From aa765b8c35aa3a5cca9681d6e3c44091d94f23d9 Mon Sep 17 00:00:00 2001
From: Evan Cheng <evan.cheng@apple.com>
Date: Thu, 25 Sep 2008 00:14:04 +0000
Subject: [PATCH] <rdar://problem/6234798> Assertion failed:
 (!OpInfo.AssignedRegs.Regs.empty() && "Couldn't allocate input reg!")

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56597 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
index 1365d684f4d..ac4a639ea31 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
@@ -4940,8 +4940,11 @@ void SelectionDAGLowering::visitInlineAsm(CallSite CS) {
              "Don't know how to handle indirect register inputs yet!");
 
       // Copy the input into the appropriate registers.
-      assert(!OpInfo.AssignedRegs.Regs.empty() &&
-             "Couldn't allocate input reg!");
+      if (OpInfo.AssignedRegs.Regs.empty()) {
+        cerr << "Couldn't allocate output reg for constraint '"
+             << OpInfo.ConstraintCode << "'!\n";
+        exit(1);
+      }
 
       OpInfo.AssignedRegs.getCopyToRegs(InOperandVal, DAG, Chain, &Flag);
       
-- 
2.34.1