Changes in directory llvm/lib/Target/X86:
README.txt updated: 1.77 -> 1.78
---
Log message:
Another entry about shuffles.
---
Diffs of the changes: (+6 -0)
README.txt | 6 ++++++
1 files changed, 6 insertions(+)
Index: llvm/lib/Target/X86/README.txt
diff -u llvm/lib/Target/X86/README.txt:1.77 llvm/lib/Target/X86/README.txt:1.78
--- llvm/lib/Target/X86/README.txt:1.77 Tue Mar 28 00:55:45 2006
+++ llvm/lib/Target/X86/README.txt Tue Mar 28 21:03:46 2006
@@ -667,3 +667,9 @@
Use movhps to update upper 64-bits of a v4sf value. Also movlps on lower half
of a v4sf value.
+
+//===---------------------------------------------------------------------===//
+
+Better codegen for vector_shuffles like this { x, 0, 0, 0 } or { x, 0, x, 0}.
+Perhaps use pxor / xorp* to clear a XMM register first?
+
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