test: Enable -Dtest-target-filter=... to work for test-cases and test-translate-c.

build.zig

@@ -442,7 +442,7 @@ pub fn build(b: *std.Build) !void {
     test_step.dependOn(check_fmt);
 
     const test_cases_step = b.step("test-cases", "Run the main compiler test cases");
-    try tests.addCases(b, test_cases_step, test_filters, target, .{
+    try tests.addCases(b, test_cases_step, test_filters, test_target_filters, target, .{
         .skip_translate_c = skip_translate_c,
         .skip_run_translated_c = skip_run_translated_c,
     }, .{

test/src/Cases.zig

@@ -539,13 +539,14 @@ pub fn lowerToTranslateCSteps(
     b: *std.Build,
     parent_step: *std.Build.Step,
     test_filters: []const []const u8,
+    test_target_filters: []const []const u8,
     target: std.Build.ResolvedTarget,
     translate_c_options: TranslateCOptions,
 ) void {
     const tests = @import("../tests.zig");
     const test_translate_c_step = b.step("test-translate-c", "Run the C translation tests");
     if (!translate_c_options.skip_translate_c) {
-        tests.addTranslateCTests(b, test_translate_c_step, test_filters);
+        tests.addTranslateCTests(b, test_translate_c_step, test_filters, test_target_filters);
         parent_step.dependOn(test_translate_c_step);
     }
 
@@ -620,6 +621,7 @@ pub fn lowerToBuildSteps(
     b: *std.Build,
     parent_step: *std.Build.Step,
     test_filters: []const []const u8,
+    test_target_filters: []const []const u8,
 ) void {
     const host = std.zig.system.resolveTargetQuery(.{}) catch |err|
         std.debug.panic("unable to detect native host: {s}\n", .{@errorName(err)});
@@ -648,6 +650,14 @@ pub fn lowerToBuildSteps(
             if (std.mem.indexOf(u8, case.name, test_filter)) |_| break;
         } else if (test_filters.len > 0) continue;
 
+        const triple_txt = case.target.result.zigTriple(b.allocator) catch @panic("OOM");
+
+        if (test_target_filters.len > 0) {
+            for (test_target_filters) |filter| {
+                if (std.mem.indexOf(u8, triple_txt, filter) != null) break;
+            } else continue;
+        }
+
         const writefiles = b.addWriteFiles();
         var file_sources = std.StringHashMap(std.Build.LazyPath).init(b.allocator);
         defer file_sources.deinit();
@@ -740,7 +750,7 @@ pub fn lowerToBuildSteps(
                         "--",
                         "-lc",
                         "-target",
-                        case.target.result.zigTriple(b.allocator) catch @panic("OOM"),
+                        triple_txt,
                     });
                     run_c.addArtifactArg(artifact);
                     break :run_step run_c;

test/src/TranslateC.zig

@@ -2,6 +2,7 @@ b: *std.Build,
 step: *std.Build.Step,
 test_index: usize,
 test_filters: []const []const u8,
+test_target_filters: []const []const u8,
 
 const TestCase = struct {
     name: []const u8,
@@ -92,6 +93,16 @@ pub fn addCase(self: *TranslateCContext, case: *const TestCase) void {
         if (mem.indexOf(u8, annotated_case_name, test_filter)) |_| break;
     } else if (self.test_filters.len > 0) return;
 
+    const target = b.resolveTargetQuery(case.target);
+
+    if (self.test_target_filters.len > 0) {
+        const triple_txt = target.result.zigTriple(b.allocator) catch @panic("OOM");
+
+        for (self.test_target_filters) |filter| {
+            if (std.mem.indexOf(u8, triple_txt, filter) != null) break;
+        } else return;
+    }
+
     const write_src = b.addWriteFiles();
     const first_src = case.sources.items[0];
     const root_source_file = write_src.add(first_src.filename, first_src.source);
@@ -101,7 +112,7 @@ pub fn addCase(self: *TranslateCContext, case: *const TestCase) void {
 
     const translate_c = b.addTranslateC(.{
         .root_source_file = root_source_file,
-        .target = b.resolveTargetQuery(case.target),
+        .target = target,
         .optimize = .Debug,
     });
 

test/tests.zig

@@ -1237,18 +1237,22 @@ pub fn addAssembleAndLinkTests(b: *std.Build, test_filters: []const []const u8,
     return cases.step;
 }
 
-pub fn addTranslateCTests(b: *std.Build, parent_step: *std.Build.Step, test_filters: []const []const u8) void {
+pub fn addTranslateCTests(
+    b: *std.Build,
+    parent_step: *std.Build.Step,
+    test_filters: []const []const u8,
+    test_target_filters: []const []const u8,
+) void {
     const cases = b.allocator.create(TranslateCContext) catch @panic("OOM");
     cases.* = TranslateCContext{
         .b = b,
         .step = parent_step,
         .test_index = 0,
         .test_filters = test_filters,
+        .test_target_filters = test_target_filters,
     };
 
     translate_c.addCases(cases);
-
-    return;
 }
 
 pub fn addRunTranslatedCTests(
@@ -1267,8 +1271,6 @@ pub fn addRunTranslatedCTests(
     };
 
     run_translated_c.addCases(cases);
-
-    return;
 }
 
 const ModuleTestOptions = struct {
@@ -1565,6 +1567,7 @@ pub fn addCases(
     b: *std.Build,
     parent_step: *Step,
     test_filters: []const []const u8,
+    test_target_filters: []const []const u8,
     target: std.Build.ResolvedTarget,
     translate_c_options: @import("src/Cases.zig").TranslateCOptions,
     build_options: @import("cases.zig").BuildOptions,
@@ -1580,12 +1583,13 @@ pub fn addCases(
     cases.addFromDir(dir, b);
     try @import("cases.zig").addCases(&cases, build_options, b);
 
-    cases.lowerToTranslateCSteps(b, parent_step, test_filters, target, translate_c_options);
+    cases.lowerToTranslateCSteps(b, parent_step, test_filters, test_target_filters, target, translate_c_options);
 
     cases.lowerToBuildSteps(
         b,
         parent_step,
         test_filters,
+        test_target_filters,
     );
 }