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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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5
lopcodes.h
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@@ -1,5 +1,5 @@
/*
** $Id: lopcodes.h,v 1.155 2017/06/29 15:38:41 roberto Exp roberto $
** $Id: lopcodes.h,v 1.156 2017/08/14 18:33:14 roberto Exp roberto $
** Opcodes for Lua virtual machine
** See Copyright Notice in lua.h
*/
@@ -217,7 +217,8 @@ OP_LEN,/* A B R(A) := length of R(B) */
OP_CONCAT,/* A B C R(A) := R(B).. ... ..R(C) */
OP_JMP,/* A sBx pc+=sBx; if (A) close all upvalues >= R(A - 1) */
OP_CLOSE,/* A close all upvalues >= R(A) */
OP_JMP,/* sBx pc+=sBx */
OP_EQ,/* A B C if ((RK(B) == RK(C)) ~= A) then pc++ */
OP_LT,/* A B C if ((RK(B) < RK(C)) ~= A) then pc++ */
OP_LE,/* A B C if ((RK(B) <= RK(C)) ~= A) then pc++ */