Revert "[ARM] push LR before __gnu_mcount_nc"

This reverts commit f4cf3b959333f62b7a7b2d7771f7010c9d8da388.

llvm-svn: 369149

1 files changed, 0 insertions, 31 deletions

diff --git a/llvm/lib/Target/ARM/ARMExpandPseudoInsts.cpp b/llvm/lib/Target/ARM/ARMExpandPseudoInsts.cpp
index 73ebe0940f3..bd4ca3828fc 100644
--- a/llvm/lib/Target/ARM/ARMExpandPseudoInsts.cpp
+++ b/llvm/lib/Target/ARM/ARMExpandPseudoInsts.cpp
@@ -1916,37 +1916,6 @@ bool ARMExpandPseudo::ExpandMI(MachineBasicBlock &MBB,
 
     case ARM::CMP_SWAP_64:
       return ExpandCMP_SWAP_64(MBB, MBBI, NextMBBI);
-
-    case ARM::tBL_PUSHLR:
-    case ARM::BL_PUSHLR: {
-      const bool Thumb = Opcode == ARM::tBL_PUSHLR;
-      Register Reg = MI.getOperand(0).getReg();
-      assert(Reg == ARM::LR && "expect LR register!");
-      MachineInstrBuilder MIB;
-      if (Thumb) {
-        // push {lr}
-        BuildMI(MBB, MBBI, MI.getDebugLoc(), TII->get(ARM::tPUSH))
-            .add(predOps(ARMCC::AL))
-            .addReg(Reg);
-
-        // bl __gnu_mcount_nc
-        MIB = BuildMI(MBB, MBBI, MI.getDebugLoc(), TII->get(ARM::tBL));
-      } else {
-        // stmdb   sp!, {lr}
-        BuildMI(MBB, MBBI, MI.getDebugLoc(), TII->get(ARM::STMDB_UPD))
-            .addReg(ARM::SP, RegState::Define)
-            .addReg(ARM::SP)
-            .add(predOps(ARMCC::AL))
-            .addReg(Reg);
-
-        // bl __gnu_mcount_nc
-        MIB = BuildMI(MBB, MBBI, MI.getDebugLoc(), TII->get(ARM::BL));
-      }
-      MIB.cloneMemRefs(MI);
-      for (unsigned i = 1; i < MI.getNumOperands(); ++i) MIB.add(MI.getOperand(i));
-      MI.eraseFromParent();
-      return true;
-    }
   }
 }