7bc40bd54a
Tag String.prototype.charAt as a builtin and emit a dedicated bytecode instruction for non-computed calls. The asm interpreter can then stay on the fast path when the receiver is a primitive string with resident UTF-16 data and the selected code unit is ASCII. In that case we can return the VM's cached empty or single-character ASCII string directly. |
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| .. | ||
| asmint.asm | ||
| AsmInterpreter.cpp | ||
| AsmInterpreter.h | ||
| gen_asm_offsets.cpp | ||