avoid the performance overhead of checking it every time. if godebug.Value("#ppc64aes") == "off" { supportsAES = false } impl.Register("aes", "POWER8", &supportsAES) } } // checkGenericIsExpect is called by the variable-time implementation to make // sure it is not used when hardware support is available. It shouldn't happen, // but this way it's more evidently correct. func checkGenericIsExpect() { if supportsAES { panic("crypto/aes: internal error: using generic implementation despite hardware support")...

d-border-color;\n    @include gradient-bg($custom-control-indicator-checked-bg);\n    @include box-shadow($custom-control-indicator-checked-box-shadow);\n  }\n\n  &:focus ~ .custom-control-label::before {\n    // the mixin is not used here to make sure there is feedback\n    @if $enable-shadows {\n      box-shadow: $input-box-shadow, $custom-control-indicator-focus-box-shadow;\n    } @else {\n      box-shadow: $custom-control-indicator-focus-box-shadow;\n    }\n  }\n\n  &:focus:not(:checked) ~ ....

avoid the performance overhead of checking it every time. if godebug.Value("#ppc64aes") == "off" { supportsAES = false } impl.Register("aes", "POWER8", &supportsAES) } } // checkGenericIsExpect is called by the variable-time implementation to make // sure it is not used when hardware support is available. It shouldn't happen, // but this way it's more evidently correct. func checkGenericIsExpect() { if supportsAES { panic("crypto/aes: internal error: using generic implementation despite hardware support")...