From 5d00b3213e42d09ec309ad8daf93c66d3d92ea0b Mon Sep 17 00:00:00 2001
From: Matthias Braun <matze@braunis.de>
Date: Sat, 16 Jul 2016 01:36:18 +0000
Subject: MIParser: reject subregister indexes on physregs

llvm-svn: 275658
---
 llvm/lib/CodeGen/MIRParser/MIParser.cpp | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'llvm/lib/CodeGen/MIRParser/MIParser.cpp')

diff --git a/llvm/lib/CodeGen/MIRParser/MIParser.cpp b/llvm/lib/CodeGen/MIRParser/MIParser.cpp
index 0b5c59dee0c..b3fd16f1588 100644
--- a/llvm/lib/CodeGen/MIRParser/MIParser.cpp
+++ b/llvm/lib/CodeGen/MIRParser/MIParser.cpp
@@ -962,6 +962,8 @@ bool MIParser::parseRegisterOperand(MachineOperand &Dest,
   if (Token.is(MIToken::colon)) {
     if (parseSubRegisterIndex(SubReg))
       return true;
+    if (!TargetRegisterInfo::isVirtualRegister(Reg))
+      return error("subregister index expects a virtual register");
   }
   if ((Flags & RegState::Define) == 0) {
     if (consumeIfPresent(MIToken::lparen)) {
-- 
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