From 220d2b89d69b7f78b6baac357b857475d53f6407 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Sun, 2 Apr 2006 07:20:00 +0000
Subject: [PATCH] add a note

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27360 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/PowerPC/README.txt | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/lib/Target/PowerPC/README.txt b/lib/Target/PowerPC/README.txt
index 14a0bc124ed..e29dd52e282 100644
--- a/lib/Target/PowerPC/README.txt
+++ b/lib/Target/PowerPC/README.txt
@@ -551,3 +551,12 @@ void func(unsigned int *ret, float dx, float dy, float dz, float dw) {
 
 ===-------------------------------------------------------------------------===
 
+extract_vector_elt of an arbitrary constant vector can be done with the 
+following instructions:
+
+vTemp = vec_splat(v0,2);    // 2 is the element the src is in.
+vec_ste(&destloc,0,vTemp);
+
+We can do an arbitrary non-constant value by using lvsr/perm/ste.
+
+===-------------------------------------------------------------------------===