From 8e50aba5f9734f7a083b6425b46cbc008e9ef0d0 Mon Sep 17 00:00:00 2001
From: Akira Hatanaka <ahatanaka@mips.com>
Date: Tue, 30 Oct 2012 19:07:58 +0000
Subject: [PATCH] Do not do tail-call optimization if target is mips16.

llvm-svn: 167039
---
 llvm/lib/Target/Mips/MipsISelLowering.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/llvm/lib/Target/Mips/MipsISelLowering.cpp b/llvm/lib/Target/Mips/MipsISelLowering.cpp
index b485b5e..4479c48 100644
--- a/llvm/lib/Target/Mips/MipsISelLowering.cpp
+++ b/llvm/lib/Target/Mips/MipsISelLowering.cpp
@@ -2665,6 +2665,10 @@ IsEligibleForTailCallOptimization(const MipsCC &MipsCCInfo, bool IsVarArg,
   if (!EnableMipsTailCalls)
     return false;
 
+  // No tail call optimization for mips16.
+  if (Subtarget->inMips16Mode())
+    return false;
+
   if (MipsCCInfo.hasByValArg() || IsVarArg)
     return false;
 
-- 
2.7.4