From: Jim Grosbach <grosbach@apple.com>
Date: Wed, 4 Nov 2009 22:41:51 +0000 (+0000)
Subject: If a function has no stack frame at all, dynamic realignment isn't necessary.
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=6db06a0866cd36fec05e6d9afb357ce8efb575e9;p=oota-llvm.git

If a function has no stack frame at all, dynamic realignment isn't necessary.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86057 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/ARM/ARMBaseRegisterInfo.cpp b/lib/Target/ARM/ARMBaseRegisterInfo.cpp
index 7dd21ecb045..3e5f4a2ed8c 100644
--- a/lib/Target/ARM/ARMBaseRegisterInfo.cpp
+++ b/lib/Target/ARM/ARMBaseRegisterInfo.cpp
@@ -514,6 +514,7 @@ needsStackRealignment(const MachineFunction &MF) const {
   unsigned StackAlign = MF.getTarget().getFrameInfo()->getStackAlignment();
   return (RealignStack &&
           !AFI->isThumb1OnlyFunction() &&
+          AFI->hasStackFrame() &&
           (MFI->getMaxAlignment() > StackAlign) &&
           !MFI->hasVarSizedObjects());
 }