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pan/bi: Use the computed scale for fexp NaN propagation 

This makes pow(NaN, x) return NaN rather than 1.0.

Fixes: 499397700c ("pan/bi: Don't lower fpow")
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/5189
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/12269>
This commit is contained in:
Icecream95 2021-08-08 20:57:30 +12:00 committed by Marge Bot
parent 84d2e53789
commit ee2bb57f1e
1 changed files with 2 additions and 2 deletions
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4
src/panfrost/bifrost/bifrost_compile.c
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@ -1514,8 +1514,8 @@ bi_fexp_32(bi_builder *b, bi_index dst, bi_index s0, bi_index log2_base)
bi_index fixed_pt = bi_f32_to_s32(b, scale, BI_ROUND_NONE);
/* Compute the result for the fixed-point input, but pass along
* the original input for correct NaN propagation */
bi_fexp_f32_to(b, dst, fixed_pt, s0);
* the floating-point scale for correct NaN propagation */
bi_fexp_f32_to(b, dst, fixed_pt, scale);
}
static void