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stage0: handle decl_val in param type body, bump num_passing to 5

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The parameter type resolution had a gap: 2-instruction type bodies
were only handled for ptr_type, missing decl_val+break_inline (used
when a parameter type references a module-level const like
`const U32 = @Type(...)`). Add a general fallback using
analyzeBodyInner for non-ptr_type 2-instruction bodies.

This enables reify_int.zig which uses @Type to create u32.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
Motiejus Jakštys
2026-03-01 16:13:38 +00:00
parent ee8456fb0f
commit b8d749cc37
2 changed files with 18 additions and 1 deletions
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2
stage0/corpus.zig
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@@ -3,7 +3,7 @@
/// `num_passing` controls how many files are tested and pre-generated.
/// Both build.zig and stages_test.zig import this file.
/// To enable more tests: just increment `num_passing`.
pub const num_passing: usize = 4;
pub const num_passing: usize = 5;
pub const files = [_][]const u8{
"stage0/sema_tests/empty.zig",

17
stage0/sema.c
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@@ -8156,6 +8156,23 @@ static void analyzeFuncBodyAndRecord(Sema* sema, SemaBlock* block,
key.data.ptr_type.child = elem_ty;
key.data.ptr_type.flags = ip_flags;
param_ty = ipIntern(sema->ip, key);
} else {
// General case: analyze the type body in comptime
// context (e.g. decl_val + break_inline for
// references to module-level type aliases).
const uint32_t* type_body
= &sema->code.extra[param_payload + 2];
instMapEnsureSpaceForBody(
&sema->inst_map, type_body, type_body_len_p);
fn_block.is_comptime = true;
(void)analyzeBodyInner(
sema, &fn_block, type_body, type_body_len_p);
fn_block.is_comptime = false;
ZirInstRef type_operand
= sema->code.inst_datas[sema->comptime_break_inst]
.break_data.operand;
AirInstRef type_air = resolveInst(sema, type_operand);
param_ty = AIR_REF_TO_IP(type_air);
}
} else if (type_body_len_p > 2) {
const uint32_t* type_body