misched: Added handleMove support for updating all kill flags, not just for allocatable regs.

This is a medium term workaround until we have a more robust solution
in the form of a register liveness utility for postRA passes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166001 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 7 insertions, 2 deletions

diff --git a/include/llvm/CodeGen/LiveIntervalAnalysis.h b/include/llvm/CodeGen/LiveIntervalAnalysis.h
index a04c902..73def2c 100644
--- a/include/llvm/CodeGen/LiveIntervalAnalysis.h
+++ b/include/llvm/CodeGen/LiveIntervalAnalysis.h
@@ -260,15 +260,20 @@ namespace llvm {
     /// instruction 'mi' has been moved within a basic block. This will update
     /// the live intervals for all operands of mi. Moves between basic blocks
     /// are not supported.
-    void handleMove(MachineInstr* MI);
+    ///
+    /// \param updateFlags Update live intervals for nonallocatable physregs.
+    void handleMove(MachineInstr* MI, bool UpdateFlags = false);
 
     /// moveIntoBundle - Update intervals for operands of MI so that they
     /// begin/end on the SlotIndex for BundleStart.
     ///
+    /// \param updateFlags Update live intervals for nonallocatable physregs.
+    ///
     /// Requires MI and BundleStart to have SlotIndexes, and assumes
     /// existing liveness is accurate. BundleStart should be the first
     /// instruction in the Bundle.
-    void handleMoveIntoBundle(MachineInstr* MI, MachineInstr* BundleStart);
+    void handleMoveIntoBundle(MachineInstr* MI, MachineInstr* BundleStart,
+                              bool UpdateFlags = false);
 
     // Register mask functions.
     //