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jumps do not close upvalues (to be faster and simpler);

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explicit instruction to close upvalues; command 'break' not
handled like a 'goto' (to optimize removal of uneeded 'close'
instructions)
This commit is contained in:
Roberto Ierusalimschy
2017-09-13 16:50:08 -03:00
parent 029d269f4d
commit 80d9b09f35
6 changed files with 139 additions and 67 deletions
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6
lopcodes.c
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@@ -1,5 +1,5 @@
/*
** $Id: lopcodes.c,v 1.59 2017/06/29 15:38:41 roberto Exp roberto $
** $Id: lopcodes.c,v 1.60 2017/08/14 18:33:14 roberto Exp roberto $
** Opcodes for Lua virtual machine
** See Copyright Notice in lua.h
*/
@@ -54,6 +54,7 @@ LUAI_DDEF const char *const luaP_opnames[NUM_OPCODES+1] = {
"NOT",
"LEN",
"CONCAT",
"CLOSE",
"JMP",
"EQ",
"LT",
@@ -115,7 +116,8 @@ LUAI_DDEF const lu_byte luaP_opmodes[NUM_OPCODES] = {
,opmode(0, 1, OpArgR, OpArgN, iABC) /* OP_NOT */
,opmode(0, 1, OpArgR, OpArgN, iABC) /* OP_LEN */
,opmode(0, 1, OpArgR, OpArgR, iABC) /* OP_CONCAT */
,opmode(0, 0, OpArgR, OpArgN, iAsBx) /* OP_JMP */
,opmode(0, 0, OpArgN, OpArgN, iABC) /* OP_CLOSE */
,opmode(0, 0, OpArgU, OpArgN, iAsBx) /* OP_JMP */
,opmode(1, 0, OpArgK, OpArgK, iABC) /* OP_EQ */
,opmode(1, 0, OpArgK, OpArgK, iABC) /* OP_LT */
,opmode(1, 0, OpArgK, OpArgK, iABC) /* OP_LE */