From: Chris Lattner <sabre@nondot.org>
Date: Mon, 16 Dec 2002 17:42:40 +0000 (+0000)
Subject: Keep the stack frame aligned.
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=69c198863db1daccb2c80c2122c335a169d6b573;p=oota-llvm.git

Keep the stack frame aligned.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5081 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/RegAllocSimple.cpp b/lib/CodeGen/RegAllocSimple.cpp
index 9ed6ad98953..925915ee771 100644
--- a/lib/CodeGen/RegAllocSimple.cpp
+++ b/lib/CodeGen/RegAllocSimple.cpp
@@ -324,6 +324,10 @@ bool RegAllocSimple::runOnMachineFunction(MachineFunction &Fn) {
        MBB != MBBe; ++MBB)
     AllocateBasicBlock(*MBB);
 
+  // Round stack allocation up to a nice alignment to keep the stack aligned
+  // FIXME: This is X86 specific!  Move to frame manager
+  NumBytesAllocated = (NumBytesAllocated + 3) & ~3;
+
   // Add prologue to the function...
   RegInfo->emitPrologue(Fn, NumBytesAllocated);