commit dd6d8db49acda5d5353a0a9c42485d9b4bde419d
author Roberto Ierusalimschy <roberto@inf.puc-rio.br> Fri Jul 12 16:47:02 2019 -0300
committer Roberto Ierusalimschy <roberto@inf.puc-rio.br> Fri Jul 12 16:47:02 2019 -0300
tree 04921fbdf39e4bbf60ba8827c2aa57b7a03f4233
parent 1fb4d539254b67e7e35ed698250c66d1edff0e08

Reordering of instructions in the main loop

The instructions in the main interpreter loop were reordered to
the same order of their enumeration in 'lopcodes.h'.

lvm.c

diff --git a/lvm.c b/lvm.c
index 4011819..ec65ea7 100644
--- a/lvm.c
+++ b/lvm.c
@@ -1097,11 +1097,6 @@
         setobjs2s(L, ra, RB(i));
         vmbreak;
       }
-      vmcase(OP_LOADK) {
-        TValue *rb = k + GETARG_Bx(i);
-        setobj2s(L, ra, rb);
-        vmbreak;
-      }
       vmcase(OP_LOADI) {
         lua_Integer b = GETARG_sBx(i);
         setivalue(s2v(ra), b);
@@ -1112,6 +1107,11 @@
         setfltvalue(s2v(ra), cast_num(b));
         vmbreak;
       }
+      vmcase(OP_LOADK) {
+        TValue *rb = k + GETARG_Bx(i);
+        setobj2s(L, ra, rb);
+        vmbreak;
+      }
       vmcase(OP_LOADKX) {
         TValue *rb;
         rb = k + GETARG_Ax(*pc); pc++;
@@ -1331,6 +1331,45 @@
         op_arithK(L, luaV_idiv, luai_numidiv, TM_IDIV, 0);
         vmbreak;
       }
+      vmcase(OP_BANDK) {
+        op_bitwiseK(L, l_band, TM_BAND);
+        vmbreak;
+      }
+      vmcase(OP_BORK) {
+        op_bitwiseK(L, l_bor, TM_BOR);
+        vmbreak;
+      }
+      vmcase(OP_BXORK) {
+        op_bitwiseK(L, l_bxor, TM_BXOR);
+        vmbreak;
+      }
+      vmcase(OP_SHRI) {
+        TValue *rb = vRB(i);
+        int ic = GETARG_sC(i);
+        lua_Integer ib;
+        if (tointegerns(rb, &ib)) {
+          setivalue(s2v(ra), luaV_shiftl(ib, -ic));
+        }
+        else {
+          TMS ev = TM_SHR;
+          if (TESTARG_k(i)) {
+            ic = -ic;  ev = TM_SHL;
+          }
+          Protect(luaT_trybiniTM(L, rb, ic, 0, ra, ev));
+        }
+        vmbreak;
+      }
+      vmcase(OP_SHLI) {
+        TValue *rb = vRB(i);
+        int ic = GETARG_sC(i);
+        lua_Integer ib;
+        if (tointegerns(rb, &ib)) {
+          setivalue(s2v(ra), luaV_shiftl(ic, ib));
+        }
+        else
+          Protect(luaT_trybiniTM(L, rb, ic, 1, ra, TM_SHL));
+        vmbreak;
+      }
       vmcase(OP_ADD) {
         op_arith(L, l_addi, luai_numadd, TM_ADD);
         vmbreak;
@@ -1359,18 +1398,6 @@
         op_arith(L, luaV_idiv, luai_numidiv, TM_IDIV);
         vmbreak;
       }
-      vmcase(OP_BANDK) {
-        op_bitwiseK(L, l_band, TM_BAND);
-        vmbreak;
-      }
-      vmcase(OP_BORK) {
-        op_bitwiseK(L, l_bor, TM_BOR);
-        vmbreak;
-      }
-      vmcase(OP_BXORK) {
-        op_bitwiseK(L, l_bxor, TM_BXOR);
-        vmbreak;
-      }
       vmcase(OP_BAND) {
         op_bitwise(L, l_band, TM_BAND);
         vmbreak;
@@ -1383,33 +1410,6 @@
         op_bitwise(L, l_bxor, TM_BXOR);
         vmbreak;
       }
-      vmcase(OP_SHRI) {
-        TValue *rb = vRB(i);
-        int ic = GETARG_sC(i);
-        lua_Integer ib;
-        if (tointegerns(rb, &ib)) {
-          setivalue(s2v(ra), luaV_shiftl(ib, -ic));
-        }
-        else {
-          TMS ev = TM_SHR;
-          if (TESTARG_k(i)) {
-            ic = -ic;  ev = TM_SHL;
-          }
-          Protect(luaT_trybiniTM(L, rb, ic, 0, ra, ev));
-        }
-        vmbreak;
-      }
-      vmcase(OP_SHLI) {
-        TValue *rb = vRB(i);
-        int ic = GETARG_sC(i);
-        lua_Integer ib;
-        if (tointegerns(rb, &ib)) {
-          setivalue(s2v(ra), luaV_shiftl(ic, ib));
-        }
-        else
-          Protect(luaT_trybiniTM(L, rb, ic, 1, ra, TM_SHL));
-        vmbreak;
-      }
       vmcase(OP_SHR) {
         TValue *rb = vRB(i);
         TValue *rc = vRC(i);