Generate app profiles even if dexpreopt is disabled.

Bug: 280440941
Test: -
  1. Patch ag/22302622 to disable dexpreopt.
  2. lunch aosp_cf_x86_64_phone-userdebug && m
  3. See app profiles still generated.
Test: -
  1. Patch ag/20592051 to enable profile for service-art.
  2. banchan com.android.art x86_64 && m
  3. See the profile for service-art generated.
Change-Id: I4e721b475b84a2f667bbccc030a8947078f26bb0

dexpreopt/dexpreopt.go

@@ -100,11 +100,19 @@ func GenerateDexpreoptRule(ctx android.BuilderContext, globalSoong *GlobalSoongC
 	return rule, nil
 }
 
+// If dexpreopt is applicable to the module, returns whether dexpreopt is disabled. Otherwise, the
+// behavior is undefined.
+// When it returns true, dexpreopt artifacts will not be generated, but profile will still be
+// generated if profile-guided compilation is requested.
 func dexpreoptDisabled(ctx android.PathContext, global *GlobalConfig, module *ModuleConfig) bool {
 	if ctx.Config().UnbundledBuild() {
 		return true
 	}
 
+	if global.DisablePreopt {
+		return true
+	}
+
 	if contains(global.DisablePreoptModules, module.Name) {
 		return true
 	}

dexpreopt/testing.go

@@ -181,3 +181,10 @@ func FixtureDisableDexpreoptBootImages(disable bool) android.FixturePreparer {
 		dexpreoptConfig.DisablePreoptBootImages = disable
 	})
 }
+
+// FixtureDisableDexpreopt sets the DisablePreopt property in the global config.
+func FixtureDisableDexpreopt(disable bool) android.FixturePreparer {
+	return FixtureModifyGlobalConfig(func(_ android.PathContext, dexpreoptConfig *GlobalConfig) {
+		dexpreoptConfig.DisablePreopt = disable
+	})
+}