From e261b0c90b25b7ce7a68953e7adecf370c87256e Mon Sep 17 00:00:00 2001
From: Bob Wilson <bob.wilson@apple.com>
Date: Tue, 22 Dec 2009 18:34:19 +0000
Subject: [PATCH] Report an error for bad inline assembly, where the value
 passed for an "indirect" operand is not a pointer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91913 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index f1b2c1dcc45..68a2e7b7c27 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -5482,8 +5482,12 @@ public:
 
     // If this is an indirect operand, the operand is a pointer to the
     // accessed type.
-    if (isIndirect)
-      OpTy = cast<PointerType>(OpTy)->getElementType();
+    if (isIndirect) {
+      const llvm::PointerType *PtrTy = dyn_cast<PointerType>(OpTy);
+      if (!PtrTy)
+        llvm_report_error("Indirect operand for inline asm not a pointer!");
+      OpTy = PtrTy->getElementType();
+    }
 
     // If OpTy is not a single value, it may be a struct/union that we
     // can tile with integers.