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* Eliminate more uses of llvm-as and llvm-dis.Dan Gohman2009-09-081-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81290 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't use INSERT_SUBREG to model anyext operations on x86-64, as itDan Gohman2009-08-261-1/+1
| | | | | | | | | leads to partial-register definitions. To help avoid redundant zero-extensions, also teach the h-register matching patterns that use movzbl to match anyext as well as zext. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80099 91177308-0d34-0410-b5e6-96231b3b80d8
* - More aggressively coalescing away copies whose source is defined by an ↵Evan Cheng2008-04-091-0/+24
implicit_def. - Added insert_subreg coalescing support. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49448 91177308-0d34-0410-b5e6-96231b3b80d8