@W: BN132 :"e:\mywork\ip\releaseverify\v1.9.7.01\gowin_iir_filter_refdesign\ref_design\src\exp_iir.v":98:53:98:67|Removing instance din_2_0_0_2 because it is equivalent to instance din_2_0_0_0. To keep the instance, apply constraint syn_preserve=1 on the instance.
@W: BN132 :"e:\mywork\ip\releaseverify\v1.9.7.01\gowin_iir_filter_refdesign\ref_design\src\exp_iir.v":98:53:98:67|Removing instance din_2_0_0_4 because it is equivalent to instance din_2_0_0_0. To keep the instance, apply constraint syn_preserve=1 on the instance.
@W: BN132 :"e:\mywork\ip\releaseverify\v1.9.7.01\gowin_iir_filter_refdesign\ref_design\src\exp_iir.v":98:53:98:67|Removing instance din_2_0_0_6 because it is equivalent to instance din_2_0_0_0. To keep the instance, apply constraint syn_preserve=1 on the instance.
@W: BN132 :"e:\mywork\ip\releaseverify\v1.9.7.01\gowin_iir_filter_refdesign\ref_design\src\exp_iir.v":98:53:98:67|Removing instance din_2_0_0_8 because it is equivalent to instance din_2_0_0_0. To keep the instance, apply constraint syn_preserve=1 on the instance.
@W: BN132 :"e:\mywork\ip\releaseverify\v1.9.7.01\gowin_iir_filter_refdesign\ref_design\src\exp_iir.v":98:53:98:67|Removing instance din_2_0_0_10 because it is equivalent to instance din_2_0_0_0. To keep the instance, apply constraint syn_preserve=1 on the instance.
@W: BN132 :"e:\mywork\ip\releaseverify\v1.9.7.01\gowin_iir_filter_refdesign\ref_design\src\exp_iir.v":98:53:98:67|Removing instance din_2_0_0_12 because it is equivalent to instance din_2_0_0_0. To keep the instance, apply constraint syn_preserve=1 on the instance.
@W: BN132 :"e:\mywork\ip\releaseverify\v1.9.7.01\gowin_iir_filter_refdesign\ref_design\src\exp_iir.v":98:53:98:67|Removing instance din_2_0_0_14 because it is equivalent to instance din_2_0_0_0. To keep the instance, apply constraint syn_preserve=1 on the instance.
@W: BN132 :"e:\mywork\ip\releaseverify\v1.9.7.01\gowin_iir_filter_refdesign\ref_design\src\exp_iir.v":98:53:98:67|Removing instance din_2_0_0_16 because it is equivalent to instance din_2_0_0_0. To keep the instance, apply constraint syn_preserve=1 on the instance.
@W: BN132 :"e:\mywork\ip\releaseverify\v1.9.7.01\gowin_iir_filter_refdesign\ref_design\src\exp_iir.v":98:53:98:67|Removing instance din_2_0_0_18 because it is equivalent to instance din_2_0_0_0. To keep the instance, apply constraint syn_preserve=1 on the instance.
@W: BN132 :"e:\mywork\ip\releaseverify\v1.9.7.01\gowin_iir_filter_refdesign\ref_design\src\exp_iir.v":98:53:98:67|Removing instance din_2_0_0_20 because it is equivalent to instance din_2_0_0_0. To keep the instance, apply constraint syn_preserve=1 on the instance.
@W: BN132 :"e:\mywork\ip\releaseverify\v1.9.7.01\gowin_iir_filter_refdesign\ref_design\src\exp_iir.v":98:53:98:67|Removing instance din_2_0_0_22 because it is equivalent to instance din_2_0_0_0. To keep the instance, apply constraint syn_preserve=1 on the instance.
@W: BN132 :"e:\mywork\ip\releaseverify\v1.9.7.01\gowin_iir_filter_refdesign\ref_design\src\exp_iir.v":98:53:98:67|Removing instance din_2_0_0_24 because it is equivalent to instance din_2_0_0_0. To keep the instance, apply constraint syn_preserve=1 on the instance.
@W: BN132 :"e:\mywork\ip\releaseverify\v1.9.7.01\gowin_iir_filter_refdesign\ref_design\src\exp_iir.v":98:53:98:67|Removing instance din_2_0_0_26 because it is equivalent to instance din_2_0_0_0. To keep the instance, apply constraint syn_preserve=1 on the instance.
@W: BN132 :"e:\mywork\ip\releaseverify\v1.9.7.01\gowin_iir_filter_refdesign\ref_design\src\exp_iir.v":98:53:98:67|Removing instance din_2_0_0_28 because it is equivalent to instance din_2_0_0_0. To keep the instance, apply constraint syn_preserve=1 on the instance.
@W: BN132 :"e:\mywork\ip\releaseverify\v1.9.7.01\gowin_iir_filter_refdesign\ref_design\src\exp_iir.v":98:53:98:67|Removing instance din_2_0_0_30 because it is equivalent to instance din_2_0_0_0. To keep the instance, apply constraint syn_preserve=1 on the instance.
@W: BN132 :"e:\mywork\ip\releaseverify\v1.9.7.01\gowin_iir_filter_refdesign\ref_design\src\exp_iir.v":98:53:98:67|Removing instance din_2_0_0_32 because it is equivalent to instance din_2_0_0_0. To keep the instance, apply constraint syn_preserve=1 on the instance.
@W: BN132 :"e:\mywork\ip\releaseverify\v1.9.7.01\gowin_iir_filter_refdesign\ref_design\src\exp_iir.v":98:53:98:67|Removing instance din_2_0_0_34 because it is equivalent to instance din_2_0_0_0. To keep the instance, apply constraint syn_preserve=1 on the instance.
@W: MT420 |Found inferred clock exp_iir|SYM_CLK with period 6.67ns. Please declare a user-defined clock on port SYM_CLK.
