dev: introduce dev environments that enable compiler feature sets

1 files changed, 4 insertions, 6 deletions

diff --git a/src/Zcu.zig b/src/Zcu.zig
index dbc2e5a2c4..41311234d2 100644
--- a/src/Zcu.zig
+++ b/src/Zcu.zig
@@ -38,6 +38,7 @@ const Alignment = InternPool.Alignment;
 const AnalUnit = InternPool.AnalUnit;
 const BuiltinFn = std.zig.BuiltinFn;
 const LlvmObject = @import("codegen/llvm.zig").Object;
+const dev = @import("dev.zig");
 
 comptime {
     @setEvalBranchQuota(4000);
@@ -57,7 +58,7 @@ comp: *Compilation,
 /// Usually, the LlvmObject is managed by linker code, however, in the case
 /// that -fno-emit-bin is specified, the linker code never executes, so we
 /// store the LlvmObject here.
-llvm_object: ?*LlvmObject,
+llvm_object: if (dev.env.supports(.llvm_backend)) ?*LlvmObject else ?noreturn,
 
 /// Pointer to externally managed resource.
 root_mod: *Package.Module,
@@ -2403,10 +2404,7 @@ pub fn deinit(zcu: *Zcu) void {
     const pt: Zcu.PerThread = .{ .tid = .main, .zcu = zcu };
     const gpa = zcu.gpa;
 
-    if (zcu.llvm_object) |llvm_object| {
-        if (build_options.only_c) unreachable;
-        llvm_object.deinit();
-    }
+    if (zcu.llvm_object) |llvm_object| llvm_object.deinit();
 
     for (zcu.import_table.keys()) |key| {
         gpa.free(key);
@@ -3041,7 +3039,7 @@ pub fn deleteUnitExports(zcu: *Zcu, anal_unit: AnalUnit) void {
     // `updateExports` on flush).
     // This case is needed because in some rare edge cases, `Sema` wants to add and delete exports
     // within a single update.
-    if (!build_options.only_c) {
+    if (dev.env.supports(.incremental)) {
         for (exports, exports_base..) |exp, export_idx| {
             if (zcu.comp.bin_file) |lf| {
                 lf.deleteExport(exp.exported, exp.opts.name);