Revert "math: add Compare and Compare32"

This reverts CL 459435.

Reason for revert: Tests failing on MIPS.

Change-Id: I9017bf718ba938df6d6766041555034d55d90b8a
Reviewed-on: https://go-review.googlesource.com/c/go/+/467255
Run-TryBot: Than McIntosh <thanm@google.com>
Reviewed-by: Than McIntosh <thanm@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Akhil Indurti <aindurti@gmail.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>

1 files changed, 0 insertions, 53 deletions

diff --git a/src/math/compare.go b/src/math/compare.go
deleted file mode 100644
index 3798110072..0000000000
--- a/src/math/compare.go
+++ /dev/null
@@ -1,53 +0,0 @@
-// Copyright 2023 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package math
-
-func sign[I int32 | int64](a, b I) int {
-	if a < b {
-		return -1
-	}
-	if a > b {
-		return 1
-	}
-	return 0
-}
-
-// Compare compares a and b such that
-// -NaN is ordered before any other value,
-// +NaN is ordered after any other value,
-// and -0 is ordered before +0.
-// In other words, it defines a total order over floats
-// (according to the total-ordering predicate in IEEE-754, section 5.10).
-// It returns 0 if a == b, -1 if a < b, and +1 if a > b.
-func Compare(a, b float64) int {
-	// Perform a bitwise comparison (a < b) by casting the float64s into an int64s.
-	x := int64(Float64bits(a))
-	y := int64(Float64bits(b))
-
-	// If a and b are both negative, flip the comparison so that we check a > b.
-	if x < 0 && y < 0 {
-		return sign(y, x)
-	}
-	return sign(x, y)
-}
-
-// Compare32 compares a and b such that
-// -NaN is ordered before any other value,
-// +NaN is ordered after any other value,
-// and -0 is ordered before +0.
-// In other words, it defines a total order over floats
-// (according to the total-ordering predicate in IEEE-754, section 5.10).
-// It returns 0 if a == b, -1 if a < b, and +1 if a > b.
-func Compare32(a, b float32) int {
-	// Perform a bitwise comparison (a < b) by casting the float32s into an int32s.
-	x := int32(Float32bits(a))
-	y := int32(Float32bits(b))
-
-	// If a and b are both negative, flip the comparison so that we check a > b.
-	if x < 0 && y < 0 {
-		return sign(y, x)
-	}
-	return sign(x, y)
-}