diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/asm2wasm.cpp | 27 | ||||
| -rw-r--r-- | src/wasm.h | 2 |
2 files changed, 24 insertions, 5 deletions
diff --git a/src/asm2wasm.cpp b/src/asm2wasm.cpp index ac2c1d5e8..50f504c6a 100644 --- a/src/asm2wasm.cpp +++ b/src/asm2wasm.cpp @@ -24,7 +24,8 @@ IString GLOBAL("global"), NAN_("NaN"), INFINITY_("Infinity"), FLOAT64ARRAY("Float64Array"), IMPOSSIBLE_CONTINUE("impossible-continue"), MATH("Math"), - IMUL("imul"); + IMUL("imul"), + CLZ32("clz32"); static void abort_on(std::string why) { @@ -246,6 +247,7 @@ class Asm2WasmModule : public wasm::Module { std::map<IString, View> views; // name (e.g. HEAP8) => view info IString Math_imul; // imported name of Math.imul + IString Math_clz32; // imported name of Math.imul // function types. we fill in this information as we see // uses, in the first pass @@ -466,10 +468,16 @@ void Asm2WasmModule::processAsm(Ref ast) { if (module[0] == DOT) { // we can have (global.Math).floor; skip the 'Math' assert(module[1][0] == NAME); - if (module[2] == MATH && imported[2] == IMUL) { - assert(Math_imul.isNull()); - Math_imul = name; - return; + if (module[2] == MATH) { + if (imported[2] == IMUL) { + assert(Math_imul.isNull()); + Math_imul = name; + return; + } else if (imported[2] == CLZ32) { + assert(Math_clz32.isNull()); + Math_clz32 = name; + return; + } } module = module[1]; } @@ -885,6 +893,7 @@ Function* Asm2WasmModule::processFunction(Ref ast) { if (ast[1][0] == NAME) { IString name = ast[1][1]->getIString(); if (name == Math_imul) { + assert(ast[2]->size() == 2); auto ret = allocator.alloc<Binary>(); ret->op = Mul; ret->left = process(ast[2][0]); @@ -892,6 +901,14 @@ Function* Asm2WasmModule::processFunction(Ref ast) { ret->type = BasicType::i32; return ret; } + if (name == Math_clz32) { + assert(ast[2]->size() == 1); + auto ret = allocator.alloc<Unary>(); + ret->op = Clz; + ret->value = process(ast[2][0]); + ret->type = BasicType::i32; + return ret; + } Call* ret; if (imports.find(name) != imports.end()) { ret = allocator.alloc<CallImport>(); diff --git a/src/wasm.h b/src/wasm.h index d8cada7f5..a978e71ca 100644 --- a/src/wasm.h +++ b/src/wasm.h @@ -569,7 +569,9 @@ public: std::ostream& print(std::ostream &o, unsigned indent) override { printOpening(o, "unary "); switch (op) { + case Clz: o << "clz"; break; case Neg: o << "neg"; break; + case Floor: o << "floor"; break; default: abort(); } incIndent(o, indent); |