llv8
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Implement DoStackCheck
Right now we ignore HStackCheck nodes, which is of course incorrect.
- Execution of llvmed code now is faster that it will be once we solve this issue.
- If all JavaScript functions in a program are llvmed, no one will triggers GC.
Implementation shouldn't be too difficult.
llvm::Intrinsic::read_register
might be of help. The last resort is inline assembly.