X86 MMX: optimize transfer from mmx to i32
authorManman Ren <mren@apple.com>
Tue, 30 Oct 2012 22:15:38 +0000 (22:15 +0000)
committerManman Ren <mren@apple.com>
Tue, 30 Oct 2012 22:15:38 +0000 (22:15 +0000)
commit4c74a956b2621bb7bb1df0b2f7571060eb095464
treeb3bc0ee117a8be8e88367fb60d45ced867132a4d
parenta368b89f2842530d07c0ac8e3b533882e165f197
X86 MMX: optimize transfer from mmx to i32
We used to generate a store (movq) + a load.
Now we use movd.

rdar://9946746

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167056 91177308-0d34-0410-b5e6-96231b3b80d8
lib/Target/X86/X86ISelLowering.cpp
lib/Target/X86/X86ISelLowering.h
lib/Target/X86/X86InstrMMX.td
test/CodeGen/X86/mmx-builtins.ll