From: Chris Lattner <sabre@nondot.org>
Date: Tue, 18 Oct 2005 22:14:06 +0000 (+0000)
Subject: Fix Generic/2005-10-18-ZeroSizeStackObject.ll by not requesting a zero
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=d222f6ab67472fa2b2e211172a11b43905aa9445;p=oota-llvm.git

Fix Generic/2005-10-18-ZeroSizeStackObject.ll by not requesting a zero
sized stack object if either the array size or the type size is zero.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23801 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index 6b0e2b2011b..72ee7501082 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -152,6 +152,7 @@ FunctionLoweringInfo::FunctionLoweringInfo(TargetLowering &tli,
         // TargetData.  It serves primarily to 8-byte align doubles for X86.
         if (Align < TySize && TySize <= 8) Align = TySize;
         TySize *= CUI->getValue();   // Get total allocated size.
+        if (TySize == 0) TySize = 1; // Don't create zero-sized stack objects.
         StaticAllocaMap[AI] =
           MF.getFrameInfo()->CreateStackObject((unsigned)TySize, Align);
       }