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aarch64 selector: operand-class confusion — 'local.set: expected GP operand, got FP' / 'fcompare: expected FP operand, got GP' across the float MVP-core files

bugSomething isn't workingSomething isn't working

Status: Open.

#1231 In pulseengine/synth;

· avrabe opened on Sep 9, 2026

VCR-RA-003 refuses its own emitted stream on spec modules: JoinValueNotAvailable { reg: R4 } on br/br_if/br_table/labels (+ an R5 instance) — a caught would-be miscompile

bugSomething isn't workingSomething isn't working

Status: Open.

#1230 In pulseengine/synth;

· avrabe opened on Sep 9, 2026

arm direct selector: 'stack underflow: malformed WASM or compiler bug' on VALID spec modules — 74 functions / 6 MVP-core files, never a file's sole blocker

bugSomething isn't workingSomething isn't working

Status: Open.

#1229 In pulseengine/synth;

· avrabe opened on Sep 9, 2026

multi-module .wast: a function in a LATER module gets the representative module's param-width table — an i64 param is homed as i32 and its pair overlaps the next param (#1168 re-threads arg counts, not width masks)

bugSomething isn't workingSomething isn't working

Status: Open.

#1226 In pulseengine/synth;

· avrabe opened on Sep 9, 2026

The spec-suite census compiles .wast files on a path no oracle executes — it never sets R9, drops data segments and global initializers at exit 0

bugSomething isn't workingSomething isn't working

Status: Open.

#1225 In pulseengine/synth;

· avrabe opened on Sep 9, 2026

optimized path: (x - x) + x folds to the constant 0 — the x-x fold plus the +0 identity drop the surviving use of x

bugSomething isn't workingSomething isn't working

Status: Open.

#1223 In pulseengine/synth;

· avrabe opened on Sep 8, 2026

arm direct selector: local.set/local.tee of a register-homed i64 PARAM writes only the lo half (leaf functions), and the #989 snapshot can land on val's hi

bugSomething isn't workingSomething isn't working

Status: Open.

#1222 In pulseengine/synth;

· avrabe opened on Sep 8, 2026

aarch64: i32.rotl/i64.rotl negate the count IN PLACE — a param homed in that register reads back as -count (the #776 fix moved the clobber from n to k)

bugSomething isn't workingSomething isn't working

Status: Open.

#1221 In pulseengine/synth;

· avrabe opened on Sep 8, 2026

The spec-suite gap was declared closed by a COMPILE census — the behavioural half stayed open and nothing sampled it until #197

bugSomething isn't workingSomething isn't working

Status: Open.

#1217 In pulseengine/synth;

· avrabe opened on Sep 8, 2026

br_table/br_if with a value-carrying branch or if in an OPERAND position is wrong on both selectors (spec br/br_if nested-br_table-value-index, func break-br_table-*, if as-br_if-last/as-br_table-last), exit 0

Status: Open.

#1215 In pulseengine/synth;

· avrabe opened on Sep 8, 2026

i64 read-before-write local is not zero-initialised on either selector (spec func.wast init-local-i64 returns garbage; the i32 case is handled by #457)

Status: Open.

#1214 In pulseengine/synth;

· avrabe opened on Sep 8, 2026

optimized path: i64 select feeding i32.wrap_i64 returns the wrong value (spec select.wast as-convert-operand), exit 0 — direct selector correct

Status: Open.

#1213 In pulseengine/synth;

· avrabe opened on Sep 8, 2026