Reverting r55898 to r55909. One of these patches was causing an ICE during the full bootstrap on Darwin:

/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.obj/./gcc/xgcc
-B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.obj/./gcc/
-B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.4.0/bin/
-B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.4.0/lib/
-isystem /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.4.0/include
-isystem /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.4.0/sys-include
-O2  -O2 -g -O2  -DIN_GCC    -W -Wall -Wwrite-strings
-Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition
-isystem ./include  -fPIC -pipe -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2
-D__GCC_FLOAT_NOT_NEEDED  -I. -I. -I../../llvm-gcc.src/gcc
-I../../llvm-gcc.src/gcc/. -I../../llvm-gcc.src/gcc/../include
-I./../intl -I../../llvm-gcc.src/gcc/../libcpp/include
-I../../llvm-gcc.src/gcc/../libdecnumber -I../libdecnumber
-I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.obj/include
-I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/include
-DSHARED -m64 -DL_negdi2 -c ../../llvm-gcc.src/gcc/libgcc2.c -o
libgcc/x86_64/_negdi2_s.o
Assertion failed: (TargetRegisterInfo::isVirtualRegister(regA) &&
TargetRegisterInfo::isVirtualRegister(regB) && "cannot update physical
register live information"), function runOnMachineFunction, file
/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/lib/CodeGen/TwoAddressInstructionPass.cpp,
line 311.
/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.obj/./gcc/xgcc
-B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.obj/./gcc/
-B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.4.0/bin/
-B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.4.0/lib/
-isystem /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.4.0/include
-isystem /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.4.0/sys-include
-O2  -O2 -g -O2  -DIN_GCC    -W -Wall -Wwrite-strings
-Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition
-isystem ./include  -fPIC -pipe -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2
-D__GCC_FLOAT_NOT_NEEDED  -I. -I. -I../../llvm-gcc.src/gcc
-I../../llvm-gcc.src/gcc/. -I../../llvm-gcc.src/gcc/../include
-I./../intl -I../../llvm-gcc.src/gcc/../libcpp/include
-I../../llvm-gcc.src/gcc/../libdecnumber -I../libdecnumber
-I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.obj/include
-I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/include
-DSHARED -m64 -DL_lshrdi3 -c ../../llvm-gcc.src/gcc/libgcc2.c -o
libgcc/x86_64/_lshrdi3_s.o
../../llvm-gcc.src/gcc/unwind-dw2.c:1527: internal compiler error: Abort trap
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://developer.apple.com/bugreporter> for instructions.
{standard input}:unknown:Undefined local symbol LBB21_11
{standard input}:unknown:Undefined local symbol LBB21_12
{standard input}:unknown:Undefined local symbol LBB21_13
{standard input}:unknown:Undefined local symbol LBB21_8


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55928 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 20 insertions, 38 deletions

diff --git a/lib/Target/X86/X86RegisterInfo.cpp b/lib/Target/X86/X86RegisterInfo.cpp
index 3a8209ae7f..d7bf93974e 100644
--- a/lib/Target/X86/X86RegisterInfo.cpp
+++ b/lib/Target/X86/X86RegisterInfo.cpp
@@ -159,14 +159,6 @@ X86RegisterInfo::getCrossCopyRegClass(const TargetRegisterClass *RC) const {
 
 const unsigned *
 X86RegisterInfo::getCalleeSavedRegs(const MachineFunction *MF) const {
-  bool callsEHReturn = false;
-
-  if (MF) {
-    const MachineFrameInfo *MFI = MF->getFrameInfo();
-    const MachineModuleInfo *MMI = MFI->getMachineModuleInfo();
-    callsEHReturn = (MMI ? MMI->callsEHReturn() : false);
-  }
-
   static const unsigned CalleeSavedRegs32Bit[] = {
     X86::ESI, X86::EDI, X86::EBX, X86::EBP,  0
   };
@@ -179,11 +171,6 @@ X86RegisterInfo::getCalleeSavedRegs(const MachineFunction *MF) const {
     X86::RBX, X86::R12, X86::R13, X86::R14, X86::R15, X86::RBP, 0
   };
 
-  static const unsigned CalleeSavedRegs64EHRet[] = {
-    X86::RAX, X86::RDX, X86::RBX, X86::R12,
-    X86::R13, X86::R14, X86::R15, X86::RBP, 0
-  };
-
   static const unsigned CalleeSavedRegsWin64[] = {
     X86::RBX, X86::RBP, X86::RDI, X86::RSI,
     X86::R12, X86::R13, X86::R14, X86::R15, 0
@@ -193,22 +180,20 @@ X86RegisterInfo::getCalleeSavedRegs(const MachineFunction *MF) const {
     if (IsWin64)
       return CalleeSavedRegsWin64;
     else
-      return (callsEHReturn ? CalleeSavedRegs64EHRet : CalleeSavedRegs64Bit);
+      return CalleeSavedRegs64Bit;
   } else {
-    return (callsEHReturn ? CalleeSavedRegs32EHRet : CalleeSavedRegs32Bit);
+    if (MF) {
+        const MachineFrameInfo *MFI = MF->getFrameInfo();
+        const MachineModuleInfo *MMI = MFI->getMachineModuleInfo();
+        if (MMI && MMI->callsEHReturn())
+          return CalleeSavedRegs32EHRet;
+    }
+    return CalleeSavedRegs32Bit;
   }
 }
 
 const TargetRegisterClass* const*
 X86RegisterInfo::getCalleeSavedRegClasses(const MachineFunction *MF) const {
-  bool callsEHReturn = false;
-
-  if (MF) {
-    const MachineFrameInfo *MFI = MF->getFrameInfo();
-    const MachineModuleInfo *MMI = MFI->getMachineModuleInfo();
-    callsEHReturn = (MMI ? MMI->callsEHReturn() : false);
-  }
-
   static const TargetRegisterClass * const CalleeSavedRegClasses32Bit[] = {
     &X86::GR32RegClass, &X86::GR32RegClass,
     &X86::GR32RegClass, &X86::GR32RegClass,  0
@@ -223,12 +208,6 @@ X86RegisterInfo::getCalleeSavedRegClasses(const MachineFunction *MF) const {
     &X86::GR64RegClass, &X86::GR64RegClass,
     &X86::GR64RegClass, &X86::GR64RegClass, 0
   };
-  static const TargetRegisterClass * const CalleeSavedRegClasses64EHRet[] = {
-    &X86::GR64RegClass, &X86::GR64RegClass,
-    &X86::GR64RegClass, &X86::GR64RegClass,
-    &X86::GR64RegClass, &X86::GR64RegClass,
-    &X86::GR64RegClass, &X86::GR64RegClass, 0
-  };
   static const TargetRegisterClass * const CalleeSavedRegClassesWin64[] = {
     &X86::GR64RegClass, &X86::GR64RegClass,
     &X86::GR64RegClass, &X86::GR64RegClass,
@@ -240,12 +219,17 @@ X86RegisterInfo::getCalleeSavedRegClasses(const MachineFunction *MF) const {
     if (IsWin64)
       return CalleeSavedRegClassesWin64;
     else
-      return (callsEHReturn ?
-              CalleeSavedRegClasses64EHRet : CalleeSavedRegClasses64Bit);
+      return CalleeSavedRegClasses64Bit;
   } else {
-    return (callsEHReturn ?
-            CalleeSavedRegClasses32EHRet : CalleeSavedRegClasses32Bit);
+    if (MF) {
+        const MachineFrameInfo *MFI = MF->getFrameInfo();
+        const MachineModuleInfo *MMI = MFI->getMachineModuleInfo();
+        if (MMI && MMI->callsEHReturn())
+          return CalleeSavedRegClasses32EHRet;
+    }
+    return CalleeSavedRegClasses32Bit;
   }
+
 }
 
 BitVector X86RegisterInfo::getReservedRegs(const MachineFunction &MF) const {
@@ -803,7 +787,6 @@ void X86RegisterInfo::emitEpilogue(MachineFunction &MF,
   case X86::TCRETURNri64:
   case X86::TCRETURNdi64:
   case X86::EH_RETURN:
-  case X86::EH_RETURN64:
   case X86::TAILJMPd:
   case X86::TAILJMPr:
   case X86::TAILJMPm: break;  // These are ok
@@ -877,13 +860,12 @@ void X86RegisterInfo::emitEpilogue(MachineFunction &MF,
   }
 
   // We're returning from function via eh_return.
-  if (RetOpcode == X86::EH_RETURN || RetOpcode == X86::EH_RETURN64) {
+  if (RetOpcode == X86::EH_RETURN) {
     MBBI = prior(MBB.end());
     MachineOperand &DestAddr  = MBBI->getOperand(0);
     assert(DestAddr.isRegister() && "Offset should be in register!");
-    BuildMI(MBB, MBBI,
-            TII.get(Is64Bit ? X86::MOV64rr : X86::MOV32rr),
-            StackPtr).addReg(DestAddr.getReg());
+    BuildMI(MBB, MBBI, TII.get(Is64Bit ? X86::MOV64rr : X86::MOV32rr),StackPtr).
+      addReg(DestAddr.getReg());
   // Tail call return: adjust the stack pointer and jump to callee
   } else if (RetOpcode == X86::TCRETURNri || RetOpcode == X86::TCRETURNdi ||
              RetOpcode== X86::TCRETURNri64 || RetOpcode == X86::TCRETURNdi64) {