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📁 ..
📄 README(205 B)
📄 abiutils_test.go(14.51 KB)
📄 abiutilsaux_test.go(3.24 KB)
📄 align_test.go(1.57 KB)
📄 bench_test.go(2.08 KB)
📄 clobberdead_test.go(1.25 KB)
📄 constFold_test.go(322.99 KB)
📄 dep_test.go(858 B)
📄 divconst_test.go(7.74 KB)
📄 fixedbugs_test.go(2.24 KB)
📄 float_test.go(12.48 KB)
📄 global_test.go(2.59 KB)
📄 iface_test.go(1.92 KB)
📄 inl_test.go(8.19 KB)
📄 inst_test.go(2.21 KB)
📄 intrinsics_test.go(1.08 KB)
📄 issue50182_test.go(1.24 KB)
📄 lang_test.go(1.47 KB)
📄 logic_test.go(11.08 KB)
📄 mulconst_test.go(4.29 KB)
📄 race.go(1.33 KB)
📄 reproduciblebuilds_test.go(2.9 KB)
📄 shift_test.go(21.62 KB)
📄 ssa_test.go(5.12 KB)
📄 switch_test.go(2.29 KB)
📄 test.go(13 B)
📁 testdata
📄 truncconst_test.go(1.76 KB)
📄 zerorange_test.go(4.06 KB)

Editing: inst_test.go

// Copyright 2021 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 test

import (
	"internal/goexperiment"
	"internal/testenv"
	"io/ioutil"
	"os"
	"os/exec"
	"path/filepath"
	"regexp"
	"testing"
)

// TestInst tests that only one instantiation of Sort is created, even though generic
// Sort is used for multiple pointer types across two packages.
func TestInst(t *testing.T) {
	if goexperiment.Unified {
		t.Skip("unified currently does stenciling, not dictionaries")
	}
	testenv.MustHaveGoBuild(t)
	testenv.MustHaveGoRun(t)

var tmpdir string
	var err error
	tmpdir, err = ioutil.TempDir("", "TestDict")
	if err != nil {
		t.Fatalf("Failed to create temporary directory: %v", err)
	}
	defer os.RemoveAll(tmpdir)

// Build ptrsort.go, which uses package mysort.
	var output []byte
	filename := "ptrsort.go"
	exename := "ptrsort"
	outname := "ptrsort.out"
	gotool := testenv.GoToolPath(t)
	dest := filepath.Join(tmpdir, exename)
	cmd := exec.Command(gotool, "build", "-o", dest, filepath.Join("testdata", filename))
	if output, err = cmd.CombinedOutput(); err != nil {
		t.Fatalf("Failed: %v:\nOutput: %s\n", err, output)
	}

// Test that there is exactly one shape-based instantiation of Sort in
	// the executable.
	cmd = exec.Command(gotool, "tool", "nm", dest)
	if output, err = cmd.CombinedOutput(); err != nil {
		t.Fatalf("Failed: %v:\nOut: %s\n", err, output)
	}
	// Look for shape-based instantiation of Sort, but ignore any extra wrapper
	// ending in "-tramp" (which are created on riscv).
	re := regexp.MustCompile(`\bSort\[.*shape.*\][^-]`)
	r := re.FindAllIndex(output, -1)
	if len(r) != 1 {
		t.Fatalf("Wanted 1 instantiations of Sort function, got %d\n", len(r))
	}

// Actually run the test and make sure output is correct.
	cmd = exec.Command(gotool, "run", filepath.Join("testdata", filename))
	if output, err = cmd.CombinedOutput(); err != nil {
		t.Fatalf("Failed: %v:\nOut: %s\n", err, output)
	}
	out, err := ioutil.ReadFile(filepath.Join("testdata", outname))
	if err != nil {
		t.Fatalf("Could not find %s\n", outname)
	}
	if string(out) != string(output) {
		t.Fatalf("Wanted output %v, got %v\n", string(out), string(output))
	}
}

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Editing: inst_test.go

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