From ea21ad49261a6a9d1614c01e631c2cdc4d554b84 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Thu, 22 May 2008 04:46:38 +0000
Subject: [PATCH] Fix PR2267, by allowing indirect outputs to be intermixed
 with normal outputs.  Testcase here: test/CodeGen/X86/asm-indirect-mem.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51409 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/VMCore/InlineAsm.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lib/VMCore/InlineAsm.cpp b/lib/VMCore/InlineAsm.cpp
index d563e9557a6..5eefc8842ba 100644
--- a/lib/VMCore/InlineAsm.cpp
+++ b/lib/VMCore/InlineAsm.cpp
@@ -183,15 +183,18 @@ bool InlineAsm::Verify(const FunctionType *Ty, const std::string &ConstStr) {
   if (Constraints.empty() && !ConstStr.empty()) return false;
   
   unsigned NumOutputs = 0, NumInputs = 0, NumClobbers = 0;
+  unsigned NumIndirect = 0;
   
   for (unsigned i = 0, e = Constraints.size(); i != e; ++i) {
     switch (Constraints[i].Type) {
     case InlineAsm::isOutput:
+      if ((NumInputs-NumIndirect) != 0 || NumClobbers != 0)
+        return false;  // outputs before inputs and clobbers.
       if (!Constraints[i].isIndirect) {
-        if (NumInputs || NumClobbers) return false;  // outputs come first.
         ++NumOutputs;
         break;
       }
+      ++NumIndirect;
       // FALLTHROUGH for Indirect Outputs.
     case InlineAsm::isInput:
       if (NumClobbers) return false;               // inputs before clobbers.