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Build transactions at runtime

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Drop _xbegin family intrinsics due to bad codegen
Implemented `notifier` class, replacing vm::notify
Minor optimization: detach transactions from global mutex on TSX path
Minor optimization: don't acquire vm::passive_lock on PPU on TSX path
This commit is contained in:
Nekotekina 2018-05-14 23:07:36 +03:00
parent fd525ae1cf
commit 367f039523
14 changed files with 529 additions and 339 deletions
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6
Utilities/JIT.cpp
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@ -7,14 +7,14 @@ asmjit::JitRuntime& asmjit::get_global_runtime()
return g_rt;
}
void asmjit::build_transaction_enter(asmjit::X86Assembler& c, asmjit::Label abort)
void asmjit::build_transaction_enter(asmjit::X86Assembler& c, asmjit::Label fallback)
{
Label fall = c.newLabel();
Label begin = c.newLabel();
c.jmp(begin);
c.bind(fall);
c.test(x86::eax, _XABORT_RETRY);
c.jz(abort);
c.jz(fallback);
c.align(kAlignCode, 16);
c.bind(begin);
c.xbegin(fall);
@ -25,8 +25,6 @@ void asmjit::build_transaction_abort(asmjit::X86Assembler& c, unsigned char code
c.db(0xc6);
c.db(0xf8);
c.db(code);
c.xor_(x86::eax, x86::eax);
c.ret();
}
#ifdef LLVM_AVAILABLE