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src/hotspot/share/opto/superword.cpp

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rev 60615 : 8231441: Initial SVE backend support
Reviewed-by: adinn, pli
Contributed-by: joshua.zhu@arm.com, yang.zhang@arm.com, ningsheng.jian@arm.com

*** 92,103 **** } //------------------------------transform_loop--------------------------- void SuperWord::transform_loop(IdealLoopTree* lpt, bool do_optimization) { assert(UseSuperWord, "should be"); ! // Do vectors exist on this architecture? ! if (Matcher::vector_width_in_bytes(T_BYTE) < 2) return; assert(lpt->_head->is_CountedLoop(), "must be"); CountedLoopNode *cl = lpt->_head->as_CountedLoop(); if (!cl->is_valid_counted_loop()) return; // skip malformed counted loop --- 92,106 ---- } //------------------------------transform_loop--------------------------- void SuperWord::transform_loop(IdealLoopTree* lpt, bool do_optimization) { assert(UseSuperWord, "should be"); ! // SuperWord only works with power of two vector sizes. ! int vector_width = Matcher::vector_width_in_bytes(T_BYTE); ! if (vector_width < 2 || !is_power_of_2(vector_width)) { ! return; ! } assert(lpt->_head->is_CountedLoop(), "must be"); CountedLoopNode *cl = lpt->_head->as_CountedLoop(); if (!cl->is_valid_counted_loop()) return; // skip malformed counted loop
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