      for (unsigned i = 0; i != 5; ++i)
+        MIB.addOperand(MBBI->getOperand(i));
+    } else if (Opcode == X86::TCRETURNri64) {
+      BuildMI(MBB, MBBI, DL,
+              TII->get(IsWin64 ? X86::TAILJMPr64_REX : X86::TAILJMPr64))
+          .addReg(JumpTarget.getReg(), RegState::Kill);
+    } else {
+      BuildMI(MBB, MBBI, DL, TII->get(X86::TAILJMPr))
+          .addReg(JumpTarget.getReg(), RegState::Kill);
+    }
+
+    MachineInstr *NewMI = std::prev(MBBI);
+    NewMI->copyImplicitOps(*MBBI->getParent()->getParent(), MBBI);
+
+    // Delete the pseudo instruction TCRETURN.
+    MBB.erase(MBBI);
+
+    return true;
+  }
+  case X86::EH_RETURN:
+  case X86::EH_RETURN64: {
+    MachineOperand &DestAddr = MBBI->getOperand(0);
+    assert(DestAddr.isReg() && "Offset should be in register!");
+    const bool Uses64BitFramePtr =
+        STI->isTarget64BitLP64() || STI->isTargetNaCl64();
+    unsigned StackPtr = TRI->getStackRegister();
+    BuildMI(MBB, MBBI, DL,
+            TII->get(Uses64BitFramePtr ? X86::MOV64rr : X86::MOV32rr), StackPtr)
+        .addReg(DestAddr.getReg());
+    // The EH_RETURN pseudo is really removed during the MC Lowering.
+    return true;
+  }
+  case X86::IRET: {
+    // Adjust stack to erase error code
+    int64_t StackAdj = MBBI->getOperand(0).getImm();
+    X86FL->emitSPUpdate(MBB, MBBI, StackAdj, true);
+    // Replace pseudo with machine iret
+    BuildMI(MBB, MBBI, DL,
+            TII->get(STI->is64Bit() ? X86::IRET64 : X86::IRET32));
+    MBB.erase(MBBI);
+    return true;
+  }
+  case X86::EH_RESTORE: {
+    // Restore ESP and EBP, and optionally ESI if required.
+    bool IsSEH = isAsynchronousEHPersonality(classifyEHPersonality(
+        MBB.getParent()->getFunction()->getPersonalityFn()));
+    X86FL->restoreWin32EHStackPointers(MBB, MBBI, DL, /*RestoreSP=*/IsSEH);
+    MBBI->eraseFromParent();
+    return true;
+  }
+  }
+  llvm_unreachable("Previous switch has a fallthrough?");
+}
+
+/// Expand all pseudo instructions contained in \p MBB.
+/// \returns true if any expansion occurred for \p MBB.
+bool X86ExpandPseudo::ExpandMBB(MachineBasicBlock &MBB) {
+  bool Modified = false;
+
+  // MBBI may be invalidated by the expansion.
+  MachineBasicBlock::iterator MBBI = MBB.begin(), E = MBB.end();
+  while (MBBI != E) {
+    MachineBasicBlock::iterator NMBBI = std::next(MBBI);
+    Modified |= ExpandMI(MBB, MBBI);
+    MBBI = NMBBI;
+  }
+
+  return Modified;
+}
+
+bool X86ExpandPseudo::runOnMachineFunction(MachineFunction &MF) {
+  STI = &static_cast<const X86Subtarget &>(MF.getSubtarget());
+  TII = STI->getInstrInfo();
+  TRI = STI->getRegisterInfo();
+  X86FL = STI->getFrameLowering();
+
+  bool Modified = false;
+  for (MachineBasicBlock &MBB : MF)
+    Modified |= ExpandMBB(MBB);
+  return Modified;
+}
+
+/// Returns an instance of the pseudo instruction expansion pass.
+FunctionPass *llvm::createX86ExpandPseudoPass() {
+  return new X86ExpandPseudo();
+}