BA (unconditional branch) instruction has reversed meaning of annulling bit. In few Hotspot places we have code which execute NOP instruction because we use incorrect annulling, like next:
__ br(Assembler::always, false, Assembler::pt, L_label);
__ delayed()->nop();
and
__ ba(L_label);
__ delayed()->nop();
__ br(Assembler::always, false, Assembler::pt, L_label);
__ delayed()->nop();
and
__ ba(L_label);
__ delayed()->nop();
- duplicates
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JDK-6403974 Agressively fill SPARC delay slots
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- Closed
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- relates to
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- Closed
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