commit 6cf7c390ecf33cdbe9e65d230e4f61ac548893e6
author Owen Anderson <resistor@mac.com> Wed Jan 21 00:13:28 2009 +0000
committer Owen Anderson <resistor@mac.com> Wed Jan 21 00:13:28 2009 +0000
tree 7f92f3d67cc3691f1b81daa7758fa2dea10f2267
parent 476615934a74a313a691413230d249889cfaa2f8

Be more aggressive about renumbering vregs after splitting them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62639 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/PreAllocSplitting.cpp

diff --git a/lib/CodeGen/PreAllocSplitting.cpp b/lib/CodeGen/PreAllocSplitting.cpp
index 6b37637..3c8257f 100644
--- a/lib/CodeGen/PreAllocSplitting.cpp
+++ b/lib/CodeGen/PreAllocSplitting.cpp
@@ -1127,9 +1127,11 @@
   LIs->InsertMachineInstrInMaps(prior(RestorePt), RestoreIdx);
   
   if (KillPt->getParent() == BarrierMBB) {
-    UpdateRegisterInterval(ValNo, LIs->getUseIndex(KillIdx)+1,
+    VNInfo* After = UpdateRegisterInterval(ValNo, LIs->getUseIndex(KillIdx)+1,
                            LIs->getDefIndex(RestoreIdx));
     
+    RenumberValno(After);
+
     ++NumSplits;
     ++NumRemats;
     return true;
@@ -1312,9 +1314,11 @@
     UpdateSpillSlotInterval(ValNo, LIs->getUseIndex(SpillIndex)+1,
                             LIs->getDefIndex(RestoreIndex));
 
-    UpdateRegisterInterval(ValNo, LIs->getUseIndex(SpillIndex)+1,
+    VNInfo* After = UpdateRegisterInterval(ValNo,
+                           LIs->getUseIndex(SpillIndex)+1,
                            LIs->getDefIndex(RestoreIndex));
-    
+    RenumberValno(After);
+   
     ++NumSplits;
     return true;
   }