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Remove sign-extending instructions via wasm-opt #2

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merged 1 commit into from
Apr 14, 2024
Merged

Remove sign-extending instructions via wasm-opt #2

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3 changes: 2 additions & 1 deletion pysrc/__init__.py
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Original file line number Diff line number Diff line change
Expand Up @@ -66,7 +66,7 @@ def build_contract(package_name, build_mode, target_dir, stack_size):
sys.exit(-1)

if shutil.which('wasm-opt'):
cmd = f'wasm-opt {target_dir}/wasm32-wasi/release/{package_name}.wasm -O3 --strip-debug -o {target_dir}/{package_name}.wasm'
cmd = f'wasm-opt {target_dir}/wasm32-wasi/release/{package_name}.wasm --signext-lowering -O3 --strip-debug -o {target_dir}/{package_name}.wasm'
cmd = shlex.split(cmd)
ret_code = subprocess.call(cmd, stdout=sys.stdout, stderr=sys.stderr)
if not ret_code == 0:
Expand All @@ -76,6 +76,7 @@ def build_contract(package_name, build_mode, target_dir, stack_size):
print_warning('''
wasm-opt not found! Make sure the binary is in your PATH environment.
We use this tool to optimize the size of your contract's Wasm binary.
It is also used to remove some instructions which are not supported in WASM 1.0
wasm-opt is part of the binaryen package. You can find detailed
installation instructions on https://github.com/WebAssembly/binaryen#tools.
There are ready-to-install packages for many platforms:
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