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https://github.com/luau-lang/luau.git
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1212fdacbf
Once again, all of our changes this week are for new type solver and the JIT. In the new type solver, we fixed cyclic type alias handling and multiple stability issues. In the JIT, our main progress was for arm64, where, after lowering 36% of instructions, we start seeing first Luau functions executing natively. For x64, we performed code cleanup and refactoring to allow for future optimizations.
74 lines
2.2 KiB
C++
74 lines
2.2 KiB
C++
// This file is part of the Luau programming language and is licensed under MIT License; see LICENSE.txt for details
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#include "EmitInstructionA64.h"
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#include "Luau/AssemblyBuilderA64.h"
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#include "EmitCommonA64.h"
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#include "NativeState.h"
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#include "CustomExecUtils.h"
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namespace Luau
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{
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namespace CodeGen
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{
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namespace A64
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{
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void emitInstReturn(AssemblyBuilderA64& build, ModuleHelpers& helpers, int ra, int n)
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{
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// callFallback(L, ra, n)
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build.mov(x0, rState);
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build.add(x1, rBase, uint16_t(ra * sizeof(TValue)));
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build.mov(w2, n);
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build.ldr(x3, mem(rNativeContext, offsetof(NativeContext, returnFallback)));
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build.blr(x3);
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// reentry with x0=closure (NULL will trigger exit)
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build.b(helpers.reentry);
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}
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void emitInstCall(AssemblyBuilderA64& build, ModuleHelpers& helpers, int ra, int nparams, int nresults)
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{
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// argtop = (nparams == LUA_MULTRET) ? L->top : ra + 1 + nparams;
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if (nparams == LUA_MULTRET)
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build.ldr(x2, mem(rState, offsetof(lua_State, top)));
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else
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build.add(x2, rBase, uint16_t((ra + 1 + nparams) * sizeof(TValue)));
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// callFallback(L, ra, argtop, nresults)
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build.mov(x0, rState);
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build.add(x1, rBase, uint16_t(ra * sizeof(TValue)));
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build.mov(w3, nresults);
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build.ldr(x4, mem(rNativeContext, offsetof(NativeContext, callFallback)));
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build.blr(x4);
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// reentry with x0=closure (NULL will trigger exit)
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build.b(helpers.reentry);
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}
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void emitInstGetImport(AssemblyBuilderA64& build, int ra, uint32_t aux)
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{
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// luaV_getimport(L, cl->env, k, aux, /* propagatenil= */ false)
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build.mov(x0, rState);
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build.ldr(x1, mem(rClosure, offsetof(Closure, env)));
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build.mov(x2, rConstants);
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build.mov(w3, aux);
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build.mov(w4, 0);
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build.ldr(x5, mem(rNativeContext, offsetof(NativeContext, luaV_getimport)));
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build.blr(x5);
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emitUpdateBase(build);
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// setobj2s(L, ra, L->top - 1)
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build.ldr(x0, mem(rState, offsetof(lua_State, top)));
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build.sub(x0, x0, sizeof(TValue));
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build.ldr(q0, x0);
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build.str(q0, mem(rBase, ra * sizeof(TValue)));
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// L->top--
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build.str(x0, mem(rState, offsetof(lua_State, top)));
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}
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} // namespace A64
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} // namespace CodeGen
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} // namespace Luau
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