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[test] Add test for STACK_OVERFLOW_CHECK=2 with BINARYEN_PASS_DEBUG #28126

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[test] Add test for STACK_OVERFLOW_CHECK=2 with BINARYEN_PASS_DEBUG #28126

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7 changes: 7 additions & 0 deletions test/test_other.py
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Original file line number Diff line number Diff line change
Expand Up @@ -14663,6 +14663,13 @@ def test_stack_overflow(self):
cflags=['-O1', '--profiling-funcs'],
assert_returncode=NON_ZERO)

# BINARYEN_PASS_DEBUG validates after each binaryen pass, which catches
# invalid IR from the stack-check pass that STACK_OVERFLOW_CHECK=2 runs.
@with_env_modify({'BINARYEN_PASS_DEBUG': '1'})
def test_stack_overflow_check_pass_debug(self):
self.set_setting('STACK_OVERFLOW_CHECK', 2)
self.do_runf('hello_world.c', 'Hello, world!\n')

@sbc100 sbc100 Nov 1, 2026

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I think the binaryen fix looks good, but I'm not sure we need to add tests like this (basically a test of binaryen) here in the emscripten repo? This seems like something that should be tested in binaryen. Having said that I guess it could make sense for emscripten to be tested with BINARYEN_PASS_DEBUG in some cases?

@kripken WDYT?


@also_with_wasm64
@parameterized({
'': ([],),
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