Manman Ren 127eea87d6 X86 Peephole: fold loads to the source register operand if possible.
Add more comments and use early returns to reduce nesting in isLoadFoldable.
Also disable folding for V_SET0 to avoid introducing a const pool entry and
a const pool load.

rdar://10554090 and rdar://11873276


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161207 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-02 19:37:32 +00:00
..
2012-07-19 04:50:12 +00:00
2012-07-25 17:18:59 +00:00
2012-07-24 21:40:17 +00:00
2012-07-19 00:01:00 +00:00
2012-06-27 17:10:33 +00:00
2012-06-23 12:14:23 +00:00
2011-12-01 08:00:17 +00:00
2012-01-26 00:06:44 +00:00
2012-05-16 22:08:58 +00:00