From a1f70b39fa5770356d928889eba46c71e4caa4ee Mon Sep 17 00:00:00 2001
From: Nico Weber <thakis@chromium.org>
Date: Mon, 29 Jan 2024 13:31:39 -0500
Subject: [PATCH] AK: Remove rsqrt()

At least on arm64, this isn't very preciese:
https://github.com/SerenityOS/serenity/issues/22739#issuecomment-1912909835

It is also now unused.
---
 AK/Math.h | 17 -----------------
 1 file changed, 17 deletions(-)

diff --git a/AK/Math.h b/AK/Math.h
index d063d5bc5c..99e839c6c0 100644
--- a/AK/Math.h
+++ b/AK/Math.h
@@ -502,23 +502,6 @@ constexpr T sqrt(T x)
 #endif
 }
 
-template<FloatingPoint T>
-constexpr T rsqrt(T x)
-{
-#if ARCH(AARCH64)
-    AARCH64_INSTRUCTION(frsqrte, x);
-#elif ARCH(X86_64)
-    if constexpr (IsSame<T, float>) {
-        float res;
-        asm("rsqrtss %1, %0"
-            : "=x"(res)
-            : "x"(x));
-        return res;
-    }
-#endif
-    return (T)1. / sqrt(x);
-}
-
 template<FloatingPoint T>
 constexpr T cbrt(T x)
 {