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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p style='background:white'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>Hi Tim, Jiangning and reviewers,<o:p></o:p></span></p><p style='background:white'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>This new patch contains:<o:p></o:p></span></p><p style='background:white'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>Implemented aarch64 vmul_lane intrinsics.<br>Implemented aarch64 vmulx_lane intrinsics,<br>Implemented aarch64 vmul_n_f64 intrinsic, mapping it to Neon scalar operation.<br>Implemented aarch64 vmul_lane_f64 and vmul_laneq_f64 intrinsics, mapping them to Neon scalar operation.<br>Added codegen patterns for scalar copy (DUP) with FP types.<br>Added Scalar Copy (DUP) MOV aliases.<o:p></o:p></span></p><p style='background:white'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>The implementation was straightforward. I was able to create IR patterns for most cases.<o:p></o:p></span></p><p style='background:white'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>But to force vmul_n_f64, vmul_lane_f64, vmul_laneq_f64 legacy intrinsics to map to Neon scalar operations I had to add an aarch64 IR intrinsic.<o:p></o:p></span></p><p style='background:white'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'><br>Otherwise the casting of result to float64x1_t might cause non-vector code to be generated and the Neon scalar instruction cannot be guaranteed.<o:p></o:p></span></p><p style='background:white'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>This has happened before with other Neon Scalar instructions and they were handled in similar way.<o:p></o:p></span></p><p style='background:white'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>Thanks,<o:p></o:p></span></p><p style='background:white'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>Ana.<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>