From: Dan Gohman <gohman@apple.com>
Date: Mon, 13 Apr 2009 15:22:29 +0000 (+0000)
Subject: Don't abort on an aliasing physical register that does not have
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=70f2f65aacdbc96fe158b2860b5f0bad075ee548;p=oota-llvm.git

Don't abort on an aliasing physical register that does not have
a live interval. This is needed for some upcoming subreg changes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68956 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/LiveIntervalAnalysis.cpp b/lib/CodeGen/LiveIntervalAnalysis.cpp
index 3bc05a9b9a6..7c8041b1691 100644
--- a/lib/CodeGen/LiveIntervalAnalysis.cpp
+++ b/lib/CodeGen/LiveIntervalAnalysis.cpp
@@ -2235,7 +2235,7 @@ bool LiveIntervals::spillPhysRegAroundRegDefsUses(const LiveInterval &li,
     // If there are registers which alias PhysReg, but which are not a
     // sub-register of the chosen representative super register. Assert
     // since we can't handle it yet.
-    assert(*AS == SpillReg || !allocatableRegs_[*AS] ||
+    assert(*AS == SpillReg || !allocatableRegs_[*AS] || !hasInterval(*AS) ||
            tri_->isSuperRegister(*AS, SpillReg));
 
   bool Cut = false;