we should eventually add -march=atom and the new atom movbe instruction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72387 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/X86/README.txt b/lib/Target/X86/README.txt
index a2cf079e0b162a450346e6befd71ef0328d277ee..191288889755a19c0a173d7d76b91cd0b5a1f5ca 100644 (file)
--- a/lib/Target/X86/README.txt
+++ b/lib/Target/X86/README.txt
@@ -2,6 +2,8 @@
 // Random ideas for the X86 backend.
 //===---------------------------------------------------------------------===//
 
+We should add support for the "movbe" instruction, which does a byte-swapping
+copy (3-addr bswap + memory support?)  This is available on Atom processors.
 
 //===---------------------------------------------------------------------===//