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Faster, smaller wasm runtime #51446

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Faster, smaller wasm runtime #51446

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fdaa5b2
Faster, smaller wasm runtime
benaadams Apr 17, 2021
9113bc9
Turn off closure complier advanced optimizations
benaadams Apr 18, 2021
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8 changes: 4 additions & 4 deletions src/mono/wasm/Makefile
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Original file line number Diff line number Diff line change
Expand Up @@ -72,7 +72,7 @@ ifeq ($(ENABLE_METADATA_UPDATE),true)
endif

EMCC_DEBUG_FLAGS =-g -Os -s ASSERTIONS=1 -DDEBUG=1
EMCC_RELEASE_FLAGS=-Oz --llvm-opts 2
EMCC_RELEASE_FLAGS=-O3 --llvm-opts 3

ifeq ($(NOSTRIP),)
STRIP_CMD=&& $(EMSDK_PATH)/upstream/bin/wasm-opt --strip-dwarf $(NATIVE_BIN_DIR)/dotnet.wasm -o $(NATIVE_BIN_DIR)/dotnet.wasm
Expand Down Expand Up @@ -108,13 +108,13 @@ $(BUILDS_OBJ_DIR)/pinvoke-table.h: $(PINVOKE_TABLE) | $(BUILDS_OBJ_DIR)
if cmp -s $(PINVOKE_TABLE) $$@ ; then : ; else cp $(PINVOKE_TABLE) $$@ ; fi

$(BUILDS_OBJ_DIR)/driver.o: runtime/driver.c | $(BUILDS_OBJ_DIR)
$(EMCC) $(EMCC_FLAGS) $(1) -Oz -DCORE_BINDINGS -I$(BUILDS_OBJ_DIR) -I$(MONO_INCLUDE_DIR) runtime/driver.c -c -o $$@
$(EMCC) $(EMCC_FLAGS) $(1) -O3 -DCORE_BINDINGS -I$(BUILDS_OBJ_DIR) -I$(MONO_INCLUDE_DIR) runtime/driver.c -c -o $$@

$(BUILDS_OBJ_DIR)/pinvoke.o: runtime/pinvoke.c runtime/pinvoke.h $(BUILDS_OBJ_DIR)/pinvoke-table.h | $(BUILDS_OBJ_DIR)
$(EMCC) $(EMCC_FLAGS) $(1) -Oz -DGEN_PINVOKE=1 -I$(BUILDS_OBJ_DIR) runtime/pinvoke.c -c -o $$@
$(EMCC) $(EMCC_FLAGS) $(1) -O3 -DGEN_PINVOKE=1 -I$(BUILDS_OBJ_DIR) runtime/pinvoke.c -c -o $$@

$(BUILDS_OBJ_DIR)/corebindings.o: runtime/corebindings.c | $(BUILDS_OBJ_DIR)
$(EMCC) $(EMCC_FLAGS) $(1) -Oz -I$(MONO_INCLUDE_DIR) runtime/corebindings.c -c -o $$@
$(EMCC) $(EMCC_FLAGS) $(1) -O3 -I$(MONO_INCLUDE_DIR) runtime/corebindings.c -c -o $$@

$(NATIVE_BIN_DIR)/src/emcc-flags.txt: | $(NATIVE_BIN_DIR)/src Makefile
echo "$(call escape_quote,$(EMCC_FLAGS)) $(1)" > $$@
Expand Down
9 changes: 4 additions & 5 deletions src/mono/wasm/runtime/binding_support.js
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Expand Up @@ -541,6 +541,7 @@ var BindingSupportLib = {
((typeof js_obj === "object" || typeof js_obj === "function") && typeof js_obj.then === "function")
}

var result;
switch (true) {
case js_obj === null:
case typeof js_obj === "undefined":
Expand Down Expand Up @@ -962,7 +963,7 @@ var BindingSupportLib = {

var conv = primitiveConverters.get (key);
if (!conv)
throw new Error ("Unknown parameter type " + type);
throw new Error ("Unknown parameter type " + key);

var localStep = Object.create (conv.steps[0]);
localStep.size = conv.size;
Expand Down Expand Up @@ -1300,7 +1301,7 @@ var BindingSupportLib = {
converter, buffer, resultRoot, exceptionRoot, argsRootBuffer, is_result_marshaled
) {
this._handle_exception_for_call (converter, buffer, resultRoot, exceptionRoot, argsRootBuffer);

var result;
if (is_result_marshaled)
result = this._unbox_mono_obj_root (resultRoot);
else
Expand Down Expand Up @@ -1443,7 +1444,7 @@ var BindingSupportLib = {
"return result;"
);

bodyJs = body.join ("\r\n");
var bodyJs = body.join ("\r\n");

if (friendly_name) {
var escapeRE = /[^A-Za-z0-9_]/g;
Expand Down Expand Up @@ -1699,7 +1700,6 @@ var BindingSupportLib = {

var js_args = BINDING.mono_wasm_parse_args(args);

var res;
try {
var m = obj [js_name];
if (typeof m === "undefined")
Expand Down Expand Up @@ -1731,7 +1731,6 @@ var BindingSupportLib = {
return BINDING.js_string_to_mono_string ("Invalid property name object '" + js_name + "'");
}

var res;
try {
var m = obj [js_name];
if (m === Object(m) && obj.__is_mono_proxied__)
Expand Down
2 changes: 1 addition & 1 deletion src/mono/wasm/runtime/corebindings.c
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Expand Up @@ -43,7 +43,7 @@ EM_JS(MonoObject*, compile_function, (int snippet_ptr, int len, int *is_exceptio
}
catch (e)
{
res = e.toString ();
var res = e.toString ();
setValue (is_exception, 1, "i32");
if (res === null || res === undefined)
res = "unknown exception";
Expand Down
2 changes: 1 addition & 1 deletion src/mono/wasm/runtime/dotnet_support.js
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Expand Up @@ -46,7 +46,7 @@ var DotNetSupportLib = {
var funcNameJsString = DOTNET.conv_string(functionName);
var argsJsonJsString = argsJson && DOTNET.conv_string (argsJson);

var dotNetExports = globaThis.DotNet;
var dotNetExports = globalThis.DotNet;
if (!dotNetExports) {
throw new Error('The Microsoft.JSInterop.js library is not loaded.');
}
Expand Down
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