Add all implicit defs to FP_REG_KILL mi.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31674 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 6 insertions, 1 deletions

diff --git a/lib/Target/X86/X86ISelDAGToDAG.cpp b/lib/Target/X86/X86ISelDAGToDAG.cpp
index 68b89a4d16..ddc730d959 100644
--- a/lib/Target/X86/X86ISelDAGToDAG.cpp
+++ b/lib/Target/X86/X86ISelDAGToDAG.cpp
@@ -525,7 +525,12 @@ void X86DAGToDAGISel::InstructionSelectBasicBlock(SelectionDAG &DAG) {
 
     // Finally, if we found any FP code, emit the FP_REG_KILL instruction.
     if (ContainsFPCode) {
-      BuildMI(*BB, BB->getFirstTerminator(), X86::FP_REG_KILL, 0);
+      const TargetInstrDescriptor &II= TM.getInstrInfo()->get(X86::FP_REG_KILL);
+      MachineInstrBuilder MIB =
+        BuildMI(*BB, BB->getFirstTerminator(), X86::FP_REG_KILL, 0);
+      for (const unsigned *ImplicitDefs = II.ImplicitDefs;
+           *ImplicitDefs; ++ImplicitDefs)
+        MIB = MIB.addReg(*ImplicitDefs, true, true);
       ++NumFPKill;
     }
   }