From: Hal Finkel <hfinkel@anl.gov>
Date: Thu, 14 Mar 2013 18:38:31 +0000 (+0000)
Subject: Add a comment about overlapping PPC frame offsets
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ad92b4650575fcf8d305117e1e54f1d7e6ffb134;p=platform%2Fupstream%2Fllvm.git

Add a comment about overlapping PPC frame offsets

I don't think that it is otherwise clear how the overlapping offsets
are processed into distinct spill slots. Comment that this is done
in processFunctionBeforeFrameFinalized.

llvm-svn: 177094
---

diff --git a/llvm/lib/Target/PowerPC/PPCFrameLowering.h b/llvm/lib/Target/PowerPC/PPCFrameLowering.h
index d09e47f..a07c170 100644
--- a/llvm/lib/Target/PowerPC/PPCFrameLowering.h
+++ b/llvm/lib/Target/PowerPC/PPCFrameLowering.h
@@ -144,6 +144,9 @@ public:
       return 0;
     }
 
+    // Note that the offsets here overlap, but this is fixed up in
+    // processFunctionBeforeFrameFinalized.
+
     static const SpillSlot Offsets[] = {
       // Floating-point register save area offsets.
       {PPC::F31, -8},