[gn] Add new groups() for various targets, grouped by target kind.

Will simplify the chromium dependencies.

Also add an output name to the WGSL fuzzer.

Change-Id: If1b83569a3e22b23a090d2607042eb11d613ad24
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/155440
Auto-Submit: Ben Clayton <bclayton@google.com>
Kokoro: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>

BUILD.gn

@@ -15,35 +15,52 @@
 import("scripts/dawn_overrides_with_defaults.gni")
 import("scripts/tint_overrides_with_defaults.gni")
 
+group("benchmarks") {
+  testonly = true
+  deps = [ "src/tint:benchmarks" ]
+}
+
 group("fuzzers") {
   testonly = true
   deps = [
     "src/dawn/fuzzers",
-    "src/tint/cmd/fuzz/wgsl",
-    "src/tint/fuzzers",
+    "src/tint:fuzzers",
+  ]
+}
+
+group("libs") {
+  deps = [
+    "src/dawn/native:webgpu_dawn",
+    "src/tint:libs",
+  ]
+}
+
+group("tests") {
+  testonly = true
+  deps = [
+    "src/dawn/tests",
+    "src/tint:tests",
+  ]
+}
+
+group("cmds") {
+  deps = [
+    "src/dawn/samples",
+    "src/tint:cmds",
   ]
 }
 
 group("all") {
   testonly = true
   deps = [
+    ":benchmarks",
     ":fuzzers",
-    "src/dawn/native:webgpu_dawn",
-    "src/dawn/tests",
-    "src/tint/api",
+    ":libs",
+    ":tests",
   ]
-  if (tint_build_unittests) {
-    deps += [ "src/tint/cmd/test:test_cmd" ]
-  }
-  if (tint_build_benchmarks) {
-    deps += [ "src/tint/cmd/bench:bench_cmd" ]
-  }
+
   if (dawn_standalone) {
-    deps += [
-      "src/dawn/samples",
-      "src/tint/cmd/remote_compile",
-      "src/tint/cmd/tint",
-    ]
+    deps += [ ":cmds" ]
   }
 }
 

src/tint/BUILD.gn

@@ -233,11 +233,50 @@ if (tint_has_fuzzers) {
 }
 
 ###############################################################################
-# Aliases
+# Groups
 ###############################################################################
-if (tint_build_unittests) {
-  group("tint_unittests") {
-    testonly = true
-    public_deps = [ "${tint_src_dir}/cmd/test:test_cmd" ]
+group("libs") {
+  deps = [ "${tint_src_dir}/api" ]
+}
+
+group("cmds") {
+  deps = [ "${tint_src_dir}/cmd/tint" ]
+  if (dawn_standalone) {
+    deps += [ "${tint_src_dir}/cmd/remote_compile" ]
+  }
+}
+
+group("fuzzers") {
+  testonly = true
+  deps = []
+  if (tint_has_fuzzers) {
+    deps += [
+      "${tint_src_dir}/cmd/fuzz/wgsl",
+      "${tint_src_dir}/fuzzers",
+    ]
+  }
+}
+
+group("tests") {
+  testonly = true
+  deps = []
+  if (tint_build_unittests) {
+    deps += [ "${tint_src_dir}/cmd/test:test_cmd" ]
+  }
+}
+
+group("benchmarks") {
+  testonly = true
+  deps = []
+  if (tint_build_benchmarks) {
+    deps += [ "${tint_src_dir}/cmd/bench:bench_cmd" ]
   }
 }
+
+###############################################################################
+# Aliases
+###############################################################################
+group("tint_unittests") {
+  testonly = true
+  public_deps = [ ":tests" ]
+}

src/tint/cmd/fuzz/wgsl/BUILD.cfg

@@ -0,0 +1,11 @@
+{
+    "fuzz_cmd": {
+        /* The Tint fuzzer executable for WGSL-input. */
+        "OutputName": "tint_wgsl_fuzzer",
+        "AdditionalDependencies": {
+            /* Depend on all the fuzz targets to pull them all together. */
+            "Internal": [ "**:fuzz" ]
+        }
+    }
+}
+

src/tint/cmd/fuzz/wgsl/BUILD.cmake

@@ -52,6 +52,8 @@ tint_target_add_dependencies(tint_cmd_fuzz_wgsl_fuzz_cmd fuzz_cmd
   tint_utils_traits
 )
 
+tint_target_set_output_name(tint_cmd_fuzz_wgsl_fuzz_cmd fuzz_cmd "tint_wgsl_fuzzer")
+
 ################################################################################
 # Target:    tint_cmd_fuzz_wgsl_fuzz
 # Kind:      fuzz

src/tint/cmd/fuzz/wgsl/BUILD.gn

@@ -58,6 +58,7 @@ tint_fuzz_source_set("fuzz") {
 }
 
 tint_fuzzer_test("wgsl") {
+  output_name = "tint_wgsl_fuzzer"
   sources = [ "main_fuzz.cc" ]
   deps = [
     "${tint_src_dir}/cmd/fuzz/wgsl:fuzz",