commit e951cd1647834c1c6877ca9a699ef6b00a2d0ce9
author Evan Cheng <evan.cheng@apple.com> Sun Mar 18 09:02:31 2007 +0000
committer Evan Cheng <evan.cheng@apple.com> Sun Mar 18 09:02:31 2007 +0000
tree e899f3d6c18fdab15135930d85a7159d38424800
parent 7e79e396a4ee6f96346881e090c943d7207d8abe

Keep UsedBlocks info accurate.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35140 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/TwoAddressInstructionPass.cpp

diff --git a/lib/CodeGen/TwoAddressInstructionPass.cpp b/lib/CodeGen/TwoAddressInstructionPass.cpp
index ba768ba..9209420 100644
--- a/lib/CodeGen/TwoAddressInstructionPass.cpp
+++ b/lib/CodeGen/TwoAddressInstructionPass.cpp
@@ -198,6 +198,9 @@
           varInfo.DefInst = prevMi;
 
           // update live variables for regB
+          LiveVariables::VarInfo& varInfoB = LV.getVarInfo(regB);
+          // regB is used in this BB.
+          varInfoB.UsedBlocks[mbbi->getNumber()] = true;
           if (LV.removeVirtualRegisterKilled(regB, mbbi, mi))
             LV.addVirtualRegisterKilled(regB, prevMi);