599 lines
22 KiB
C
599 lines
22 KiB
C
#include "../core.h"
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#include "../core/gstack.h"
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#include "../ns.h"
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#include "../utils/file.h"
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#include "../utils/talloc.h"
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#include "../utils/mut.h"
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#include "nvm.h"
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#ifndef USE_PERF
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#define USE_PERF 0 // enable writing symbols to /tmp/perf-<pid>.map
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#endif
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#ifndef WRITE_ASM
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#define WRITE_ASM 0 // writes on every compilation, overriding the previous; view with:
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#endif // objdump -b binary -m i386 -M x86-64,intel -D --adjust-vma=$(cat asm_off) asm_bin | tail -n+7 | sed "$(cat asm_sed)"
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// separate memory management system for executable code; isn't garbage-collected
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#define BSZ(X) (1ull<<(X))
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#define BSZI(X) ((u8)(64-__builtin_clzl((X)-1ull)))
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#define MMI(X) X
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#define BN(X) mmX_##X
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#define buckets mmX_buckets
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#include "../opt/mm_buddyTemplate.h"
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#define MMI(X) X
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#define ALSZ 17
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#define PROT PROT_READ|PROT_WRITE|PROT_EXEC
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#define FLAGS MAP_NORESERVE|MAP_PRIVATE|MAP_ANON|MAP_32BIT
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#include "../opt/mm_buddyTemplate.c"
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static void* mmX_allocN(usz sz, u8 type) { assert(sz>=16); return mmX_allocL(BSZI(sz), type); }
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#undef mmX_buckets
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#undef BN
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#undef BSZI
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#undef BSZ
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// all the instructions to be called by the generated code
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#define GSP (*--cStack)
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#define GS_UPD { gStack=cStack; }
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#define P(N) B N=GSP;
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#if VM_POS
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#define POS_UPD envCurr->bcL = bc;
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#else
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#define POS_UPD
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#endif
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#define INS NOINLINE __attribute__ ((aligned(64), hot)) // idk man
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INS void i_POPS(B x) {
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dec(x);
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}
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INS void i_INC(Value* v) {
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ptr_inc(v);
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}
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INS B i_FN1C(B f, B x, u32* bc) { POS_UPD; // TODO figure out a way to instead pass an offset in bc, so that shorter `mov`s can be used to pass it
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B r = c1(f, x);
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dec(f); return r;
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}
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INS B i_FN1O(B f, B x, u32* bc) { POS_UPD;
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B r = isNothing(x)? x : c1(f, x);
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dec(f); return r;
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}
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INS B i_FN2C(B w, B f, B x, u32* bc) { POS_UPD;
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B r = c2(f, w, x);
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dec(f); return r;
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}
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INS B i_FN2O(B w, B f, B x, u32* bc) { POS_UPD;
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B r;
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if (isNothing(x)) { dec(w); r = x; }
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else r = isNothing(w)? c1(f, x) : c2(f, w, x);
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dec(f);
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return r;
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}
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INS B i_FN1Oi(B x, BB2B fm, u32* bc) { POS_UPD;
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B r = isNothing(x)? x : fm(b((u64)0), x);
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return r;
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}
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INS B i_FN2Oi(B w, B x, BB2B fm, BBB2B fd, u32* bc) { POS_UPD;
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if (isNothing(x)) { dec(w); return x; }
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else return isNothing(w)? fm(b((u64)0), x) : fd(b((u64)0), w, x);
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}
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INS B i_ARR_0() { // TODO combine with ADDI
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return inc(bi_emptyHVec);
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}
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INS B i_ARR_p(B el0, i64 sz, B* cStack) { assert(sz>0);
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HArr_p r = m_harrUv(sz); // can't use harrs as gStack isn't updated
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bool allNum = isNum(el0);
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r.a[sz-1] = el0;
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for (i64 i = 1; i < sz; i++) if (!isNum(r.a[sz-i-1] = GSP)) allNum = false;
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GS_UPD;
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if (allNum) return withFill(r.b, m_f64(0));
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return r.b;
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}
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INS B i_DFND_0(u32* bc, Scope* sc, Block* bl) { POS_UPD; return m_funBlock(bl, sc); }
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INS B i_DFND_1(u32* bc, Scope* sc, Block* bl) { POS_UPD; return m_md1Block(bl, sc); }
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INS B i_DFND_2(u32* bc, Scope* sc, Block* bl) { POS_UPD; return m_md2Block(bl, sc); }
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INS B i_OP1D(B f,B m, u32* bc) { POS_UPD; return m1_d (m,f ); }
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INS B i_OP2D(B f,B m, B g, u32* bc) { POS_UPD; return m2_d (m,f,g); }
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INS B i_OP2H(B m, B g ) { return m2_h (m, g); }
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INS B i_TR2D(B g, B h ) { return m_atop( g,h); }
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INS B i_TR3D(B f,B g, B h ) { return m_fork(f,g,h); }
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INS B i_TR3O(B f,B g, B h ) { return isNothing(f)? m_atop(g,h) : m_fork(f,g,h); }
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INS B i_NOVAR(u32* bc, B* cStack) {
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POS_UPD; GS_UPD; thrM("Reading variable before its defined");
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}
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INS B i_LOCU(u32 p, Scope* sc) {
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B* vars = sc->vars;
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B r = vars[p];
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vars[p] = bi_optOut;
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return r;
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}
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INS B i_EXTO(u32 p, Scope* sc, u32* bc, B* cStack) {
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B l = sc->ext->vars[p];
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if(l.u==bi_noVar.u) { POS_UPD; GS_UPD; thrM("Reading variable before its defined"); }
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return inc(l);
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}
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INS B i_EXTU(u32 p, Scope* sc) {
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B* vars = sc->ext->vars;
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B r = vars[p];
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vars[p] = bi_optOut;
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return r;
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}
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INS B i_SETN(B s, B x, Scope** pscs, u32* bc) { POS_UPD; v_set(pscs, s, x, false); dec(s); return x; }
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INS B i_SETU(B s, B x, Scope** pscs, u32* bc) { POS_UPD; v_set(pscs, s, x, true ); dec(s); return x; }
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INS B i_SETM(B s, B f, B x, Scope** pscs, u32* bc) { POS_UPD;
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B w = v_get(pscs, s);
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B r = c2(f,w,x); dec(f);
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v_set(pscs, s, r, true); dec(s);
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return r;
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}
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INS B i_SETNi( B x, Scope* sc, u32 p, u32* bc) { POS_UPD; v_setI(sc, p, inc(x), false); return x; }
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INS B i_SETUi( B x, Scope* sc, u32 p, u32* bc) { POS_UPD; v_setI(sc, p, inc(x), true ); return x; }
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INS B i_SETMi(B f, B x, Scope* sc, u32 p, u32* bc) { POS_UPD;
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B w = v_getI(sc, p);
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B r = c2(f,w,x); dec(f);
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v_setI(sc, p, inc(r), true);
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return r;
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}
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INS B i_FLDO(B ns, u32 p, Scope* sc) {
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if (!isNsp(ns)) thrM("Trying to read a field from non-namespace");
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B r = inc(ns_getU(ns, sc->body->nsDesc->nameList, p));
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dec(ns);
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return r;
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}
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INS B i_NSPM(B o, u32 l) {
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FldAlias* a = mm_alloc(sizeof(FldAlias), t_fldAlias);
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a->obj = o;
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a->p = l;
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return tag(a,OBJ_TAG);
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}
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INS B i_CHKV(B x, u32* bc, B* cStack) {
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if(isNothing(x)) { POS_UPD; GS_UPD; thrM("Unexpected Nothing (·)"); }
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return x;
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}
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INS B i_RETD(Scope* sc) {
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Body* b = sc->body;
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ptr_inc(sc);
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ptr_inc(b->nsDesc);
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return m_ns(sc, b->nsDesc);
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}
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#undef INS
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#undef P
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#undef GSP
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#undef GS_UPD
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#undef POS_UPD
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#include "x86_64.h"
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#if USE_PERF
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#include <unistd.h>
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#include "../utils/file.h"
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FILE* perf_map;
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u32 perfid = 0;
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#endif
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static void* nvm_alloc(u64 sz) {
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// void* r = mmap(NULL, sz, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANON|MAP_32BIT, -1, 0);
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// if (r==MAP_FAILED) thrM("JIT: Failed to allocate executable memory");
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// return r;
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TmpFile* src = mmX_allocN(fsizeof(TmpFile,a,u8,sz), t_i8arr);
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arr_shVec((Arr*)src, sz);
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return src->a;
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}
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void nvm_free(u8* ptr) {
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if (!USE_PERF) mmX_free((Value*)RFLD(ptr, TmpFile, a));
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}
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typedef struct SRef { B v; i32 p; } SRef;
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#define SREF(V,P) ((SRef){.v=V, .p=P})
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typedef struct OptRes { u32* bc; u32* offset; B refs; } OptRes;
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static OptRes opt(u32* bc0) {
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TSALLOC(SRef, stk, 8);
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TSALLOC(u8, actions, 64); // 1 per instruction; 0: nothing; 1: indicates return; 2: immediate SET; 3: immediate FN1_/FN2C; 4: FN2O; 5: replace with PUSH; 6: decrement 1 data; 10+N: ignore N data
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TSALLOC(u64, data, 64); // variable length; whatever things are needed for the specific action
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u8 rm_map[] = {10,10,10,11,12,6,6,99,99,99,11,12,13,14,15,16,17,18,19};
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#define RM(N) actions[N] = rm_map[actions[N]]
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u32* bc = bc0; usz pos = 0;
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while (true) {
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u32* sbc = bc;
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#define L64 ({ u64 r = bc[0] | ((u64)bc[1])<<32; bc+= 2; r; })
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bool ret = false;
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u8 cact = 0;
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#define S(N,I) SRef N = stk[TSSIZE(stk)-1-(I)];
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switch (*bc++) { case FN1Ci: case FN1Oi: case FN2Ci: case FN2Oi: thrM("JIT optimization: didn't already expect immediate FN__");
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case ADDU: case ADDI: cact = 0; TSADD(stk,SREF(b(L64), pos)); break;
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case LOCM: { u32 d = *bc++; u32 p = *bc++;
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TSADD(stk,SREF(tag((u64)d<<32 | (u32)p, VAR_TAG), pos));
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break;
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}
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case FN1C: case FN1O: { S(f,0)
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if (!isFun(f.v) || v(f.v)->type!=t_funBI) goto defIns;
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RM(f.p); cact = 3;
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TSADD(data, (u64) c(Fun, f.v)->c1);
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goto defIns;
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}
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case FN2C: { S(f,1)
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if (!isFun(f.v) || v(f.v)->type!=t_funBI) goto defIns;
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cact = 3; RM(f.p);
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TSADD(data, (u64) c(Fun, f.v)->c2);
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goto defIns;
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}
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case FN2O: { S(f,1)
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if (!isFun(f.v) || v(f.v)->type!=t_funBI) goto defIns;
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cact = 4; RM(f.p);
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TSADD(data, (u64) c(Fun, f.v)->c1);
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TSADD(data, (u64) c(Fun, f.v)->c2);
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goto defIns;
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}
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case OP1D: { S(f,0) S(m,1)
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if (f.p==-1 | m.p==-1) goto defIns;
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B d = m1_d(inc(m.v), inc(f.v));
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cact = 5; RM(f.p); RM(m.p);
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TSADD(data, d.u);
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TSSIZE(stk)--;
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stk[TSSIZE(stk)-1] = SREF(d, pos);
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break;
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}
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case OP2D: { S(f,0) S(m,1) S(g,2)
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if (f.p==-1 | m.p==-1 | g.p==-1) goto defIns;
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B d = m2_d(inc(m.v), inc(f.v), inc(g.v));
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cact = 5; RM(f.p); RM(m.p); RM(g.p);
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TSADD(data, d.u);
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TSSIZE(stk)-= 2;
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stk[TSSIZE(stk)-1] = SREF(d, pos);
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break;
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}
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case TR2D: { S(g,0) S(h,1)
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if (g.p==-1 | h.p==-1) goto defIns;
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B d = m_atop(inc(g.v), inc(h.v));
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cact = 5; RM(g.p); RM(h.p);
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TSADD(data, d.u);
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TSSIZE(stk)--;
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stk[TSSIZE(stk)-1] = SREF(d, pos);
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break;
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}
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case TR3D: case TR3O: { S(f,0) S(g,1) S(h,2)
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if (f.p==-1 | g.p==-1 | h.p==-1) goto defIns;
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if (isNothing(f.v)) thrM("JIT optimization: didn't expect constant ·");
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B d = m_fork(inc(f.v), inc(g.v), inc(h.v));
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cact = 5; RM(f.p); RM(g.p); RM(h.p);
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TSADD(data, d.u);
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TSSIZE(stk)-= 2;
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stk[TSSIZE(stk)-1] = SREF(d, pos);
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break;
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}
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case SETN: case SETU: case SETM: { S(s,0)
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if (!isVar(s.v)) goto defIns;
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cact = 2; RM(s.p);
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TSADD(data, s.v.u);
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TSSIZE(stk)-= SETM==*sbc? 2 : 1;
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break;
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}
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case ARRO: case ARRM: { i32 len = *bc++;
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bool allNum = len>0; bool allI32 = true;
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for (i32 i = 0; i < len; i++) { S(c,i);
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if(c.p==-1) goto defIns;
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allNum&= isNum(c.v);
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allI32&= q_i32(c.v);
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}
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TSSIZE(stk)-= len-1; // huh, doing this beforehand works out nicely
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B r;
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if (allNum) {
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if (allI32) { i32* rp; r = m_i32arrv(&rp, len); for (i32 i = 0; i < len; i++) { S(c,-i); rp[i] = o2iu(c.v); } }
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else { f64* rp; r = m_f64arrv(&rp, len); for (i32 i = 0; i < len; i++) { S(c,-i); rp[i] = o2fu(c.v); } }
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} else { HArr_p h = m_harrUv(len); r=h.b; for (i32 i = 0; i < len; i++) { S(c,-i); h.a[i] = inc(c.v); } }
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for (i32 i = 0; i < len; i++) { S(c,-i); RM(c.p); }
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cact = 5;
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TSADD(data, r.u);
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stk[TSSIZE(stk)-1] = SREF(r, pos);
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break;
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}
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case RETN: case RETD:
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ret = true;
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cact = 1;
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goto defIns;
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default: defIns:;
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TSSIZE(stk)-= stackConsumed(sbc);
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i32 added = stackAdded(sbc);
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for (i32 i = 0; i < added; i++) TSADD(stk, SREF(bi_optOut, -1))
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}
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#undef S
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TSADD(actions, cact);
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#undef L64
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#undef RM
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if (ret) break;
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bc = nextBC(sbc);
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pos++;
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}
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TSFREE(stk);
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TSALLOC(u32, rbc, TSSIZE(actions));
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TSALLOC(u32, roff, TSSIZE(actions));
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B refs = inc(bi_emptyHVec);
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bc = bc0;
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u64 tpos = 0, dpos = 0;
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while (true) {
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u32* sbc = bc;
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u32* ebc = nextBC(sbc);
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#define L64 ({ u64 r = bc[0] | ((u64)bc[1])<<32; bc+= 2; r; })
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u32 ctype = actions[tpos++];
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bool ret = false;
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u32 v = *bc++;
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u64 psz = TSSIZE(rbc);
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#define A64(X) { u64 a64=(X); TSADD(rbc, (u32)a64); TSADD(rbc, a64>>32); }
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switch (ctype) { default: UD;
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case 2: assert(v==SETN|v==SETU|v==SETM);
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TSADD(rbc, v==SETN? SETNi : v==SETU? SETUi : SETMi);
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u64 d = data[dpos++];
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TSADD(rbc, (u16)(d>>32));
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TSADD(rbc, (u32)d);
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break;
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case 3: assert(v==FN1C|v==FN1O|v==FN2C);
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TSADD(rbc, v==FN1C? FN1Ci : v==FN1O? FN1Oi : FN2Ci);
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A64(data[dpos++]);
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break;
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case 4: assert(v==FN2O);
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TSADD(rbc, FN2Oi);
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A64(data[dpos++]);
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A64(data[dpos++]);
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break;
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case 5:;
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u64 on = data[dpos++]; B ob = b(on);
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TSADD(rbc, isVal(ob)? ADDI : ADDU);
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A64(on);
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if (isVal(ob)) refs = vec_add(refs, ob);
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break;
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case 6:
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dec(b(data[dpos++]));
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break;
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case 10:
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case 11:case 12:case 13:case 14:case 15:case 16:case 17:case 18:case 19:
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dpos+= ctype-10;
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break;
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case 1: ret = true; goto def2; // return
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case 0: def2:; // do nothing
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TSADDA(rbc, sbc, ebc-sbc);
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}
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u64 added = TSSIZE(rbc)-psz;
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for (i32 i = 0; i < added; i++) TSADD(roff, sbc-bc0);
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#undef A64
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if (ret) break;
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bc = ebc;
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}
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bc = bc0; pos = 0;
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TSFREE(data);
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TSFREE(actions);
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if (a(refs)->ia==0) { dec(refs); refs=m_f64(0); }
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return (OptRes){.bc = rbc, .offset = roff, .refs = refs};
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}
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#undef SREF
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void freeOpt(OptRes o) {
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TSFREEP(o.bc);
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TSFREEP(o.offset);
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}
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static u32 readBytes4(u8* d) {
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return d[0] | d[1]<<8 | d[2]<<16 | d[3]<<24;
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}
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#define ASM_TEST 0 // make -j4 debug&&./BQN&&objdump -b binary -m i386 -M x86-64,intel --insn-width=8 -D --adjust-vma=$(cat asm_off) asm_bin | tail -n+8 | sed "$(cat asm_sed);s/\\t/ /g;s/.*: //"
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#if ASM_TEST
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#undef WRITE_ASM
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#define WRITE_ASM 1
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static void write_asm(u8* p, u64 sz);
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static void asm_test() {
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ALLOC_ASM(64);
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for (int i = 0; i < 16; i++) CALLi(123);
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GET_ASM();
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write_asm(bin, ASM_SIZE);
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exit(0);
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}
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#endif
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#if WRITE_ASM
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static void write_asm(u8* p, u64 sz) {
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i32* rp; B r = m_i32arrv(&rp, sz);
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for (u64 i = 0; i < sz; i++) rp[i] = p[i];
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file_wBytes(m_str32(U"asm_bin"), r); dec(r);
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char off[20]; snprintf(off, 20, "%p", p);
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B o = m_str8l(off);
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file_wChars(m_str32(U"asm_off"), o); dec(o);
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B s = inc(bi_emptyCVec);
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#define F(X) AFMT("s/%p$/%p # i_" #X "/;", i_##X, i_##X);
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F(POPS) F(INC) F(FN1C) F(FN1O) F(FN2C) F(FN2O) F(FN1Oi) F(FN2Oi) F(ARR_0) F(ARR_p) F(DFND_0) F(DFND_1) F(DFND_2) F(OP1D) F(OP2D) F(OP2H) F(TR2D) F(TR3D) F(TR3O) F(LOCU) F(EXTO) F(EXTU) F(SETN) F(SETU) F(SETM) F(FLDO) F(NSPM) F(RETD) F(SETNi) F(SETUi) F(SETMi)
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#undef F
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file_wChars(m_str32(U"asm_sed"), s); dec(s);
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}
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#endif
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typedef B JITFn(B* cStack, Scope* sc);
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static inline i32 maxi32(i32 a, i32 b) { return a>b?a:b; }
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Nvm_res m_nvm(Body* body) {
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ALLOC_ASM(64);
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#if ASM_TEST
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asm_test();
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#endif
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Reg r_CS = R_P0;
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Reg r_SC = R_P1;
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Reg r_ENV = R_P2;
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u64 pushAm = 0;
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PUSH(R_BP ); pushAm++; // idk, rbp; todo make gdb happy
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PUSH(r_ENV); pushAm++; // env pointer for quick bytecode pos updating
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PUSH(r_CS ); pushAm++; // starting gStack
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PUSH(r_SC ); pushAm++; // Scope* sc
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u64 lsz = 0; // local variable used up space
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#define ALLOCL(NAME,N) u64 NAME##Off = lsz; lsz+= (N)
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ALLOCL(pscs, (body->maxPSC)*8);
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while (((lsz+pushAm*8)&0xf) != 8) lsz++; // lazy way to make sure we're properly aligned
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SUBi(R_SP, lsz);
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MOV(r_CS, R_A0);
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MOV(r_SC, R_A1);
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MOV8rp(r_ENV, &envCurr);
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#define VAR(OFF,N) (OFF##Off + (N))
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#define VAR8(OFF,N) VAR(OFF,(N)*8)
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if (body->maxPSC) {
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MOV8mro(R_SP, R_A1, VAR(pscs,0));
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for (i32 i = 1; i < body->maxPSC; i++) {
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MOV8rmo(R_A1, R_A1, offsetof(Scope, psc));
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MOV8mro(R_SP, R_A1, VAR8(pscs,i));
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}
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}
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if ((u64)i_RETD > I32_MAX || (u64)&gStack > I32_MAX || (u64)&envEnd > I32_MAX) thrM("JIT: Refusing to run with CBQN code outside of the 32-bit address range");
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#define CCALL(F) { u64 f=(u64)(F); if(f>I32_MAX)thrM("JIT: Function address too large for call"); CALLi(f); }
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u32* origBC = body->bc;
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OptRes optRes = opt(origBC);
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Block** blocks = body->blocks->a;
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i32 depth = 0;
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u32* bc = optRes.bc;
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i32 lGPos = 0; // last updated gStack offset
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while (true) {
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u32* s = bc;
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u32* n = nextBC(bc);
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u32* off = origBC + optRes.offset[s-optRes.bc];
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bool ret = false;
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#define L64 ({ u64 r = bc[0] | ((u64)bc[1])<<32; bc+= 2; r; })
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// #define LEA0(O,I,OFF) { MOV(O,I); ADDI(O,OFF); }
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#define LEA0(O,I,OFF,Q) ({ i32 o=(OFF); if (Q||o) LEAi(O,I,o); o?O:I; })
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#define SPOSq(N) (maxi32(0, depth+(N)-1) * sizeof(B))
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#define SPOS(R,N,Q) LEA0(R, r_CS, SPOSq(N), Q) // load stack position N in register R; if Q==0, then might not write and instead return another register which will have the wanted value
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#define INV(N,D,F) SPOS(R_A##N, D, 1); CCALL(F)
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#define TOPp MOV(R_A0,R_RES)
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#define TOPs if (depth) { u8 t = SPOS(R_A3, 0, 0); MOV8mr(t, R_RES); }
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#define LSC(R,D) { if(D) MOV8rmo(R,R_SP,VAR8(pscs,D)); else MOV(R,r_SC); }
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#define INCV(R) INC4mo(R, offsetof(Value,refc)); // ADD4mi(R_A3, 1); CCALL(i_INC);
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#ifdef __BMI2__ // TODO move to runtime detection maybe
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#define INCB(R,T,U) IMM(T,0xfffffffffffffull);ADD(T,R);IMM(U,0x7fffffffffffeull);CMP(T,U);{JA(lI);MOVi1l(U,0x30);BZHI(U,R,U);INCV(U);LBL1(lI);}
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#else
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#define INCB(R,T,U) IMM(T,0xfffffffffffffull);ADD(T,R);IMM(U,0x7fffffffffffeull);CMP(T,U);{JA(lI);IMM(U,0xffffffffffffull);AND(U,R);INCV(U);LBL1(lI);}
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#endif
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#define POS_UPD(R1,R2) IMM(R1, off); MOV8mro(r_ENV, R1, offsetof(Env,bcL));
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#define GS_SET(R) MOV8pr(&gStack, R)
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#define GET(R,P,U) { i32 p = SPOSq(-(P)); if (U && lGPos!=p) { Reg t=LEA0(R,r_CS,p,0); GS_SET(t); lGPos=p; if(U!=2) MOV8rm(R,t); } else { MOV8rmo(R, r_CS, p); } }
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switch (*bc++) {
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case POPS: TOPp;
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CCALL(i_POPS);
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if (depth>1) { u8 t = SPOS(R_A3, -1, 0); MOV8rm(R_RES, t); }
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break;
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case ADDI: TOPs; { u64 x = L64; IMM(R_RES, x); IMM(R_A3, v(b(x))); INCV(R_A3); break; } // (u64 v, S)
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case ADDU: TOPs; IMM(R_RES, L64);
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break;
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case FN1C: TOPp; GET(R_A1,1,1); IMM(R_A2,off); CCALL(i_FN1C); break; // ( B f, B x, u32* bc)
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case FN1O: TOPp; GET(R_A1,1,1); IMM(R_A2,off); CCALL(i_FN1O); break; // ( B f, B x, u32* bc)
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case FN2C: TOPp; GET(R_A1,1,0); GET(R_A2,2,1); IMM(R_A3,off); CCALL(i_FN2C); break; // (B w, B f, B x, u32* bc)
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case FN2O: TOPp; GET(R_A1,1,0); GET(R_A2,2,1); IMM(R_A3,off); CCALL(i_FN2O); break; // (B w, B f, B x, u32* bc)
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case FN1Ci: { u64 fn = L64; POS_UPD(R_A0,R_A3); MOV(R_A1, R_RES); GET(R_A2,0,2); CCALL(fn); } break;
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case FN2Ci: { u64 fn = L64; POS_UPD(R_A0,R_A3); MOV(R_A1, R_RES); GET(R_A2,1,1); CCALL(fn); } break;
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case FN1Oi:TOPp; GET(R_A1,0,2); IMM(R_A1,L64); IMM(R_A2,off); CCALL(i_FN1Oi); break; // ( B x, BB2B fm, u32* bc)
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case FN2Oi:TOPp; GET(R_A1,1,1); IMM(R_A2,L64); IMM(R_A3, L64); IMM(R_A4,off); CCALL(i_FN2Oi); break; // (B w, B x, BB2B fm, BBB2B fd, u32* bc)
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case ARRM: case ARRO:;
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u32 sz = *bc++;
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if (sz) { TOPp; IMM(R_A1, sz); lGPos=SPOSq(1-sz); INV(2,0,i_ARR_p); } // (B, i64 sz, S)
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else { TOPs; CCALL(i_ARR_0); } // unused with optimizations
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break;
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case DFND: TOPs; // (u32* bc, Scope* sc, Block* bl)
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Block* bl = blocks[*bc++];
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u64 fn = (u64)(bl->ty==0? i_DFND_0 : bl->ty==1? i_DFND_1 : bl->ty==2? i_DFND_2 : NULL);
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if (fn==0) thrM("JIT: Bad DFND argument");
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GET(R_A3,-1,2);
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IMM(R_A0,off); MOV(R_A1,r_SC); IMM(R_A2,bl); CCALL(fn);
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break;
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case OP1D: TOPp; GET(R_A1,1,1); IMM(R_A2,off); CCALL(i_OP1D); break; // (B f,B m, u32* bc)
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case OP2D: TOPp; GET(R_A1,1,0); GET(R_A2,2,1); IMM(R_A3,off); CCALL(i_OP2D); break; // (B f,B m, B g, u32* bc)
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case OP2H: TOPp; GET(R_A1,1,0); CCALL(i_OP2H); break; // (B m, B g) // TODO these can actually error on OOM so should do something with bc/gStack
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case TR2D: TOPp; GET(R_A1,1,0); CCALL(i_TR2D); break; // (B g, B h)
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case TR3D: TOPp; GET(R_A1,1,0); GET(R_A2,2,0); CCALL(i_TR3D); break; // (B f,B g, B h)
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case TR3O: TOPp; GET(R_A1,1,0); GET(R_A2,2,0); CCALL(i_TR3O); break; // (B f,B g, B h)
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case LOCM: TOPs; { u64 d=*bc++; u64 p=*bc++; IMM(R_RES, tag((u64)d<<32 | (u32)p, VAR_TAG).u); } break;
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case EXTM: TOPs; { u64 d=*bc++; u64 p=*bc++; IMM(R_RES, tag((u64)d<<32 | (u32)p, EXT_TAG).u); } break;
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case LOCO: TOPs; { u64 d=*bc++; u64 p=*bc++; LSC(R_A1,d);
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MOV8rmo(R_RES,R_A1,p*8+offsetof(Scope,vars)); // read variable
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INCB(R_RES,R_A2,R_A3); // increment refcount if one's needed
|
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if (d) { IMM(R_A2, bi_noVar.u); CMP(R_A2,R_RES); JNE(lN); IMM(R_A0,off); INV(1,1,i_NOVAR); LBL1(lN); } // check for error
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} break;
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case EXTO: TOPs; { u64 d=*bc++; IMM(R_A0,*bc++); LSC(R_A1,d); IMM(R_A2,off); INV(3,1,i_EXTO); } break; // (u32 p, Scope* sc, u32* bc, S)
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case LOCU: TOPs; { u64 d=*bc++; IMM(R_A0,*bc++); LSC(R_A1,d); CCALL(i_LOCU); } break; // (u32 p, Scope* sc)
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case EXTU: TOPs; { u64 d=*bc++; IMM(R_A0,*bc++); LSC(R_A1,d); CCALL(i_EXTU); } break; // (u32 p, Scope* sc)
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case SETN: TOPp; GET(R_A1,1,1); LEAi(R_A2,R_SP,VAR(pscs,0)); IMM(R_A3,off); CCALL(i_SETN); break; // (B s, B x, Scope** pscs, u32* bc)
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case SETU: TOPp; GET(R_A1,1,1); LEAi(R_A2,R_SP,VAR(pscs,0)); IMM(R_A3,off); CCALL(i_SETU); break; // (B s, B x, Scope** pscs, u32* bc)
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case SETM: TOPp; GET(R_A1,1,1) GET(R_A2,2,1); LEAi(R_A3,R_SP,VAR(pscs,0)); IMM(R_A4,off); CCALL(i_SETM); break; // (B s, B f, B x, Scope** pscs, u32* bc)
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// TODO SETNi doesn't really need to update gStack
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case SETNi:TOPp; { u64 d=*bc++; u64 p=*bc++; GET(R_A1,0,2); LSC(R_A1,d); IMM(R_A2,p); IMM(R_A3,off); CCALL(i_SETNi); break; } // ( B x, Scope* sc, u32 p, u32* bc)
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case SETUi:TOPp; { u64 d=*bc++; u64 p=*bc++; GET(R_A1,0,2); LSC(R_A1,d); IMM(R_A2,p); IMM(R_A3,off); CCALL(i_SETUi); break; } // ( B x, Scope* sc, u32 p, u32* bc)
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case SETMi:TOPp; { u64 d=*bc++; u64 p=*bc++; GET(R_A1,1,1); LSC(R_A2,d); IMM(R_A3,p); IMM(R_A4,off); CCALL(i_SETMi); break; } // (B f, B x, Scope* sc, u32 p, u32* bc)
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case FLDO: TOPp; GET(R_A1,0,2); IMM(R_A1,*bc++); MOV(R_A2,r_SC); CCALL(i_FLDO); break; // (B, u32 p, Scope* sc)
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case NSPM: TOPp; IMM(R_A1,*bc++); CCALL(i_NSPM); break; // (B, u32 l)
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case CHKV: TOPp; IMM(R_A1,off); INV(2,0,i_CHKV); break; // (B, u32* bc, S)
|
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case RETD: GS_SET(r_CS); MOV(R_A0,r_SC); CCALL(i_RETD); ret=true; break; // (Scope* sc)
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case RETN: GS_SET(r_CS); ret=true; break;
|
|
default: thrF("JIT: Unsupported bytecode %i", *s);
|
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}
|
|
#undef GET
|
|
#undef GS_SET
|
|
#undef POS_UPD
|
|
#undef INCB
|
|
#undef INCV
|
|
#undef LSC
|
|
#undef TOPs
|
|
#undef TOPp
|
|
#undef INV
|
|
#undef SPOS
|
|
#undef L64
|
|
if (n!=bc) thrM("JIT: Wrong parsing of bytecode");
|
|
depth+= stackDiff(s);
|
|
if (ret) break;
|
|
}
|
|
freeOpt(optRes);
|
|
ADDi(R_SP, lsz);
|
|
POP(r_SC);
|
|
POP(r_CS);
|
|
POP(r_ENV);
|
|
POP(R_BP);
|
|
RET();
|
|
#undef CCALL
|
|
#undef VAR8
|
|
#undef VAR
|
|
#undef ALLOCL
|
|
GET_ASM();
|
|
u64 sz = ASM_SIZE;
|
|
u8* binEx = nvm_alloc(sz);
|
|
#if USE_PERF
|
|
if (!perf_map) {
|
|
B s = m_str32(U"/tmp/perf-"); AFMT("%l.map", getpid());
|
|
perf_map = file_open(s, "open", "wa");
|
|
print(s); printf(": map\n");
|
|
dec(s);
|
|
}
|
|
u32 bcPos = body->map[0];
|
|
// printf("JIT %d:\n", perfid);
|
|
// vm_printPos(body->comp, bcPos, -1);
|
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fprintf(perf_map, N64x" "N64x" JIT %d: BC@%u\n", (u64)binEx, sz, perfid++, bcPos);
|
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#endif
|
|
ASM_WRITE(binEx);
|
|
#if WRITE_ASM
|
|
write_asm(binEx, sz);
|
|
// exit(0);
|
|
#endif
|
|
FREE_ASM();
|
|
return (Nvm_res){.p = binEx, .refs = optRes.refs};
|
|
}
|
|
B evalJIT(Body* b, Scope* sc, u8* ptr) { // doesn't consume
|
|
pushEnv(sc, b->bc);
|
|
gsReserve(b->maxStack);
|
|
// B* sp = gStack;
|
|
B r = ((JITFn*)ptr)(gStack, sc);
|
|
// if (sp!=gStack) thrM("uh oh");
|
|
|
|
popEnv();
|
|
return r;
|
|
}
|