From: Craig Topper <craig.topper@gmail.com>
Date: Fri, 25 Dec 2015 17:07:32 +0000 (+0000)
Subject: [X86] getX86SubSuperRegisterOrZero shouldn't call getX86SubSuperRegister recursively... 
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=041d7c3b778b2ecaa183f53b08b63e6b5f00bdba;p=oota-llvm.git

[X86] getX86SubSuperRegisterOrZero shouldn't call getX86SubSuperRegister recursively. It should call itself instead. Otherwise it might fire an assertion when it was designed not too.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256422 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/X86/X86RegisterInfo.cpp b/lib/Target/X86/X86RegisterInfo.cpp
index b0ea7367dd3..358bea68085 100644
--- a/lib/Target/X86/X86RegisterInfo.cpp
+++ b/lib/Target/X86/X86RegisterInfo.cpp
@@ -638,7 +638,7 @@ unsigned getX86SubSuperRegisterOrZero(unsigned Reg, MVT::SimpleValueType VT,
   case MVT::i8:
     if (High) {
       switch (Reg) {
-      default: return getX86SubSuperRegister(Reg, MVT::i64);
+      default: return getX86SubSuperRegisterOrZero(Reg, MVT::i64);
       case X86::SIL: case X86::SI: case X86::ESI: case X86::RSI:
         return X86::SI;
       case X86::DIL: case X86::DI: case X86::EDI: case X86::RDI: