Optimization/simplification of 'getbaseline'

By producing absolute line information at regular intervals, a simple
division can compute the correct entry for a given instruction.

1 files changed, 2 insertions, 2 deletions

diff --git a/lcode.c b/lcode.c
index 9741d7cd..31f23f47 100644
--- a/lcode.c
+++ b/lcode.c
@@ -328,13 +328,13 @@ void luaK_patchtohere (FuncState *fs, int list) {
 static void savelineinfo (FuncState *fs, Proto *f, int line) {
   int linedif = line - fs->previousline;
   int pc = fs->pc - 1;  /* last instruction coded */
-  if (abs(linedif) >= LIMLINEDIFF || fs->iwthabs++ > MAXIWTHABS) {
+  if (abs(linedif) >= LIMLINEDIFF || fs->iwthabs++ >= MAXIWTHABS) {
     luaM_growvector(fs->ls->L, f->abslineinfo, fs->nabslineinfo,
                     f->sizeabslineinfo, AbsLineInfo, MAX_INT, "lines");
     f->abslineinfo[fs->nabslineinfo].pc = pc;
     f->abslineinfo[fs->nabslineinfo++].line = line;
     linedif = ABSLINEINFO;  /* signal that there is absolute information */
-    fs->iwthabs = 0;  /* restart counter */
+    fs->iwthabs = 1;  /* restart counter */
   }
   luaM_growvector(fs->ls->L, f->lineinfo, pc, f->sizelineinfo, ls_byte,
                   MAX_INT, "opcodes");