From 09d756a7e0b263154d410f9a52dd54850d576427 Mon Sep 17 00:00:00 2001 From: Michael Kuperstein Date: Tue, 24 Feb 2015 16:13:16 +0000 Subject: [PATCH] [x32] Mark RBX as reserved when EBX is the base pointer. This should have gone into r230334. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230339 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Target/X86/X86RegisterInfo.cpp | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/lib/Target/X86/X86RegisterInfo.cpp b/lib/Target/X86/X86RegisterInfo.cpp index 7f00fd3e4c3..cab7ce801db 100644 --- a/lib/Target/X86/X86RegisterInfo.cpp +++ b/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); } -- 2.34.1