update a note

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25918 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/PowerPC/README.txt b/lib/Target/PowerPC/README.txt
index 468d974a278fe71c27237ab8a3b58394fd64b4ff..7afcc7471af7d90baa7c6bbb24412790f46f5e48 100644 (file)
--- a/lib/Target/PowerPC/README.txt
+++ b/lib/Target/PowerPC/README.txt
@@ -86,6 +86,9 @@ It would be better to materialize .CPI_X into a register, then use immediates
 off of the register to avoid the lis's.  This is even more important in PIC 
 mode.
 
 off of the register to avoid the lis's.  This is even more important in PIC 
 mode.
 

+Note that this (and the static variable version) is discussed here for GCC:
+http://gcc.gnu.org/ml/gcc-patches/2006-02/msg00133.html
+

 ===-------------------------------------------------------------------------===
 
 Implement Newton-Rhapson method for improving estimate instructions to the
 ===-------------------------------------------------------------------------===
 
 Implement Newton-Rhapson method for improving estimate instructions to the