Switch to clang-r383902 (11.0.1).

Also suppress some warnings/flags globally to pass compilation.

Bug: 149839606
Test: build aosp_arm64-userdebug.
Change-Id: I0ed740e51b6b39c58842a58eabcf3cdf404e73fa
Merged-In: I0ed740e51b6b39c58842a58eabcf3cdf404e73fa
(cherry picked from commit 8ec05ff5f6)

cc/config/clang.go

@@ -48,6 +48,8 @@ var ClangUnknownCflags = sorted([]string{
 	"-Wunused-but-set-parameter",
 	"-Wunused-but-set-variable",
 	"-fdiagnostics-color",
+	// http://b/153759688
+	"-fuse-init-array",
 
 	// arm + arm64 + mips + mips64
 	"-fgcse-after-reload",
@@ -120,9 +122,6 @@ func init() {
 		// color codes if it is not running in a terminal.
 		"-fcolor-diagnostics",
 
-		// http://b/68236239 Allow 0/NULL instead of using nullptr everywhere.
-		"-Wno-zero-as-null-pointer-constant",
-
 		// Warnings from clang-7.0
 		"-Wno-sign-compare",
 
@@ -173,6 +172,17 @@ func init() {
 		"-Wno-int-in-bool-context",          // http://b/148287349
 		"-Wno-sizeof-array-div",             // http://b/148815709
 		"-Wno-tautological-overlap-compare", // http://b/148815696
+		// New warnings to be fixed after clang-r383902.
+		"-Wno-deprecated-copy",                      // http://b/153746672
+		"-Wno-range-loop-construct",                 // http://b/153747076
+		"-Wno-misleading-indentation",               // http://b/153746954
+		"-Wno-zero-as-null-pointer-constant",        // http://b/68236239
+		"-Wno-deprecated-anon-enum-enum-conversion", // http://b/153746485
+		"-Wno-deprecated-enum-enum-conversion",      // http://b/153746563
+		"-Wno-string-compare",                       // http://b/153764102
+		"-Wno-enum-enum-conversion",                 // http://b/154138986
+		"-Wno-enum-float-conversion",                // http://b/154255917
+		"-Wno-pessimizing-move",                     // http://b/154270751
 	}, " "))
 
 	// Extra cflags for external third-party projects to disable warnings that

cc/config/global.go

@@ -128,8 +128,8 @@ var (
 
 	// prebuilts/clang default settings.
 	ClangDefaultBase         = "prebuilts/clang/host"
-	ClangDefaultVersion      = "clang-r377782d"
-	ClangDefaultShortVersion = "10.0.6"
+	ClangDefaultVersion      = "clang-r383902"
+	ClangDefaultShortVersion = "11.0.1"
 
 	// Directories with warnings from Android.bp files.
 	WarningAllowedProjects = []string{

cc/tidy.go

@@ -121,6 +121,12 @@ func (tidy *tidyFeature) flags(ctx ModuleContext, flags Flags) Flags {
 	// many local projects enable cert-* checks, which
 	// trigger bugprone-reserved-identifier.
 	tidyChecks = tidyChecks + ",-bugprone-reserved-identifier*,-cert-dcl51-cpp,-cert-dcl37-c"
+	// http://b/153757728
+	tidyChecks = tidyChecks + ",-readability-qualified-auto"
+	// http://b/155034563
+	tidyChecks = tidyChecks + ",-bugprone-signed-char-misuse"
+	// http://b/155034972
+	tidyChecks = tidyChecks + ",-bugprone-branch-clone"
 	flags.TidyFlags = append(flags.TidyFlags, tidyChecks)
 
 	if len(tidy.Properties.Tidy_checks_as_errors) > 0 {