Reorder various structs to reduce padding (thanks to /usr/bin/pahole).

src/lj_asm.c

@@ -60,9 +60,6 @@ typedef struct ASMState {
   SnapNo snapno;	/* Current snapshot number. */
   SnapNo loopsnapno;	/* Loop snapshot number. */
 
-  Trace *T;		/* Trace to assemble. */
-  Trace *parent;	/* Parent trace (or NULL). */
-
   IRRef fuseref;	/* Fusion limit (loopref, 0 or FUSE_DISABLED). */
   IRRef sectref;	/* Section base reference (loopref or 0). */
   IRRef loopref;	/* Reference of LOOP instruction (or 0). */
@@ -70,6 +67,9 @@ typedef struct ASMState {
   BCReg topslot;	/* Number of slots for stack check (unless 0). */
   MSize gcsteps;	/* Accumulated number of GC steps (per section). */
 
+  Trace *T;		/* Trace to assemble. */
+  Trace *parent;	/* Parent trace (or NULL). */
+
   MCode *mcbot;		/* Bottom of reserved MCode. */
   MCode *mctop;		/* Top of generated MCode. */
   MCode *mcloop;	/* Pointer to loop MCode (or NULL). */