Stream: git-wasmtime

Topic: wasmtime / issue #3201 Cranelift: Saturating arithmetic w...

Wasmtime GitHub notifications bot (Aug 18 2021 at 10:29):

dheaton-arm opened issue #3201:

Opening an issue based on discussion in https://github.com/bytecodealliance/wasmtime/pull/3188#discussion_r690657131.

uadd_sat and usub_sat are not implemented in the x86_64 Cranelift backend (but are implemented for AArch64) for i32x4 or i64x2 SIMD vectors.

CLIF bugpoint (uadd_sat):

Crash message: Unsupported type for packed uadd_sat instruction: i32x4

function %uaddsat_i32x4() -> i32x4 system_v {
    const0 = 0x00000000000000000000000000000000

block0:
    v0 = vconst.i32x4 const0
    v1 = vconst.i32x4 const0
    v2 = uadd_sat v0, v1
    return v2
}

Crash message: Unsupported type for packed uadd_sat instruction: i64x2

function %uaddsat_i64x2() -> i64x2 system_v {
    const0 = 0x00000000000000000000000000000000

block0:
    v0 = vconst.i64x2 const0
    v1 = vconst.i64x2 const0
    v2 = uadd_sat v0, v1
    return v2
}

CLIF bugpoint (usub_sat):

Crash message: Unsupported type for packed usub_sat instruction: i32x4

function %usubsat_i32x4() -> i32x4 system_v {
    const0 = 0x00000000000000000000000000000000

block0:
    v0 = vconst.i32x4 const0
    v1 = vconst.i32x4 const0
    v2 = usub_sat v0, v1
    return v2
}

Crash message: Unsupported type for packed usub_sat instruction: i64x2

function %usubsat_i64x2() -> i64x2 system_v {
    const0 = 0x00000000000000000000000000000000

block0:
    v0 = vconst.i64x2 const0
    v1 = vconst.i64x2 const0
    v2 = usub_sat v0, v1
    return v2
}

Wasmtime GitHub notifications bot (Oct 01 2021 at 21:07):

akirilov-arm labeled issue #3201:

Opening an issue based on discussion in https://github.com/bytecodealliance/wasmtime/pull/3188#discussion_r690657131.

uadd_sat and usub_sat are not implemented in the x86_64 Cranelift backend (but are implemented for AArch64) for i32x4 or i64x2 SIMD vectors.

CLIF bugpoint (uadd_sat):

Crash message: Unsupported type for packed uadd_sat instruction: i32x4

function %uaddsat_i32x4() -> i32x4 system_v {
    const0 = 0x00000000000000000000000000000000

block0:
    v0 = vconst.i32x4 const0
    v1 = vconst.i32x4 const0
    v2 = uadd_sat v0, v1
    return v2
}

Crash message: Unsupported type for packed uadd_sat instruction: i64x2

function %uaddsat_i64x2() -> i64x2 system_v {
    const0 = 0x00000000000000000000000000000000

block0:
    v0 = vconst.i64x2 const0
    v1 = vconst.i64x2 const0
    v2 = uadd_sat v0, v1
    return v2
}

CLIF bugpoint (usub_sat):

Crash message: Unsupported type for packed usub_sat instruction: i32x4

function %usubsat_i32x4() -> i32x4 system_v {
    const0 = 0x00000000000000000000000000000000

block0:
    v0 = vconst.i32x4 const0
    v1 = vconst.i32x4 const0
    v2 = usub_sat v0, v1
    return v2
}

Crash message: Unsupported type for packed usub_sat instruction: i64x2

function %usubsat_i64x2() -> i64x2 system_v {
    const0 = 0x00000000000000000000000000000000

block0:
    v0 = vconst.i64x2 const0
    v1 = vconst.i64x2 const0
    v2 = usub_sat v0, v1
    return v2
}

Wasmtime GitHub notifications bot (Oct 01 2021 at 21:07):

akirilov-arm labeled issue #3201:

Opening an issue based on discussion in https://github.com/bytecodealliance/wasmtime/pull/3188#discussion_r690657131.

uadd_sat and usub_sat are not implemented in the x86_64 Cranelift backend (but are implemented for AArch64) for i32x4 or i64x2 SIMD vectors.

CLIF bugpoint (uadd_sat):

Crash message: Unsupported type for packed uadd_sat instruction: i32x4

function %uaddsat_i32x4() -> i32x4 system_v {
    const0 = 0x00000000000000000000000000000000

block0:
    v0 = vconst.i32x4 const0
    v1 = vconst.i32x4 const0
    v2 = uadd_sat v0, v1
    return v2
}

Crash message: Unsupported type for packed uadd_sat instruction: i64x2

function %uaddsat_i64x2() -> i64x2 system_v {
    const0 = 0x00000000000000000000000000000000

block0:
    v0 = vconst.i64x2 const0
    v1 = vconst.i64x2 const0
    v2 = uadd_sat v0, v1
    return v2
}

CLIF bugpoint (usub_sat):

Crash message: Unsupported type for packed usub_sat instruction: i32x4

function %usubsat_i32x4() -> i32x4 system_v {
    const0 = 0x00000000000000000000000000000000

block0:
    v0 = vconst.i32x4 const0
    v1 = vconst.i32x4 const0
    v2 = usub_sat v0, v1
    return v2
}

Crash message: Unsupported type for packed usub_sat instruction: i64x2

function %usubsat_i64x2() -> i64x2 system_v {
    const0 = 0x00000000000000000000000000000000

block0:
    v0 = vconst.i64x2 const0
    v1 = vconst.i64x2 const0
    v2 = usub_sat v0, v1
    return v2
}

Last updated: Dec 23 2024 at 12:05 UTC