From 05fb9637f670d6c71a340824d4d9cafb4f689a34 Mon Sep 17 00:00:00 2001
From: Lang Hames <lhames@gmail.com>
Date: Tue, 3 Nov 2009 23:52:08 +0000
Subject: The Indexes Patch.

This introduces a new pass, SlotIndexes, which is responsible for numbering
instructions for register allocation (and other clients). SlotIndexes numbering
is designed to match the existing scheme, so this patch should not cause any
changes in the generated code.

For consistency, and to avoid naming confusion, LiveIndex has been renamed
SlotIndex.

The processImplicitDefs method of the LiveIntervals analysis has been moved
into its own pass so that it can be run prior to SlotIndexes. This was
necessary to match the existing numbering scheme.

llvm-svn: 85979
---
 llvm/lib/CodeGen/StackSlotColoring.cpp | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'llvm/lib/CodeGen/StackSlotColoring.cpp')

diff --git a/llvm/lib/CodeGen/StackSlotColoring.cpp b/llvm/lib/CodeGen/StackSlotColoring.cpp
index eed2daa0a97..c299192b222 100644
--- a/llvm/lib/CodeGen/StackSlotColoring.cpp
+++ b/llvm/lib/CodeGen/StackSlotColoring.cpp
@@ -98,6 +98,8 @@ namespace {
     
     virtual void getAnalysisUsage(AnalysisUsage &AU) const {
       AU.setPreservesCFG();
+      AU.addRequired<SlotIndexes>();
+      AU.addPreserved<SlotIndexes>();
       AU.addRequired<LiveStacks>();
       AU.addRequired<VirtRegMap>();
       AU.addPreserved<VirtRegMap>();      
-- 
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