Files
sx/examples/expected/0146-types-comptime-count-matrix.stdout
agra a821323c3c fix(ir): converge the comptime-int count surface (0083)
Three adjacent cells of the shared count surface still diverged from the
rest; all now route through the same leaf+fold+narrow+diagnose path.

1. Aliased integer constraint bypassed the value-param range gate — only
   builtin constraint names matched intTypeRange, so Box(5_000_000_000)
   with `$K: Count` (Count :: u32) compiled and bound a truncated value.
   resolveValueParamArg (shared by both the struct AND type-fn binder) now
   resolves the constraint to its underlying builtin via
   canonicalIntConstraintName (Count -> u32, Small -> s8) before
   range-checking, so an aliased integer constraint behaves exactly like
   the builtin it names.

2. A named const with an expression RHS (M :: 2; N :: M + 1) did not fold
   as a count — moduleConstInt read only a literal RHS node. It now folds
   every const's RHS through the shared evalConstIntExpr, cycle-guarded
   (mutual / self cycles fold to null, not a stack overflow), and pass-0
   pre-registers expression-RHS consts. N :: M + 1 == 3 at every consumer:
   dim (direct + alias), Vector lane, value-param (struct + type-fn),
   inline for.

3. Stateful resolveArrayLen still fabricated length 0 after a failed fold;
   it now returns null -> the .unresolved sentinel (no fabrication). The
   binding's lowering never reaches sizeOf (alloca defers it; hasErrors
   aborts first) and a field access on an already-diagnosed .unresolved
   value is poison-suppressed (emitFieldError), so a failed-fold dim emits
   ONE clean diagnostic with no panic.

Regressions: examples/0146 (full positive matrix — every consumer x leaf
form), 1135 (aliased u32 + s8 overflow), 1136 (direct non-const dim halts
cleanly). The cascade cleanup also tightened 1502/1503 to one diagnostic.
Unit test added for moduleConstInt expression-folding + cycle detection.
2026-06-04 14:09:46 +03:00

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dim.direct.expr: len=3 a0=7 a2=9
dim.direct.float: len=4 f3=40
dim.alias.expr: len=3 aa2=99
dim.alias.float: len=4
dim.alias.typed: len=5
lane.expr3: 1.000000 2.000000 3.000000
lane.float4: 4.000000
vp.struct.expr: len=3 v=30
vp.struct.alias.u32: len=3 v=31
vp.struct.alias.s8: len=4 v=32
vp.typefn.expr: len=3 v=33
for.expr: 3
for.float: 6