mirror of
https://github.com/golang/go
synced 2024-09-05 07:54:46 +00:00
test: run codegen tests on all supported architecture variants
This CL makes the codegen testsuite automatically test all architecture variants for architecture specified in tests. For instance, if a test file specifies a "arm" test, it will be automatically run on all GOARM variants (5,6,7), to increase the coverage. The CL also introduces a syntax to specify only a specific variant (eg: "arm/7") in case the test makes sense only there. The same syntax also allows to specify the operating system in case it matters (eg: "plan9/386/sse2"). Fixes #24658 Change-Id: I2eba8b918f51bb6a77a8431a309f8b71af07ea22 Reviewed-on: https://go-review.googlesource.com/107315 Run-TryBot: Giovanni Bajo <rasky@develer.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This commit is contained in:
parent
01aa1d7dbe
commit
284ba47b49
|
@ -94,6 +94,24 @@ For example:
|
|||
verifies that NO memmove call is present in the assembly generated for
|
||||
the copy() line.
|
||||
|
||||
- Architecture specifiers
|
||||
|
||||
There are three different ways to specify on which architecture a test
|
||||
should be run:
|
||||
|
||||
* Specify only the architecture (eg: "amd64"). This indicates that the
|
||||
check should be run on all the supported architecture variants. For
|
||||
instance, arm checks will be run against all supported GOARM
|
||||
variations (5,6,7).
|
||||
* Specify both the architecture and a variant, separated by a slash
|
||||
(eg: "arm/7"). This means that the check will be run only on that
|
||||
specific variant.
|
||||
* Specify the operating system, the architecture and the variant,
|
||||
separated by slashes (eg: "plan9/386/sse2", "plan9/amd64/"). This is
|
||||
needed in the rare case that you need to do a codegen test affected
|
||||
by a specific operating system; by default, tests are compiled only
|
||||
targeting linux.
|
||||
|
||||
|
||||
- Remarks, and Caveats
|
||||
|
||||
|
|
|
@ -15,29 +15,33 @@ package codegen
|
|||
// --------------------- //
|
||||
|
||||
func Mul2(f float64) float64 {
|
||||
// 386:"ADDSD|FADDDP",-"MULSD",-"FMULDP"
|
||||
// 386/sse2:"ADDSD",-"MULSD"
|
||||
// 386/387:"FADDDP",-"FMULDP"
|
||||
// amd64:"ADDSD",-"MULSD"
|
||||
// arm:"ADDD",-"MULD"
|
||||
// arm/7:"ADDD",-"MULD"
|
||||
// arm64:"FADDD",-"FMULD"
|
||||
return f * 2.0
|
||||
}
|
||||
|
||||
func DivPow2(f1, f2, f3 float64) (float64, float64, float64) {
|
||||
// 386:"MULSD|FMULDP",-"DIVSD",-"FDIVDP"
|
||||
// 386/sse2:"MULSD",-"DIVSD"
|
||||
// 386/387:"FMULDP",-"FDIVDP"
|
||||
// amd64:"MULSD",-"DIVSD"
|
||||
// arm:"MULD",-"DIVD"
|
||||
// arm/7:"MULD",-"DIVD"
|
||||
// arm64:"FMULD",-"FDIVD"
|
||||
x := f1 / 16.0
|
||||
|
||||
// 386:"MULSD|FMULDP",-"DIVSD",-"FDIVDP"
|
||||
// 386/sse2:"MULSD",-"DIVSD"
|
||||
// 386/387:"FMULDP",-"FDIVDP"
|
||||
// amd64:"MULSD",-"DIVSD"
|
||||
// arm:"MULD",-"DIVD"
|
||||
// arm/7:"MULD",-"DIVD"
|
||||
// arm64:"FMULD",-"FDIVD"
|
||||
y := f2 / 0.125
|
||||
|
||||
// 386:"ADDSD|FADDDP",-"DIVSD",-"MULSD",-"FDIVDP",-"FMULDP"
|
||||
// 386/sse2:"ADDSD",-"DIVSD",-"MULSD"
|
||||
// 386/387:"FADDDP",-"FDIVDP",-"FMULDP"
|
||||
// amd64:"ADDSD",-"DIVSD",-"MULSD"
|
||||
// arm:"ADDD",-"MULD",-"DIVD"
|
||||
// arm/7:"ADDD",-"MULD",-"DIVD"
|
||||
// arm64:"FADDD",-"FMULD",-"FDIVD"
|
||||
z := f3 / 0.5
|
||||
|
||||
|
|
|
@ -33,9 +33,10 @@ func approx(x float64) {
|
|||
|
||||
func sqrt(x float64) float64 {
|
||||
// amd64:"SQRTSD"
|
||||
// 386:"FSQRT|SQRTSD" (387 or sse2)
|
||||
// 386/387:"FSQRT" 386/sse2:"SQRTSD"
|
||||
// arm64:"FSQRTD"
|
||||
// mips:"SQRTD" mips64:"SQRTD"
|
||||
// arm/7:"SQRTD"
|
||||
// mips/hardfloat:"SQRTD" mips64:"SQRTD"
|
||||
return math.Sqrt(x)
|
||||
}
|
||||
|
||||
|
|
135
test/run.go
135
test/run.go
|
@ -5,9 +5,6 @@
|
|||
// license that can be found in the LICENSE file.
|
||||
|
||||
// Run runs tests in the test directory.
|
||||
//
|
||||
// TODO(bradfitz): docs of some sort, once we figure out how we're changing
|
||||
// headers of files
|
||||
package main
|
||||
|
||||
import (
|
||||
|
@ -610,13 +607,13 @@ func (t *test) run() {
|
|||
t.err = fmt.Errorf("unimplemented action %q", action)
|
||||
|
||||
case "asmcheck":
|
||||
ops, archs := t.wantedAsmOpcodes(long)
|
||||
for _, arch := range archs {
|
||||
ops := t.wantedAsmOpcodes(long)
|
||||
for _, env := range ops.Envs() {
|
||||
cmdline := []string{"build", "-gcflags", "-S"}
|
||||
cmdline = append(cmdline, flags...)
|
||||
cmdline = append(cmdline, long)
|
||||
cmd := exec.Command(goTool(), cmdline...)
|
||||
cmd.Env = append(os.Environ(), "GOOS=linux", "GOARCH="+arch, "GOARM=7")
|
||||
cmd.Env = append(os.Environ(), env.Environ()...)
|
||||
|
||||
var buf bytes.Buffer
|
||||
cmd.Stdout, cmd.Stderr = &buf, &buf
|
||||
|
@ -625,7 +622,7 @@ func (t *test) run() {
|
|||
return
|
||||
}
|
||||
|
||||
t.err = t.asmCheck(buf.String(), long, arch, ops[arch])
|
||||
t.err = t.asmCheck(buf.String(), long, env, ops[env])
|
||||
if t.err != nil {
|
||||
return
|
||||
}
|
||||
|
@ -1289,12 +1286,28 @@ var (
|
|||
|
||||
// Regexp to extract an architecture check: architecture name, followed by semi-colon,
|
||||
// followed by a comma-separated list of opcode checks.
|
||||
rxAsmPlatform = regexp.MustCompile(`(\w+):(` + reMatchCheck + `(?:,` + reMatchCheck + `)*)`)
|
||||
rxAsmPlatform = regexp.MustCompile(`(\w+)(/\w+)?(/\w*)?:(` + reMatchCheck + `(?:,` + reMatchCheck + `)*)`)
|
||||
|
||||
// Regexp to extract a single opcoded check
|
||||
rxAsmCheck = regexp.MustCompile(reMatchCheck)
|
||||
|
||||
// List of all architecture variants. Key is the GOARCH architecture,
|
||||
// value[1] is the variant-changing environment variable, and values[1:]
|
||||
// are the supported variants.
|
||||
archVariants = map[string][]string{
|
||||
"386": {"GO386", "387", "sse2"},
|
||||
"amd64": {},
|
||||
"arm": {"GOARM", "5", "6", "7"},
|
||||
"arm64": {},
|
||||
"mips": {"GOMIPS", "hardfloat", "softfloat"},
|
||||
"mips64": {},
|
||||
"ppc64": {},
|
||||
"ppc64le": {},
|
||||
"s390x": {},
|
||||
}
|
||||
)
|
||||
|
||||
// wantedAsmOpcode is a single asmcheck check
|
||||
type wantedAsmOpcode struct {
|
||||
fileline string // original source file/line (eg: "/path/foo.go:45")
|
||||
line int // original source line
|
||||
|
@ -1303,9 +1316,44 @@ type wantedAsmOpcode struct {
|
|||
found bool // true if the opcode check matched at least one in the output
|
||||
}
|
||||
|
||||
func (t *test) wantedAsmOpcodes(fn string) (map[string]map[string][]wantedAsmOpcode, []string) {
|
||||
ops := make(map[string]map[string][]wantedAsmOpcode)
|
||||
archs := make(map[string]bool)
|
||||
// A build environment triplet separated by slashes (eg: linux/386/sse2).
|
||||
// The third field can be empty if the arch does not support variants (eg: "plan9/amd64")
|
||||
type buildEnv string
|
||||
|
||||
// Environ returns the environment it represents in cmd.Environ() "key=val" format
|
||||
// For instance, "linux/386/sse2".Environ() returns {"GOOS=linux", "GOARCH=386", "GO386=sse2"}
|
||||
func (b buildEnv) Environ() []string {
|
||||
fields := strings.Split(string(b), "/")
|
||||
if len(fields) != 3 && len(fields) != 2 {
|
||||
panic("invalid buildEnv string: " + string(b))
|
||||
}
|
||||
env := []string{"GOOS=" + fields[0], "GOARCH=" + fields[1]}
|
||||
if len(fields) == 3 {
|
||||
env = append(env, archVariants[fields[1]][0]+"="+fields[2])
|
||||
}
|
||||
return env
|
||||
}
|
||||
|
||||
// asmChecks represents all the asmcheck checks present in a test file
|
||||
// The outer map key is the build triplet in which the checks must be performed.
|
||||
// The inner map key represent the source file line ("filename.go:1234") at which the
|
||||
// checks must be performed.
|
||||
type asmChecks map[buildEnv]map[string][]wantedAsmOpcode
|
||||
|
||||
// Envs returns all the buildEnv in which at least one check is present
|
||||
func (a asmChecks) Envs() []buildEnv {
|
||||
var envs []buildEnv
|
||||
for e := range a {
|
||||
envs = append(envs, e)
|
||||
}
|
||||
sort.Slice(envs, func(i, j int) bool {
|
||||
return string(envs[i]) < string(envs[j])
|
||||
})
|
||||
return envs
|
||||
}
|
||||
|
||||
func (t *test) wantedAsmOpcodes(fn string) asmChecks {
|
||||
ops := make(asmChecks)
|
||||
|
||||
comment := ""
|
||||
src, _ := ioutil.ReadFile(fn)
|
||||
|
@ -1324,7 +1372,36 @@ func (t *test) wantedAsmOpcodes(fn string) (map[string]map[string][]wantedAsmOpc
|
|||
// made by one architecture name and multiple checks.
|
||||
lnum := fn + ":" + strconv.Itoa(i+1)
|
||||
for _, ac := range rxAsmPlatform.FindAllStringSubmatch(comment, -1) {
|
||||
arch, allchecks := ac[1], ac[2]
|
||||
archspec, allchecks := ac[1:4], ac[4]
|
||||
|
||||
var arch, subarch, os string
|
||||
switch {
|
||||
case archspec[2] != "": // 3 components: "linux/386/sse2"
|
||||
os, arch, subarch = archspec[0], archspec[1][1:], archspec[2][1:]
|
||||
case archspec[1] != "": // 2 components: "386/sse2"
|
||||
os, arch, subarch = "linux", archspec[0], archspec[1][1:]
|
||||
default: // 1 component: "386"
|
||||
os, arch, subarch = "linux", archspec[0], ""
|
||||
}
|
||||
|
||||
if _, ok := archVariants[arch]; !ok {
|
||||
log.Fatalf("%s:%d: unsupported architecture: %v", t.goFileName(), i+1, arch)
|
||||
}
|
||||
|
||||
// Create the build environments corresponding the above specifiers
|
||||
envs := make([]buildEnv, 0, 4)
|
||||
if subarch != "" {
|
||||
envs = append(envs, buildEnv(os+"/"+arch+"/"+subarch))
|
||||
} else {
|
||||
subarchs := archVariants[arch]
|
||||
if len(subarchs) == 0 {
|
||||
envs = append(envs, buildEnv(os+"/"+arch))
|
||||
} else {
|
||||
for _, sa := range archVariants[arch][1:] {
|
||||
envs = append(envs, buildEnv(os+"/"+arch+"/"+sa))
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
for _, m := range rxAsmCheck.FindAllString(allchecks, -1) {
|
||||
negative := false
|
||||
|
@ -1350,31 +1427,27 @@ func (t *test) wantedAsmOpcodes(fn string) (map[string]map[string][]wantedAsmOpc
|
|||
if err != nil {
|
||||
log.Fatalf("%s:%d: %v", t.goFileName(), i+1, err)
|
||||
}
|
||||
if ops[arch] == nil {
|
||||
ops[arch] = make(map[string][]wantedAsmOpcode)
|
||||
|
||||
for _, env := range envs {
|
||||
if ops[env] == nil {
|
||||
ops[env] = make(map[string][]wantedAsmOpcode)
|
||||
}
|
||||
ops[env][lnum] = append(ops[env][lnum], wantedAsmOpcode{
|
||||
negative: negative,
|
||||
fileline: lnum,
|
||||
line: i + 1,
|
||||
opcode: oprx,
|
||||
})
|
||||
}
|
||||
archs[arch] = true
|
||||
ops[arch][lnum] = append(ops[arch][lnum], wantedAsmOpcode{
|
||||
negative: negative,
|
||||
fileline: lnum,
|
||||
line: i + 1,
|
||||
opcode: oprx,
|
||||
})
|
||||
}
|
||||
}
|
||||
comment = ""
|
||||
}
|
||||
|
||||
var sarchs []string
|
||||
for a := range archs {
|
||||
sarchs = append(sarchs, a)
|
||||
}
|
||||
sort.Strings(sarchs)
|
||||
|
||||
return ops, sarchs
|
||||
return ops
|
||||
}
|
||||
|
||||
func (t *test) asmCheck(outStr string, fn string, arch string, fullops map[string][]wantedAsmOpcode) (err error) {
|
||||
func (t *test) asmCheck(outStr string, fn string, env buildEnv, fullops map[string][]wantedAsmOpcode) (err error) {
|
||||
// The assembly output contains the concatenated dump of multiple functions.
|
||||
// the first line of each function begins at column 0, while the rest is
|
||||
// indented by a tabulation. These data structures help us index the
|
||||
|
@ -1449,9 +1522,9 @@ func (t *test) asmCheck(outStr string, fn string, arch string, fullops map[strin
|
|||
}
|
||||
|
||||
if o.negative {
|
||||
fmt.Fprintf(&errbuf, "%s:%d: %s: wrong opcode found: %q\n", t.goFileName(), o.line, arch, o.opcode.String())
|
||||
fmt.Fprintf(&errbuf, "%s:%d: %s: wrong opcode found: %q\n", t.goFileName(), o.line, env, o.opcode.String())
|
||||
} else {
|
||||
fmt.Fprintf(&errbuf, "%s:%d: %s: opcode not found: %q\n", t.goFileName(), o.line, arch, o.opcode.String())
|
||||
fmt.Fprintf(&errbuf, "%s:%d: %s: opcode not found: %q\n", t.goFileName(), o.line, env, o.opcode.String())
|
||||
}
|
||||
}
|
||||
err = errors.New(errbuf.String())
|
||||
|
|
Loading…
Reference in a new issue