Source file test/codegen/generics.go

     1  // asmcheck
     2  
     3  // Copyright 2025 The Go Authors. All rights reserved.
     4  // Use of this source code is governed by a BSD-style
     5  // license that can be found in the LICENSE file.
     6  
     7  package codegen
     8  
     9  import "cmp"
    10  
    11  func isNaN[T cmp.Ordered](x T) bool {
    12  	return x != x
    13  }
    14  
    15  func compare[T cmp.Ordered](x, y T) int {
    16  	// amd64:-"TESTB"
    17  	// arm64:-"MOVB"
    18  	xNaN := isNaN(x)
    19  	yNaN := isNaN(y)
    20  	if xNaN {
    21  		if yNaN {
    22  			return 0
    23  		}
    24  		return -1
    25  	}
    26  	if yNaN {
    27  		return +1
    28  	}
    29  	if x < y {
    30  		return -1
    31  	}
    32  	if x > y {
    33  		return +1
    34  	}
    35  	return 0
    36  }
    37  
    38  func usesCompare(a, b int) int {
    39  	return compare(a, b)
    40  }
    41  

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