[llvm-commits] CVS: llvm/lib/Target/PowerPC/README.txt

[Chris Lattner]

Changes in directory llvm/lib/Target/PowerPC:

README.txt updated: 1.83 -> 1.84
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Log message:

add a note


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Diffs of the changes:  (+9 -0)

 README.txt |    9 +++++++++
 1 files changed, 9 insertions(+)


Index: llvm/lib/Target/PowerPC/README.txt
diff -u llvm/lib/Target/PowerPC/README.txt:1.83 llvm/lib/Target/PowerPC/README.txt:1.84
--- llvm/lib/Target/PowerPC/README.txt:1.83	Mon Mar 27 01:04:16 2006
+++ llvm/lib/Target/PowerPC/README.txt	Sun Apr  2 01:20:00 2006
@@ -551,3 +551,12 @@
 
 ===-------------------------------------------------------------------------===
 
+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.
+
+===-------------------------------------------------------------------------===