From 85abd983f26b9ea2b0bdc58c03f9427a7a3602c3 Mon Sep 17 00:00:00 2001
From: Dan Gohman <gohman@apple.com>
Date: Mon, 13 Apr 2009 15:16:56 +0000
Subject: Add an assertion to verify that a copy was actually emitted.

llvm-svn: 68953
---
 llvm/lib/CodeGen/TwoAddressInstructionPass.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'llvm/lib/CodeGen/TwoAddressInstructionPass.cpp')

diff --git a/llvm/lib/CodeGen/TwoAddressInstructionPass.cpp b/llvm/lib/CodeGen/TwoAddressInstructionPass.cpp
index 8aa866ea29b..20770a17ef2 100644
--- a/llvm/lib/CodeGen/TwoAddressInstructionPass.cpp
+++ b/llvm/lib/CodeGen/TwoAddressInstructionPass.cpp
@@ -857,7 +857,8 @@ bool TwoAddressInstructionPass::runOnMachineFunction(MachineFunction &MF) {
             ReMatRegs.set(regB);
             ++NumReMats;
           } else {
-            TII->copyRegToReg(*mbbi, mi, regA, regB, rc, rc);
+            bool Emitted = TII->copyRegToReg(*mbbi, mi, regA, regB, rc, rc);
+            assert(Emitted && "Unable to issue a copy instruction!\n");
           }
 
           MachineBasicBlock::iterator prevMI = prior(mi);
-- 
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