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* As Dan pointed out, movzbl, movsbl, and friends are nicer than their aliasBill Wendling2011-04-141-1/+1
| | | | | | | (movzx/movsx) because they give more information. Revert that part of the patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129498 91177308-0d34-0410-b5e6-96231b3b80d8
* Have the X86 back-end emit the alias instead of what's being aliased. In mostBill Wendling2011-04-141-1/+1
| | | | | | | cases, it's much nicer and more informative reading the alias. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129497 91177308-0d34-0410-b5e6-96231b3b80d8
* Re-enable 91381 with fixes.Evan Cheng2009-12-161-1/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91489 91177308-0d34-0410-b5e6-96231b3b80d8
* Disable 91381 for now. It's miscompiling ARMISelDAG2DAG.cpp.Evan Cheng2009-12-151-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91405 91177308-0d34-0410-b5e6-96231b3b80d8
* Use sbb x, x to materialize carry bit in a GPR. The result is all one's or ↵Evan Cheng2009-12-151-0/+23
| | | | | | all zero's. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91381 91177308-0d34-0410-b5e6-96231b3b80d8
* Propagate zest through logical shift.Evan Cheng2009-12-151-0/+13
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91378 91177308-0d34-0410-b5e6-96231b3b80d8