From 1d84f0a461d13a89de9d9424535b3a0079aa14eb Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Mon, 16 Dec 2002 17:42:40 +0000
Subject: Keep the stack frame aligned.

llvm-svn: 5081
---
 llvm/lib/CodeGen/RegAllocSimple.cpp | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'llvm/lib')

diff --git a/llvm/lib/CodeGen/RegAllocSimple.cpp b/llvm/lib/CodeGen/RegAllocSimple.cpp
index 9ed6ad98953..925915ee771 100644
--- a/llvm/lib/CodeGen/RegAllocSimple.cpp
+++ b/llvm/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);
 
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