refactor client code mods code
This commit is contained in:
Alon Zakai
Родитель
182795eb4d
Коммит
2a7aece52d
162
emcc
162
emcc
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@ -1681,166 +1681,8 @@ try:
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shutil.move(final, js_target)
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script_src = base_js_target
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# Optional code modifications
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if shared.Settings.PRECISE_F32 == 2:
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assert separate_asm, 'options that modify code on the client, like PRECISE_F32=2, require --separate-asm'
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# Potentially-modifiable code, load as text, modify, then execute. This lets you
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# patch the code on the client machine right before it is executed, perhaps based
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# on information about the client.
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mod = '''
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console.log('optimizing out Math.fround calls');
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code = code.replace("'use asm'", "'almost asm'").replace('"use asm"', '"almost asm"');
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'''
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if 'minifyNames' not in js_optimizer_queue_history:
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# simple dumb replace
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mod += "code = code.replace(/Math_fround\(/g, '(')\n";
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else:
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# minified, not quite so simple
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mod += '''
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try {
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console.log('optimizing out Math.fround calls');
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var m = /var ([^=]+)=global\.Math\.fround;/.exec(code);
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var minified = m[1];
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if (!minified) throw 'fail';
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do {
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var moar = false; // we need to re-do, as x(x( will not be fixed
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code = code.replace(new RegExp('[^a-zA-Z0-9\\\\$\\\\_]' + minified + '\\\\(', 'g'), function(s) { moar = true; return s[0] + '(' });
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} while (moar);
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} catch(e) { console.log('failed to optimize out Math.fround calls ' + e) }
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'''
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asm_mods.append('if (!Math.fround) { ' + mod + ' }')
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if shared.Settings.USE_PTHREADS == 2:
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assert separate_asm, 'options that modify code on the client, like PRECISE_F32=2, require --separate-asm'
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asm_mods.append('''if (typeof SharedInt8Array === "undefined") {
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try {
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console.log('This browser does not support SharedArrayBuffer/Atomics/pthreads! Patching out SharedArrayBuffer usage...');
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var t0 = performance.now();
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// "new global.SharedInt8Array(buffer)" -> "new global.Int8Array(buffer)" and likewise for other buffer types.
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code = code.replace(/new\s+global\.Shared(.*?)Array\(buffer\);/g, "new global.$1Array(buffer);");
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// In minified builds the interesting symbol names are mangled, so we have to first find what they are.
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var math_fround = /var\s+([^=]+?)\s*=\s*global\.Math\.fround;/.exec(code);
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var cp;
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var zero;
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if (math_fround && math_fround.length >= 2) {
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math_fround = math_fround[1] + '(';
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cp = ')';
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zero = math_fround + '0)';
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} else {
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math_fround = "+";
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cp = '';
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zero = '0.0';
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}
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var heap8 = /var\s+([^=]+?)\s*=\s*new global\.Int8Array\(buffer\);/.exec(code)[1];
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var heap16 = /var\s+([^=]+?)\s*=\s*new global\.Int16Array\(buffer\);/.exec(code)[1];
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var heap32 = /var\s+([^=]+?)\s*=\s*new global\.Int32Array\(buffer\);/.exec(code)[1];
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var heapf32 = /var\s+([^=]+?)\s*=\s*new global\.Float32Array\(buffer\);/.exec(code)[1];
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var heapf64 = /var\s+([^=]+?)\s*=\s*new global\.Float64Array\(buffer\);/.exec(code)[1];
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var atomics_load = /var\s+([^=]+?)\s*=\s*global\.Atomics\.load;/.exec(code)[1];
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var atomics_store = /var\s+([^=]+?)\s*=\s*global\.Atomics\.store;/.exec(code)[1];
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var atomics_compareExchange = /var\s+([^=]+?)\s*=\s*global\.Atomics\.compareExchange;/.exec(code)[1];
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var atomics_add = /var\s+([^=]+?)\s*=\s*global\.Atomics\.add;/.exec(code)[1];
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var atomics_sub = /var\s+([^=]+?)\s*=\s*global\.Atomics\.sub;/.exec(code)[1];
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var atomics_and = /var\s+([^=]+?)\s*=\s*global\.Atomics\.and;/.exec(code)[1];
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var atomics_or = /var\s+([^=]+?)\s*=\s*global\.Atomics\.or;/.exec(code)[1];
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var atomics_xor = /var\s+([^=]+?)\s*=\s*global\.Atomics\.xor;/.exec(code)[1];
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var atomics_fence = /var\s+([^=]+?)\s*=\s*global\.Atomics\.fence;/.exec(code)[1];
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// "Atomics_load(HEAP32, index)" -> "HEAP32[index]|0" and same for other heap types.
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code = code.replace(new RegExp('\\\\b' + atomics_load + '\\\\((' + heap8 + ')\w*,(.*?)\\\\\)', 'g'), "($1[$2]|0)");
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code = code.replace(new RegExp('\\\\b' + atomics_load + '\\\\((' + heap16 + ')\w*,(.*?)\\\\\)', 'g'), "($1[$2]|0)");
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code = code.replace(new RegExp('\\\\b' + atomics_load + '\\\\((' + heap32 + ')\w*,(.*?)\\\\\)', 'g'), "($1[$2]|0)");
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code = code.replace(new RegExp('\\\\b' + atomics_load + '\\\\((' + heapf32 + ')\w*,(.*?)\\\\\)', 'g'), math_fround + "$1[$2]"+cp);
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code = code.replace(new RegExp('\\\\b' + atomics_load + '\\\\((' + heapf64 + ')\w*,(.*?)\\\\\)', 'g'), "(+$1[$2])");
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// "Atomics_store(HEAP32, index, value)" -> "HEAP32[index] = value" and same for other heap types.
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code = code.replace(new RegExp('\\\\b' + atomics_store + '\\\\((.*?),(.*?),(.*?)\\\\\)', 'g'), "($1[$2] = $3)");
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// The Atomics built-ins take as first parameter the heap object, however when replacing those with
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// polyfill versions, it is not possible to pass a heap object as the first parameter. Therefore
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// route each call to Atomics to a polyfill function for each type, e.g. "Atomics_add(HEAP32, index, val)" -> "Atomics_add_32(index, val)"
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code = code.replace(new RegExp('\\\\b' + atomics_add + '\\\\('+heap8+',(.*?),(.*?)\\\\\)', 'g'), '((' + atomics_add + "_8($1,$2)|0)|0)");
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code = code.replace(new RegExp('\\\\b' + atomics_add + '\\\\('+heap16+',(.*?),(.*?)\\\\\)', 'g'), '((' + atomics_add + "_16($1,$2)|0)|0)");
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code = code.replace(new RegExp('\\\\b' + atomics_add + '\\\\('+heap32+',(.*?),(.*?)\\\\\)', 'g'), '((' + atomics_add + "_32($1,$2)|0)|0)");
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code = code.replace(new RegExp('\\\\b' + atomics_add + '\\\\('+heapf32+',(.*?),(.*?)\\\\\)', 'g'), '(' + atomics_add + "_f32($1,$2)|0)");
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code = code.replace(new RegExp('\\\\b' + atomics_add + '\\\\('+heapf64+',(.*?),(.*?)\\\\\)', 'g'), '(' + atomics_add + "_f64($1,$2)|0)");
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code = code.replace(new RegExp('\\\\b' + atomics_sub + '\\\\('+heap8+',(.*?),(.*?)\\\\\)', 'g'), '((' + atomics_sub + "_8($1,$2)|0)|0)");
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code = code.replace(new RegExp('\\\\b' + atomics_sub + '\\\\('+heap16+',(.*?),(.*?)\\\\\)', 'g'), '((' + atomics_sub + "_16($1,$2)|0)|0)");
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code = code.replace(new RegExp('\\\\b' + atomics_sub + '\\\\('+heap32+',(.*?),(.*?)\\\\\)', 'g'), '((' + atomics_sub + "_32($1,$2)|0)|0)");
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code = code.replace(new RegExp('\\\\b' + atomics_sub + '\\\\('+heapf32+',(.*?),(.*?)\\\\\)', 'g'), '(' + atomics_sub + "_f32($1,$2)|0)");
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code = code.replace(new RegExp('\\\\b' + atomics_sub + '\\\\('+heapf64+',(.*?),(.*?)\\\\\)', 'g'), '(' + atomics_sub + "_f64($1,$2)|0)");
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code = code.replace(new RegExp('\\\\b' + atomics_and + '\\\\('+heap8+',(.*?),(.*?)\\\\\)', 'g'), '((' + atomics_and + "_8($1,$2)|0)|0)");
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code = code.replace(new RegExp('\\\\b' + atomics_and + '\\\\('+heap16+',(.*?),(.*?)\\\\\)', 'g'), '((' + atomics_and + "_16($1,$2)|0)|0)");
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code = code.replace(new RegExp('\\\\b' + atomics_and + '\\\\('+heap32+',(.*?),(.*?)\\\\\)', 'g'), '((' + atomics_and + "_32($1,$2)|0)|0)");
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code = code.replace(new RegExp('\\\\b' + atomics_or + '\\\\('+heap8+',(.*?),(.*?)\\\\\)', 'g'), '((' + atomics_or + "_8($1,$2)|0)|0)");
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code = code.replace(new RegExp('\\\\b' + atomics_or + '\\\\('+heap16+',(.*?),(.*?)\\\\\)', 'g'), '((' + atomics_or + "_16($1,$2)|0)|0)");
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code = code.replace(new RegExp('\\\\b' + atomics_or + '\\\\('+heap32+',(.*?),(.*?)\\\\\)', 'g'), '((' + atomics_or + "_32($1,$2)|0)|0)");
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code = code.replace(new RegExp('\\\\b' + atomics_xor + '\\\\('+heap8+',(.*?),(.*?)\\\\\)', 'g'), '((' + atomics_xor + "_8($1,$2)|0)|0)");
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code = code.replace(new RegExp('\\\\b' + atomics_xor + '\\\\('+heap16+',(.*?),(.*?)\\\\\)', 'g'), '((' + atomics_xor + "_16($1,$2)|0)|0)");
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code = code.replace(new RegExp('\\\\b' + atomics_xor + '\\\\('+heap32+',(.*?),(.*?)\\\\\)', 'g'), '((' + atomics_xor + "_32($1,$2)|0)|0)");
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code = code.replace(new RegExp('\\\\b' + atomics_compareExchange + '\\\\('+heap8+',(.*?),(.*?),(.*?)\\\\\)', 'g'), '(' + atomics_compareExchange + "_8($1,$2,$3)|0)");
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code = code.replace(new RegExp('\\\\b' + atomics_compareExchange + '\\\\('+heap16+',(.*?),(.*?),(.*?)\\\\\)', 'g'), '(' + atomics_compareExchange + "_16($1,$2,$3)|0)");
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code = code.replace(new RegExp('\\\\b' + atomics_compareExchange + '\\\\('+heap32+',(.*?),(.*?),(.*?)\\\\\)', 'g'), '(' + atomics_compareExchange + "_32($1,$2,$3)|0)");
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code = code.replace(new RegExp('\\\\b' + atomics_compareExchange + '\\\\('+heapf32+',(.*?),(.*?),(.*?)\\\\\)', 'g'), '(' + atomics_compareExchange + "_f32($1,$2,$3)|0)");
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code = code.replace(new RegExp('\\\\b' + atomics_compareExchange + '\\\\('+heapf64+',(.*?),(.*?),(.*?)\\\\\)', 'g'), '(' + atomics_compareExchange + "_f64($1,$2,$3)|0)");
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// Remove the import statements of Atomics built-ins.
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code = code.replace(new RegExp("var " + atomics_load + "\\\\s*=\\\\s*global\\.Atomics\\.load;"), "");
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code = code.replace(new RegExp("var " + atomics_store + "\\\\s*=\\\\s*global\\.Atomics\\.store;"), "");
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code = code.replace(new RegExp("var " + atomics_compareExchange + "\\\\s*=\\\\s*global\\.Atomics\\.compareExchange;"), "");
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code = code.replace(new RegExp("var " + atomics_add + "\\\\s*=\\\\s*global\\.Atomics\\.add;"), "");
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code = code.replace(new RegExp("var " + atomics_sub + "\\\\s*=\\\\s*global\\.Atomics\\.sub;"), "");
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code = code.replace(new RegExp("var " + atomics_and + "\\\\s*=\\\\s*global\\.Atomics\\.and;"), "");
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code = code.replace(new RegExp("var " + atomics_or + "\\\\s*=\\\\s*global\\.Atomics\\.or;"), "");
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code = code.replace(new RegExp("var " + atomics_xor + "\\\\s*=\\\\s*global\\.Atomics\\.xor;"), "");
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code = code.replace(new RegExp("var " + atomics_fence + "\\\\s*=\\\\s*global\\.Atomics\\.fence;"), "");
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// Implement polyfill versions of Atomics intrinsics inside the asm.js scope.
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code = code.replace("// EMSCRIPTEN_START_FUNCS", "// EMSCRIPTEN_START_FUNCS\\n"
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+ "function " + atomics_add + "_8(i,v) { i=i|0; v=v|0; var w=0; w="+heap8+"[i>>0]|0; "+heap8+"[i>>0]=("+heap8+"[i>>0]|0)+(v|0); return w|0; }\\n"
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+ "function " + atomics_add + "_16(i,v) { i=i|0; v=v|0; var w=0; w="+heap16+"[i<<1>>1]|0; "+heap16+"[i<<1>>1]=("+heap16+"[i<<1>>1]|0)+(v|0); return w|0; }\\n"
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+ "function " + atomics_add + "_32(i,v) { i=i|0; v=v|0; var w=0; w="+heap32+"[i<<2>>2]|0; "+heap32+"[i<<2>>2]=("+heap32+"[i<<2>>2]|0)+(v|0); return w|0; }\\n"
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+ "function " + atomics_add + "_f32(i,v) { i=i|0; v="+math_fround+"v"+cp+"; var w="+zero+"; w="+math_fround+heapf32+"[i<<2>>2]"+cp+"; "+heapf32+"[i<<2>>2]="+math_fround+heapf32+"[i<<2>>2]"+cp+"+v; return w; }\\n"
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+ "function " + atomics_add + "_f64(i,v) { i=i|0; v=+v; var w=0.0; w=+"+heapf64+"[i<<3>>3]; "+heapf64+"[i<<3>>3]="+heapf64+"[i<<3>>3]+v; return w; }\\n"
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+ "function " + atomics_sub + "_8(i,v) { i=i|0; v=v|0; var w=0; w="+heap8+"[i>>0]|0; "+heap8+"[i>>0]=("+heap8+"[i>>0]|0)-(v|0); return w|0; }\\n"
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+ "function " + atomics_sub + "_16(i,v) { i=i|0; v=v|0; var w=0; w="+heap16+"[i<<1>>1]|0; "+heap16+"[i<<1>>1]=("+heap16+"[i<<1>>1]|0)-(v|0); return w|0; }\\n"
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+ "function " + atomics_sub + "_32(i,v) { i=i|0; v=v|0; var w=0; w="+heap32+"[i<<2>>2]|0; "+heap32+"[i<<2>>2]=("+heap32+"[i<<2>>2]|0)-(v|0); return w|0; }\\n"
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+ "function " + atomics_sub + "_f32(i,v) { i=i|0; v="+math_fround+"v"+cp+"; var w="+zero+"; w="+math_fround+heapf32+"[i<<2>>2]"+cp+"; "+heapf32+"[i<<2>>2]="+math_fround+heapf32+"[i<<2>>2]"+cp+"-v; return w; }\\n"
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+ "function " + atomics_sub + "_f64(i,v) { i=i|0; v=+v; var w=0.0; w=+"+heapf64+"[i<<3>>3]; "+heapf64+"[i<<3>>3]="+heapf64+"[i<<3>>3]-v; return w; }\\n"
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+ "function " + atomics_and + "_8(i,v) { i=i|0; v=v|0; var w=0; w="+heap8+"[i>>0]|0; "+heap8+"[i>>0]=("+heap8+"[i>>0]|0)&(v|0); return w|0; }\\n"
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+ "function " + atomics_and + "_16(i,v) { i=i|0; v=v|0; var w=0; w="+heap16+"[i<<1>>1]|0; "+heap16+"[i<<1>>1]=("+heap16+"[i<<1>>1]|0)&(v|0); return w|0; }\\n"
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+ "function " + atomics_and + "_32(i,v) { i=i|0; v=v|0; var w=0; w="+heap32+"[i<<2>>2]|0; "+heap32+"[i<<2>>2]=("+heap32+"[i<<2>>2]|0)&(v|0); return w|0; }\\n"
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+ "function " + atomics_or + "_8(i,v) { i=i|0; v=v|0; var w=0; w="+heap8+"[i>>0]|0; "+heap8+"[i>>0]=("+heap8+"[i>>0]|0)|(v|0); return w|0; }\\n"
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+ "function " + atomics_or + "_16(i,v) { i=i|0; v=v|0; var w=0; w="+heap16+"[i<<1>>1]|0; "+heap16+"[i<<1>>1]=("+heap16+"[i<<1>>1]|0)|(v|0); return w|0; }\\n"
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+ "function " + atomics_or + "_32(i,v) { i=i|0; v=v|0; var w=0; w="+heap32+"[i<<2>>2]|0; "+heap32+"[i<<2>>2]=("+heap32+"[i<<2>>2]|0)|(v|0); return w|0; }\\n"
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+ "function " + atomics_xor + "_8(i,v) { i=i|0; v=v|0; var w=0; w="+heap8+"[i>>0]|0; "+heap8+"[i>>0]=("+heap8+"[i>>0]|0)^(v|0); return w|0; }\\n"
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+ "function " + atomics_xor + "_16(i,v) { i=i|0; v=v|0; var w=0; w="+heap16+"[i<<1>>1]|0; "+heap16+"[i<<1>>1]=("+heap16+"[i<<1>>1]|0)^(v|0); return w|0; }\\n"
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+ "function " + atomics_xor + "_32(i,v) { i=i|0; v=v|0; var w=0; w="+heap32+"[i<<2>>2]|0; "+heap32+"[i<<2>>2]=("+heap32+"[i<<2>>2]|0)^(v|0); return w|0; }\\n"
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+ "function " + atomics_compareExchange + "_8(i,e,r) { i=i|0; e=e|0; r=r|0; var w=0; w="+heap8+"[i>>0]|0; if ((w|0) == (e|0)) "+heap8+"[i>>0]=r; return w|0; }\\n"
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+ "function " + atomics_compareExchange + "_16(i,e,r) { i=i|0; e=e|0; r=r|0; var w=0; w="+heap16+"[i<<1>>1]|0; if ((w|0) == (e|0)) "+heap16+"[i<<1>>1]=r; return w|0; }\\n"
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+ "function " + atomics_compareExchange + "_32(i,e,r) { i=i|0; e=e|0; r=r|0; var w=0; w="+heap32+"[i<<2>>2]|0; if ((w|0) == (e|0)) "+heap32+"[i<<2>>2]=r; return w|0; }\\n"
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+ "function " + atomics_compareExchange + "_f32(i,e,r) { i=i|0; e="+math_fround+"e"+cp+"; r="+math_fround+"r"+cp+"; var w="+zero+"; w="+math_fround+heapf32+"[i<<2>>2]"+cp+"; if (w == e) "+heapf32+"[i<<2>>2]=r; return w; }\\n"
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+ "function " + atomics_compareExchange + "_f64(i,e,r) { i=i|0; e=+e; r=+r; var w=0.0; w=+"+heapf64+"[i<<3>>3]; if (+w == +e) "+heapf64+"[i<<3>>3]=r; return w; }\\n"
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+ "function " + atomics_fence + "() {}\\n"
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);
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var t1 = performance.now();
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console.log('SAB+Atomics removed in ' + (t1-t0) + ' msecs.');
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} catch(e) { console.log('Failed to optimize out SharedArrayBuffer calls ' + e); }
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} // if no SharedInt8Array
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''')
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from tools import client_mods
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asm_mods = client_mods.get_mods(shared.Settings, minified = 'minifyNames' in js_optimizer_queue_history, separate_asm = separate_asm)
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if shared.Settings.EMTERPRETIFY_FILE:
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# We need to load the emterpreter file before anything else, it has to be synchronously ready
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@ -0,0 +1,186 @@
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class PreciseF32:
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name = 'PRECISE_F32 == 2'
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@staticmethod
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def get(settings, minified):
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if settings.PRECISE_F32 == 2:
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# Potentially-modifiable code, load as text, modify, then execute. This lets you
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# patch the code on the client machine right before it is executed, perhaps based
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# on information about the client.
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mod = '''
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console.log('optimizing out Math.fround calls');
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code = code.replace("'use asm'", "'almost asm'").replace('"use asm"', '"almost asm"');
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'''
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if not minified:
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# simple dumb replace
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mod += "code = code.replace(/Math_fround\(/g, '(')\n";
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else:
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# minified, not quite so simple
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mod += '''
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try {
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console.log('optimizing out Math.fround calls');
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var m = /var ([^=]+)=global\.Math\.fround;/.exec(code);
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var minified = m[1];
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if (!minified) throw 'fail';
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do {
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var moar = false; // we need to re-do, as x(x( will not be fixed
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code = code.replace(new RegExp('[^a-zA-Z0-9\\\\$\\\\_]' + minified + '\\\\(', 'g'), function(s) { moar = true; return s[0] + '(' });
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} while (moar);
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} catch(e) { console.log('failed to optimize out Math.fround calls ' + e) }
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'''
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return ['if (!Math.fround) { ' + mod + ' }']
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return []
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class Pthreads:
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name = 'USE_PTHREADS == 2'
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||||
|
||||
@staticmethod
|
||||
def get(settings, minified):
|
||||
if settings.USE_PTHREADS == 2:
|
||||
return ['''if (typeof SharedInt8Array === "undefined") {
|
||||
try {
|
||||
console.log('This browser does not support SharedArrayBuffer/Atomics/pthreads! Patching out SharedArrayBuffer usage...');
|
||||
var t0 = performance.now();
|
||||
// "new global.SharedInt8Array(buffer)" -> "new global.Int8Array(buffer)" and likewise for other buffer types.
|
||||
code = code.replace(/new\s+global\.Shared(.*?)Array\(buffer\);/g, "new global.$1Array(buffer);");
|
||||
|
||||
// In minified builds the interesting symbol names are mangled, so we have to first find what they are.
|
||||
var math_fround = /var\s+([^=]+?)\s*=\s*global\.Math\.fround;/.exec(code);
|
||||
var cp;
|
||||
var zero;
|
||||
if (math_fround && math_fround.length >= 2) {
|
||||
math_fround = math_fround[1] + '(';
|
||||
cp = ')';
|
||||
zero = math_fround + '0)';
|
||||
} else {
|
||||
math_fround = "+";
|
||||
cp = '';
|
||||
zero = '0.0';
|
||||
}
|
||||
var heap8 = /var\s+([^=]+?)\s*=\s*new global\.Int8Array\(buffer\);/.exec(code)[1];
|
||||
var heap16 = /var\s+([^=]+?)\s*=\s*new global\.Int16Array\(buffer\);/.exec(code)[1];
|
||||
var heap32 = /var\s+([^=]+?)\s*=\s*new global\.Int32Array\(buffer\);/.exec(code)[1];
|
||||
var heapf32 = /var\s+([^=]+?)\s*=\s*new global\.Float32Array\(buffer\);/.exec(code)[1];
|
||||
var heapf64 = /var\s+([^=]+?)\s*=\s*new global\.Float64Array\(buffer\);/.exec(code)[1];
|
||||
var atomics_load = /var\s+([^=]+?)\s*=\s*global\.Atomics\.load;/.exec(code)[1];
|
||||
var atomics_store = /var\s+([^=]+?)\s*=\s*global\.Atomics\.store;/.exec(code)[1];
|
||||
var atomics_compareExchange = /var\s+([^=]+?)\s*=\s*global\.Atomics\.compareExchange;/.exec(code)[1];
|
||||
var atomics_add = /var\s+([^=]+?)\s*=\s*global\.Atomics\.add;/.exec(code)[1];
|
||||
var atomics_sub = /var\s+([^=]+?)\s*=\s*global\.Atomics\.sub;/.exec(code)[1];
|
||||
var atomics_and = /var\s+([^=]+?)\s*=\s*global\.Atomics\.and;/.exec(code)[1];
|
||||
var atomics_or = /var\s+([^=]+?)\s*=\s*global\.Atomics\.or;/.exec(code)[1];
|
||||
var atomics_xor = /var\s+([^=]+?)\s*=\s*global\.Atomics\.xor;/.exec(code)[1];
|
||||
var atomics_fence = /var\s+([^=]+?)\s*=\s*global\.Atomics\.fence;/.exec(code)[1];
|
||||
|
||||
// "Atomics_load(HEAP32, index)" -> "HEAP32[index]|0" and same for other heap types.
|
||||
code = code.replace(new RegExp('\\\\b' + atomics_load + '\\\\((' + heap8 + ')\w*,(.*?)\\\\\)', 'g'), "($1[$2]|0)");
|
||||
code = code.replace(new RegExp('\\\\b' + atomics_load + '\\\\((' + heap16 + ')\w*,(.*?)\\\\\)', 'g'), "($1[$2]|0)");
|
||||
code = code.replace(new RegExp('\\\\b' + atomics_load + '\\\\((' + heap32 + ')\w*,(.*?)\\\\\)', 'g'), "($1[$2]|0)");
|
||||
code = code.replace(new RegExp('\\\\b' + atomics_load + '\\\\((' + heapf32 + ')\w*,(.*?)\\\\\)', 'g'), math_fround + "$1[$2]"+cp);
|
||||
code = code.replace(new RegExp('\\\\b' + atomics_load + '\\\\((' + heapf64 + ')\w*,(.*?)\\\\\)', 'g'), "(+$1[$2])");
|
||||
|
||||
// "Atomics_store(HEAP32, index, value)" -> "HEAP32[index] = value" and same for other heap types.
|
||||
code = code.replace(new RegExp('\\\\b' + atomics_store + '\\\\((.*?),(.*?),(.*?)\\\\\)', 'g'), "($1[$2] = $3)");
|
||||
|
||||
// The Atomics built-ins take as first parameter the heap object, however when replacing those with
|
||||
// polyfill versions, it is not possible to pass a heap object as the first parameter. Therefore
|
||||
// route each call to Atomics to a polyfill function for each type, e.g. "Atomics_add(HEAP32, index, val)" -> "Atomics_add_32(index, val)"
|
||||
code = code.replace(new RegExp('\\\\b' + atomics_add + '\\\\('+heap8+',(.*?),(.*?)\\\\\)', 'g'), '((' + atomics_add + "_8($1,$2)|0)|0)");
|
||||
code = code.replace(new RegExp('\\\\b' + atomics_add + '\\\\('+heap16+',(.*?),(.*?)\\\\\)', 'g'), '((' + atomics_add + "_16($1,$2)|0)|0)");
|
||||
code = code.replace(new RegExp('\\\\b' + atomics_add + '\\\\('+heap32+',(.*?),(.*?)\\\\\)', 'g'), '((' + atomics_add + "_32($1,$2)|0)|0)");
|
||||
code = code.replace(new RegExp('\\\\b' + atomics_add + '\\\\('+heapf32+',(.*?),(.*?)\\\\\)', 'g'), '(' + atomics_add + "_f32($1,$2)|0)");
|
||||
code = code.replace(new RegExp('\\\\b' + atomics_add + '\\\\('+heapf64+',(.*?),(.*?)\\\\\)', 'g'), '(' + atomics_add + "_f64($1,$2)|0)");
|
||||
|
||||
code = code.replace(new RegExp('\\\\b' + atomics_sub + '\\\\('+heap8+',(.*?),(.*?)\\\\\)', 'g'), '((' + atomics_sub + "_8($1,$2)|0)|0)");
|
||||
code = code.replace(new RegExp('\\\\b' + atomics_sub + '\\\\('+heap16+',(.*?),(.*?)\\\\\)', 'g'), '((' + atomics_sub + "_16($1,$2)|0)|0)");
|
||||
code = code.replace(new RegExp('\\\\b' + atomics_sub + '\\\\('+heap32+',(.*?),(.*?)\\\\\)', 'g'), '((' + atomics_sub + "_32($1,$2)|0)|0)");
|
||||
code = code.replace(new RegExp('\\\\b' + atomics_sub + '\\\\('+heapf32+',(.*?),(.*?)\\\\\)', 'g'), '(' + atomics_sub + "_f32($1,$2)|0)");
|
||||
code = code.replace(new RegExp('\\\\b' + atomics_sub + '\\\\('+heapf64+',(.*?),(.*?)\\\\\)', 'g'), '(' + atomics_sub + "_f64($1,$2)|0)");
|
||||
|
||||
code = code.replace(new RegExp('\\\\b' + atomics_and + '\\\\('+heap8+',(.*?),(.*?)\\\\\)', 'g'), '((' + atomics_and + "_8($1,$2)|0)|0)");
|
||||
code = code.replace(new RegExp('\\\\b' + atomics_and + '\\\\('+heap16+',(.*?),(.*?)\\\\\)', 'g'), '((' + atomics_and + "_16($1,$2)|0)|0)");
|
||||
code = code.replace(new RegExp('\\\\b' + atomics_and + '\\\\('+heap32+',(.*?),(.*?)\\\\\)', 'g'), '((' + atomics_and + "_32($1,$2)|0)|0)");
|
||||
|
||||
code = code.replace(new RegExp('\\\\b' + atomics_or + '\\\\('+heap8+',(.*?),(.*?)\\\\\)', 'g'), '((' + atomics_or + "_8($1,$2)|0)|0)");
|
||||
code = code.replace(new RegExp('\\\\b' + atomics_or + '\\\\('+heap16+',(.*?),(.*?)\\\\\)', 'g'), '((' + atomics_or + "_16($1,$2)|0)|0)");
|
||||
code = code.replace(new RegExp('\\\\b' + atomics_or + '\\\\('+heap32+',(.*?),(.*?)\\\\\)', 'g'), '((' + atomics_or + "_32($1,$2)|0)|0)");
|
||||
|
||||
code = code.replace(new RegExp('\\\\b' + atomics_xor + '\\\\('+heap8+',(.*?),(.*?)\\\\\)', 'g'), '((' + atomics_xor + "_8($1,$2)|0)|0)");
|
||||
code = code.replace(new RegExp('\\\\b' + atomics_xor + '\\\\('+heap16+',(.*?),(.*?)\\\\\)', 'g'), '((' + atomics_xor + "_16($1,$2)|0)|0)");
|
||||
code = code.replace(new RegExp('\\\\b' + atomics_xor + '\\\\('+heap32+',(.*?),(.*?)\\\\\)', 'g'), '((' + atomics_xor + "_32($1,$2)|0)|0)");
|
||||
|
||||
code = code.replace(new RegExp('\\\\b' + atomics_compareExchange + '\\\\('+heap8+',(.*?),(.*?),(.*?)\\\\\)', 'g'), '(' + atomics_compareExchange + "_8($1,$2,$3)|0)");
|
||||
code = code.replace(new RegExp('\\\\b' + atomics_compareExchange + '\\\\('+heap16+',(.*?),(.*?),(.*?)\\\\\)', 'g'), '(' + atomics_compareExchange + "_16($1,$2,$3)|0)");
|
||||
code = code.replace(new RegExp('\\\\b' + atomics_compareExchange + '\\\\('+heap32+',(.*?),(.*?),(.*?)\\\\\)', 'g'), '(' + atomics_compareExchange + "_32($1,$2,$3)|0)");
|
||||
code = code.replace(new RegExp('\\\\b' + atomics_compareExchange + '\\\\('+heapf32+',(.*?),(.*?),(.*?)\\\\\)', 'g'), '(' + atomics_compareExchange + "_f32($1,$2,$3)|0)");
|
||||
code = code.replace(new RegExp('\\\\b' + atomics_compareExchange + '\\\\('+heapf64+',(.*?),(.*?),(.*?)\\\\\)', 'g'), '(' + atomics_compareExchange + "_f64($1,$2,$3)|0)");
|
||||
|
||||
// Remove the import statements of Atomics built-ins.
|
||||
code = code.replace(new RegExp("var " + atomics_load + "\\\\s*=\\\\s*global\\.Atomics\\.load;"), "");
|
||||
code = code.replace(new RegExp("var " + atomics_store + "\\\\s*=\\\\s*global\\.Atomics\\.store;"), "");
|
||||
code = code.replace(new RegExp("var " + atomics_compareExchange + "\\\\s*=\\\\s*global\\.Atomics\\.compareExchange;"), "");
|
||||
code = code.replace(new RegExp("var " + atomics_add + "\\\\s*=\\\\s*global\\.Atomics\\.add;"), "");
|
||||
code = code.replace(new RegExp("var " + atomics_sub + "\\\\s*=\\\\s*global\\.Atomics\\.sub;"), "");
|
||||
code = code.replace(new RegExp("var " + atomics_and + "\\\\s*=\\\\s*global\\.Atomics\\.and;"), "");
|
||||
code = code.replace(new RegExp("var " + atomics_or + "\\\\s*=\\\\s*global\\.Atomics\\.or;"), "");
|
||||
code = code.replace(new RegExp("var " + atomics_xor + "\\\\s*=\\\\s*global\\.Atomics\\.xor;"), "");
|
||||
code = code.replace(new RegExp("var " + atomics_fence + "\\\\s*=\\\\s*global\\.Atomics\\.fence;"), "");
|
||||
|
||||
// Implement polyfill versions of Atomics intrinsics inside the asm.js scope.
|
||||
code = code.replace("// EMSCRIPTEN_START_FUNCS", "// EMSCRIPTEN_START_FUNCS\\n"
|
||||
+ "function " + atomics_add + "_8(i,v) { i=i|0; v=v|0; var w=0; w="+heap8+"[i>>0]|0; "+heap8+"[i>>0]=("+heap8+"[i>>0]|0)+(v|0); return w|0; }\\n"
|
||||
+ "function " + atomics_add + "_16(i,v) { i=i|0; v=v|0; var w=0; w="+heap16+"[i<<1>>1]|0; "+heap16+"[i<<1>>1]=("+heap16+"[i<<1>>1]|0)+(v|0); return w|0; }\\n"
|
||||
+ "function " + atomics_add + "_32(i,v) { i=i|0; v=v|0; var w=0; w="+heap32+"[i<<2>>2]|0; "+heap32+"[i<<2>>2]=("+heap32+"[i<<2>>2]|0)+(v|0); return w|0; }\\n"
|
||||
+ "function " + atomics_add + "_f32(i,v) { i=i|0; v="+math_fround+"v"+cp+"; var w="+zero+"; w="+math_fround+heapf32+"[i<<2>>2]"+cp+"; "+heapf32+"[i<<2>>2]="+math_fround+heapf32+"[i<<2>>2]"+cp+"+v; return w; }\\n"
|
||||
+ "function " + atomics_add + "_f64(i,v) { i=i|0; v=+v; var w=0.0; w=+"+heapf64+"[i<<3>>3]; "+heapf64+"[i<<3>>3]="+heapf64+"[i<<3>>3]+v; return w; }\\n"
|
||||
|
||||
+ "function " + atomics_sub + "_8(i,v) { i=i|0; v=v|0; var w=0; w="+heap8+"[i>>0]|0; "+heap8+"[i>>0]=("+heap8+"[i>>0]|0)-(v|0); return w|0; }\\n"
|
||||
+ "function " + atomics_sub + "_16(i,v) { i=i|0; v=v|0; var w=0; w="+heap16+"[i<<1>>1]|0; "+heap16+"[i<<1>>1]=("+heap16+"[i<<1>>1]|0)-(v|0); return w|0; }\\n"
|
||||
+ "function " + atomics_sub + "_32(i,v) { i=i|0; v=v|0; var w=0; w="+heap32+"[i<<2>>2]|0; "+heap32+"[i<<2>>2]=("+heap32+"[i<<2>>2]|0)-(v|0); return w|0; }\\n"
|
||||
+ "function " + atomics_sub + "_f32(i,v) { i=i|0; v="+math_fround+"v"+cp+"; var w="+zero+"; w="+math_fround+heapf32+"[i<<2>>2]"+cp+"; "+heapf32+"[i<<2>>2]="+math_fround+heapf32+"[i<<2>>2]"+cp+"-v; return w; }\\n"
|
||||
+ "function " + atomics_sub + "_f64(i,v) { i=i|0; v=+v; var w=0.0; w=+"+heapf64+"[i<<3>>3]; "+heapf64+"[i<<3>>3]="+heapf64+"[i<<3>>3]-v; return w; }\\n"
|
||||
|
||||
+ "function " + atomics_and + "_8(i,v) { i=i|0; v=v|0; var w=0; w="+heap8+"[i>>0]|0; "+heap8+"[i>>0]=("+heap8+"[i>>0]|0)&(v|0); return w|0; }\\n"
|
||||
+ "function " + atomics_and + "_16(i,v) { i=i|0; v=v|0; var w=0; w="+heap16+"[i<<1>>1]|0; "+heap16+"[i<<1>>1]=("+heap16+"[i<<1>>1]|0)&(v|0); return w|0; }\\n"
|
||||
+ "function " + atomics_and + "_32(i,v) { i=i|0; v=v|0; var w=0; w="+heap32+"[i<<2>>2]|0; "+heap32+"[i<<2>>2]=("+heap32+"[i<<2>>2]|0)&(v|0); return w|0; }\\n"
|
||||
|
||||
+ "function " + atomics_or + "_8(i,v) { i=i|0; v=v|0; var w=0; w="+heap8+"[i>>0]|0; "+heap8+"[i>>0]=("+heap8+"[i>>0]|0)|(v|0); return w|0; }\\n"
|
||||
+ "function " + atomics_or + "_16(i,v) { i=i|0; v=v|0; var w=0; w="+heap16+"[i<<1>>1]|0; "+heap16+"[i<<1>>1]=("+heap16+"[i<<1>>1]|0)|(v|0); return w|0; }\\n"
|
||||
+ "function " + atomics_or + "_32(i,v) { i=i|0; v=v|0; var w=0; w="+heap32+"[i<<2>>2]|0; "+heap32+"[i<<2>>2]=("+heap32+"[i<<2>>2]|0)|(v|0); return w|0; }\\n"
|
||||
|
||||
+ "function " + atomics_xor + "_8(i,v) { i=i|0; v=v|0; var w=0; w="+heap8+"[i>>0]|0; "+heap8+"[i>>0]=("+heap8+"[i>>0]|0)^(v|0); return w|0; }\\n"
|
||||
+ "function " + atomics_xor + "_16(i,v) { i=i|0; v=v|0; var w=0; w="+heap16+"[i<<1>>1]|0; "+heap16+"[i<<1>>1]=("+heap16+"[i<<1>>1]|0)^(v|0); return w|0; }\\n"
|
||||
+ "function " + atomics_xor + "_32(i,v) { i=i|0; v=v|0; var w=0; w="+heap32+"[i<<2>>2]|0; "+heap32+"[i<<2>>2]=("+heap32+"[i<<2>>2]|0)^(v|0); return w|0; }\\n"
|
||||
|
||||
+ "function " + atomics_compareExchange + "_8(i,e,r) { i=i|0; e=e|0; r=r|0; var w=0; w="+heap8+"[i>>0]|0; if ((w|0) == (e|0)) "+heap8+"[i>>0]=r; return w|0; }\\n"
|
||||
+ "function " + atomics_compareExchange + "_16(i,e,r) { i=i|0; e=e|0; r=r|0; var w=0; w="+heap16+"[i<<1>>1]|0; if ((w|0) == (e|0)) "+heap16+"[i<<1>>1]=r; return w|0; }\\n"
|
||||
+ "function " + atomics_compareExchange + "_32(i,e,r) { i=i|0; e=e|0; r=r|0; var w=0; w="+heap32+"[i<<2>>2]|0; if ((w|0) == (e|0)) "+heap32+"[i<<2>>2]=r; return w|0; }\\n"
|
||||
+ "function " + atomics_compareExchange + "_f32(i,e,r) { i=i|0; e="+math_fround+"e"+cp+"; r="+math_fround+"r"+cp+"; var w="+zero+"; w="+math_fround+heapf32+"[i<<2>>2]"+cp+"; if (w == e) "+heapf32+"[i<<2>>2]=r; return w; }\\n"
|
||||
+ "function " + atomics_compareExchange + "_f64(i,e,r) { i=i|0; e=+e; r=+r; var w=0.0; w=+"+heapf64+"[i<<3>>3]; if (+w == +e) "+heapf64+"[i<<3>>3]=r; return w; }\\n"
|
||||
|
||||
+ "function " + atomics_fence + "() {}\\n"
|
||||
);
|
||||
|
||||
var t1 = performance.now();
|
||||
console.log('SAB+Atomics removed in ' + (t1-t0) + ' msecs.');
|
||||
} catch(e) { console.log('Failed to optimize out SharedArrayBuffer calls ' + e); }
|
||||
} // if no SharedInt8Array
|
||||
''']
|
||||
return []
|
||||
|
||||
# Handlers
|
||||
|
||||
handlers = [PreciseF32, Pthreads]
|
||||
|
||||
# client-side asm code modification
|
||||
|
||||
def get_mods(settings, minified, separate_asm):
|
||||
ret = []
|
||||
for handler in handlers:
|
||||
curr = handler.get(settings, minified)
|
||||
if curr:
|
||||
assert separate_asm, 'options that modify code on the client, like ' + handler.name + ', require --separate-asm'
|
||||
ret = ret + curr
|
||||
return ret
|
||||
|
||||
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