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* [Sparc] Use synthetic instruction clr to zero register instead of sethiDaniel Cederman2018-04-201-0/+46
Using `clr reg`/`mov %g0, reg`/`or %g0, %g0, reg` to zero a register looks much better than `sethi 0, reg`. Reviewers: jyknight, venkatra Reviewed By: jyknight Subscribers: eraman, fedor.sergeev, jrtc27, llvm-commits Differential Revision: https://reviews.llvm.org/D45810 llvm-svn: 330396
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