SLP/TTI do not know about the cost estimation for addsub pattern, supported by X86. Previously the support for pattern detection was added (seeTTI::isLegalAltInstr), but the cost still did not estimated properly.
SLP/TTI do not know about the cost estimation for addsub pattern, supported by X86. Previously the support for pattern detection was added (seeTTI::isLegalAltInstr), but the cost still did not estimated properly.