From e340e84196af8618b623d499a040150373ae5da4 Mon Sep 17 00:00:00 2001
From: Dan Gohman <gohman@apple.com>
Date: Thu, 14 May 2009 00:30:16 +0000
Subject: [PATCH] Add an assert to turn a segfault on an unsupported inline asm
 construct into an assertion failure.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71757 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
index b340d0c971b..bbd8b5aa360 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
@@ -5325,6 +5325,8 @@ void SelectionDAGLowering::visitInlineAsm(CallSite CS) {
         if ((OpFlag & 7) == 2 /*REGDEF*/
             || (OpFlag & 7) == 6 /* EARLYCLOBBER REGDEF */) {
           // Add (OpFlag&0xffff)>>3 registers to MatchedRegs.
+          assert(!OpInfo.isIndirect &&
+                 "Don't know how to handle tied indirect register inputs yet!");
           RegsForValue MatchedRegs;
           MatchedRegs.TLI = &TLI;
           MatchedRegs.ValueVTs.push_back(InOperandVal.getValueType());