wasm-opcodecnt1

Usage

Overview

wasm-opcodecnt Read a file in the wasm binary format, and count opcode usage for instructions.

The options are as follows:

--help

Print a help message

--version

Print version information

-v, --verbose

Use multiple times for more info

--enable-exceptions

Enable Experimental exception handling

--disable-mutable-globals

Disable Import/export mutable globals

--disable-saturating-float-to-int

Disable Saturating float-to-int operators

--disable-sign-extension

Disable Sign-extension operators

--disable-simd

Disable SIMD support

--enable-threads

Enable Threading support

--enable-function-references

Enable Typed function references

--disable-multi-value

Disable Multi-value

--enable-tail-call

Enable Tail-call support

--disable-bulk-memory

Disable Bulk-memory operations

--disable-reference-types

Disable Reference types (externref)

--enable-annotations

Enable Custom annotation syntax

--enable-code-metadata

Enable Code metadata

--enable-gc

Enable Garbage collection

--enable-memory64

Enable 64-bit memory

--enable-multi-memory

Enable Multi-memory

--enable-extended-const

Enable Extended constant expressions

--enable-all

Enable all features

-o, --output=FILENAME

Output file for the opcode counts, by default use stdout

-c, --cutoff=N

Cutoff for reporting counts less than N

-s, --separator=SEPARATOR

Separator text between element and count when reporting counts

Examples

Parse binary file test.wasm and write pcode dist file test.dist

$ wasm-opcodecnt test.wasm -o test.dist