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This commit enables more unrolling for SystemZ by implementing the SystemZTargetTransformInfo::getUnrollingPreferences() method. It has been found that it is better to only unroll moderately, so the DefaultUnrollRuntimeCount has been moved into UnrollingPreferences in order to set this to a lower value for SystemZ (4). Reviewers: Evgeny Stupachenko, Ulrich Weigand. https://reviews.llvm.org/D24451 llvm-svn: 282570 |
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llvm-c |