From: Martin Möhrmann Date: Mon, 3 Apr 2017 20:38:09 +0000 (+0200) Subject: internal/cpu: new package to detect cpu features X-Git-Tag: go1.9beta1~285 X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=69972aea74de6a0397a05281475d1ca006da7bb0;p=gostls13.git internal/cpu: new package to detect cpu features Implements detection of x86 cpu features that are used in the go standard library. Changes all standard library packages to use the new cpu package instead of using runtime internal variables to check x86 cpu features. Updates: #15403 Change-Id: I2999a10cb4d9ec4863ffbed72f4e021a1dbc4bb9 Reviewed-on: https://go-review.googlesource.com/41476 Reviewed-by: Brad Fitzpatrick Reviewed-by: Keith Randall Run-TryBot: Brad Fitzpatrick TryBot-Result: Gobot Gobot --- diff --git a/src/bytes/bytes_amd64.go b/src/bytes/bytes_amd64.go index e68a3920d0..77d5970152 100644 --- a/src/bytes/bytes_amd64.go +++ b/src/bytes/bytes_amd64.go @@ -4,19 +4,19 @@ package bytes +import "internal/cpu" + //go:noescape // indexShortStr returns the index of the first instance of c in s, or -1 if c is not present in s. // indexShortStr requires 2 <= len(c) <= shortStringLen -func indexShortStr(s, c []byte) int // ../runtime/asm_$GOARCH.s -func supportAVX2() bool // ../runtime/asm_$GOARCH.s -func supportPOPCNT() bool // ../runtime/asm_$GOARCH.s -func countByte(s []byte, c byte) int // ../runtime/asm_$GOARCH.s +func indexShortStr(s, c []byte) int // ../runtime/asm_amd64.s +func countByte(s []byte, c byte) int // ../runtime/asm_amd64.s var shortStringLen int func init() { - if supportAVX2() { + if cpu.X86.HasAVX2 { shortStringLen = 63 } else { shortStringLen = 31 @@ -99,7 +99,7 @@ func Index(s, sep []byte) int { // Count counts the number of non-overlapping instances of sep in s. // If sep is an empty slice, Count returns 1 + the number of Unicode code points in s. func Count(s, sep []byte) int { - if len(sep) == 1 && supportPOPCNT() { + if len(sep) == 1 && cpu.X86.HasPOPCNT { return countByte(s, sep[0]) } return countGeneric(s, sep) diff --git a/src/cmd/dist/deps.go b/src/cmd/dist/deps.go index 158157eac0..1b106d19cf 100644 --- a/src/cmd/dist/deps.go +++ b/src/cmd/dist/deps.go @@ -3,56 +3,57 @@ package main var builddeps = map[string][]string{ - "bufio": {"bytes", "errors", "internal/race", "io", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sync", "sync/atomic", "unicode", "unicode/utf8"}, - "bytes": {"errors", "internal/race", "io", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sync", "sync/atomic", "unicode", "unicode/utf8"}, - "cmd/go/internal/base": {"bufio", "bytes", "cmd/go/internal/cfg", "cmd/go/internal/str", "context", "errors", "flag", "fmt", "go/ast", "go/build", "go/doc", "go/parser", "go/scanner", "go/token", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "io/ioutil", "log", "math", "net/url", "os", "os/exec", "os/signal", "path", "path/filepath", "reflect", "regexp", "regexp/syntax", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "text/template", "text/template/parse", "time", "unicode", "unicode/utf16", "unicode/utf8"}, - "cmd/go/internal/bug": {"bufio", "bytes", "cmd/go/internal/base", "cmd/go/internal/buildid", "cmd/go/internal/cfg", "cmd/go/internal/envcmd", "cmd/go/internal/load", "cmd/go/internal/str", "cmd/go/internal/web", "cmd/go/internal/work", "compress/flate", "compress/zlib", "container/heap", "context", "crypto", "crypto/sha1", "debug/dwarf", "debug/elf", "debug/macho", "encoding", "encoding/base64", "encoding/binary", "encoding/json", "errors", "flag", "fmt", "go/ast", "go/build", "go/doc", "go/parser", "go/scanner", "go/token", "hash", "hash/adler32", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "io/ioutil", "log", "math", "math/bits", "net/url", "os", "os/exec", "os/signal", "path", "path/filepath", "reflect", "regexp", "regexp/syntax", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "text/template", "text/template/parse", "time", "unicode", "unicode/utf16", "unicode/utf8"}, - "cmd/go/internal/buildid": {"bufio", "bytes", "cmd/go/internal/cfg", "compress/flate", "compress/zlib", "debug/dwarf", "debug/elf", "debug/macho", "encoding/binary", "errors", "fmt", "go/ast", "go/build", "go/doc", "go/parser", "go/scanner", "go/token", "hash", "hash/adler32", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "io/ioutil", "log", "math", "math/bits", "net/url", "os", "path", "path/filepath", "reflect", "regexp", "regexp/syntax", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "text/template", "text/template/parse", "time", "unicode", "unicode/utf16", "unicode/utf8"}, - "cmd/go/internal/cfg": {"bufio", "bytes", "errors", "fmt", "go/ast", "go/build", "go/doc", "go/parser", "go/scanner", "go/token", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "io/ioutil", "log", "math", "net/url", "os", "path", "path/filepath", "reflect", "regexp", "regexp/syntax", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "text/template", "text/template/parse", "time", "unicode", "unicode/utf16", "unicode/utf8"}, - "cmd/go/internal/clean": {"bufio", "bytes", "cmd/go/internal/base", "cmd/go/internal/buildid", "cmd/go/internal/cfg", "cmd/go/internal/load", "cmd/go/internal/str", "cmd/go/internal/work", "compress/flate", "compress/zlib", "container/heap", "context", "crypto", "crypto/sha1", "debug/dwarf", "debug/elf", "debug/macho", "encoding/binary", "errors", "flag", "fmt", "go/ast", "go/build", "go/doc", "go/parser", "go/scanner", "go/token", "hash", "hash/adler32", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "io/ioutil", "log", "math", "math/bits", "net/url", "os", "os/exec", "os/signal", "path", "path/filepath", "reflect", "regexp", "regexp/syntax", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "text/template", "text/template/parse", "time", "unicode", "unicode/utf16", "unicode/utf8"}, - "cmd/go/internal/doc": {"bufio", "bytes", "cmd/go/internal/base", "cmd/go/internal/cfg", "cmd/go/internal/str", "context", "errors", "flag", "fmt", "go/ast", "go/build", "go/doc", "go/parser", "go/scanner", "go/token", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "io/ioutil", "log", "math", "net/url", "os", "os/exec", "os/signal", "path", "path/filepath", "reflect", "regexp", "regexp/syntax", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "text/template", "text/template/parse", "time", "unicode", "unicode/utf16", "unicode/utf8"}, - "cmd/go/internal/envcmd": {"bufio", "bytes", "cmd/go/internal/base", "cmd/go/internal/buildid", "cmd/go/internal/cfg", "cmd/go/internal/load", "cmd/go/internal/str", "cmd/go/internal/work", "compress/flate", "compress/zlib", "container/heap", "context", "crypto", "crypto/sha1", "debug/dwarf", "debug/elf", "debug/macho", "encoding", "encoding/base64", "encoding/binary", "encoding/json", "errors", "flag", "fmt", "go/ast", "go/build", "go/doc", "go/parser", "go/scanner", "go/token", "hash", "hash/adler32", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "io/ioutil", "log", "math", "math/bits", "net/url", "os", "os/exec", "os/signal", "path", "path/filepath", "reflect", "regexp", "regexp/syntax", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "text/template", "text/template/parse", "time", "unicode", "unicode/utf16", "unicode/utf8"}, - "cmd/go/internal/fix": {"bufio", "bytes", "cmd/go/internal/base", "cmd/go/internal/buildid", "cmd/go/internal/cfg", "cmd/go/internal/load", "cmd/go/internal/str", "compress/flate", "compress/zlib", "context", "crypto", "crypto/sha1", "debug/dwarf", "debug/elf", "debug/macho", "encoding/binary", "errors", "flag", "fmt", "go/ast", "go/build", "go/doc", "go/parser", "go/scanner", "go/token", "hash", "hash/adler32", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "io/ioutil", "log", "math", "math/bits", "net/url", "os", "os/exec", "os/signal", "path", "path/filepath", "reflect", "regexp", "regexp/syntax", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "text/template", "text/template/parse", "time", "unicode", "unicode/utf16", "unicode/utf8"}, - "cmd/go/internal/fmtcmd": {"bufio", "bytes", "cmd/go/internal/base", "cmd/go/internal/buildid", "cmd/go/internal/cfg", "cmd/go/internal/load", "cmd/go/internal/str", "compress/flate", "compress/zlib", "context", "crypto", "crypto/sha1", "debug/dwarf", "debug/elf", "debug/macho", "encoding/binary", "errors", "flag", "fmt", "go/ast", "go/build", "go/doc", "go/parser", "go/scanner", "go/token", "hash", "hash/adler32", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "io/ioutil", "log", "math", "math/bits", "net/url", "os", "os/exec", "os/signal", "path", "path/filepath", "reflect", "regexp", "regexp/syntax", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "text/template", "text/template/parse", "time", "unicode", "unicode/utf16", "unicode/utf8"}, - "cmd/go/internal/generate": {"bufio", "bytes", "cmd/go/internal/base", "cmd/go/internal/buildid", "cmd/go/internal/cfg", "cmd/go/internal/load", "cmd/go/internal/str", "cmd/go/internal/work", "compress/flate", "compress/zlib", "container/heap", "context", "crypto", "crypto/sha1", "debug/dwarf", "debug/elf", "debug/macho", "encoding/binary", "errors", "flag", "fmt", "go/ast", "go/build", "go/doc", "go/parser", "go/scanner", "go/token", "hash", "hash/adler32", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "io/ioutil", "log", "math", "math/bits", "net/url", "os", "os/exec", "os/signal", "path", "path/filepath", "reflect", "regexp", "regexp/syntax", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "text/template", "text/template/parse", "time", "unicode", "unicode/utf16", "unicode/utf8"}, - "cmd/go/internal/get": {"bufio", "bytes", "cmd/go/internal/base", "cmd/go/internal/buildid", "cmd/go/internal/cfg", "cmd/go/internal/load", "cmd/go/internal/str", "cmd/go/internal/web", "cmd/go/internal/work", "compress/flate", "compress/zlib", "container/heap", "context", "crypto", "crypto/sha1", "debug/dwarf", "debug/elf", "debug/macho", "encoding", "encoding/base64", "encoding/binary", "encoding/json", "encoding/xml", "errors", "flag", "fmt", "go/ast", "go/build", "go/doc", "go/parser", "go/scanner", "go/token", "hash", "hash/adler32", "internal/poll", "internal/race", "internal/singleflight", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "io/ioutil", "log", "math", "math/bits", "net/url", "os", "os/exec", "os/signal", "path", "path/filepath", "reflect", "regexp", "regexp/syntax", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "text/template", "text/template/parse", "time", "unicode", "unicode/utf16", "unicode/utf8"}, - "cmd/go/internal/help": {"bufio", "bytes", "cmd/go/internal/base", "cmd/go/internal/cfg", "cmd/go/internal/str", "context", "errors", "flag", "fmt", "go/ast", "go/build", "go/doc", "go/parser", "go/scanner", "go/token", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "io/ioutil", "log", "math", "net/url", "os", "os/exec", "os/signal", "path", "path/filepath", "reflect", "regexp", "regexp/syntax", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "text/template", "text/template/parse", "time", "unicode", "unicode/utf16", "unicode/utf8"}, - "cmd/go/internal/list": {"bufio", "bytes", "cmd/go/internal/base", "cmd/go/internal/buildid", "cmd/go/internal/cfg", "cmd/go/internal/load", "cmd/go/internal/str", "cmd/go/internal/work", "compress/flate", "compress/zlib", "container/heap", "context", "crypto", "crypto/sha1", "debug/dwarf", "debug/elf", "debug/macho", "encoding", "encoding/base64", "encoding/binary", "encoding/json", "errors", "flag", "fmt", "go/ast", "go/build", "go/doc", "go/parser", "go/scanner", "go/token", "hash", "hash/adler32", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "io/ioutil", "log", "math", "math/bits", "net/url", "os", "os/exec", "os/signal", "path", "path/filepath", "reflect", "regexp", "regexp/syntax", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "text/template", "text/template/parse", "time", "unicode", "unicode/utf16", "unicode/utf8"}, - "cmd/go/internal/load": {"bufio", "bytes", "cmd/go/internal/base", "cmd/go/internal/buildid", "cmd/go/internal/cfg", "cmd/go/internal/str", "compress/flate", "compress/zlib", "context", "crypto", "crypto/sha1", "debug/dwarf", "debug/elf", "debug/macho", "encoding/binary", "errors", "flag", "fmt", "go/ast", "go/build", "go/doc", "go/parser", "go/scanner", "go/token", "hash", "hash/adler32", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "io/ioutil", "log", "math", "math/bits", "net/url", "os", "os/exec", "os/signal", "path", "path/filepath", "reflect", "regexp", "regexp/syntax", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "text/template", "text/template/parse", "time", "unicode", "unicode/utf16", "unicode/utf8"}, - "cmd/go/internal/run": {"bufio", "bytes", "cmd/go/internal/base", "cmd/go/internal/buildid", "cmd/go/internal/cfg", "cmd/go/internal/load", "cmd/go/internal/str", "cmd/go/internal/work", "compress/flate", "compress/zlib", "container/heap", "context", "crypto", "crypto/sha1", "debug/dwarf", "debug/elf", "debug/macho", "encoding/binary", "errors", "flag", "fmt", "go/ast", "go/build", "go/doc", "go/parser", "go/scanner", "go/token", "hash", "hash/adler32", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "io/ioutil", "log", "math", "math/bits", "net/url", "os", "os/exec", "os/signal", "path", "path/filepath", "reflect", "regexp", "regexp/syntax", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "text/template", "text/template/parse", "time", "unicode", "unicode/utf16", "unicode/utf8"}, - "cmd/go/internal/str": {"bytes", "errors", "fmt", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "math", "os", "reflect", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "strconv", "sync", "sync/atomic", "syscall", "time", "unicode", "unicode/utf16", "unicode/utf8"}, - "cmd/go/internal/test": {"bufio", "bytes", "cmd/go/internal/base", "cmd/go/internal/buildid", "cmd/go/internal/cfg", "cmd/go/internal/cmdflag", "cmd/go/internal/load", "cmd/go/internal/str", "cmd/go/internal/work", "compress/flate", "compress/zlib", "container/heap", "context", "crypto", "crypto/sha1", "debug/dwarf", "debug/elf", "debug/macho", "encoding/binary", "errors", "flag", "fmt", "go/ast", "go/build", "go/doc", "go/parser", "go/scanner", "go/token", "hash", "hash/adler32", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "io/ioutil", "log", "math", "math/bits", "net/url", "os", "os/exec", "os/signal", "path", "path/filepath", "reflect", "regexp", "regexp/syntax", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "text/template", "text/template/parse", "time", "unicode", "unicode/utf16", "unicode/utf8"}, - "cmd/go/internal/tool": {"bufio", "bytes", "cmd/go/internal/base", "cmd/go/internal/cfg", "cmd/go/internal/str", "context", "errors", "flag", "fmt", "go/ast", "go/build", "go/doc", "go/parser", "go/scanner", "go/token", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "io/ioutil", "log", "math", "net/url", "os", "os/exec", "os/signal", "path", "path/filepath", "reflect", "regexp", "regexp/syntax", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "text/template", "text/template/parse", "time", "unicode", "unicode/utf16", "unicode/utf8"}, - "cmd/go/internal/version": {"bufio", "bytes", "cmd/go/internal/base", "cmd/go/internal/cfg", "cmd/go/internal/str", "context", "errors", "flag", "fmt", "go/ast", "go/build", "go/doc", "go/parser", "go/scanner", "go/token", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "io/ioutil", "log", "math", "net/url", "os", "os/exec", "os/signal", "path", "path/filepath", "reflect", "regexp", "regexp/syntax", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "text/template", "text/template/parse", "time", "unicode", "unicode/utf16", "unicode/utf8"}, - "cmd/go/internal/cmdflag": {"cmd/go/internal/base", "flag", "fmt", "os", "strconv", "strings"}, - "cmd/go/internal/vet": {"bufio", "bytes", "cmd/go/internal/base", "cmd/go/internal/buildid", "cmd/go/internal/cfg", "cmd/go/internal/cmdflag", "cmd/go/internal/load", "cmd/go/internal/str", "cmd/go/internal/work", "compress/flate", "compress/zlib", "container/heap", "context", "crypto", "crypto/sha1", "debug/dwarf", "debug/elf", "debug/macho", "encoding/binary", "errors", "flag", "fmt", "go/ast", "go/build", "go/doc", "go/parser", "go/scanner", "go/token", "hash", "hash/adler32", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "io/ioutil", "log", "math", "math/bits", "net/url", "os", "os/exec", "os/signal", "path", "path/filepath", "reflect", "regexp", "regexp/syntax", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "text/template", "text/template/parse", "time", "unicode", "unicode/utf16", "unicode/utf8"}, + "bufio": {"bytes", "errors", "internal/cpu", "internal/race", "io", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sync", "sync/atomic", "unicode", "unicode/utf8"}, + "bytes": {"errors", "internal/cpu", "internal/race", "io", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sync", "sync/atomic", "unicode", "unicode/utf8"}, + "cmd/go/internal/base": {"bufio", "bytes", "cmd/go/internal/cfg", "cmd/go/internal/str", "context", "errors", "flag", "fmt", "go/ast", "go/build", "go/doc", "go/parser", "go/scanner", "go/token", "internal/cpu", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "io/ioutil", "log", "math", "net/url", "os", "os/exec", "os/signal", "path", "path/filepath", "reflect", "regexp", "regexp/syntax", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "text/template", "text/template/parse", "time", "unicode", "unicode/utf16", "unicode/utf8"}, + "cmd/go/internal/bug": {"bufio", "bytes", "cmd/go/internal/base", "cmd/go/internal/buildid", "cmd/go/internal/cfg", "cmd/go/internal/envcmd", "cmd/go/internal/load", "cmd/go/internal/str", "cmd/go/internal/web", "cmd/go/internal/work", "compress/flate", "compress/zlib", "container/heap", "context", "crypto", "crypto/sha1", "debug/dwarf", "debug/elf", "debug/macho", "encoding", "encoding/base64", "encoding/binary", "encoding/json", "errors", "flag", "fmt", "go/ast", "go/build", "go/doc", "go/parser", "go/scanner", "go/token", "hash", "hash/adler32", "internal/cpu", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "io/ioutil", "log", "math", "math/bits", "net/url", "os", "os/exec", "os/signal", "path", "path/filepath", "reflect", "regexp", "regexp/syntax", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "text/template", "text/template/parse", "time", "unicode", "unicode/utf16", "unicode/utf8"}, + "cmd/go/internal/buildid": {"bufio", "bytes", "cmd/go/internal/cfg", "compress/flate", "compress/zlib", "debug/dwarf", "debug/elf", "debug/macho", "encoding/binary", "errors", "fmt", "go/ast", "go/build", "go/doc", "go/parser", "go/scanner", "go/token", "hash", "hash/adler32", "internal/cpu", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "io/ioutil", "log", "math", "math/bits", "net/url", "os", "path", "path/filepath", "reflect", "regexp", "regexp/syntax", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "text/template", "text/template/parse", "time", "unicode", "unicode/utf16", "unicode/utf8"}, + "cmd/go/internal/cfg": {"bufio", "bytes", "errors", "fmt", "go/ast", "go/build", "go/doc", "go/parser", "go/scanner", "go/token", "internal/cpu", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "io/ioutil", "log", "math", "net/url", "os", "path", "path/filepath", "reflect", "regexp", "regexp/syntax", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "text/template", "text/template/parse", "time", "unicode", "unicode/utf16", "unicode/utf8"}, + "cmd/go/internal/clean": {"bufio", "bytes", "cmd/go/internal/base", 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"internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "math", "os", "path", "reflect", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "time", "unicode", "unicode/utf16", "unicode/utf8"}, - "debug/elf": {"bufio", "bytes", "compress/flate", "compress/zlib", "debug/dwarf", "encoding/binary", "errors", "fmt", "hash", "hash/adler32", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "math", "math/bits", "os", "path", "reflect", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "time", "unicode", "unicode/utf16", "unicode/utf8"}, - "debug/macho": {"bytes", "debug/dwarf", "encoding/binary", "errors", "fmt", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", 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"runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "text/template", "text/template/parse", "time", "unicode", "unicode/utf16", "unicode/utf8"}, + "compress/flate": {"bufio", "bytes", "errors", "fmt", "internal/cpu", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "math", "math/bits", "os", "reflect", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "sync", "sync/atomic", "syscall", "time", "unicode", "unicode/utf16", "unicode/utf8"}, + "compress/zlib": {"bufio", "bytes", "compress/flate", "errors", "fmt", "hash", "hash/adler32", "internal/cpu", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "math", "math/bits", "os", "reflect", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "sync", "sync/atomic", "syscall", "time", "unicode", "unicode/utf16", "unicode/utf8"}, + "container/heap": {"errors", "internal/cpu", "internal/race", "math", "reflect", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "sync", "sync/atomic", "unicode/utf8"}, + "context": {"errors", "fmt", "internal/cpu", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "math", "os", "reflect", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "strconv", "sync", "sync/atomic", "syscall", "time", "unicode/utf16", "unicode/utf8"}, + "crypto": {"errors", "hash", "internal/cpu", "internal/race", "io", "math", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "strconv", "sync", "sync/atomic", "unicode/utf8"}, + "crypto/sha1": {"crypto", "errors", "hash", "internal/cpu", "internal/race", "io", "math", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "strconv", "sync", "sync/atomic", "unicode/utf8"}, + "debug/dwarf": {"encoding/binary", "errors", "fmt", "internal/cpu", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "math", "os", "path", "reflect", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "time", "unicode", "unicode/utf16", "unicode/utf8"}, + "debug/elf": {"bufio", "bytes", "compress/flate", "compress/zlib", "debug/dwarf", "encoding/binary", "errors", "fmt", "hash", "hash/adler32", "internal/cpu", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "math", "math/bits", "os", "path", "reflect", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "time", "unicode", "unicode/utf16", "unicode/utf8"}, + "debug/macho": {"bytes", "debug/dwarf", "encoding/binary", "errors", "fmt", "internal/cpu", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "math", "os", "path", "reflect", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "time", "unicode", "unicode/utf16", "unicode/utf8"}, "encoding": {"runtime", "runtime/internal/atomic", "runtime/internal/sys"}, - "encoding/base64": {"errors", "internal/race", "io", "math", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "strconv", "sync", "sync/atomic", "unicode/utf8"}, - "encoding/binary": {"errors", "internal/race", "io", "math", "reflect", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "strconv", "sync", "sync/atomic", "unicode/utf8"}, - "encoding/json": {"bytes", "encoding", "encoding/base64", "errors", "fmt", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "math", "os", "reflect", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "time", "unicode", "unicode/utf16", "unicode/utf8"}, - "encoding/xml": {"bufio", "bytes", "encoding", "errors", "fmt", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "math", "os", "reflect", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "strconv", "strings", "sync", "sync/atomic", "syscall", "time", "unicode", "unicode/utf16", "unicode/utf8"}, + "encoding/base64": {"errors", "internal/cpu", "internal/race", "io", "math", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "strconv", "sync", "sync/atomic", "unicode/utf8"}, + "encoding/binary": {"errors", "internal/cpu", "internal/race", "io", "math", "reflect", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "strconv", "sync", "sync/atomic", "unicode/utf8"}, + "encoding/json": {"bytes", "encoding", "encoding/base64", "errors", "fmt", "internal/cpu", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "math", "os", "reflect", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "time", "unicode", "unicode/utf16", "unicode/utf8"}, + "encoding/xml": {"bufio", "bytes", "encoding", "errors", "fmt", "internal/cpu", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "math", "os", "reflect", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "strconv", "strings", "sync", "sync/atomic", "syscall", "time", "unicode", "unicode/utf16", "unicode/utf8"}, "errors": {"runtime", "runtime/internal/atomic", "runtime/internal/sys"}, - "flag": {"errors", "fmt", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "math", "os", "reflect", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "sync", "sync/atomic", "syscall", "time", "unicode/utf16", "unicode/utf8"}, - "fmt": {"errors", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "math", "os", "reflect", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "strconv", "sync", "sync/atomic", "syscall", "time", "unicode/utf16", "unicode/utf8"}, - "go/ast": {"bytes", "errors", "fmt", "go/scanner", "go/token", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "math", "os", "path/filepath", "reflect", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "time", "unicode", "unicode/utf16", "unicode/utf8"}, - "go/build": {"bufio", "bytes", "errors", "fmt", "go/ast", "go/doc", "go/parser", "go/scanner", "go/token", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "io/ioutil", "log", "math", "net/url", "os", "path", "path/filepath", "reflect", "regexp", "regexp/syntax", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "text/template", "text/template/parse", "time", "unicode", "unicode/utf16", "unicode/utf8"}, - "go/doc": {"bytes", "errors", "fmt", "go/ast", "go/scanner", "go/token", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "io/ioutil", "math", "net/url", "os", "path", "path/filepath", "reflect", "regexp", "regexp/syntax", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "text/template", "text/template/parse", "time", "unicode", "unicode/utf16", "unicode/utf8"}, - "go/parser": {"bytes", "errors", "fmt", "go/ast", "go/scanner", "go/token", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "io/ioutil", "math", "os", "path/filepath", "reflect", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "time", "unicode", "unicode/utf16", "unicode/utf8"}, - "go/scanner": {"bytes", "errors", "fmt", "go/token", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "math", "os", "path/filepath", "reflect", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "time", "unicode", "unicode/utf16", "unicode/utf8"}, - "go/token": {"errors", "fmt", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "math", "os", "reflect", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "sync", "sync/atomic", "syscall", "time", "unicode/utf16", "unicode/utf8"}, + "flag": {"errors", "fmt", "internal/cpu", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "math", "os", "reflect", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "sync", "sync/atomic", "syscall", "time", "unicode/utf16", "unicode/utf8"}, + "fmt": {"errors", "internal/cpu", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "math", "os", "reflect", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "strconv", "sync", "sync/atomic", "syscall", "time", "unicode/utf16", "unicode/utf8"}, + "go/ast": {"bytes", "errors", "fmt", "go/scanner", "go/token", "internal/cpu", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "math", "os", "path/filepath", "reflect", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "time", "unicode", "unicode/utf16", "unicode/utf8"}, + "go/build": {"bufio", "bytes", "errors", "fmt", "go/ast", "go/doc", "go/parser", "go/scanner", "go/token", "internal/cpu", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "io/ioutil", "log", "math", "net/url", "os", "path", "path/filepath", "reflect", "regexp", "regexp/syntax", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "text/template", "text/template/parse", "time", "unicode", "unicode/utf16", "unicode/utf8"}, + "go/doc": {"bytes", "errors", "fmt", "go/ast", "go/scanner", "go/token", "internal/cpu", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "io/ioutil", "math", "net/url", "os", "path", "path/filepath", "reflect", "regexp", "regexp/syntax", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "text/template", "text/template/parse", "time", "unicode", "unicode/utf16", "unicode/utf8"}, + "go/parser": {"bytes", "errors", "fmt", "go/ast", "go/scanner", "go/token", "internal/cpu", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "io/ioutil", "math", "os", "path/filepath", "reflect", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "time", "unicode", "unicode/utf16", "unicode/utf8"}, + "go/scanner": {"bytes", "errors", "fmt", "go/token", "internal/cpu", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "math", "os", "path/filepath", "reflect", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "time", "unicode", "unicode/utf16", "unicode/utf8"}, + "go/token": {"errors", "fmt", "internal/cpu", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "math", "os", "reflect", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "sync", "sync/atomic", "syscall", "time", "unicode/utf16", "unicode/utf8"}, "hash": {"errors", "internal/race", "io", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sync", "sync/atomic"}, "hash/adler32": {"errors", "hash", "internal/race", "io", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sync", "sync/atomic"}, + "internal/cpu": {"runtime", "runtime/internal/atomic", "runtime/internal/sys"}, "internal/poll": {"errors", "internal/race", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sync", "sync/atomic", "syscall", "time", "unicode/utf16", "unicode/utf8"}, "internal/race": {"runtime", "runtime/internal/atomic", "runtime/internal/sys"}, "internal/singleflight": {"internal/race", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sync", "sync/atomic"}, @@ -60,33 +61,33 @@ var builddeps = map[string][]string{ "internal/syscall/windows/registry": {"errors", "internal/race", "internal/syscall/windows/sysdll", "io", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sync", "sync/atomic", "syscall", "unicode/utf16"}, "internal/syscall/windows/sysdll": {"runtime", "runtime/internal/atomic", "runtime/internal/sys"}, "io": {"errors", "internal/race", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sync", "sync/atomic"}, - "io/ioutil": {"bytes", "errors", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "math", "os", "path/filepath", "reflect", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "time", "unicode", "unicode/utf16", "unicode/utf8"}, - "log": {"errors", "fmt", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "math", "os", "reflect", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "strconv", "sync", "sync/atomic", "syscall", "time", "unicode/utf16", "unicode/utf8"}, - "math": {"runtime", "runtime/internal/atomic", "runtime/internal/sys"}, + "io/ioutil": {"bytes", "errors", "internal/cpu", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "math", "os", "path/filepath", "reflect", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "time", "unicode", "unicode/utf16", "unicode/utf8"}, + "log": {"errors", "fmt", "internal/cpu", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "math", "os", "reflect", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "strconv", "sync", "sync/atomic", "syscall", "time", "unicode/utf16", "unicode/utf8"}, + "math": {"internal/cpu", "runtime", "runtime/internal/atomic", "runtime/internal/sys"}, "math/bits": {"runtime", "runtime/internal/atomic", "runtime/internal/sys"}, - "net/url": {"bytes", "errors", "fmt", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "math", "os", "reflect", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "time", "unicode", "unicode/utf16", "unicode/utf8"}, + "net/url": {"bytes", "errors", "fmt", "internal/cpu", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "math", "os", "reflect", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "time", "unicode", "unicode/utf16", "unicode/utf8"}, "os": {"errors", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sync", "sync/atomic", "syscall", "time", "unicode/utf16", "unicode/utf8"}, - "os/exec": {"bytes", "context", "errors", "fmt", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "math", "os", "path/filepath", "reflect", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "time", "unicode", "unicode/utf16", "unicode/utf8"}, + "os/exec": {"bytes", "context", "errors", "fmt", "internal/cpu", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "math", "os", "path/filepath", "reflect", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "time", "unicode", "unicode/utf16", "unicode/utf8"}, "os/signal": {"errors", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "os", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sync", "sync/atomic", "syscall", "time", "unicode/utf16", "unicode/utf8"}, - "path": {"errors", "internal/race", "io", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "strings", "sync", "sync/atomic", "unicode", "unicode/utf8"}, - "path/filepath": {"errors", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "math", "os", "reflect", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "time", "unicode", "unicode/utf16", "unicode/utf8"}, - "reflect": {"errors", "internal/race", "math", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "strconv", "sync", "sync/atomic", "unicode/utf8"}, - "regexp": {"bytes", "errors", "internal/race", "io", "math", "reflect", "regexp/syntax", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "unicode", "unicode/utf8"}, - "regexp/syntax": {"bytes", "errors", "internal/race", "io", "math", "reflect", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "unicode", "unicode/utf8"}, + "path": {"errors", "internal/cpu", "internal/race", "io", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "strings", "sync", "sync/atomic", "unicode", "unicode/utf8"}, + "path/filepath": {"errors", "internal/cpu", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "math", "os", "reflect", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "time", "unicode", "unicode/utf16", "unicode/utf8"}, + "reflect": {"errors", "internal/cpu", "internal/race", "math", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "strconv", "sync", "sync/atomic", "unicode/utf8"}, + "regexp": {"bytes", "errors", "internal/cpu", "internal/race", "io", "math", "reflect", "regexp/syntax", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "unicode", "unicode/utf8"}, + "regexp/syntax": {"bytes", "errors", "internal/cpu", "internal/race", "io", "math", "reflect", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "unicode", "unicode/utf8"}, "runtime": {"runtime/internal/atomic", "runtime/internal/sys"}, "runtime/internal/atomic": {"runtime/internal/sys"}, "runtime/internal/sys": {}, - "sort": {"errors", "internal/race", "math", "reflect", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "strconv", "sync", "sync/atomic", "unicode/utf8"}, - "strconv": {"errors", "math", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "unicode/utf8"}, - "strings": {"errors", "internal/race", "io", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sync", "sync/atomic", "unicode", "unicode/utf8"}, + "sort": {"errors", "internal/cpu", "internal/race", "math", "reflect", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "strconv", "sync", "sync/atomic", "unicode/utf8"}, + "strconv": {"errors", "internal/cpu", "math", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "unicode/utf8"}, + "strings": {"errors", "internal/cpu", "internal/race", "io", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sync", "sync/atomic", "unicode", "unicode/utf8"}, "sync": {"internal/race", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sync/atomic"}, "sync/atomic": {"runtime", "runtime/internal/atomic", "runtime/internal/sys"}, "syscall": {"errors", "internal/race", "internal/syscall/windows/sysdll", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sync", "sync/atomic", "unicode/utf16"}, - "text/template": {"bytes", "errors", "fmt", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "io/ioutil", "math", "net/url", "os", "path/filepath", "reflect", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "text/template/parse", "time", "unicode", "unicode/utf16", "unicode/utf8"}, - "text/template/parse": {"bytes", "errors", "fmt", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "math", "os", "reflect", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "strconv", "strings", "sync", "sync/atomic", "syscall", "time", "unicode", "unicode/utf16", "unicode/utf8"}, + "text/template": {"bytes", "errors", "fmt", "internal/cpu", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "io/ioutil", "math", "net/url", "os", "path/filepath", "reflect", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "text/template/parse", "time", "unicode", "unicode/utf16", "unicode/utf8"}, + "text/template/parse": {"bytes", "errors", "fmt", "internal/cpu", "internal/poll", "internal/race", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "math", "os", "reflect", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "strconv", "strings", "sync", "sync/atomic", "syscall", "time", "unicode", "unicode/utf16", "unicode/utf8"}, "time": {"errors", "internal/race", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sync", "sync/atomic", "syscall", "unicode/utf16"}, "unicode": {"runtime", "runtime/internal/atomic", "runtime/internal/sys"}, "unicode/utf16": {"runtime", "runtime/internal/atomic", "runtime/internal/sys"}, "unicode/utf8": {"runtime", "runtime/internal/atomic", "runtime/internal/sys"}, - "cmd/go": {"bufio", "bytes", "cmd/go/internal/base", "cmd/go/internal/bug", "cmd/go/internal/buildid", "cmd/go/internal/cfg", "cmd/go/internal/clean", "cmd/go/internal/doc", "cmd/go/internal/envcmd", "cmd/go/internal/fix", "cmd/go/internal/fmtcmd", "cmd/go/internal/generate", "cmd/go/internal/get", "cmd/go/internal/help", "cmd/go/internal/list", "cmd/go/internal/load", "cmd/go/internal/run", "cmd/go/internal/str", "cmd/go/internal/test", "cmd/go/internal/tool", "cmd/go/internal/version", "cmd/go/internal/vet", "cmd/go/internal/web", "cmd/go/internal/work", "compress/flate", "compress/zlib", "container/heap", "context", "crypto", "crypto/sha1", "debug/dwarf", "debug/elf", "debug/macho", "encoding", "encoding/base64", "encoding/binary", "encoding/json", "encoding/xml", "errors", "flag", "fmt", "go/ast", "go/build", "go/doc", "go/parser", "go/scanner", "go/token", "hash", "hash/adler32", "internal/poll", "internal/race", "internal/singleflight", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "io/ioutil", "log", "math", "math/bits", "net/url", "os", "os/exec", "os/signal", "path", "path/filepath", "reflect", "regexp", "regexp/syntax", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "text/template", "text/template/parse", "time", "unicode", "unicode/utf16", "unicode/utf8"}, + "cmd/go": {"bufio", "bytes", "cmd/go/internal/base", "cmd/go/internal/bug", "cmd/go/internal/buildid", "cmd/go/internal/cfg", "cmd/go/internal/clean", "cmd/go/internal/cmdflag", "cmd/go/internal/doc", "cmd/go/internal/envcmd", "cmd/go/internal/fix", "cmd/go/internal/fmtcmd", "cmd/go/internal/generate", "cmd/go/internal/get", "cmd/go/internal/help", "cmd/go/internal/list", "cmd/go/internal/load", "cmd/go/internal/run", "cmd/go/internal/str", "cmd/go/internal/test", "cmd/go/internal/tool", "cmd/go/internal/version", "cmd/go/internal/vet", "cmd/go/internal/web", "cmd/go/internal/work", "compress/flate", "compress/zlib", "container/heap", "context", "crypto", "crypto/sha1", "debug/dwarf", "debug/elf", "debug/macho", "encoding", "encoding/base64", "encoding/binary", "encoding/json", "encoding/xml", "errors", "flag", "fmt", "go/ast", "go/build", "go/doc", "go/parser", "go/scanner", "go/token", "hash", "hash/adler32", "internal/cpu", "internal/poll", "internal/race", "internal/singleflight", "internal/syscall/windows", "internal/syscall/windows/registry", "internal/syscall/windows/sysdll", "io", "io/ioutil", "log", "math", "math/bits", "net/url", "os", "os/exec", "os/signal", "path", "path/filepath", "reflect", "regexp", "regexp/syntax", "runtime", "runtime/internal/atomic", "runtime/internal/sys", "sort", "strconv", "strings", "sync", "sync/atomic", "syscall", "text/template", "text/template/parse", "time", "unicode", "unicode/utf16", "unicode/utf8"}, } diff --git a/src/cmd/vet/all/whitelist/amd64.txt b/src/cmd/vet/all/whitelist/amd64.txt index b77756d174..fb617d5554 100644 --- a/src/cmd/vet/all/whitelist/amd64.txt +++ b/src/cmd/vet/all/whitelist/amd64.txt @@ -15,10 +15,6 @@ runtime/asm_amd64.s: [amd64] morestack: use of 8(SP) points beyond argument fram runtime/asm_amd64.s: [amd64] cannot check cross-package assembly function: indexShortStr is in package strings runtime/asm_amd64.s: [GOARCH] cannot check cross-package assembly function: Compare is in package bytes runtime/asm_amd64.s: [amd64] cannot check cross-package assembly function: indexShortStr is in package bytes -runtime/asm_amd64.s: [amd64] cannot check cross-package assembly function: supportAVX2 is in package strings -runtime/asm_amd64.s: [amd64] cannot check cross-package assembly function: supportAVX2 is in package bytes -runtime/asm_amd64.s: [amd64] cannot check cross-package assembly function: supportPOPCNT is in package strings -runtime/asm_amd64.s: [amd64] cannot check cross-package assembly function: supportPOPCNT is in package bytes runtime/asm_amd64.s: [amd64] cannot check cross-package assembly function: countByte is in package strings runtime/asm_amd64.s: [amd64] cannot check cross-package assembly function: countByte is in package bytes diff --git a/src/crypto/sha1/sha1block_amd64.go b/src/crypto/sha1/sha1block_amd64.go index 0320e41f36..039813d7dc 100644 --- a/src/crypto/sha1/sha1block_amd64.go +++ b/src/crypto/sha1/sha1block_amd64.go @@ -4,18 +4,18 @@ package sha1 -//go:noescape +import "internal/cpu" +//go:noescape func blockAVX2(dig *digest, p []byte) //go:noescape func blockAMD64(dig *digest, p []byte) -func checkAVX2() bool -var hasAVX2 = checkAVX2() +var useAVX2 = cpu.X86.HasAVX2 && cpu.X86.HasBMI1 && cpu.X86.HasBMI2 func block(dig *digest, p []byte) { - if hasAVX2 && len(p) >= 256 { + if useAVX2 && len(p) >= 256 { // blockAVX2 calculates sha1 for 2 block per iteration // it also interleaves precalculation for next block. // So it may read up-to 192 bytes past end of p diff --git a/src/crypto/sha1/sha1block_amd64.s b/src/crypto/sha1/sha1block_amd64.s index 5356bc0543..3adb6d2c32 100644 --- a/src/crypto/sha1/sha1block_amd64.s +++ b/src/crypto/sha1/sha1block_amd64.s @@ -1457,23 +1457,6 @@ TEXT ·blockAVX2(SB),$1408-32 CALC // RET is inside macros - -// func checkAVX2() bool -// returns whether AVX2, BMI1 and BMI2 are supported -TEXT ·checkAVX2(SB),NOSPLIT,$0 - CMPB runtime·support_avx2(SB), $0 - JE noavx2 - CMPB runtime·support_bmi1(SB), $0 // check for ANDNL instruction - JE noavx2 - CMPB runtime·support_bmi2(SB), $0 // check for RORXL instruction - JE noavx2 - MOVB $1, ret+0(FP) - RET -noavx2: - MOVB $0, ret+0(FP) - RET - - DATA K_XMM_AR<>+0x00(SB)/4,$0x5a827999 DATA K_XMM_AR<>+0x04(SB)/4,$0x5a827999 DATA K_XMM_AR<>+0x08(SB)/4,$0x5a827999 diff --git a/src/crypto/sha256/sha256block_amd64.go b/src/crypto/sha256/sha256block_amd64.go new file mode 100644 index 0000000000..27464e2c12 --- /dev/null +++ b/src/crypto/sha256/sha256block_amd64.go @@ -0,0 +1,9 @@ +// Copyright 2017 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 sha256 + +import "internal/cpu" + +var useAVX2 = cpu.X86.HasAVX2 && cpu.X86.HasBMI2 diff --git a/src/crypto/sha256/sha256block_amd64.s b/src/crypto/sha256/sha256block_amd64.s index e9705b94b1..d7ac1e53b3 100644 --- a/src/crypto/sha256/sha256block_amd64.s +++ b/src/crypto/sha256/sha256block_amd64.s @@ -559,11 +559,8 @@ ADDL y3, h // h = t1 + S0 + MAJ // -- TEXT ·block(SB), 0, $536-32 - CMPB runtime·support_avx2(SB), $0 - JE noavx2bmi2 - CMPB runtime·support_bmi2(SB), $1 // check for RORXL instruction + CMPB ·useAVX2(SB), $1 JE avx2 -noavx2bmi2: MOVQ p_base+8(FP), SI MOVQ p_len+16(FP), DX diff --git a/src/crypto/sha512/sha512block_amd64.go b/src/crypto/sha512/sha512block_amd64.go index 526d85d433..18151cea24 100644 --- a/src/crypto/sha512/sha512block_amd64.go +++ b/src/crypto/sha512/sha512block_amd64.go @@ -6,19 +6,18 @@ package sha512 +import "internal/cpu" + //go:noescape func blockAVX2(dig *digest, p []byte) //go:noescape func blockAMD64(dig *digest, p []byte) -//go:noescape -func checkAVX2() bool - -var hasAVX2 = checkAVX2() +var useAVX2 = cpu.X86.HasAVX2 && cpu.X86.HasBMI1 && cpu.X86.HasBMI2 func block(dig *digest, p []byte) { - if hasAVX2 { + if useAVX2 { blockAVX2(dig, p) } else { blockAMD64(dig, p) diff --git a/src/crypto/sha512/sha512block_amd64.s b/src/crypto/sha512/sha512block_amd64.s index 5370e5ea5b..5b42420615 100644 --- a/src/crypto/sha512/sha512block_amd64.s +++ b/src/crypto/sha512/sha512block_amd64.s @@ -1472,16 +1472,3 @@ loop2: done_hash: VZEROUPPER RET - -// func checkAVX2() bool -// returns whether AVX2 is supported -TEXT ·checkAVX2(SB), NOSPLIT, $0 - MOVB runtime·support_avx2(SB), AX - CMPB AX,$0 - JNE check_bmi2 - MOVB AX, ret+0(FP) - RET -check_bmi2: - MOVB runtime·support_bmi2(SB), AX - MOVB AX, ret+0(FP) - RET diff --git a/src/go/build/deps_test.go b/src/go/build/deps_test.go index c197489cd7..2cceb5a2e2 100644 --- a/src/go/build/deps_test.go +++ b/src/go/build/deps_test.go @@ -43,6 +43,7 @@ var pkgDeps = map[string][]string{ "sync": {"internal/race", "runtime", "sync/atomic", "unsafe"}, "sync/atomic": {"unsafe"}, "unsafe": {}, + "internal/cpu": {"runtime"}, "L0": { "errors", @@ -52,11 +53,12 @@ var pkgDeps = map[string][]string{ "sync", "sync/atomic", "unsafe", + "internal/cpu", }, // L1 adds simple functions and strings processing, // but not Unicode tables. - "math": {"unsafe"}, + "math": {"internal/cpu", "unsafe"}, "math/bits": {}, "math/cmplx": {"math"}, "math/rand": {"L0", "math"}, diff --git a/src/hash/crc32/crc32_amd64.go b/src/hash/crc32/crc32_amd64.go index 369a436be9..7017a89304 100644 --- a/src/hash/crc32/crc32_amd64.go +++ b/src/hash/crc32/crc32_amd64.go @@ -8,23 +8,20 @@ package crc32 -import "unsafe" +import ( + "internal/cpu" + "unsafe" +) // This file contains the code to call the SSE 4.2 version of the Castagnoli // and IEEE CRC. -// haveSSE41/haveSSE42/haveCLMUL are defined in crc_amd64.s and use -// CPUID to test for SSE 4.1, 4.2 and CLMUL support. -func haveSSE41() bool -func haveSSE42() bool -func haveCLMUL() bool - -// castagnoliSSE42 is defined in crc32_amd64.s and uses the SSE4.2 CRC32 +// castagnoliSSE42 is defined in crc32_amd64.s and uses the SSE 4.2 CRC32 // instruction. //go:noescape func castagnoliSSE42(crc uint32, p []byte) uint32 -// castagnoliSSE42Triple is defined in crc32_amd64.s and uses the SSE4.2 CRC32 +// castagnoliSSE42Triple is defined in crc32_amd64.s and uses the SSE 4.2 CRC32 // instruction. //go:noescape func castagnoliSSE42Triple( @@ -38,9 +35,6 @@ func castagnoliSSE42Triple( //go:noescape func ieeeCLMUL(crc uint32, p []byte) uint32 -var sse42 = haveSSE42() -var useFastIEEE = haveCLMUL() && haveSSE41() - const castagnoliK1 = 168 const castagnoliK2 = 1344 @@ -50,11 +44,11 @@ var castagnoliSSE42TableK1 *sse42Table var castagnoliSSE42TableK2 *sse42Table func archAvailableCastagnoli() bool { - return sse42 + return cpu.X86.HasSSE42 } func archInitCastagnoli() { - if !sse42 { + if !cpu.X86.HasSSE42 { panic("arch-specific Castagnoli not available") } castagnoliSSE42TableK1 = new(sse42Table) @@ -86,7 +80,7 @@ func castagnoliShift(table *sse42Table, crc uint32) uint32 { } func archUpdateCastagnoli(crc uint32, p []byte) uint32 { - if !sse42 { + if !cpu.X86.HasSSE42 { panic("not available") } @@ -197,13 +191,13 @@ func archUpdateCastagnoli(crc uint32, p []byte) uint32 { } func archAvailableIEEE() bool { - return useFastIEEE + return cpu.X86.HasPCLMULQDQ && cpu.X86.HasSSE41 } var archIeeeTable8 *slicing8Table func archInitIEEE() { - if !useFastIEEE { + if !cpu.X86.HasPCLMULQDQ || !cpu.X86.HasSSE41 { panic("not available") } // We still use slicing-by-8 for small buffers. @@ -211,7 +205,7 @@ func archInitIEEE() { } func archUpdateIEEE(crc uint32, p []byte) uint32 { - if !useFastIEEE { + if !cpu.X86.HasPCLMULQDQ || !cpu.X86.HasSSE41 { panic("not available") } diff --git a/src/hash/crc32/crc32_amd64.s b/src/hash/crc32/crc32_amd64.s index 50c0ec83aa..d49093602e 100644 --- a/src/hash/crc32/crc32_amd64.s +++ b/src/hash/crc32/crc32_amd64.s @@ -134,36 +134,6 @@ loop: MOVL DX, retC+104(FP) RET -// func haveSSE42() bool -TEXT ·haveSSE42(SB),NOSPLIT,$0 - XORQ AX, AX - INCL AX - CPUID - SHRQ $20, CX - ANDQ $1, CX - MOVB CX, ret+0(FP) - RET - -// func haveCLMUL() bool -TEXT ·haveCLMUL(SB),NOSPLIT,$0 - XORQ AX, AX - INCL AX - CPUID - SHRQ $1, CX - ANDQ $1, CX - MOVB CX, ret+0(FP) - RET - -// func haveSSE41() bool -TEXT ·haveSSE41(SB),NOSPLIT,$0 - XORQ AX, AX - INCL AX - CPUID - SHRQ $19, CX - ANDQ $1, CX - MOVB CX, ret+0(FP) - RET - // CRC32 polynomial data // // These constants are lifted from the diff --git a/src/hash/crc32/crc32_amd64p32.go b/src/hash/crc32/crc32_amd64p32.go index 9d728fc8fe..1ec44cb496 100644 --- a/src/hash/crc32/crc32_amd64p32.go +++ b/src/hash/crc32/crc32_amd64p32.go @@ -4,33 +4,29 @@ package crc32 +import "internal/cpu" + // This file contains the code to call the SSE 4.2 version of the Castagnoli // CRC. -// haveSSE42 is defined in crc32_amd64p32.s and uses CPUID to test for SSE 4.2 -// support. -func haveSSE42() bool - // castagnoliSSE42 is defined in crc32_amd64p32.s and uses the SSE4.2 CRC32 // instruction. //go:noescape func castagnoliSSE42(crc uint32, p []byte) uint32 -var sse42 = haveSSE42() - func archAvailableCastagnoli() bool { - return sse42 + return cpu.X86.HasSSE42 } func archInitCastagnoli() { - if !sse42 { + if !cpu.X86.HasSSE42 { panic("not available") } // No initialization necessary. } func archUpdateCastagnoli(crc uint32, p []byte) uint32 { - if !sse42 { + if !cpu.X86.HasSSE42 { panic("not available") } return castagnoliSSE42(crc, p) diff --git a/src/hash/crc32/crc32_amd64p32.s b/src/hash/crc32/crc32_amd64p32.s index b6770eba3e..502bceac57 100644 --- a/src/hash/crc32/crc32_amd64p32.s +++ b/src/hash/crc32/crc32_amd64p32.s @@ -51,14 +51,3 @@ done: NOTL AX MOVL AX, ret+16(FP) RET - -// func haveSSE42() bool -TEXT ·haveSSE42(SB),NOSPLIT,$0 - XORQ AX, AX - INCL AX - CPUID - SHRQ $20, CX - ANDQ $1, CX - MOVB CX, ret+0(FP) - RET - diff --git a/src/internal/cpu/cpu.go b/src/internal/cpu/cpu.go new file mode 100644 index 0000000000..2226b777e2 --- /dev/null +++ b/src/internal/cpu/cpu.go @@ -0,0 +1,32 @@ +// Copyright 2017 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 cpu implements processor feature detection +// used by the Go standard libary. +package cpu + +var X86 x86 + +// The booleans in x86 contain the correspondingly named cpuid feature bit. +// HasAVX and HasAVX2 are only set if the OS does support XMM and YMM registers +// in addition to the cpuid feature bit being set. +// The struct is padded to avoid false sharing. +type x86 struct { + _ [CacheLineSize]byte + HasAES bool + HasAVX bool + HasAVX2 bool + HasBMI1 bool + HasBMI2 bool + HasERMS bool + HasOSXSAVE bool + HasPCLMULQDQ bool + HasPOPCNT bool + HasSSE2 bool + HasSSE3 bool + HasSSSE3 bool + HasSSE41 bool + HasSSE42 bool + _ [CacheLineSize]byte +} diff --git a/src/internal/cpu/cpu_arm.go b/src/internal/cpu/cpu_arm.go new file mode 100644 index 0000000000..078a6c3b80 --- /dev/null +++ b/src/internal/cpu/cpu_arm.go @@ -0,0 +1,7 @@ +// Copyright 2017 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 cpu + +const CacheLineSize = 32 diff --git a/src/internal/cpu/cpu_arm64.go b/src/internal/cpu/cpu_arm64.go new file mode 100644 index 0000000000..078a6c3b80 --- /dev/null +++ b/src/internal/cpu/cpu_arm64.go @@ -0,0 +1,7 @@ +// Copyright 2017 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 cpu + +const CacheLineSize = 32 diff --git a/src/internal/cpu/cpu_mips.go b/src/internal/cpu/cpu_mips.go new file mode 100644 index 0000000000..078a6c3b80 --- /dev/null +++ b/src/internal/cpu/cpu_mips.go @@ -0,0 +1,7 @@ +// Copyright 2017 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 cpu + +const CacheLineSize = 32 diff --git a/src/internal/cpu/cpu_mips64.go b/src/internal/cpu/cpu_mips64.go new file mode 100644 index 0000000000..078a6c3b80 --- /dev/null +++ b/src/internal/cpu/cpu_mips64.go @@ -0,0 +1,7 @@ +// Copyright 2017 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 cpu + +const CacheLineSize = 32 diff --git a/src/internal/cpu/cpu_mips64le.go b/src/internal/cpu/cpu_mips64le.go new file mode 100644 index 0000000000..078a6c3b80 --- /dev/null +++ b/src/internal/cpu/cpu_mips64le.go @@ -0,0 +1,7 @@ +// Copyright 2017 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 cpu + +const CacheLineSize = 32 diff --git a/src/internal/cpu/cpu_mipsle.go b/src/internal/cpu/cpu_mipsle.go new file mode 100644 index 0000000000..078a6c3b80 --- /dev/null +++ b/src/internal/cpu/cpu_mipsle.go @@ -0,0 +1,7 @@ +// Copyright 2017 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 cpu + +const CacheLineSize = 32 diff --git a/src/internal/cpu/cpu_ppc64.go b/src/internal/cpu/cpu_ppc64.go new file mode 100644 index 0000000000..5b15150847 --- /dev/null +++ b/src/internal/cpu/cpu_ppc64.go @@ -0,0 +1,7 @@ +// Copyright 2017 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 cpu + +const CacheLineSize = 128 diff --git a/src/internal/cpu/cpu_ppc64le.go b/src/internal/cpu/cpu_ppc64le.go new file mode 100644 index 0000000000..5b15150847 --- /dev/null +++ b/src/internal/cpu/cpu_ppc64le.go @@ -0,0 +1,7 @@ +// Copyright 2017 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 cpu + +const CacheLineSize = 128 diff --git a/src/internal/cpu/cpu_s390x.go b/src/internal/cpu/cpu_s390x.go new file mode 100644 index 0000000000..4455809d53 --- /dev/null +++ b/src/internal/cpu/cpu_s390x.go @@ -0,0 +1,7 @@ +// Copyright 2017 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 cpu + +const CacheLineSize = 256 diff --git a/src/internal/cpu/cpu_test.go b/src/internal/cpu/cpu_test.go new file mode 100644 index 0000000000..ab9836ac2f --- /dev/null +++ b/src/internal/cpu/cpu_test.go @@ -0,0 +1,27 @@ +// Copyright 2017 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 cpu_test + +import ( + "internal/cpu" + "runtime" + "testing" +) + +func TestAMD64minimalFeatures(t *testing.T) { + if runtime.GOARCH == "amd64" { + if !cpu.X86.HasSSE2 { + t.Fatalf("HasSSE2 expected true, got false") + } + } +} + +func TestAVX2hasAVX(t *testing.T) { + if runtime.GOARCH == "amd64" { + if cpu.X86.HasAVX2 && !cpu.X86.HasAVX { + t.Fatalf("HasAVX expected true, got false") + } + } +} diff --git a/src/internal/cpu/cpu_x86.go b/src/internal/cpu/cpu_x86.go new file mode 100644 index 0000000000..31e7084e78 --- /dev/null +++ b/src/internal/cpu/cpu_x86.go @@ -0,0 +1,59 @@ +// Copyright 2017 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. + +// +build 386 amd64 amd64p32 + +package cpu + +const CacheLineSize = 64 + +// cpuid is implemented in cpu_x86.s. +func cpuid(eaxArg, ecxArg uint32) (eax, ebx, ecx, edx uint32) + +// xgetbv with ecx = 0 is implemented in cpu_x86.s. +func xgetbv() (eax, edx uint32) + +func init() { + maxId, _, _, _ := cpuid(0, 0) + + if maxId < 1 { + return + } + + _, _, ecx1, edx1 := cpuid(1, 0) + X86.HasSSE2 = isSet(26, edx1) + + X86.HasSSE3 = isSet(0, ecx1) + X86.HasPCLMULQDQ = isSet(1, ecx1) + X86.HasSSSE3 = isSet(9, ecx1) + X86.HasSSE41 = isSet(19, ecx1) + X86.HasSSE42 = isSet(20, ecx1) + X86.HasPOPCNT = isSet(23, ecx1) + X86.HasAES = isSet(25, ecx1) + X86.HasOSXSAVE = isSet(27, ecx1) + + osSupportsAVX := false + // For XGETBV, OSXSAVE bit is required and sufficient. + if X86.HasOSXSAVE { + eax, _ := xgetbv() + // Check if XMM and YMM registers have OS support. + osSupportsAVX = isSet(1, eax) && isSet(2, eax) + } + + X86.HasAVX = isSet(28, ecx1) && osSupportsAVX + + if maxId < 7 { + return + } + + _, ebx7, _, _ := cpuid(7, 0) + X86.HasBMI1 = isSet(3, ebx7) + X86.HasAVX2 = isSet(5, ebx7) && osSupportsAVX + X86.HasBMI2 = isSet(8, ebx7) + X86.HasERMS = isSet(9, ebx7) +} + +func isSet(bitpos uint, value uint32) bool { + return value&(1<