From: Dale Johannesen <dalej@apple.com>
Date: Tue, 15 Jun 2010 03:13:49 +0000 (+0000)
Subject: The form of BuildMI used for TAILJMPr was changing the register
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=4b559f070a118341f575bbedd5a1d6b6c27a608b;p=oota-llvm.git

The form of BuildMI used for TAILJMPr was changing the register
containing the target address, an input, into an output.  I don't
think this actually broke anything on x86 (it does on ARM), but
it's wrong.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105986 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/X86/X86RegisterInfo.cpp b/lib/Target/X86/X86RegisterInfo.cpp
index e74db6d5fcf..b80a40ecea4 100644
--- a/lib/Target/X86/X86RegisterInfo.cpp
+++ b/lib/Target/X86/X86RegisterInfo.cpp
@@ -1279,9 +1279,11 @@ void X86RegisterInfo::emitEpilogue(MachineFunction &MF,
       for (unsigned i = 0; i != 5; ++i)
         MIB.addOperand(MBBI->getOperand(i));
     } else if (RetOpcode == X86::TCRETURNri64) {
-      BuildMI(MBB, MBBI, DL, TII.get(X86::TAILJMPr64), JumpTarget.getReg());
+      BuildMI(MBB, MBBI, DL, TII.get(X86::TAILJMPr64)).
+        addReg(JumpTarget.getReg(), JumpTarget.getTargetFlags());
     } else {
-      BuildMI(MBB, MBBI, DL, TII.get(X86::TAILJMPr), JumpTarget.getReg());
+      BuildMI(MBB, MBBI, DL, TII.get(X86::TAILJMPr)).
+        addReg(JumpTarget.getReg(), JumpTarget.getTargetFlags());
     }
 
     MachineInstr *NewMI = prior(MBBI);