From: Brendan Hansen <brendan.f.hansen@gmail.com>
Date: Tue, 14 Mar 2023 16:17:54 +0000 (-0500)
Subject: added: math.ilog2
X-Git-Url: https://git.brendanfh.com/?a=commitdiff_plain;h=16bfc37729996d4024c7e95da57dba9ba677fc40;p=onyx.git

added: math.ilog2
---

diff --git a/core/math/math.onyx b/core/math/math.onyx
index f6af60ad..1ff7dc05 100644
--- a/core/math/math.onyx
+++ b/core/math/math.onyx
@@ -235,6 +235,9 @@ log :: (a: $T, base: $R) -> T {
     return ~~(ln(cast(f32) a) / ln(cast(f32) base));
 }
 
+ilog2 :: (a: u64) -> u64 {
+    return 63 - wasm.clz_i64(a);
+}