From: Chris Lattner <sabre@nondot.org>
Date: Wed, 25 Feb 2004 19:37:44 +0000 (+0000)
Subject: Add an assertion
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=95c34f2efd5051a4b7bc872435807c0b114b459c;p=oota-llvm.git

Add an assertion


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11830 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/RegAllocLinearScan.cpp b/lib/CodeGen/RegAllocLinearScan.cpp
index 42029dc6b0a..b45281e6719 100644
--- a/lib/CodeGen/RegAllocLinearScan.cpp
+++ b/lib/CodeGen/RegAllocLinearScan.cpp
@@ -378,6 +378,7 @@ void RA::assignRegOrStackSlotAtInterval(IntervalPtrs::value_type cur)
     }
     DEBUG(std::cerr << "\t\tregister with min weight: "
           << mri_->getName(minReg) << " (" << minWeight << ")\n");
+    assert(minReg != 0 && "Didn't find a register to spill?");
 
     // if the current has the minimum weight, we need to modify it,
     // push it back in unhandled and let the linear scan algorithm run