[PATCH] Thumb2: Modify codegen for memcpy intrinsic to prefer LDM/STM.

[John Brawn]

One minor nitpick, otherwise looks good to me.


================
Comment at: lib/Target/ARM/Thumb2SizeReduction.cpp:128
@@ -127,2 +127,3 @@
   { ARM::t2LDMIA_UPD,ARM::tLDMIA_UPD,ARM::tPOP,0,   0,   1,   1,  1,1, 0,1,0 },
   // ARM::t2STM (with no basereg writeback) has no Thumb1 equivalent
+  { ARM::t2STMIA, ARM::tSTMIA_UPD, 0,          0,   0,   1,   1,  1,1, 0,1,0 },
----------------
This comment should be updated - tSTMIA_UPD isn't the equivalent of t2STMIA, but the difference is correctly handled elsewhere.

http://reviews.llvm.org/D9508

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