[llvm-commits] [llvm] r157632 - /llvm/trunk/lib/CodeGen/LiveIntervalAnalysis.cpp

[Lang Hames]

Author: lhames
Date: Tue May 29 13:19:54 2012
New Revision: 157632

URL: http://llvm.org/viewvc/llvm-project?rev=157632&view=rev
Log:
Clear the entering, exiting and internal ranges of a bundle before collecting
ranges for the instruction about to be bundled. This fixes a bug in an external
project where an assertion was triggered due to spurious 'multiple defs' within
the bundle.

Patch by Ivan Llopard. Thanks Ivan!


Modified:
    llvm/trunk/lib/CodeGen/LiveIntervalAnalysis.cpp

Modified: llvm/trunk/lib/CodeGen/LiveIntervalAnalysis.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/LiveIntervalAnalysis.cpp?rev=157632&r1=157631&r2=157632&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/LiveIntervalAnalysis.cpp (original)
+++ llvm/trunk/lib/CodeGen/LiveIntervalAnalysis.cpp Tue May 29 13:19:54 2012
@@ -1097,6 +1097,9 @@
 
     BundleRanges BR = createBundleRanges(Entering, Internal, Exiting);
 
+    Entering.clear();
+    Internal.clear();
+    Exiting.clear();
     collectRanges(MI, Entering, Internal, Exiting, hasRegMaskOp, OldIdx);
     assert(!hasRegMaskOp && "Can't have RegMask operand in bundle.");