RDCYCLE		X5				// f32200c0
	RDTIME		X5				// f32210c0
	RDINSTRET	X5				// f32220c0

	// 11.5: Single-Precision Load and Store Instructions
	FLW	(X5), F0				// 07a00200
	FLW	4(X5), F0				// 07a04200
	FSW	F0, (X5)				// 27a00200
	FSW	F0, 4(X5)				// 27a20200

	// 11.6: Single-Precision Floating-Point Computational Instructions
	FADDS	F1, F0, F2				// 53011000
	FSUBS	F1, F0, F2				// 53011008

					t.Errorf("Equal(%d, %d, %d) = false", len, x, y)
				}
			}
		}
	}
}

// make sure Equal returns false for minimally different strings. The data
// is all zeros except for a single one in one location.
func TestNotEqual(t *testing.T) {
	var size = 128
	if testing.Short() {
		size = 32
	}
	a := make([]byte, size)
	b := make([]byte, size)

	for len := 0; len <= size; len++ {

The build time overhead to building with [Profile Guided Optimization](/doc/pgo) has been reduced significantly.
Previously, large builds could see 100%+ build time increase from enabling PGO.
In Go 1.23, overhead should be in the single digit percentages.

## Assembler {#assembler}

			// A leftover wisp of a #include/#define/etc,
			// to let us know that p.sawCode should be true now.
			// Otherwise ignored.
			continue
		}
		return tok
	}
}

// line consumes a single assembly line from p.lex of the form
//
//	{label:} WORD[.cond] [ arg {, arg} ] (';' | '\n')
//
// It adds any labels to p.pendingLabels and returns the word, cond,

	FMOVD	1(R1), F2 // 221040fc
	FMOVD	8(R1), F2 // 220440fd
	FMOVQ	32(R5), F2 // a208c03d
	FMOVQ	65520(R10), F10 // 4afdff3d
	FMOVQ	64(RSP), F11    // eb13c03d

// medium offsets that either fit a single instruction or can use add+ldr/str
	MOVD -4095(R17), R3                        // 3bfe3fd1630340f9
	MOVD -391(R17), R3                         // 3b1e06d1630340f9
	MOVD -257(R17), R3                         // 3b0604d1630340f9

pkg syscall (darwin-arm64), const F_SETSIZE = 43
pkg syscall (darwin-arm64), const F_SETSIZE ideal-int
pkg syscall (darwin-arm64), const F_SINGLE_WRITER = 76
pkg syscall (darwin-arm64), const F_SINGLE_WRITER ideal-int
pkg syscall (darwin-arm64), const F_THAW_FS = 54
pkg syscall (darwin-arm64), const F_THAW_FS ideal-int
pkg syscall (darwin-arm64), const F_TRANSCODEKEY = 75

	}
	bits, ok := parseARM64Suffix(cond)
	if !ok {
		return false
	}
	prog.Scond = bits
	return true
}

// parseARM64Suffix parses the suffix attached to an ARM64 instruction.
// The input is a single string consisting of period-separated condition
// codes, such as ".P.W". An initial period is ignored.
func parseARM64Suffix(cond string) (uint8, bool) {
	if cond == "" {
		return 0, true
	}

package lex

import (
	"go/build/constraint"
	"io"
	"os"
	"strings"
	"text/scanner"
	"unicode"

	"cmd/asm/internal/flags"
	"cmd/internal/objabi"
	"cmd/internal/src"
)

// A Tokenizer is a simple wrapping of text/scanner.Scanner, configured
// for our purposes and made a TokenReader. It forms the lowest level,
// turning text from readers into tokens.
type Tokenizer struct {
	tok  ScanToken
	s    *scanner.Scanner

// Copyright 2009 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 bytes

// Simple byte buffer for marshaling data.

import (
	"errors"
	"io"
	"unicode/utf8"
)

// smallBufferSize is an initial allocation minimal capacity.
const smallBufferSize = 64

any 6.out that imports the first two files.

The stanza

	// #include <gmp.h>
	import "C"

is a signal to cgo.  The doc comment on the import of "C" provides
additional context for the C file.  Here it is just a single #include
but it could contain arbitrary C definitions to be imported and used.

Cgo recognizes any use of a qualified identifier C.xxx and uses gcc to
find the definition of xxx.  If xxx is a type, cgo replaces C.xxx with