From 2bc6c57eb24f71131ebfe631e89522eb5ce008e7 Mon Sep 17 00:00:00 2001 From: Dominic Symes Date: Thu, 30 Nov 2023 10:56:33 +0000 Subject: Main Conformance: Update SIGMOID, TANH precision Change SIGMOID, TANH precision to allow an implementation using EXP. The bound is based on the EXP bound. Change-Id: I19582b31753ac614a1064a1b81961dbc54acf823 Signed-off-by: Dominic Symes --- chapters/introduction.adoc | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/chapters/introduction.adoc b/chapters/introduction.adoc index 4b0696c..48b169d 100644 --- a/chapters/introduction.adoc +++ b/chapters/introduction.adoc @@ -261,7 +261,7 @@ Otherwise:the result must be within 1 ulp of the mathematical result. Otherwise if the input is a zero the output must be an infinity of the same sign. + Otherwise the result must be within 2 ulp of the mathematical result. -| <>, <>, <>, <> +| <>, <> | If the input to LOG is less than zero then the result must be a NaN. + If the result overflows the output must be an infinity of the correct sign. + If the result underflows the output must be a zero of the correct sign. + @@ -279,6 +279,12 @@ Let `out_ref` be the result of the fp64_t reference implementation of `pow(x,y)` Let `err_bnd = abs(out_ref) * exp2(-normal_frac) * (1+abs(log(abs(x))*y))` + Then `tosa_reference_check_fp_bnd(out_imp, out_ref, err_bnd)` must be true +| <>, <> +| Let `x` be an input element and `out_imp` the implementation output. + +Let `out_ref` be the result of the fp64_t reference implementation. + +Let `err_bnd = abs(out_ref) * exp2(-normal_frac) * (2 * (1+abs(x)))` + +Then `tosa_reference_check_fp_bnd(out_imp, out_ref, err_bnd)` must be true + | <> | Each output can be expressed as a dot product of an input vector with a vector of ones. + This dot product must meet the <> -- cgit v1.2.1