libgo, compiler: Upgrade libgo to Go 1.4, except for runtime.

This upgrades all of libgo other than the runtime package to
the Go 1.4 release.  In Go 1.4 much of the runtime was
rewritten into Go.  Merging that code will take more time and
will not change the API, so I'm putting it off for now.

There are a few runtime changes anyhow, to accomodate other
packages that rely on minor modifications to the runtime
support.

The compiler changes slightly to add a one-bit flag to each
type descriptor kind that is stored directly in an interface,
which for gccgo is currently only pointer types.  Another
one-bit flag (gcprog) is reserved because it is used by the gc
compiler, but gccgo does not currently use it.

There is another error check in the compiler since I ran
across it during testing.

gotools/:
	* Makefile.am (go_cmd_go_files): Sort entries.  Add generate.go.
	* Makefile.in: Rebuild.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@219627 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 22 insertions, 11 deletions

diff --git a/libgo/go/path/filepath/path_test.go b/libgo/go/path/filepath/path_test.go
index 6d1139432c3..c3ee0cb86b8 100644
--- a/libgo/go/path/filepath/path_test.go
+++ b/libgo/go/path/filepath/path_test.go
@@ -15,6 +15,8 @@ import (
 	"testing"
 )
 
+var supportsSymlinks = true
+
 type PathTest struct {
 	path, result string
 }
@@ -629,6 +631,8 @@ var winisabstests = []IsAbsTest{
 	{`\`, false},
 	{`\Windows`, false},
 	{`c:a\b`, false},
+	{`c:\a\b`, true},
+	{`c:/a/b`, true},
 	{`\\host\share\foo`, true},
 	{`//host/share/foo/bar`, true},
 }
@@ -719,7 +723,7 @@ func TestEvalSymlinks(t *testing.T) {
 		if d.dest == "" {
 			err = os.Mkdir(path, 0755)
 		} else {
-			if runtime.GOOS != "windows" {
+			if supportsSymlinks {
 				err = os.Symlink(d.dest, path)
 			}
 		}
@@ -729,7 +733,9 @@ func TestEvalSymlinks(t *testing.T) {
 	}
 
 	var tests []EvalSymlinksTest
-	if runtime.GOOS == "windows" {
+	if supportsSymlinks {
+		tests = EvalSymlinksTests
+	} else {
 		for _, d := range EvalSymlinksTests {
 			if d.path == d.dest {
 				// will test only real files and directories
@@ -742,15 +748,13 @@ func TestEvalSymlinks(t *testing.T) {
 				tests = append(tests, d2)
 			}
 		}
-	} else {
-		tests = EvalSymlinksTests
 	}
 
 	// Evaluate the symlink farm.
 	for _, d := range tests {
 		path := simpleJoin(tmpDir, d.path)
 		dest := simpleJoin(tmpDir, d.dest)
-		if filepath.IsAbs(d.dest) {
+		if filepath.IsAbs(d.dest) || os.IsPathSeparator(d.dest[0]) {
 			dest = d.dest
 		}
 		if p, err := filepath.EvalSymlinks(path); err != nil {
@@ -785,12 +789,6 @@ var absTests = []string{
 }
 
 func TestAbs(t *testing.T) {
-	oldwd, err := os.Getwd()
-	if err != nil {
-		t.Fatal("Getwd failed: ", err)
-	}
-	defer os.Chdir(oldwd)
-
 	root, err := ioutil.TempDir("", "TestAbs")
 	if err != nil {
 		t.Fatal("TempDir failed: ", err)
@@ -814,6 +812,19 @@ func TestAbs(t *testing.T) {
 		}
 	}
 
+	if runtime.GOOS == "windows" {
+		vol := filepath.VolumeName(root)
+		var extra []string
+		for _, path := range absTests {
+			if strings.Index(path, "$") != -1 {
+				continue
+			}
+			path = vol + path
+			extra = append(extra, path)
+		}
+		absTests = append(absTests, extra...)
+	}
+
 	err = os.Chdir(absTestDirs[0])
 	if err != nil {
 		t.Fatal("chdir failed: ", err)