wasmtime / issue #5498 Cranelift: Illegal instruction on ... · git-wasmtime

Stream: git-wasmtime

Topic: wasmtime / issue #5498 Cranelift: Illegal instruction on ...

Wasmtime GitHub notifications bot (Dec 29 2022 at 23:52):

afonso360 opened issue #5498:

:wave: Hey,

I can't seem to pin down which instruction exactly is causing the issue here, removing any of the ones in the test below make it pass.

`.clif` Test Case

test interpret
test run
target riscv64

function %a(i16, i8) -> i16 {
block0(v0: i16, v1: i8):
    v2 = ishl v0, v1
    v3 = iconst.i16 0
    v4 = iconst.i16 1
    v5 = icmp eq v2, v3  ; v3 = 0
    v6 = select v5, v4, v2  ; v4 = 1
    v7 = udiv v2, v6
    return v7
}

; run: %a(514, -1) == 0

Steps to Reproduce

clif-util test ./the-above.clif

Expected Results

The test to pass.

Actual Results

Illegal instruction

Versions and Environment

Cranelift version or commit: main
Operating system: Linux
Architecture: riscv64

Extra Info

Disassembly:

Disassembly of 64 bytes:
   0:   13 f8 f5 00             andi    a6, a1, 0xf
   4:   3b 1e 05 01             sllw    t3, a0, a6
   8:   93 07 00 00             mv      a5, zero
   c:   93 08 10 00             addi    a7, zero, 1
  10:   63 06 fe 00             beq     t3, a5, 0xc
  14:   93 6e 0e 00             ori     t4, t3, 0
  18:   6f 00 80 00             j       8
  1c:   93 ee 08 00             ori     t4, a7, 0
  20:   93 97 0e 03             slli    a5, t4, 0x30
  24:   93 d7 07 03             srli    a5, a5, 0x30
  28:   63 14 f0 00             bne     zero, a5, 8
  2c:   00 00 00 00             .byte   0x00, 0x00, 0x00, 0x00
  30:   13 1e 0e 03             slli    t3, t3, 0x30
  34:   13 5e 0e 03             srli    t3, t3, 0x30
  38:   3b 55 fe 02             divuw   a0, t3, a5
  3c:   67 80 00 00             ret

Wasmtime GitHub notifications bot (Dec 29 2022 at 23:52):

afonso360 labeled issue #5498:

:wave: Hey,

I can't seem to pin down which instruction exactly is causing the issue here, removing any of the ones in the test below make it pass.

`.clif` Test Case

test interpret
test run
target riscv64

function %a(i16, i8) -> i16 {
block0(v0: i16, v1: i8):
    v2 = ishl v0, v1
    v3 = iconst.i16 0
    v4 = iconst.i16 1
    v5 = icmp eq v2, v3  ; v3 = 0
    v6 = select v5, v4, v2  ; v4 = 1
    v7 = udiv v2, v6
    return v7
}

; run: %a(514, -1) == 0

Steps to Reproduce

clif-util test ./the-above.clif

Expected Results

The test to pass.

Actual Results

Illegal instruction

Versions and Environment

Cranelift version or commit: main
Operating system: Linux
Architecture: riscv64

Extra Info

Disassembly:

Disassembly of 64 bytes:
   0:   13 f8 f5 00             andi    a6, a1, 0xf
   4:   3b 1e 05 01             sllw    t3, a0, a6
   8:   93 07 00 00             mv      a5, zero
   c:   93 08 10 00             addi    a7, zero, 1
  10:   63 06 fe 00             beq     t3, a5, 0xc
  14:   93 6e 0e 00             ori     t4, t3, 0
  18:   6f 00 80 00             j       8
  1c:   93 ee 08 00             ori     t4, a7, 0
  20:   93 97 0e 03             slli    a5, t4, 0x30
  24:   93 d7 07 03             srli    a5, a5, 0x30
  28:   63 14 f0 00             bne     zero, a5, 8
  2c:   00 00 00 00             .byte   0x00, 0x00, 0x00, 0x00
  30:   13 1e 0e 03             slli    t3, t3, 0x30
  34:   13 5e 0e 03             srli    t3, t3, 0x30
  38:   3b 55 fe 02             divuw   a0, t3, a5
  3c:   67 80 00 00             ret

Wasmtime GitHub notifications bot (Dec 29 2022 at 23:52):

afonso360 labeled issue #5498:

:wave: Hey,

I can't seem to pin down which instruction exactly is causing the issue here, removing any of the ones in the test below make it pass.

`.clif` Test Case

test interpret
test run
target riscv64

function %a(i16, i8) -> i16 {
block0(v0: i16, v1: i8):
    v2 = ishl v0, v1
    v3 = iconst.i16 0
    v4 = iconst.i16 1
    v5 = icmp eq v2, v3  ; v3 = 0
    v6 = select v5, v4, v2  ; v4 = 1
    v7 = udiv v2, v6
    return v7
}

; run: %a(514, -1) == 0

Steps to Reproduce

clif-util test ./the-above.clif

Expected Results

The test to pass.

Actual Results

Illegal instruction

Versions and Environment

Cranelift version or commit: main
Operating system: Linux
Architecture: riscv64

Extra Info

Disassembly:

Disassembly of 64 bytes:
   0:   13 f8 f5 00             andi    a6, a1, 0xf
   4:   3b 1e 05 01             sllw    t3, a0, a6
   8:   93 07 00 00             mv      a5, zero
   c:   93 08 10 00             addi    a7, zero, 1
  10:   63 06 fe 00             beq     t3, a5, 0xc
  14:   93 6e 0e 00             ori     t4, t3, 0
  18:   6f 00 80 00             j       8
  1c:   93 ee 08 00             ori     t4, a7, 0
  20:   93 97 0e 03             slli    a5, t4, 0x30
  24:   93 d7 07 03             srli    a5, a5, 0x30
  28:   63 14 f0 00             bne     zero, a5, 8
  2c:   00 00 00 00             .byte   0x00, 0x00, 0x00, 0x00
  30:   13 1e 0e 03             slli    t3, t3, 0x30
  34:   13 5e 0e 03             srli    t3, t3, 0x30
  38:   3b 55 fe 02             divuw   a0, t3, a5
  3c:   67 80 00 00             ret

Wasmtime GitHub notifications bot (Jan 03 2023 at 19:59):

elliottt closed issue #5498:

:wave: Hey,

I can't seem to pin down which instruction exactly is causing the issue here, removing any of the ones in the test below make it pass.

`.clif` Test Case

test interpret
test run
target riscv64

function %a(i16, i8) -> i16 {
block0(v0: i16, v1: i8):
    v2 = ishl v0, v1
    v3 = iconst.i16 0
    v4 = iconst.i16 1
    v5 = icmp eq v2, v3  ; v3 = 0
    v6 = select v5, v4, v2  ; v4 = 1
    v7 = udiv v2, v6
    return v7
}

; run: %a(514, -1) == 0

Steps to Reproduce

clif-util test ./the-above.clif

Expected Results

The test to pass.

Actual Results

Illegal instruction

Versions and Environment

Cranelift version or commit: main
Operating system: Linux
Architecture: riscv64

Extra Info

Disassembly:

Disassembly of 64 bytes:
   0:   13 f8 f5 00             andi    a6, a1, 0xf
   4:   3b 1e 05 01             sllw    t3, a0, a6
   8:   93 07 00 00             mv      a5, zero
   c:   93 08 10 00             addi    a7, zero, 1
  10:   63 06 fe 00             beq     t3, a5, 0xc
  14:   93 6e 0e 00             ori     t4, t3, 0
  18:   6f 00 80 00             j       8
  1c:   93 ee 08 00             ori     t4, a7, 0
  20:   93 97 0e 03             slli    a5, t4, 0x30
  24:   93 d7 07 03             srli    a5, a5, 0x30
  28:   63 14 f0 00             bne     zero, a5, 8
  2c:   00 00 00 00             .byte   0x00, 0x00, 0x00, 0x00
  30:   13 1e 0e 03             slli    t3, t3, 0x30
  34:   13 5e 0e 03             srli    t3, t3, 0x30
  38:   3b 55 fe 02             divuw   a0, t3, a5
  3c:   67 80 00 00             ret

Last updated: Oct 23 2024 at 20:03 UTC

Stream: git-wasmtime

Topic: wasmtime / issue #5498 Cranelift: Illegal instruction on ...

Wasmtime GitHub notifications bot (Dec 29 2022 at 23:52):

.clif Test Case

Steps to Reproduce

Expected Results

Actual Results

Versions and Environment

Extra Info

Wasmtime GitHub notifications bot (Dec 29 2022 at 23:52):

.clif Test Case

Steps to Reproduce

Expected Results

Actual Results

Versions and Environment

Extra Info

Wasmtime GitHub notifications bot (Dec 29 2022 at 23:52):

.clif Test Case

Steps to Reproduce

Expected Results

Actual Results

Versions and Environment

Extra Info

Wasmtime GitHub notifications bot (Jan 03 2023 at 19:59):

.clif Test Case

Steps to Reproduce

Expected Results

Actual Results

Versions and Environment

Extra Info

`.clif` Test Case

`.clif` Test Case

`.clif` Test Case

`.clif` Test Case