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archived-llvm/test/CodeGen/SystemZ
Ulrich Weigand 05fbbee99e [SystemZ] Implement conditional returns
Return is now considered a predicable instruction, and is converted
to a newly-added CondReturn (which maps to BCR to %r14) instruction by
the if conversion pass.

Also, fused compare-and-branch transform knows about conditional
returns, emitting the proper fused instructions for them.

This transform triggers on a *lot* of tests, hence the huge diffstat.
The changes are mostly jX to br %r14 -> bXr %r14.

Author: koriakin

Differential Revision: http://reviews.llvm.org/D17339



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265689 91177308-0d34-0410-b5e6-96231b3b80d8
2016-04-07 16:11:44 +00:00
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