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

[Chris Lattner]

Changes in directory llvm/lib/Target/PowerPC:

README.txt updated: 1.79 -> 1.80
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Log message:

add a note


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Diffs of the changes:  (+10 -0)

 README.txt |   10 ++++++++++
 1 files changed, 10 insertions(+)


Index: llvm/lib/Target/PowerPC/README.txt
diff -u llvm/lib/Target/PowerPC/README.txt:1.79 llvm/lib/Target/PowerPC/README.txt:1.80
--- llvm/lib/Target/PowerPC/README.txt:1.79	Tue Mar 21 23:33:23 2006
+++ llvm/lib/Target/PowerPC/README.txt	Thu Mar 23 15:28:44 2006
@@ -569,3 +569,13 @@
 lwz has a single use.  Since LWA is cracked anyway, this would be a codesize
 win only.
 
+===-------------------------------------------------------------------------===
+
+  Consider this:
+  v4f32 Vector;
+  v4f32 Vector2 = { Vector.X, Vector.X, Vector.X, Vector.X };
+
+Since we know that "Vector" is 16-byte aligned and we know the element offset 
+of ".X", we should change the load into a lve*x instruction, instead of doing
+a load/store/lve*x sequence.
+