compiler: Fix computation of Compilation.Config.any_unwind_tables.

This moves the default value logic to Package.Module.create() instead and makes
it so that Compilation.Config.any_unwind_tables is computed similarly to
any_sanitize_thread, any_fuzz, etc. It turns out that for any_unwind_tables, we
only actually care if unwind tables are enabled at all, not at what level.

1 files changed, 12 insertions, 4 deletions

diff --git a/src/Package/Module.zig b/src/Package/Module.zig
index 433a9b6ade..62b7f075dd 100644
--- a/src/Package/Module.zig
+++ b/src/Package/Module.zig
@@ -112,7 +112,7 @@ pub fn create(arena: Allocator, options: CreateOptions) !*Package.Module {
     if (options.inherited.sanitize_thread == true) assert(options.global.any_sanitize_thread);
     if (options.inherited.fuzz == true) assert(options.global.any_fuzz);
     if (options.inherited.single_threaded == false) assert(options.global.any_non_single_threaded);
-    if (options.inherited.unwind_tables) |uwt| if (uwt != .none) assert(options.global.any_unwind_tables != .none);
+    if (options.inherited.unwind_tables) |uwt| if (uwt != .none) assert(options.global.any_unwind_tables);
     if (options.inherited.error_tracing == true) assert(options.global.any_error_tracing);
 
     const resolved_target = options.inherited.resolved_target orelse options.parent.?.resolved_target;
@@ -121,9 +121,6 @@ pub fn create(arena: Allocator, options: CreateOptions) !*Package.Module {
     const optimize_mode = options.inherited.optimize_mode orelse
         if (options.parent) |p| p.optimize_mode else .Debug;
 
-    const unwind_tables = options.inherited.unwind_tables orelse
-        if (options.parent) |p| p.unwind_tables else options.global.any_unwind_tables;
-
     const strip = b: {
         if (options.inherited.strip) |x| break :b x;
         if (options.parent) |p| break :b p.strip;
@@ -220,6 +217,17 @@ pub fn create(arena: Allocator, options: CreateOptions) !*Package.Module {
         break :b false;
     };
 
+    const unwind_tables = b: {
+        if (options.inherited.unwind_tables) |x| break :b x;
+        if (options.parent) |p| break :b p.unwind_tables;
+
+        break :b target_util.defaultUnwindTables(
+            target,
+            options.global.link_libunwind,
+            sanitize_thread or options.global.any_sanitize_thread,
+        );
+    };
+
     const fuzz = b: {
         if (options.inherited.fuzz) |x| break :b x;
         if (options.parent) |p| break :b p.fuzz;