[llvm-commits] CVS: llvm/lib/Target/PowerPC/README_ALTIVEC.txt
Chris Lattner
lattner at cs.uiuc.edu
Tue Mar 28 10:56:35 PST 2006
Changes in directory llvm/lib/Target/PowerPC:
README_ALTIVEC.txt updated: 1.4 -> 1.5
---
Log message:
add a note
---
Diffs of the changes: (+10 -0)
README_ALTIVEC.txt | 10 ++++++++++
1 files changed, 10 insertions(+)
Index: llvm/lib/Target/PowerPC/README_ALTIVEC.txt
diff -u llvm/lib/Target/PowerPC/README_ALTIVEC.txt:1.4 llvm/lib/Target/PowerPC/README_ALTIVEC.txt:1.5
--- llvm/lib/Target/PowerPC/README_ALTIVEC.txt:1.4 Mon Mar 27 22:15:58 2006
+++ llvm/lib/Target/PowerPC/README_ALTIVEC.txt Tue Mar 28 12:56:23 2006
@@ -134,4 +134,14 @@
2. Identical operations in different types are not getting CSE'd (e.g.
{ 0U, 0U, 0U, 0U } and {0.0, 0.0, 0.0, 0.0}.
+//===----------------------------------------------------------------------===//
+
+Two identical comparisons in predicate and nonpredicate form like this:
+
+a = vec_cmpb(x, y);
+b = vec_any_out(x, y);
+
+Should turn into one "." compare instruction, not a dot and "nondot" form.
+
+//===----------------------------------------------------------------------===//
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