Commit 0b786059b5

@@ -12243,7 +12243,7 @@ const PackedCallingConvention = packed struct(u18) {
                 std.builtin.CallingConvention.RiscvInterruptOptions => .{
                     .tag = tag,
                     .incoming_stack_alignment = .fromByteUnits(pl.incoming_stack_alignment orelse 0),
-                    .extra = @intFromEnum(pl.level),
+                    .extra = @intFromEnum(pl.mode),
                 },
                 else => comptime unreachable,
             },
@@ -12251,12 +12251,11 @@ const PackedCallingConvention = packed struct(u18) {
     }
 
     fn unpack(cc: PackedCallingConvention) std.builtin.CallingConvention {
-        @setEvalBranchQuota(400_000);
         return switch (cc.tag) {
             inline else => |tag| @unionInit(
                 std.builtin.CallingConvention,
                 @tagName(tag),
-                switch (std.meta.FieldType(std.builtin.CallingConvention, tag)) {
+                switch (@FieldType(std.builtin.CallingConvention, @tagName(tag))) {
                     void => {},
                     std.builtin.CallingConvention.CommonOptions => .{
                         .incoming_stack_alignment = cc.incoming_stack_alignment.toByteUnits(),
@@ -12275,7 +12274,7 @@ const PackedCallingConvention = packed struct(u18) {
                     },
                     std.builtin.CallingConvention.RiscvInterruptOptions => .{
                         .incoming_stack_alignment = cc.incoming_stack_alignment.toByteUnits(),
-                        .level = @enumFromInt(cc.extra),
+                        .mode = @enumFromInt(cc.extra),
                     },
                     else => comptime unreachable,
                 },

@@ -31348,7 +31348,7 @@ fn callconvCoerceAllowed(
                     if (src_data.mode != dest_data.mode) return false;
                 },
                 std.builtin.CallingConvention.RiscvInterruptOptions => {
-                    if (src_data.level != dest_data.level) return false;
+                    if (src_data.mode != dest_data.mode) return false;
                 },
                 else => comptime unreachable,
             }

@@ -4495,8 +4495,6 @@ pub fn resolveLazy(
 /// This is useful for accessing `std.builtin` structures received from comptime logic.
 /// `val` must be fully resolved.
 pub fn interpret(val: Value, comptime T: type, pt: Zcu.PerThread) error{ OutOfMemory, UndefinedValue, TypeMismatch }!T {
-    @setEvalBranchQuota(400_000);
-
     const zcu = pt.zcu;
     const ip = &zcu.intern_pool;
     const ty = val.typeOf(zcu);
@@ -4552,13 +4550,13 @@ pub fn interpret(val: Value, comptime T: type, pt: Zcu.PerThread) error{ OutOfMe
             if (union_obj.field_types.len != @"union".fields.len) return error.TypeMismatch;
             const tag_val = val.unionTag(zcu) orelse return error.TypeMismatch;
             const tag = try tag_val.interpret(@"union".tag_type.?, pt);
-            switch (tag) {
-                inline else => |tag_comptime| {
-                    const Payload = std.meta.FieldType(T, tag_comptime);
-                    const payload = try val.unionValue(zcu).interpret(Payload, pt);
-                    return @unionInit(T, @tagName(tag_comptime), payload);
-                },
-            }
+            return switch (tag) {
+                inline else => |tag_comptime| @unionInit(
+                    T,
+                    @tagName(tag_comptime),
+                    try val.unionValue(zcu).interpret(@FieldType(T, @tagName(tag_comptime)), pt),
+                ),
+            };
         },
 
         .@"struct" => |@"struct"| {
@@ -4577,8 +4575,6 @@ pub fn interpret(val: Value, comptime T: type, pt: Zcu.PerThread) error{ OutOfMe
 /// within the compilation. This is useful for passing `std.builtin` structures in the compiler back to the compilation.
 /// This is the inverse of `interpret`.
 pub fn uninterpret(val: anytype, ty: Type, pt: Zcu.PerThread) error{ OutOfMemory, TypeMismatch }!Value {
-    @setEvalBranchQuota(400_000);
-
     const T = @TypeOf(val);
 
     const zcu = pt.zcu;