From: Michael Kuperstein <michael.m.kuperstein@intel.com>
Date: Tue, 24 Feb 2015 16:13:16 +0000 (+0000)
Subject: [x32] Mark RBX as reserved when EBX is the base pointer.
X-Git-Tag: llvmorg-3.7.0-rc1~11042
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=d2f3b87812cfeebf3861766562429354c9c37749;p=platform%2Fupstream%2Fllvm.git

[x32] Mark RBX as reserved when EBX is the base pointer.

This should have gone into r230334.

llvm-svn: 230339
---

diff --git a/llvm/lib/Target/X86/X86RegisterInfo.cpp b/llvm/lib/Target/X86/X86RegisterInfo.cpp
index 7f00fd3..cab7ce8 100644
--- a/llvm/lib/Target/X86/X86RegisterInfo.cpp
+++ b/llvm/lib/Target/X86/X86RegisterInfo.cpp
@@ -355,7 +355,9 @@ BitVector X86RegisterInfo::getReservedRegs(const MachineFunction &MF) const {
         "Stack realignment in presence of dynamic allocas is not supported with"
         "this calling convention.");
 
-    for (MCSubRegIterator I(getBaseRegister(), this, /*IncludeSelf=*/true);
+    unsigned BasePtr = getX86SubSuperRegister(getBaseRegister(), MVT::i64,
+                                              false);
+    for (MCSubRegIterator I(BasePtr, this, /*IncludeSelf=*/true);
          I.isValid(); ++I)
       Reserved.set(*I);
   }