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Unexpected behavior in fast-JIT mode and interpreter mode #3391

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erxiaozhou opened this issue May 5, 2024 · 1 comment
Closed

Unexpected behavior in fast-JIT mode and interpreter mode #3391

erxiaozhou opened this issue May 5, 2024 · 1 comment
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bug Something isn't working fast-jit fixed

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@erxiaozhou
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Subject of the issue

The WAMR on fast interpreter mode / classic interpreter mode / fast JIT mode has a wrong execution result on the test case.

Test case

tt4.zip

Your environment

  • Host OS: Ubuntu 20.04
  • Commit Id: c0e33f0

Steps to reproduce

  1. build WAMR on fast interpreter mode / classic interpreter mode / fast JIT mode
  2. execute the command
iwasm --heap-size=0 -f "to_test" <test_case>

or

iwasm --heap-size=0  --fast-jit -f "to_test"

Expected behavior

No exception

Actual behavior

An exception " HashMap find elem failed: map or key is NULL."
@TianlongLiang TianlongLiang mentioned this issue May 7, 2024
Merged
wenyongh pushed a commit that referenced this issue May 9, 2024
@TianlongLiang
ref-types: Correct default value for function local variables (#3397)
ea13d47 
In classic interpreter, fast interpreter and fast-jit running modes, set the local
variables' default value to NULL_REF (0xFFFFFFFF) rather than 0 if they are type
of externref or funcref.

The issue was reported in #3390 and #3391.
@wenyongh wenyongh added bug Something isn't working fixed fast-jit labels May 14, 2024
@wenyongh
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Close the issue since it was fixed.

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@wenyongh @erxiaozhou