[LLVMdev] RegisterCoalescing pass crashes with ImplicitDef registers

[Jakob Stoklund Olesen]

On Oct 20, 2012, at 3:37 PM, Vincent Lejeune <vljn at ovi.com> wrote:

> #5  0x00000000010c8e83 in (anonymous namespace)::JoinVals::getAssignments (this=0x7fffffffd230) at RegisterCoalescer.cpp:1305

Does this fix it?

diff --git a/lib/CodeGen/RegisterCoalescer.cpp b/lib/CodeGen/RegisterCoalescer.cpp
index ba6b456..2ca67d6 100644
--- a/lib/CodeGen/RegisterCoalescer.cpp
+++ b/lib/CodeGen/RegisterCoalescer.cpp
@@ -1302,7 +1302,7 @@ public:
                    SmallVectorImpl<unsigned> &ShrinkRegs);
 
   /// Get the value assignments suitable for passing to LiveInterval::join.
-  const int *getAssignments() const { return &Assignments[0]; }
+  const int *getAssignments() const { return Assignments.data(); }
 };
 } // end anonymous namespace
 

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