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Fuzzer: Fix Merge fuzzing when input must be ignored #7866

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Merged
merged 1 commit into from
Aug 27, 2025
Merged

Fuzzer: Fix Merge fuzzing when input must be ignored #7866

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6 changes: 6 additions & 0 deletions scripts/fuzz_opt.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1485,11 +1485,17 @@ def handle(self, wasm):

# verify that merging in the second module did not alter the output.
output = run_bynterp(wasm, ['--fuzz-exec-before', '-all'])
if output == IGNORE:
return
output = fix_output(output)
second_output = run_bynterp(second_wasm, ['--fuzz-exec-before', '-all'])
second_output = fix_output(second_output)
if second_output == IGNORE:
return
merged_output = run_bynterp(merged, ['--fuzz-exec-before', '-all'])
merged_output = fix_output(merged_output)
if merged_output == IGNORE:
return

# If the second module traps in instantiation, then the merged module
# must do so as well, regardless of what the first module does. (In
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