commit 92a55f4bdd120cdd3bb5a004c792d4d24a940311
author Jakob Stoklund Olesen <stoklund@2pi.dk> Wed Mar 09 00:57:29 2011 +0000
committer Jakob Stoklund Olesen <stoklund@2pi.dk> Wed Mar 09 00:57:29 2011 +0000
tree ab385f0eb486061c25020ab422032a3beaba78f3
parent 2adc5b6a17268834b08fda444b1a84550e8c5ae8

Add a LiveRangeEdit::Delegate protocol.

This will we used for keeping register allocator data structures up to date
while LiveRangeEdit is trimming live intervals.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127300 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/LiveRangeEdit.cpp

diff --git a/lib/CodeGen/LiveRangeEdit.cpp b/lib/CodeGen/LiveRangeEdit.cpp
index 4e2c00d..75aeac4 100644
--- a/lib/CodeGen/LiveRangeEdit.cpp
+++ b/lib/CodeGen/LiveRangeEdit.cpp
@@ -174,6 +174,8 @@
           ToShrink.insert(&LI);
       }
 
+      if (delegate_)
+        delegate_->LRE_WillEraseInstruction(MI);
       LIS.RemoveMachineInstrFromMaps(MI);
       MI->eraseFromParent();
     }