wasmtime / issue #14926 `interrupt_poll` isn't handled by... · git-wasmtime

This input:

test inline
target x86_64

function %callee(i64, i64) -> i64 tail {
block0(v0: i64, v1: i64):
    v2 = interrupt_poll v0, v1, user3
    return v2
}

function %caller(i64, i64) -> i64 system_v {
    fn0 = %callee(i64, i64) -> i64 tail
block0(v0: i64, v1: i64):
    v2 = call fn0(v0, v1)
    return v2
}

fails with:

$ cargo run -p cranelift-tools test foo.clif
    Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.06s
     Running `target/debug/clif-util test foo.clif`

thread 'worker #3' (2504781) panicked at cranelift/codegen/src/inline.rs:239:21:
should have matched all call instructions, but found: inst0: v2 = interrupt_poll.i64 v0, v1, user3
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
[2026-10-21T20:48:10Z ERROR cranelift_filetests::concurrent] FAIL: panicked in worker #3: should have matched all call instructions, but found: inst0: v2 = interrupt_poll.i64 v0, v1, user3
FAIL foo.clif: panicked in worker #3: should have matched all call instructions, but found: inst0: v2 = interrupt_poll.i64 v0, v1, user3
1 tests
Error: 1 failure

and this input:

test compile
target x86_64
target aarch64

function %f(i64, i64) -> i64 tail {
    ss0 = explicit_slot 8
block0(v0: i64, v1: i64):
    v5 = stack_addr.i64 ss0
    store v0, v5
    v2 = interrupt_poll v0, v1, user3, stack_map=[i64 @ ss0+0]
    v3 = load.i64 v5
    v4 = iadd v2, v3
    return v4
}

fails with:

$ cargo run -p cranelift-tools test foo.clif
    Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.06s
     Running `target/debug/clif-util test foo.clif`

thread 'worker #3' (2506268) panicked at cranelift/codegen/src/machinst/lower.rs:966:17:
assertion `left == right` failed
  left: 0
 right: 1
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
[2026-10-21T20:49:41Z ERROR cranelift_filetests::concurrent] FAIL: panicked in worker #3: assertion `left == right` failed
      left: 0
     right: 1
FAIL foo.clif: panicked in worker #3: assertion `left == right` failed
  left: 0
 right: 1
1 tests
Error: 1 failure

cc @erikrose

Stream: git-wasmtime

Topic: wasmtime / issue #14926 `interrupt_poll` isn't handled by...

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