videetparekh opened a new issue #6330:
URL: https://github.com/apache/incubator-tvm/issues/6330
### Issue
While trying to load a wasm file into TVM web runtime, I get:
```
Error: Cannot find global function runtime.SystemLib
Error: Cannot find global function runtime.SystemLib
/path/to/wasm/tvmjs_runtime.wasi.js:3
var Module=typeof Module!=="undefined"?Module:{};var __wasmLib={};function
__wasmLibInstantiateWasm(imports,successCallback){__wasmLib.imports=imports;__wasmLib.successCallback=successCallback}function
__wasmLibStart(wasmInstance){__wasmLib.successCallback(wasmInstance)}__wasmLib.start=__wasmLibStart;var
Module={"instantiateWasm":__wasmLibInstantiateWasm,"wasmLibraryProvider":__wasmLib};var
moduleOverrides={};var key;for(key in
Module){if(Module.hasOwnProperty(key)){moduleOverrides[key]=Module[key]}}var
arguments_=[];var thisProgram="./this.program";var
quit_=function(status,toThrow){throw toThrow};var ENVIRONMENT_IS_WEB=false;var
ENVIRONMENT_IS_WORKER=false;var ENVIRONMENT_IS_NODE=false;var
ENVIRONMENT_HAS_NODE=false;var
ENVIRONMENT_IS_SHELL=false;ENVIRONMENT_IS_WEB=typeof
window==="object";ENVIRONMENT_IS_WORKER=typeof
importScripts==="function";ENVIRONMENT_HAS_NODE=typeof process==="object
abort(Error: Cannot find global function runtime.SystemLib). Build with -s
ASSERTIONS=1 for more info.
(Use `node --trace-uncaught ...` to show where the exception was thrown)
```
### Steps to Reproduce
Build Steps:
`make` in `tvm/web` gives me the following but proceeds to generate the
`dist` folder:
```sh
warning: undefined symbol: TVMWasmPackedCFunc
warning: undefined symbol: TVMWasmPackedCFuncFinalizer
python3 emcc/decorate_as_wasi.py dist/wasm/tvmjs_runtime.js
dist/wasm/tvmjs_runtime.wasi.js
```
Compiling a model to WASM:
```py
graph, lib, params = tvm.relay.build(relay_function, target='llvm
-mtriple=wasm32-unknown-emscripten -system-lib', params=relay_function_params)
lib.save('path/to/modelLibrary.bc')
emcc.create_tvmjs_wasm('path/to/modelLibrary.js', 'path/to/modelLibrary.bc',
options=["-s", "USE_GLFW=3"])
```
The model compiles as expected and generates a wasm file. The runtime fails
while loading the systemLibrary as follows.
```js
const lrejs = require("../runtime_dist");
const wasmPath = lrejs.wasmPath();
const EmccWASI = require(path.join(wasmPath, "tvmjs_runtime.wasi.js"));
var WasiObj = new EmccWASI()
const wasmSource = fs.readFileSync('path/to/modelLibrary.wasm')
const lre = await lrejs.instantiate(wasmSource, WasiObj)
var ctx = lre.cpu(0)
const sysLib = lre.systemLib() // Fails
const executor = lre.createGraphRuntime(graphJson, sysLib, ctx)
executor.loadParams(paramsBinary)
```
### Env
EMSDK: 1.39.0
LLVM: release/10.x _(LLVM 12 breaks `make` in `tvm/web`)_
TVM Commit ID: 5046ff2
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