x86_64: implement error set and enum safety

This is all of the expected 0.14.0 progress on #21530, which can now be
postponed once this commit is merged.

This required rewriting the (un)wrap operations since the original
implementations were extremely buggy.

Also adds an easy way to retrigger Sema OPV bugs so that I don't have to
keep updating #22419 all the time.

150 files changed, 150 insertions, 150 deletions

diff --git a/test/cases/array_in_anon_struct.zig b/test/cases/array_in_anon_struct.zig
index 6164e70569..5961b3f723 100644
--- a/test/cases/array_in_anon_struct.zig
+++ b/test/cases/array_in_anon_struct.zig
@@ -18,5 +18,5 @@ pub fn main() !void {
 }
 
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/compile_errors/addition_with_non_numbers.zig b/test/cases/compile_errors/addition_with_non_numbers.zig
index d1401d95eb..9b2745dc4a 100644
--- a/test/cases/compile_errors/addition_with_non_numbers.zig
+++ b/test/cases/compile_errors/addition_with_non_numbers.zig
@@ -8,7 +8,7 @@ export fn entry() usize {
 }
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :4:29: error: invalid operands to binary expression: 'struct' and 'struct'
diff --git a/test/cases/compile_errors/asm_at_compile_time.zig b/test/cases/compile_errors/asm_at_compile_time.zig
index 1d588a7df4..9c34b58298 100644
--- a/test/cases/compile_errors/asm_at_compile_time.zig
+++ b/test/cases/compile_errors/asm_at_compile_time.zig
@@ -11,7 +11,7 @@ fn doSomeAsm() void {
 }
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :6:5: error: unable to evaluate comptime expression
diff --git a/test/cases/compile_errors/asm_output_to_const.zig b/test/cases/compile_errors/asm_output_to_const.zig
index aa20a489aa..ec0dcc2ece 100644
--- a/test/cases/compile_errors/asm_output_to_const.zig
+++ b/test/cases/compile_errors/asm_output_to_const.zig
@@ -8,7 +8,7 @@ export fn foo() void {
 }
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :4:5: error: asm cannot output to const local 'f'
diff --git a/test/cases/compile_errors/call_from_naked_func.zig b/test/cases/compile_errors/call_from_naked_func.zig
index 7803974d01..a4a92388dc 100644
--- a/test/cases/compile_errors/call_from_naked_func.zig
+++ b/test/cases/compile_errors/call_from_naked_func.zig
@@ -17,7 +17,7 @@ export fn comptimeBuiltinCall() callconv(.Naked) void {
 fn f() void {}
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :2:6: error: runtime call not allowed in naked function
diff --git a/test/cases/compile_errors/calling_function_with_naked_calling_convention.zig b/test/cases/compile_errors/calling_function_with_naked_calling_convention.zig
index ea4e42f15d..ca49983558 100644
--- a/test/cases/compile_errors/calling_function_with_naked_calling_convention.zig
+++ b/test/cases/compile_errors/calling_function_with_naked_calling_convention.zig
@@ -4,7 +4,7 @@ export fn entry() void {
 fn foo() callconv(.naked) void {}
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :2:5: error: unable to call function with calling convention 'naked'
diff --git a/test/cases/compile_errors/cast_negative_value_to_unsigned_integer.zig b/test/cases/compile_errors/cast_negative_value_to_unsigned_integer.zig
index 57206b267f..427832caab 100644
--- a/test/cases/compile_errors/cast_negative_value_to_unsigned_integer.zig
+++ b/test/cases/compile_errors/cast_negative_value_to_unsigned_integer.zig
@@ -10,7 +10,7 @@ export fn entry1() void {
 }
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :3:36: error: type 'u32' cannot represent integer value '-1'
diff --git a/test/cases/compile_errors/compare_optional_to_non_optional_with_incomparable_type.zig b/test/cases/compile_errors/compare_optional_to_non_optional_with_incomparable_type.zig
index e9746f7e16..9416cf8309 100644
--- a/test/cases/compile_errors/compare_optional_to_non_optional_with_incomparable_type.zig
+++ b/test/cases/compile_errors/compare_optional_to_non_optional_with_incomparable_type.zig
@@ -5,7 +5,7 @@ export fn entry() void {
 }
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :4:12: error: operator == not allowed for type '?[3]i32'
diff --git a/test/cases/compile_errors/compile_log.zig b/test/cases/compile_errors/compile_log.zig
index bbc4b82657..3a27d5b013 100644
--- a/test/cases/compile_errors/compile_log.zig
+++ b/test/cases/compile_errors/compile_log.zig
@@ -13,7 +13,7 @@ export fn baz() void {
 }
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :6:5: error: found compile log statement
diff --git a/test/cases/compile_errors/compile_log_statement_warning_deduplication_in_generic_fn.zig b/test/cases/compile_errors/compile_log_statement_warning_deduplication_in_generic_fn.zig
index 2e2addbc2e..c2fb78f62c 100644
--- a/test/cases/compile_errors/compile_log_statement_warning_deduplication_in_generic_fn.zig
+++ b/test/cases/compile_errors/compile_log_statement_warning_deduplication_in_generic_fn.zig
@@ -10,7 +10,7 @@ fn inner(comptime n: usize) void {
 }
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :8:9: error: found compile log statement
diff --git a/test/cases/compile_errors/compile_time_division_by_zero.zig b/test/cases/compile_errors/compile_time_division_by_zero.zig
index 8954ace9ab..aad953ab73 100644
--- a/test/cases/compile_errors/compile_time_division_by_zero.zig
+++ b/test/cases/compile_errors/compile_time_division_by_zero.zig
@@ -8,7 +8,7 @@ export fn entry() usize {
 }
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :3:16: error: division by zero here causes undefined behavior
diff --git a/test/cases/compile_errors/compile_time_null_ptr_cast.zig b/test/cases/compile_errors/compile_time_null_ptr_cast.zig
index 2142521fd1..88441b294e 100644
--- a/test/cases/compile_errors/compile_time_null_ptr_cast.zig
+++ b/test/cases/compile_errors/compile_time_null_ptr_cast.zig
@@ -5,7 +5,7 @@ comptime {
 }
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :3:32: error: null pointer casted to type '*i32'
diff --git a/test/cases/compile_errors/compile_time_undef_ptr_cast.zig b/test/cases/compile_errors/compile_time_undef_ptr_cast.zig
index 9e6bfd8003..97c0554881 100644
--- a/test/cases/compile_errors/compile_time_undef_ptr_cast.zig
+++ b/test/cases/compile_errors/compile_time_undef_ptr_cast.zig
@@ -6,7 +6,7 @@ comptime {
 }
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :3:32: error: use of undefined value here causes undefined behavior
diff --git a/test/cases/compile_errors/discarded_array_bad_elem_type.zig b/test/cases/compile_errors/discarded_array_bad_elem_type.zig
index edc64e40b0..5893a2aa4b 100644
--- a/test/cases/compile_errors/discarded_array_bad_elem_type.zig
+++ b/test/cases/compile_errors/discarded_array_bad_elem_type.zig
@@ -6,7 +6,7 @@ export fn foo() void {
 }
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :3:9: error: expected type 'u16', found '*const [5:0]u8'
diff --git a/test/cases/compile_errors/duplicate_error_in_switch.zig b/test/cases/compile_errors/duplicate_error_in_switch.zig
index aaaed396fa..7d5ce388b9 100644
--- a/test/cases/compile_errors/duplicate_error_in_switch.zig
+++ b/test/cases/compile_errors/duplicate_error_in_switch.zig
@@ -15,7 +15,7 @@ fn foo(x: i32) !void {
 }
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :5:9: error: duplicate switch value
diff --git a/test/cases/compile_errors/error_in_comptime_call_in_container_level_initializer.zig b/test/cases/compile_errors/error_in_comptime_call_in_container_level_initializer.zig
index 9918b771b3..9b8b35ad60 100644
--- a/test/cases/compile_errors/error_in_comptime_call_in_container_level_initializer.zig
+++ b/test/cases/compile_errors/error_in_comptime_call_in_container_level_initializer.zig
@@ -15,7 +15,7 @@ pub export fn entry() void {
 }
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :9:48: error: caught unexpected error 'InvalidVersion'
diff --git a/test/cases/compile_errors/error_not_handled_in_switch.zig b/test/cases/compile_errors/error_not_handled_in_switch.zig
index 04f122b11d..e344452296 100644
--- a/test/cases/compile_errors/error_not_handled_in_switch.zig
+++ b/test/cases/compile_errors/error_not_handled_in_switch.zig
@@ -13,7 +13,7 @@ fn foo(x: i32) !void {
 }
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :2:26: error: switch must handle all possibilities
diff --git a/test/cases/compile_errors/error_set_membership.zig b/test/cases/compile_errors/error_set_membership.zig
index f8fa18f7f8..67826f4db9 100644
--- a/test/cases/compile_errors/error_set_membership.zig
+++ b/test/cases/compile_errors/error_set_membership.zig
@@ -24,7 +24,7 @@ pub fn main() Error!void {
 }
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :23:29: error: expected type 'error{InvalidCharacter}', found '@typeInfo(@typeInfo(@TypeOf(tmp.fooey)).@"fn".return_type.?).error_union.error_set'
diff --git a/test/cases/compile_errors/exact division failure.zig b/test/cases/compile_errors/exact division failure.zig
index d134e0e2fb..fee8219a7b 100644
--- a/test/cases/compile_errors/exact division failure.zig
+++ b/test/cases/compile_errors/exact division failure.zig
@@ -4,7 +4,7 @@ comptime {
 }
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :2:15: error: exact division produced remainder
diff --git a/test/cases/compile_errors/exceeded_maximum_bit_width_of_integer.zig b/test/cases/compile_errors/exceeded_maximum_bit_width_of_integer.zig
index b002fca9c9..b7d5c95c25 100644
--- a/test/cases/compile_errors/exceeded_maximum_bit_width_of_integer.zig
+++ b/test/cases/compile_errors/exceeded_maximum_bit_width_of_integer.zig
@@ -8,7 +8,7 @@ export fn entry2() void {
 }
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :2:15: error: primitive integer type 'u65536' exceeds maximum bit width of 65535
diff --git a/test/cases/compile_errors/export_with_empty_name_string.zig b/test/cases/compile_errors/export_with_empty_name_string.zig
index a2ab0176ac..ce6ba0f412 100644
--- a/test/cases/compile_errors/export_with_empty_name_string.zig
+++ b/test/cases/compile_errors/export_with_empty_name_string.zig
@@ -4,7 +4,7 @@ comptime {
 }
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :3:25: error: exported symbol name cannot be empty
diff --git a/test/cases/compile_errors/fieldParentPtr-non_pointer.zig b/test/cases/compile_errors/fieldParentPtr-non_pointer.zig
index 31f15783d8..c98a317400 100644
--- a/test/cases/compile_errors/fieldParentPtr-non_pointer.zig
+++ b/test/cases/compile_errors/fieldParentPtr-non_pointer.zig
@@ -4,7 +4,7 @@ export fn foo(a: *i32) Foo {
 }
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :3:12: error: expected pointer type, found 'i32'
diff --git a/test/cases/compile_errors/float exact division failure.zig b/test/cases/compile_errors/float exact division failure.zig
index c09defc56e..d96c96f78c 100644
--- a/test/cases/compile_errors/float exact division failure.zig
+++ b/test/cases/compile_errors/float exact division failure.zig
@@ -4,7 +4,7 @@ comptime {
 }
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :2:15: error: exact division produced remainder
diff --git a/test/cases/compile_errors/function_call_assigned_to_incorrect_type.zig b/test/cases/compile_errors/function_call_assigned_to_incorrect_type.zig
index e2bfd4fd6d..5b49dc16b7 100644
--- a/test/cases/compile_errors/function_call_assigned_to_incorrect_type.zig
+++ b/test/cases/compile_errors/function_call_assigned_to_incorrect_type.zig
@@ -7,7 +7,7 @@ fn concat() [16]f32 {
 }
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :3:17: error: expected type '[4]f32', found '[16]f32'
diff --git a/test/cases/compile_errors/function_prototype_with_no_body.zig b/test/cases/compile_errors/function_prototype_with_no_body.zig
index 45bafa75f2..12eeda58ca 100644
--- a/test/cases/compile_errors/function_prototype_with_no_body.zig
+++ b/test/cases/compile_errors/function_prototype_with_no_body.zig
@@ -4,7 +4,7 @@ export fn entry() void {
 }
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :1:1: error: non-extern function has no body
diff --git a/test/cases/compile_errors/generic_instantiation_failure.zig b/test/cases/compile_errors/generic_instantiation_failure.zig
index d820f8f410..9b82fa8b4f 100644
--- a/test/cases/compile_errors/generic_instantiation_failure.zig
+++ b/test/cases/compile_errors/generic_instantiation_failure.zig
@@ -19,7 +19,7 @@ pub export fn entry() void {
 }
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :18:43: error: value of type 'type' ignored
diff --git a/test/cases/compile_errors/generic_instantiation_failure_in_generic_function_return_type.zig b/test/cases/compile_errors/generic_instantiation_failure_in_generic_function_return_type.zig
index ee1dd78343..4316b6fc79 100644
--- a/test/cases/compile_errors/generic_instantiation_failure_in_generic_function_return_type.zig
+++ b/test/cases/compile_errors/generic_instantiation_failure_in_generic_function_return_type.zig
@@ -36,7 +36,7 @@ pub fn is(comptime id: std.builtin.TypeId) TraitFn {
 }
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :8:48: error: expected type 'type', found 'bool'
diff --git a/test/cases/compile_errors/implicit_cast_from_array_to_mutable_slice.zig b/test/cases/compile_errors/implicit_cast_from_array_to_mutable_slice.zig
index 1efc375425..1a77f8f129 100644
--- a/test/cases/compile_errors/implicit_cast_from_array_to_mutable_slice.zig
+++ b/test/cases/compile_errors/implicit_cast_from_array_to_mutable_slice.zig
@@ -7,7 +7,7 @@ export fn entry() void {
 }
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :6:9: error: array literal requires address-of operator (&) to coerce to slice type '[]i32'
diff --git a/test/cases/compile_errors/implicit_cast_from_f64_to_f32.zig b/test/cases/compile_errors/implicit_cast_from_f64_to_f32.zig
index a8d4675ac8..6e2085302c 100644
--- a/test/cases/compile_errors/implicit_cast_from_f64_to_f32.zig
+++ b/test/cases/compile_errors/implicit_cast_from_f64_to_f32.zig
@@ -11,7 +11,7 @@ export fn entry2() void {
 }
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :2:14: error: expected type 'f32', found 'f64'
diff --git a/test/cases/compile_errors/int_to_err_non_global_invalid_number.zig b/test/cases/compile_errors/int_to_err_non_global_invalid_number.zig
index 829192ab8d..1e7568119f 100644
--- a/test/cases/compile_errors/int_to_err_non_global_invalid_number.zig
+++ b/test/cases/compile_errors/int_to_err_non_global_invalid_number.zig
@@ -13,7 +13,7 @@ comptime {
 }
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :11:21: error: 'error.B' not a member of error set 'error{A,C}'
diff --git a/test/cases/compile_errors/invalid_peer_type_resolution.zig b/test/cases/compile_errors/invalid_peer_type_resolution.zig
index c8cef83cac..51b1b48807 100644
--- a/test/cases/compile_errors/invalid_peer_type_resolution.zig
+++ b/test/cases/compile_errors/invalid_peer_type_resolution.zig
@@ -24,7 +24,7 @@ export fn incompatiblePointers4() void {
 }
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :5:9: error: incompatible types: '?@Vector(10, i32)' and '@Vector(11, i32)'
diff --git a/test/cases/compile_errors/invalid_underscore_placement_in_int_literal-1.zig b/test/cases/compile_errors/invalid_underscore_placement_in_int_literal-1.zig
index d01e8901f8..2eada20a1b 100644
--- a/test/cases/compile_errors/invalid_underscore_placement_in_int_literal-1.zig
+++ b/test/cases/compile_errors/invalid_underscore_placement_in_int_literal-1.zig
@@ -4,7 +4,7 @@ fn main() void {
 }
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :2:23: error: trailing digit separator
diff --git a/test/cases/compile_errors/leading_zero_in_integer.zig b/test/cases/compile_errors/leading_zero_in_integer.zig
index 2edc8fac3c..1662e364b3 100644
--- a/test/cases/compile_errors/leading_zero_in_integer.zig
+++ b/test/cases/compile_errors/leading_zero_in_integer.zig
@@ -16,7 +16,7 @@ export fn entry4() void {
 }
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :2:15: error: primitive integer type 'u000123' has leading zero
diff --git a/test/cases/compile_errors/load_vector_pointer_with_unknown_runtime_index.zig b/test/cases/compile_errors/load_vector_pointer_with_unknown_runtime_index.zig
index 7cef1c7516..0adf05e9ee 100644
--- a/test/cases/compile_errors/load_vector_pointer_with_unknown_runtime_index.zig
+++ b/test/cases/compile_errors/load_vector_pointer_with_unknown_runtime_index.zig
@@ -11,7 +11,7 @@ fn loadv(ptr: anytype) i31 {
 }
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :10:15: error: unable to determine vector element index of type '*align(16:0:4:?) i31'
diff --git a/test/cases/compile_errors/method_call_with_first_arg_type_wrong_container.zig b/test/cases/compile_errors/method_call_with_first_arg_type_wrong_container.zig
index 0653bda3ea..dada6eef05 100644
--- a/test/cases/compile_errors/method_call_with_first_arg_type_wrong_container.zig
+++ b/test/cases/compile_errors/method_call_with_first_arg_type_wrong_container.zig
@@ -24,7 +24,7 @@ export fn foo() void {
 }
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :23:6: error: no field or member function named 'init' in 'tmp.List'
diff --git a/test/cases/compile_errors/missing_const_in_slice_with_nested_array_type.zig b/test/cases/compile_errors/missing_const_in_slice_with_nested_array_type.zig
index 8285d344e2..44ac58f3d4 100644
--- a/test/cases/compile_errors/missing_const_in_slice_with_nested_array_type.zig
+++ b/test/cases/compile_errors/missing_const_in_slice_with_nested_array_type.zig
@@ -12,7 +12,7 @@ export fn entry() void {
 }
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :4:26: error: array literal requires address-of operator (&) to coerce to slice type '[][2]f32'
diff --git a/test/cases/compile_errors/missing_main_fn_in_executable.zig b/test/cases/compile_errors/missing_main_fn_in_executable.zig
index 6eae093846..75d5ef352f 100644
--- a/test/cases/compile_errors/missing_main_fn_in_executable.zig
+++ b/test/cases/compile_errors/missing_main_fn_in_executable.zig
@@ -1,5 +1,5 @@
 // error
-// backend=llvm
+// backend=stage2
 // target=x86_64-linux
 // output_mode=Exe
 //
diff --git a/test/cases/compile_errors/nested_error_set_mismatch.zig b/test/cases/compile_errors/nested_error_set_mismatch.zig
index 3addd5ee43..458f9f6439 100644
--- a/test/cases/compile_errors/nested_error_set_mismatch.zig
+++ b/test/cases/compile_errors/nested_error_set_mismatch.zig
@@ -11,7 +11,7 @@ fn foo() ?OtherError!i32 {
 }
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :5:34: error: expected type '?error{NextError}!i32', found '?error{OutOfMemory}!i32'
diff --git a/test/cases/compile_errors/nested_generic_function_param_type_mismatch.zig b/test/cases/compile_errors/nested_generic_function_param_type_mismatch.zig
index 93718771b4..f2825e92c7 100644
--- a/test/cases/compile_errors/nested_generic_function_param_type_mismatch.zig
+++ b/test/cases/compile_errors/nested_generic_function_param_type_mismatch.zig
@@ -16,7 +16,7 @@ pub export fn entry() void {
 }
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :15:28: error: expected type '*const fn (type, u8, u8) u32', found '*const fn (void, u8, u8) u32'
diff --git a/test/cases/compile_errors/packed_struct_backing_int_wrong.zig b/test/cases/compile_errors/packed_struct_backing_int_wrong.zig
index cd1b4ec11c..71f77209ad 100644
--- a/test/cases/compile_errors/packed_struct_backing_int_wrong.zig
+++ b/test/cases/compile_errors/packed_struct_backing_int_wrong.zig
@@ -43,7 +43,7 @@ export fn entry7() void {
 }
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :2:31: error: backing integer type 'u32' has bit size 32 but the struct fields have a total bit size of 29
diff --git a/test/cases/compile_errors/packed_struct_with_fields_of_not_allowed_types.zig b/test/cases/compile_errors/packed_struct_with_fields_of_not_allowed_types.zig
index fe86990d31..be54bc5c7e 100644
--- a/test/cases/compile_errors/packed_struct_with_fields_of_not_allowed_types.zig
+++ b/test/cases/compile_errors/packed_struct_with_fields_of_not_allowed_types.zig
@@ -78,7 +78,7 @@ export fn entry14() void {
 }
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :3:12: error: packed structs cannot contain fields of type 'anyerror'
diff --git a/test/cases/compile_errors/private_main_fn.zig b/test/cases/compile_errors/private_main_fn.zig
index a867e14ef9..d02f41ae9e 100644
--- a/test/cases/compile_errors/private_main_fn.zig
+++ b/test/cases/compile_errors/private_main_fn.zig
@@ -1,7 +1,7 @@
 fn main() void {}
 
 // error
-// backend=llvm
+// backend=stage2
 // target=x86_64-linux
 // output_mode=Exe
 //
diff --git a/test/cases/compile_errors/ptrcast_to_non-pointer.zig b/test/cases/compile_errors/ptrcast_to_non-pointer.zig
index ec93dc12c2..0a1a4b082e 100644
--- a/test/cases/compile_errors/ptrcast_to_non-pointer.zig
+++ b/test/cases/compile_errors/ptrcast_to_non-pointer.zig
@@ -3,7 +3,7 @@ export fn entry(a: *i32) usize {
 }
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :2:12: error: expected pointer type, found 'usize'
diff --git a/test/cases/compile_errors/range_operator_in_switch_used_on_error_set.zig b/test/cases/compile_errors/range_operator_in_switch_used_on_error_set.zig
index 89aa98ebad..65f67c7488 100644
--- a/test/cases/compile_errors/range_operator_in_switch_used_on_error_set.zig
+++ b/test/cases/compile_errors/range_operator_in_switch_used_on_error_set.zig
@@ -13,7 +13,7 @@ fn foo(x: i32) !void {
 }
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :2:34: error: ranges not allowed when switching on type '@typeInfo(@typeInfo(@TypeOf(tmp.foo)).@"fn".return_type.?).error_union.error_set'
diff --git a/test/cases/compile_errors/reassign_to_array_parameter.zig b/test/cases/compile_errors/reassign_to_array_parameter.zig
index ec7db76cbd..331cbadc30 100644
--- a/test/cases/compile_errors/reassign_to_array_parameter.zig
+++ b/test/cases/compile_errors/reassign_to_array_parameter.zig
@@ -6,7 +6,7 @@ export fn entry() void {
 }
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :2:5: error: cannot assign to constant
diff --git a/test/cases/compile_errors/reassign_to_slice_parameter.zig b/test/cases/compile_errors/reassign_to_slice_parameter.zig
index 4f3fbe2a24..ed28c9565b 100644
--- a/test/cases/compile_errors/reassign_to_slice_parameter.zig
+++ b/test/cases/compile_errors/reassign_to_slice_parameter.zig
@@ -6,7 +6,7 @@ export fn entry() void {
 }
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :2:5: error: cannot assign to constant
diff --git a/test/cases/compile_errors/return_from_naked_function.zig b/test/cases/compile_errors/return_from_naked_function.zig
index 083b4cb70b..8ac5521646 100644
--- a/test/cases/compile_errors/return_from_naked_function.zig
+++ b/test/cases/compile_errors/return_from_naked_function.zig
@@ -7,7 +7,7 @@ comptime {
 }
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :2:5: error: cannot return from naked function
diff --git a/test/cases/compile_errors/shlExact_shifts_out_1_bits.zig b/test/cases/compile_errors/shlExact_shifts_out_1_bits.zig
index b2ab45a8e9..b50cd5b6a1 100644
--- a/test/cases/compile_errors/shlExact_shifts_out_1_bits.zig
+++ b/test/cases/compile_errors/shlExact_shifts_out_1_bits.zig
@@ -4,7 +4,7 @@ comptime {
 }
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :2:15: error: operation caused overflow
diff --git a/test/cases/compile_errors/shrExact_shifts_out_1_bits.zig b/test/cases/compile_errors/shrExact_shifts_out_1_bits.zig
index dd23c4bcb3..ac514a467b 100644
--- a/test/cases/compile_errors/shrExact_shifts_out_1_bits.zig
+++ b/test/cases/compile_errors/shrExact_shifts_out_1_bits.zig
@@ -4,7 +4,7 @@ comptime {
 }
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :2:15: error: exact shift shifted out 1 bits
diff --git a/test/cases/compile_errors/std.fmt_error_for_unused_arguments.zig b/test/cases/compile_errors/std.fmt_error_for_unused_arguments.zig
index 6661fe54eb..af7aeb86de 100644
--- a/test/cases/compile_errors/std.fmt_error_for_unused_arguments.zig
+++ b/test/cases/compile_errors/std.fmt_error_for_unused_arguments.zig
@@ -3,7 +3,7 @@ export fn entry() void {
 }
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :?:?: error: 10 unused arguments in '{d} {d} {d} {d} {d}'
diff --git a/test/cases/compile_errors/store_vector_pointer_with_unknown_runtime_index.zig b/test/cases/compile_errors/store_vector_pointer_with_unknown_runtime_index.zig
index 0a00ebcf14..b904248b50 100644
--- a/test/cases/compile_errors/store_vector_pointer_with_unknown_runtime_index.zig
+++ b/test/cases/compile_errors/store_vector_pointer_with_unknown_runtime_index.zig
@@ -11,7 +11,7 @@ fn storev(ptr: anytype, val: i31) void {
 }
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :10:8: error: unable to determine vector element index of type '*align(16:0:4:?) i31'
diff --git a/test/cases/compile_errors/suspend_inside_suspend_block.zig b/test/cases/compile_errors/suspend_inside_suspend_block.zig
index 29a7968e0b..5963f1c0ec 100644
--- a/test/cases/compile_errors/suspend_inside_suspend_block.zig
+++ b/test/cases/compile_errors/suspend_inside_suspend_block.zig
@@ -8,7 +8,7 @@ fn foo() void {
 }
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :6:9: error: cannot suspend inside suspend block
diff --git a/test/cases/compile_errors/switch_expression-unreachable_else_prong_enum.zig b/test/cases/compile_errors/switch_expression-unreachable_else_prong_enum.zig
index e7bb8d392f..c361b9cc62 100644
--- a/test/cases/compile_errors/switch_expression-unreachable_else_prong_enum.zig
+++ b/test/cases/compile_errors/switch_expression-unreachable_else_prong_enum.zig
@@ -20,7 +20,7 @@ export fn entry() usize {
 }
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :14:14: error: unreachable else prong; all cases already handled
diff --git a/test/cases/compile_errors/unable_to_evaluate_expr_inside_cimport.zig b/test/cases/compile_errors/unable_to_evaluate_expr_inside_cimport.zig
index ab98dcd673..5f803f1402 100644
--- a/test/cases/compile_errors/unable_to_evaluate_expr_inside_cimport.zig
+++ b/test/cases/compile_errors/unable_to_evaluate_expr_inside_cimport.zig
@@ -7,7 +7,7 @@ export fn entry() void {
 }
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :2:11: error: unable to evaluate comptime expression
diff --git a/test/cases/compile_errors/unreachable_else_prong_err_set.zig b/test/cases/compile_errors/unreachable_else_prong_err_set.zig
index 29ff47a5bf..5635e848f0 100644
--- a/test/cases/compile_errors/unreachable_else_prong_err_set.zig
+++ b/test/cases/compile_errors/unreachable_else_prong_err_set.zig
@@ -21,7 +21,7 @@ pub export fn simple() void {
 }
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :7:14: error: unreachable else prong; all cases already handled
diff --git a/test/cases/compile_errors/unreachable_in_naked_func.zig b/test/cases/compile_errors/unreachable_in_naked_func.zig
index 9a3658013a..d732c59395 100644
--- a/test/cases/compile_errors/unreachable_in_naked_func.zig
+++ b/test/cases/compile_errors/unreachable_in_naked_func.zig
@@ -19,7 +19,7 @@ comptime {
 }
 
 // error
-// backend=llvm
+// backend=stage2
 // target=native
 //
 // :2:5: error: runtime safety check not allowed in naked function
diff --git a/test/cases/error_in_nested_declaration.zig b/test/cases/error_in_nested_declaration.zig
index 2ef8bf13ec..0d7ed92c18 100644
--- a/test/cases/error_in_nested_declaration.zig
+++ b/test/cases/error_in_nested_declaration.zig
@@ -23,7 +23,7 @@ pub export fn entry2() void {
 }
 
 // error
-// backend=llvm
+// backend=stage2,llvm
 // target=native
 //
 // :6:20: error: cannot @bitCast to '[]i32'
diff --git a/test/cases/f32_passed_to_variadic_fn.zig b/test/cases/f32_passed_to_variadic_fn.zig
index 3b3e034ab2..81a583fb6b 100644
--- a/test/cases/f32_passed_to_variadic_fn.zig
+++ b/test/cases/f32_passed_to_variadic_fn.zig
@@ -7,7 +7,7 @@ pub fn main() void {
 }
 
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=x86_64-linux-gnu
 // link_libc=true
 //
diff --git a/test/cases/fn_typeinfo_passed_to_comptime_fn.zig b/test/cases/fn_typeinfo_passed_to_comptime_fn.zig
index 3518a8384c..829a6f69a0 100644
--- a/test/cases/fn_typeinfo_passed_to_comptime_fn.zig
+++ b/test/cases/fn_typeinfo_passed_to_comptime_fn.zig
@@ -14,5 +14,5 @@ fn foo(comptime info: std.builtin.Type) !void {
 
 // run
 // is_test=true
-// backend=llvm
+// backend=stage2,llvm
 //
diff --git a/test/cases/large_add_function.zig b/test/cases/large_add_function.zig
index 61201d1545..adbb0efdc0 100644
--- a/test/cases/large_add_function.zig
+++ b/test/cases/large_add_function.zig
@@ -36,5 +36,5 @@ fn assert(ok: bool) void {
 // TODO: enable this for native backend
 
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=aarch64-linux,aarch64-macos
diff --git a/test/cases/llvm/address_space_pointer_access_chaining_pointer_to_optional_array.zig b/test/cases/llvm/address_space_pointer_access_chaining_pointer_to_optional_array.zig
index 9ee3fa4de4..51eab82f13 100644
--- a/test/cases/llvm/address_space_pointer_access_chaining_pointer_to_optional_array.zig
+++ b/test/cases/llvm/address_space_pointer_access_chaining_pointer_to_optional_array.zig
@@ -7,6 +7,6 @@ pub fn main() void {
 
 // compile
 // output_mode=Exe
-// backend=llvm
+// backend=stage2,llvm
 // target=x86_64-linux,x86_64-macos
 //
diff --git a/test/cases/llvm/address_spaces_pointer_access_chaining_complex.zig b/test/cases/llvm/address_spaces_pointer_access_chaining_complex.zig
index 5be74a0ea5..dfa1484375 100644
--- a/test/cases/llvm/address_spaces_pointer_access_chaining_complex.zig
+++ b/test/cases/llvm/address_spaces_pointer_access_chaining_complex.zig
@@ -8,6 +8,6 @@ pub fn main() void {
 
 // compile
 // output_mode=Exe
-// backend=llvm
+// backend=stage2,llvm
 // target=x86_64-linux,x86_64-macos
 //
diff --git a/test/cases/llvm/for_loop.zig b/test/cases/llvm/for_loop.zig
index e48f2edd71..e7e701aafa 100644
--- a/test/cases/llvm/for_loop.zig
+++ b/test/cases/llvm/for_loop.zig
@@ -11,6 +11,6 @@ pub fn main() void {
 }
 
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=x86_64-linux,x86_64-macos
 //
diff --git a/test/cases/llvm/hello_world.zig b/test/cases/llvm/hello_world.zig
index 8bc1c60614..383b543f9d 100644
--- a/test/cases/llvm/hello_world.zig
+++ b/test/cases/llvm/hello_world.zig
@@ -5,7 +5,7 @@ pub fn main() void {
 }
 
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=x86_64-linux,x86_64-macos
 // link_libc=true
 //
diff --git a/test/cases/llvm/large_slices.zig b/test/cases/llvm/large_slices.zig
index 8e9431df8c..d221893059 100644
--- a/test/cases/llvm/large_slices.zig
+++ b/test/cases/llvm/large_slices.zig
@@ -4,6 +4,6 @@ pub fn main() void {
 }
 
 // compile
-// backend=llvm
+// backend=stage2,llvm
 // target=x86_64-linux,x86_64-macos
 //
diff --git a/test/cases/llvm/optionals.zig b/test/cases/llvm/optionals.zig
index 110a9c511d..215e7fda00 100644
--- a/test/cases/llvm/optionals.zig
+++ b/test/cases/llvm/optionals.zig
@@ -44,6 +44,6 @@ pub fn main() void {
 }
 
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=x86_64-linux,x86_64-macos
 //
diff --git a/test/cases/maximum_sized_integer_literal.zig b/test/cases/maximum_sized_integer_literal.zig
index 2157d9ea28..7ea593e972 100644
--- a/test/cases/maximum_sized_integer_literal.zig
+++ b/test/cases/maximum_sized_integer_literal.zig
@@ -18,5 +18,5 @@ pub fn main() !void {
 }
 
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/returning_undefined_sentinel_terminated_const_u8_slice.zig b/test/cases/returning_undefined_sentinel_terminated_const_u8_slice.zig
index 2bf585c5bd..9e31fe51c9 100644
--- a/test/cases/returning_undefined_sentinel_terminated_const_u8_slice.zig
+++ b/test/cases/returning_undefined_sentinel_terminated_const_u8_slice.zig
@@ -7,5 +7,5 @@ pub fn main() void {
 }
 
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/@alignCast misaligned.zig b/test/cases/safety/@alignCast misaligned.zig
index ade27c2747..e523a9d120 100644
--- a/test/cases/safety/@alignCast misaligned.zig
+++ b/test/cases/safety/@alignCast misaligned.zig
@@ -21,5 +21,5 @@ fn foo(bytes: []u8) u32 {
     return int_slice[0];
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/@enumFromInt - no matching tag value.zig b/test/cases/safety/@enumFromInt - no matching tag value.zig
index 5051869cc0..0021a4d397 100644
--- a/test/cases/safety/@enumFromInt - no matching tag value.zig
+++ b/test/cases/safety/@enumFromInt - no matching tag value.zig
@@ -22,5 +22,5 @@ fn bar(a: u2) Foo {
 fn baz(_: Foo) void {}
 
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/@enumFromInt truncated bits - exhaustive.zig b/test/cases/safety/@enumFromInt truncated bits - exhaustive.zig
index e7a6b7e38b..92065c4892 100644
--- a/test/cases/safety/@enumFromInt truncated bits - exhaustive.zig
+++ b/test/cases/safety/@enumFromInt truncated bits - exhaustive.zig
@@ -19,5 +19,5 @@ pub fn main() u8 {
 }
 
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/@enumFromInt truncated bits - nonexhaustive.zig b/test/cases/safety/@enumFromInt truncated bits - nonexhaustive.zig
index 240b937cf5..25959c9ffd 100644
--- a/test/cases/safety/@enumFromInt truncated bits - nonexhaustive.zig
+++ b/test/cases/safety/@enumFromInt truncated bits - nonexhaustive.zig
@@ -19,5 +19,5 @@ pub fn main() u8 {
 }
 
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/@errorCast error not present in destination.zig b/test/cases/safety/@errorCast error not present in destination.zig
index ff86e1f783..74e81f2a60 100644
--- a/test/cases/safety/@errorCast error not present in destination.zig
+++ b/test/cases/safety/@errorCast error not present in destination.zig
@@ -17,5 +17,5 @@ fn foo(set1: Set1) Set2 {
     return @errorCast(set1);
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/@errorCast error union casted to disjoint set.zig b/test/cases/safety/@errorCast error union casted to disjoint set.zig
index c9da2fc636..2696a037c7 100644
--- a/test/cases/safety/@errorCast error union casted to disjoint set.zig
+++ b/test/cases/safety/@errorCast error union casted to disjoint set.zig
@@ -16,5 +16,5 @@ fn foo() anyerror!i32 {
     return error.Bar;
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/@intCast to u0.zig b/test/cases/safety/@intCast to u0.zig
index a33da87f0f..1637a859ad 100644
--- a/test/cases/safety/@intCast to u0.zig
+++ b/test/cases/safety/@intCast to u0.zig
@@ -18,5 +18,5 @@ fn bar(one: u1, not_zero: i32) void {
     _ = x;
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/@intFromFloat cannot fit - negative out of range.zig b/test/cases/safety/@intFromFloat cannot fit - negative out of range.zig
index a5a8d831b3..80edbdfd3c 100644
--- a/test/cases/safety/@intFromFloat cannot fit - negative out of range.zig
+++ b/test/cases/safety/@intFromFloat cannot fit - negative out of range.zig
@@ -16,5 +16,5 @@ fn bar(a: f32) i8 {
 }
 fn baz(_: i8) void {}
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/@intFromFloat cannot fit - negative to unsigned.zig b/test/cases/safety/@intFromFloat cannot fit - negative to unsigned.zig
index 1bf1a66765..ee0c040273 100644
--- a/test/cases/safety/@intFromFloat cannot fit - negative to unsigned.zig
+++ b/test/cases/safety/@intFromFloat cannot fit - negative to unsigned.zig
@@ -16,5 +16,5 @@ fn bar(a: f32) u8 {
 }
 fn baz(_: u8) void {}
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/@intFromFloat cannot fit - positive out of range.zig b/test/cases/safety/@intFromFloat cannot fit - positive out of range.zig
index 15a9fa7ad1..c526a70047 100644
--- a/test/cases/safety/@intFromFloat cannot fit - positive out of range.zig
+++ b/test/cases/safety/@intFromFloat cannot fit - positive out of range.zig
@@ -16,5 +16,5 @@ fn bar(a: f32) u8 {
 }
 fn baz(_: u8) void {}
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/@ptrFromInt address zero to non-optional byte-aligned pointer.zig b/test/cases/safety/@ptrFromInt address zero to non-optional byte-aligned pointer.zig
index f8c448855e..4944a239e2 100644
--- a/test/cases/safety/@ptrFromInt address zero to non-optional byte-aligned pointer.zig
+++ b/test/cases/safety/@ptrFromInt address zero to non-optional byte-aligned pointer.zig
@@ -15,5 +15,5 @@ pub fn main() !void {
     return error.TestFailed;
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/@ptrFromInt address zero to non-optional pointer.zig b/test/cases/safety/@ptrFromInt address zero to non-optional pointer.zig
index c9ae253df7..a217de3073 100644
--- a/test/cases/safety/@ptrFromInt address zero to non-optional pointer.zig
+++ b/test/cases/safety/@ptrFromInt address zero to non-optional pointer.zig
@@ -15,5 +15,5 @@ pub fn main() !void {
     return error.TestFailed;
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/@ptrFromInt with misaligned address.zig b/test/cases/safety/@ptrFromInt with misaligned address.zig
index 3952ab9baa..b95c1b320f 100644
--- a/test/cases/safety/@ptrFromInt with misaligned address.zig
+++ b/test/cases/safety/@ptrFromInt with misaligned address.zig
@@ -15,5 +15,5 @@ pub fn main() !void {
     return error.TestFailed;
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/@tagName on corrupted enum value.zig b/test/cases/safety/@tagName on corrupted enum value.zig
index e23cd1fcf6..df6a3f45e0 100644
--- a/test/cases/safety/@tagName on corrupted enum value.zig
+++ b/test/cases/safety/@tagName on corrupted enum value.zig
@@ -22,5 +22,5 @@ pub fn main() !void {
 }
 
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/@tagName on corrupted union value.zig b/test/cases/safety/@tagName on corrupted union value.zig
index 09d8276d23..7b856e57b9 100644
--- a/test/cases/safety/@tagName on corrupted union value.zig
+++ b/test/cases/safety/@tagName on corrupted union value.zig
@@ -23,5 +23,5 @@ pub fn main() !void {
 }
 
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/array slice sentinel mismatch vector.zig b/test/cases/safety/array slice sentinel mismatch vector.zig
index da20d98869..55ff4b3e39 100644
--- a/test/cases/safety/array slice sentinel mismatch vector.zig
+++ b/test/cases/safety/array slice sentinel mismatch vector.zig
@@ -15,5 +15,5 @@ pub fn main() !void {
     return error.TestFailed;
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/array slice sentinel mismatch.zig b/test/cases/safety/array slice sentinel mismatch.zig
index fc19618673..ab7a513b39 100644
--- a/test/cases/safety/array slice sentinel mismatch.zig
+++ b/test/cases/safety/array slice sentinel mismatch.zig
@@ -15,5 +15,5 @@ pub fn main() !void {
     return error.TestFailed;
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/bad union field access.zig b/test/cases/safety/bad union field access.zig
index c6706d4176..14ebb1f344 100644
--- a/test/cases/safety/bad union field access.zig
+++ b/test/cases/safety/bad union field access.zig
@@ -23,5 +23,5 @@ fn bar(f: *Foo) void {
     f.float = 12.34;
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/calling panic.zig b/test/cases/safety/calling panic.zig
index 832bc5f19a..7b8a478be3 100644
--- a/test/cases/safety/calling panic.zig
+++ b/test/cases/safety/calling panic.zig
@@ -12,5 +12,5 @@ pub fn main() !void {
     return error.TestFailed;
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/cast []u8 to bigger slice of wrong size.zig b/test/cases/safety/cast []u8 to bigger slice of wrong size.zig
index a72b2fcca2..b6b8e89bf9 100644
--- a/test/cases/safety/cast []u8 to bigger slice of wrong size.zig
+++ b/test/cases/safety/cast []u8 to bigger slice of wrong size.zig
@@ -17,5 +17,5 @@ fn widenSlice(slice: []align(1) const u8) []align(1) const i32 {
     return std.mem.bytesAsSlice(i32, slice);
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/cast integer to global error and no code matches.zig b/test/cases/safety/cast integer to global error and no code matches.zig
index 61daf07a2b..fa0474a88c 100644
--- a/test/cases/safety/cast integer to global error and no code matches.zig
+++ b/test/cases/safety/cast integer to global error and no code matches.zig
@@ -15,5 +15,5 @@ fn bar(x: u16) anyerror {
     return @errorFromInt(x);
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/empty slice with sentinel out of bounds.zig b/test/cases/safety/empty slice with sentinel out of bounds.zig
index 69201fde30..51846f894f 100644
--- a/test/cases/safety/empty slice with sentinel out of bounds.zig
+++ b/test/cases/safety/empty slice with sentinel out of bounds.zig
@@ -17,5 +17,5 @@ pub fn main() !void {
 }
 
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/exact division failure.zig b/test/cases/safety/exact division failure.zig
index cdf1b1fb8d..be86853c77 100644
--- a/test/cases/safety/exact division failure.zig
+++ b/test/cases/safety/exact division failure.zig
@@ -17,5 +17,5 @@ fn divExact(a: i32, b: i32) i32 {
     return @divExact(a, b);
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/for_len_mismatch.zig b/test/cases/safety/for_len_mismatch.zig
index ee21b947d7..8841f11aa7 100644
--- a/test/cases/safety/for_len_mismatch.zig
+++ b/test/cases/safety/for_len_mismatch.zig
@@ -21,5 +21,5 @@ pub fn main() !void {
     return error.TestFailed;
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/for_len_mismatch_three.zig b/test/cases/safety/for_len_mismatch_three.zig
index 70f854def5..4efe18d3cd 100644
--- a/test/cases/safety/for_len_mismatch_three.zig
+++ b/test/cases/safety/for_len_mismatch_three.zig
@@ -20,5 +20,5 @@ pub fn main() !void {
     return error.TestFailed;
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/ignored expression integer overflow.zig b/test/cases/safety/ignored expression integer overflow.zig
index f8e3f0bf0a..1089010854 100644
--- a/test/cases/safety/ignored expression integer overflow.zig
+++ b/test/cases/safety/ignored expression integer overflow.zig
@@ -17,5 +17,5 @@ pub fn main() !void {
 }
 
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/integer addition overflow.zig b/test/cases/safety/integer addition overflow.zig
index 4f7c5b2cb3..499e8b1015 100644
--- a/test/cases/safety/integer addition overflow.zig
+++ b/test/cases/safety/integer addition overflow.zig
@@ -19,5 +19,5 @@ fn add(a: u16, b: u16) u16 {
 }
 
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/integer division by zero.zig b/test/cases/safety/integer division by zero.zig
index 0d1b79d26d..e8eba5c4f0 100644
--- a/test/cases/safety/integer division by zero.zig
+++ b/test/cases/safety/integer division by zero.zig
@@ -16,5 +16,5 @@ fn div0(a: i32, b: i32) i32 {
     return @divTrunc(a, b);
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/integer multiplication overflow.zig b/test/cases/safety/integer multiplication overflow.zig
index 641801277d..f7f4148a15 100644
--- a/test/cases/safety/integer multiplication overflow.zig
+++ b/test/cases/safety/integer multiplication overflow.zig
@@ -17,5 +17,5 @@ fn mul(a: u16, b: u16) u16 {
     return a * b;
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/integer negation overflow.zig b/test/cases/safety/integer negation overflow.zig
index 3d4c134c4a..cfdfed0429 100644
--- a/test/cases/safety/integer negation overflow.zig
+++ b/test/cases/safety/integer negation overflow.zig
@@ -17,5 +17,5 @@ fn neg(a: i16) i16 {
     return -a;
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/integer subtraction overflow.zig b/test/cases/safety/integer subtraction overflow.zig
index 84a16f55b8..14e9131c3b 100644
--- a/test/cases/safety/integer subtraction overflow.zig
+++ b/test/cases/safety/integer subtraction overflow.zig
@@ -17,5 +17,5 @@ fn sub(a: u16, b: u16) u16 {
     return a - b;
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/memcpy_alias.zig b/test/cases/safety/memcpy_alias.zig
index d87a7bf6aa..7371457467 100644
--- a/test/cases/safety/memcpy_alias.zig
+++ b/test/cases/safety/memcpy_alias.zig
@@ -14,5 +14,5 @@ pub fn main() !void {
     @memcpy(buffer[0..len], buffer[4 .. 4 + len]);
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/memcpy_len_mismatch.zig b/test/cases/safety/memcpy_len_mismatch.zig
index 6ca36abccb..fb6aa2e59b 100644
--- a/test/cases/safety/memcpy_len_mismatch.zig
+++ b/test/cases/safety/memcpy_len_mismatch.zig
@@ -14,5 +14,5 @@ pub fn main() !void {
     @memcpy(buffer[0..len], buffer[len .. len + 4]);
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/memset_array_undefined_bytes.zig b/test/cases/safety/memset_array_undefined_bytes.zig
index e0ce2dac04..20a65d65d6 100644
--- a/test/cases/safety/memset_array_undefined_bytes.zig
+++ b/test/cases/safety/memset_array_undefined_bytes.zig
@@ -14,5 +14,5 @@ pub fn main() !void {
     x += buffer[2];
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/memset_array_undefined_large.zig b/test/cases/safety/memset_array_undefined_large.zig
index dbc1cf4420..a52bfecbf0 100644
--- a/test/cases/safety/memset_array_undefined_large.zig
+++ b/test/cases/safety/memset_array_undefined_large.zig
@@ -14,5 +14,5 @@ pub fn main() !void {
     x += buffer[2];
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/memset_slice_undefined_bytes.zig b/test/cases/safety/memset_slice_undefined_bytes.zig
index 4214b5db4b..fb67999306 100644
--- a/test/cases/safety/memset_slice_undefined_bytes.zig
+++ b/test/cases/safety/memset_slice_undefined_bytes.zig
@@ -16,5 +16,5 @@ pub fn main() !void {
     x += buffer[2];
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/memset_slice_undefined_large.zig b/test/cases/safety/memset_slice_undefined_large.zig
index d1f4f651d3..166557240c 100644
--- a/test/cases/safety/memset_slice_undefined_large.zig
+++ b/test/cases/safety/memset_slice_undefined_large.zig
@@ -16,5 +16,5 @@ pub fn main() !void {
     x += buffer[2];
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/modrem by zero.zig b/test/cases/safety/modrem by zero.zig
index f201062c0e..35b7e37e3a 100644
--- a/test/cases/safety/modrem by zero.zig
+++ b/test/cases/safety/modrem by zero.zig
@@ -16,5 +16,5 @@ fn div0(a: u32, b: u32) u32 {
     return a / b;
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/modulus by zero.zig b/test/cases/safety/modulus by zero.zig
index 6714458979..cdeab00dbc 100644
--- a/test/cases/safety/modulus by zero.zig
+++ b/test/cases/safety/modulus by zero.zig
@@ -16,5 +16,5 @@ fn mod0(a: i32, b: i32) i32 {
     return @mod(a, b);
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/noreturn returned.zig b/test/cases/safety/noreturn returned.zig
index c3c30af37e..c92fb08e62 100644
--- a/test/cases/safety/noreturn returned.zig
+++ b/test/cases/safety/noreturn returned.zig
@@ -19,5 +19,5 @@ pub fn main() void {
     bar();
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/optional unwrap operator on C pointer.zig b/test/cases/safety/optional unwrap operator on C pointer.zig
index bd3313265a..98135cfae4 100644
--- a/test/cases/safety/optional unwrap operator on C pointer.zig
+++ b/test/cases/safety/optional unwrap operator on C pointer.zig
@@ -15,5 +15,5 @@ pub fn main() !void {
     return error.TestFailed;
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/optional unwrap operator on null pointer.zig b/test/cases/safety/optional unwrap operator on null pointer.zig
index 9dda4d0a9e..6ac54e6bd0 100644
--- a/test/cases/safety/optional unwrap operator on null pointer.zig
+++ b/test/cases/safety/optional unwrap operator on null pointer.zig
@@ -15,5 +15,5 @@ pub fn main() !void {
     return error.TestFailed;
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/out of bounds array slice by length.zig b/test/cases/safety/out of bounds array slice by length.zig
index 62768abebf..325749a5eb 100644
--- a/test/cases/safety/out of bounds array slice by length.zig
+++ b/test/cases/safety/out of bounds array slice by length.zig
@@ -16,5 +16,5 @@ fn foo(a: u32) u32 {
     return a;
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/out of bounds slice access.zig b/test/cases/safety/out of bounds slice access.zig
index b4c87948a5..f4f34a203f 100644
--- a/test/cases/safety/out of bounds slice access.zig
+++ b/test/cases/safety/out of bounds slice access.zig
@@ -17,5 +17,5 @@ fn bar(a: []const i32) i32 {
 }
 fn baz(_: i32) void {}
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/pointer casting null to non-optional pointer.zig b/test/cases/safety/pointer casting null to non-optional pointer.zig
index fdf8dc17ce..33da071e73 100644
--- a/test/cases/safety/pointer casting null to non-optional pointer.zig
+++ b/test/cases/safety/pointer casting null to non-optional pointer.zig
@@ -17,5 +17,5 @@ pub fn main() !void {
 }
 
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/pointer casting to null function pointer.zig b/test/cases/safety/pointer casting to null function pointer.zig
index 8f399b66dc..a57e71cb8f 100644
--- a/test/cases/safety/pointer casting to null function pointer.zig
+++ b/test/cases/safety/pointer casting to null function pointer.zig
@@ -19,5 +19,5 @@ pub fn main() !void {
 }
 
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/pointer slice sentinel mismatch.zig b/test/cases/safety/pointer slice sentinel mismatch.zig
index 3972528edf..519b04b916 100644
--- a/test/cases/safety/pointer slice sentinel mismatch.zig
+++ b/test/cases/safety/pointer slice sentinel mismatch.zig
@@ -17,5 +17,5 @@ pub fn main() !void {
 }
 
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/remainder division by zero.zig b/test/cases/safety/remainder division by zero.zig
index 3dc97f6e16..2d938a2fd6 100644
--- a/test/cases/safety/remainder division by zero.zig
+++ b/test/cases/safety/remainder division by zero.zig
@@ -16,5 +16,5 @@ fn rem0(a: i32, b: i32) i32 {
     return @rem(a, b);
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/shift left by huge amount.zig b/test/cases/safety/shift left by huge amount.zig
index a038c0ee44..374b03d123 100644
--- a/test/cases/safety/shift left by huge amount.zig
+++ b/test/cases/safety/shift left by huge amount.zig
@@ -18,5 +18,5 @@ pub fn main() !void {
 }
 
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/shift right by huge amount.zig b/test/cases/safety/shift right by huge amount.zig
index ced81d948d..173e6fcd7e 100644
--- a/test/cases/safety/shift right by huge amount.zig
+++ b/test/cases/safety/shift right by huge amount.zig
@@ -18,5 +18,5 @@ pub fn main() !void {
 }
 
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/signed integer division overflow.zig b/test/cases/safety/signed integer division overflow.zig
index 9d1014ceec..0d67f72649 100644
--- a/test/cases/safety/signed integer division overflow.zig
+++ b/test/cases/safety/signed integer division overflow.zig
@@ -17,5 +17,5 @@ fn div(a: i16, b: i16) i16 {
     return @divTrunc(a, b);
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/signed integer not fitting in cast to unsigned integer - widening.zig b/test/cases/safety/signed integer not fitting in cast to unsigned integer - widening.zig
index 87c812eddc..3ee2f1fefa 100644
--- a/test/cases/safety/signed integer not fitting in cast to unsigned integer - widening.zig
+++ b/test/cases/safety/signed integer not fitting in cast to unsigned integer - widening.zig
@@ -15,5 +15,5 @@ pub fn main() !void {
     return error.TestFailed;
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/signed integer not fitting in cast to unsigned integer.zig b/test/cases/safety/signed integer not fitting in cast to unsigned integer.zig
index 5d8c3f88c8..44402c329e 100644
--- a/test/cases/safety/signed integer not fitting in cast to unsigned integer.zig
+++ b/test/cases/safety/signed integer not fitting in cast to unsigned integer.zig
@@ -16,5 +16,5 @@ fn unsigned_cast(x: i32) u32 {
     return @intCast(x);
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/signed shift left overflow.zig b/test/cases/safety/signed shift left overflow.zig
index f9a4db81ce..54a51e0ccd 100644
--- a/test/cases/safety/signed shift left overflow.zig
+++ b/test/cases/safety/signed shift left overflow.zig
@@ -17,5 +17,5 @@ fn shl(a: i16, b: u4) i16 {
     return @shlExact(a, b);
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/signed shift right overflow.zig b/test/cases/safety/signed shift right overflow.zig
index 7d71b9ffbd..1a0c5973c9 100644
--- a/test/cases/safety/signed shift right overflow.zig
+++ b/test/cases/safety/signed shift right overflow.zig
@@ -17,5 +17,5 @@ fn shr(a: i16, b: u4) i16 {
     return @shrExact(a, b);
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/signed-unsigned vector cast.zig b/test/cases/safety/signed-unsigned vector cast.zig
index 2e3b4d25d5..f4da258f28 100644
--- a/test/cases/safety/signed-unsigned vector cast.zig
+++ b/test/cases/safety/signed-unsigned vector cast.zig
@@ -17,5 +17,5 @@ pub fn main() !void {
 }
 
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/slice by length sentinel mismatch on lhs.zig b/test/cases/safety/slice by length sentinel mismatch on lhs.zig
index 70fa97f48a..c66a968d4b 100644
--- a/test/cases/safety/slice by length sentinel mismatch on lhs.zig
+++ b/test/cases/safety/slice by length sentinel mismatch on lhs.zig
@@ -14,5 +14,5 @@ pub fn main() !void {
     return error.TestFailed;
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/slice by length sentinel mismatch on rhs.zig b/test/cases/safety/slice by length sentinel mismatch on rhs.zig
index d3cff47728..a4a2189a9c 100644
--- a/test/cases/safety/slice by length sentinel mismatch on rhs.zig
+++ b/test/cases/safety/slice by length sentinel mismatch on rhs.zig
@@ -14,5 +14,5 @@ pub fn main() !void {
     return error.TestFailed;
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/slice sentinel mismatch - floats.zig b/test/cases/safety/slice sentinel mismatch - floats.zig
index 19b9b86c3b..45577acb00 100644
--- a/test/cases/safety/slice sentinel mismatch - floats.zig
+++ b/test/cases/safety/slice sentinel mismatch - floats.zig
@@ -16,5 +16,5 @@ pub fn main() !void {
 }
 
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/slice sentinel mismatch - optional pointers.zig b/test/cases/safety/slice sentinel mismatch - optional pointers.zig
index a3b4a98575..38ab78b2c1 100644
--- a/test/cases/safety/slice sentinel mismatch - optional pointers.zig
+++ b/test/cases/safety/slice sentinel mismatch - optional pointers.zig
@@ -16,5 +16,5 @@ pub fn main() !void {
 }
 
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/slice slice sentinel mismatch.zig b/test/cases/safety/slice slice sentinel mismatch.zig
index 635706b2c5..51d4c16596 100644
--- a/test/cases/safety/slice slice sentinel mismatch.zig
+++ b/test/cases/safety/slice slice sentinel mismatch.zig
@@ -15,5 +15,5 @@ pub fn main() !void {
     return error.TestFailed;
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/slice start index greater than end index.zig b/test/cases/safety/slice start index greater than end index.zig
index 83d489ab56..a6dde3ac63 100644
--- a/test/cases/safety/slice start index greater than end index.zig
+++ b/test/cases/safety/slice start index greater than end index.zig
@@ -20,5 +20,5 @@ pub fn main() !void {
 }
 
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/slice with sentinel out of bounds - runtime len.zig b/test/cases/safety/slice with sentinel out of bounds - runtime len.zig
index abb3cc42f0..7039f541e3 100644
--- a/test/cases/safety/slice with sentinel out of bounds - runtime len.zig
+++ b/test/cases/safety/slice with sentinel out of bounds - runtime len.zig
@@ -19,5 +19,5 @@ pub fn main() !void {
 }
 
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/slice with sentinel out of bounds.zig b/test/cases/safety/slice with sentinel out of bounds.zig
index 1683dc9d3f..8439e8c737 100644
--- a/test/cases/safety/slice with sentinel out of bounds.zig
+++ b/test/cases/safety/slice with sentinel out of bounds.zig
@@ -17,5 +17,5 @@ pub fn main() !void {
 }
 
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/slicing null C pointer - runtime len.zig b/test/cases/safety/slicing null C pointer - runtime len.zig
index dd73a50112..763553b04a 100644
--- a/test/cases/safety/slicing null C pointer - runtime len.zig
+++ b/test/cases/safety/slicing null C pointer - runtime len.zig
@@ -17,5 +17,5 @@ pub fn main() !void {
     return error.TestFailed;
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/slicing null C pointer.zig b/test/cases/safety/slicing null C pointer.zig
index 862f2dcfdb..a928fd585f 100644
--- a/test/cases/safety/slicing null C pointer.zig
+++ b/test/cases/safety/slicing null C pointer.zig
@@ -16,5 +16,5 @@ pub fn main() !void {
     return error.TestFailed;
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/switch else on corrupt enum value - one prong.zig b/test/cases/safety/switch else on corrupt enum value - one prong.zig
index c11227c3be..73f6ed9dc8 100644
--- a/test/cases/safety/switch else on corrupt enum value - one prong.zig
+++ b/test/cases/safety/switch else on corrupt enum value - one prong.zig
@@ -20,5 +20,5 @@ pub fn main() !void {
     }
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/switch else on corrupt enum value - union.zig b/test/cases/safety/switch else on corrupt enum value - union.zig
index a63c78597e..77dacd86c6 100644
--- a/test/cases/safety/switch else on corrupt enum value - union.zig
+++ b/test/cases/safety/switch else on corrupt enum value - union.zig
@@ -25,5 +25,5 @@ pub fn main() !void {
     }
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/switch else on corrupt enum value.zig b/test/cases/safety/switch else on corrupt enum value.zig
index 7e050838c0..228e3c70ec 100644
--- a/test/cases/safety/switch else on corrupt enum value.zig
+++ b/test/cases/safety/switch else on corrupt enum value.zig
@@ -19,5 +19,5 @@ pub fn main() !void {
     }
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/switch on corrupted enum value.zig b/test/cases/safety/switch on corrupted enum value.zig
index f890761911..4d46d2e7a7 100644
--- a/test/cases/safety/switch on corrupted enum value.zig
+++ b/test/cases/safety/switch on corrupted enum value.zig
@@ -23,5 +23,5 @@ pub fn main() !void {
 }
 
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/switch on corrupted union value.zig b/test/cases/safety/switch on corrupted union value.zig
index fc93c9d6e7..0f622dcbd8 100644
--- a/test/cases/safety/switch on corrupted union value.zig
+++ b/test/cases/safety/switch on corrupted union value.zig
@@ -23,5 +23,5 @@ pub fn main() !void {
 }
 
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/unreachable.zig b/test/cases/safety/unreachable.zig
index 492f7958b1..fc1e886540 100644
--- a/test/cases/safety/unreachable.zig
+++ b/test/cases/safety/unreachable.zig
@@ -11,5 +11,5 @@ pub fn main() !void {
     unreachable;
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/unsigned integer not fitting in cast to signed integer - same bit count.zig b/test/cases/safety/unsigned integer not fitting in cast to signed integer - same bit count.zig
index 9bd4c42007..6a3f0c08a6 100644
--- a/test/cases/safety/unsigned integer not fitting in cast to signed integer - same bit count.zig
+++ b/test/cases/safety/unsigned integer not fitting in cast to signed integer - same bit count.zig
@@ -15,5 +15,5 @@ pub fn main() !void {
     return error.TestFailed;
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/unsigned shift left overflow.zig b/test/cases/safety/unsigned shift left overflow.zig
index d38d8f6ecf..e2f58f0f3b 100644
--- a/test/cases/safety/unsigned shift left overflow.zig
+++ b/test/cases/safety/unsigned shift left overflow.zig
@@ -17,5 +17,5 @@ fn shl(a: u16, b: u4) u16 {
     return @shlExact(a, b);
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/unsigned shift right overflow.zig b/test/cases/safety/unsigned shift right overflow.zig
index 121797a17d..6ded52098d 100644
--- a/test/cases/safety/unsigned shift right overflow.zig
+++ b/test/cases/safety/unsigned shift right overflow.zig
@@ -17,5 +17,5 @@ fn shr(a: u16, b: u4) u16 {
     return @shrExact(a, b);
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/unwrap error switch.zig b/test/cases/safety/unwrap error switch.zig
index 0723a9fb24..b3194bd2e0 100644
--- a/test/cases/safety/unwrap error switch.zig
+++ b/test/cases/safety/unwrap error switch.zig
@@ -17,5 +17,5 @@ fn bar() !void {
     return error.Whatever;
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/unwrap error.zig b/test/cases/safety/unwrap error.zig
index e2d7ea725b..9fe7d437bc 100644
--- a/test/cases/safety/unwrap error.zig
+++ b/test/cases/safety/unwrap error.zig
@@ -15,5 +15,5 @@ fn bar() !void {
     return error.Whatever;
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/value does not fit in shortening cast - u0.zig b/test/cases/safety/value does not fit in shortening cast - u0.zig
index ec111a2cae..3644437ea1 100644
--- a/test/cases/safety/value does not fit in shortening cast - u0.zig
+++ b/test/cases/safety/value does not fit in shortening cast - u0.zig
@@ -17,5 +17,5 @@ fn shorten_cast(x: u8) u0 {
     return @intCast(x);
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/value does not fit in shortening cast.zig b/test/cases/safety/value does not fit in shortening cast.zig
index a5ea41659e..b48c4698fa 100644
--- a/test/cases/safety/value does not fit in shortening cast.zig
+++ b/test/cases/safety/value does not fit in shortening cast.zig
@@ -17,5 +17,5 @@ fn shorten_cast(x: i32) i8 {
     return @intCast(x);
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/safety/zero casted to error.zig b/test/cases/safety/zero casted to error.zig
index 78340db316..1ffa995260 100644
--- a/test/cases/safety/zero casted to error.zig
+++ b/test/cases/safety/zero casted to error.zig
@@ -15,5 +15,5 @@ fn bar(x: u16) anyerror {
     return @errorFromInt(x);
 }
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/taking_pointer_of_global_tagged_union.zig b/test/cases/taking_pointer_of_global_tagged_union.zig
index ee9df21783..accb22667d 100644
--- a/test/cases/taking_pointer_of_global_tagged_union.zig
+++ b/test/cases/taking_pointer_of_global_tagged_union.zig
@@ -22,5 +22,5 @@ pub fn main() !void {
 }
 
 // run
-// backend=llvm
+// backend=stage2,llvm
 // target=native
diff --git a/test/cases/union_unresolved_layout.zig b/test/cases/union_unresolved_layout.zig
index f76c929e8a..4c458a90f3 100644
--- a/test/cases/union_unresolved_layout.zig
+++ b/test/cases/union_unresolved_layout.zig
@@ -11,5 +11,5 @@ pub fn main() !void {
 }
 
 // run
-// backend=llvm
+// backend=stage2,llvm
 //