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new auxiliary function 'luaK_isKint' + removal of 'luaK_needclose',

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which was not being used anywhere.
This commit is contained in:
Roberto Ierusalimschy 2017-12-18 13:44:44 -02:00
parent 7024f49c42
commit ab07005568
2 changed files with 12 additions and 18 deletions
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26
lcode.c
View File

@ -1,5 +1,5 @@
/*
** $Id: lcode.c,v 2.144 2017/12/14 14:24:02 roberto Exp roberto $
** $Id: lcode.c,v 2.145 2017/12/15 18:53:48 roberto Exp roberto $
** Code generator for Lua
** See Copyright Notice in lua.h
*/
@ -259,18 +259,6 @@ void luaK_patchtohere (FuncState *fs, int list) {
}
/*
** Check whether some jump in given list needs a close instruction.
*/
int luaK_needclose (FuncState *fs, int list) {
for (; list != NO_JUMP; list = getjump(fs, list)) {
if (GETARG_A(fs->f->code[list])) /* needs close? */
return 1;
}
return 0;
}
/*
** Correct a jump list to jump to 'target'. If 'hasclose' is true,
** 'target' contains an OP_CLOSE instruction (see first assert).
@ -1090,14 +1078,20 @@ static int isKstr (FuncState *fs, expdesc *e) {
ttisshrstring(&fs->f->k[e->u.info]));
}
/*
** Check whether expression 'e' is a literal integer.
*/
int luaK_isKint (expdesc *e) {
return (e->k == VKINT && !hasjumps(e));
}
/*
** Check whether expression 'e' is a literal integer in
** proper range to fit in register C
*/
static int isCint (expdesc *e) {
return (e->k == VKINT && !hasjumps(e) &&
l_castS2U(e->u.ival) <= l_castS2U(MAXARG_C));
return luaK_isKint(e) && (l_castS2U(e->u.ival) <= l_castS2U(MAXARG_C));
}
@ -1106,7 +1100,7 @@ static int isCint (expdesc *e) {
** proper range to fit in register sC
*/
static int isSCint (expdesc *e) {
return (e->k == VKINT && !hasjumps(e) && fitsC(e->u.ival));
return luaK_isKint(e) && fitsC(e->u.ival);
}

4
lcode.h
View File

@ -1,5 +1,5 @@
/*
** $Id: lcode.h,v 1.68 2017/10/04 21:56:32 roberto Exp roberto $
** $Id: lcode.h,v 1.69 2017/11/30 13:29:18 roberto Exp roberto $
** Code generator for Lua
** See Copyright Notice in lua.h
*/
@ -55,6 +55,7 @@ LUAI_FUNC int luaK_codeABx (FuncState *fs, OpCode o, int A, unsigned int Bx);
LUAI_FUNC int luaK_codeAsBx (FuncState *fs, OpCode o, int A, int Bx);
LUAI_FUNC int luaK_codeABCk (FuncState *fs, OpCode o, int A,
int B, int C, int k);
LUAI_FUNC int luaK_isKint (expdesc *e);
LUAI_FUNC void luaK_fixline (FuncState *fs, int line);
LUAI_FUNC void luaK_nil (FuncState *fs, int from, int n);
LUAI_FUNC void luaK_reserveregs (FuncState *fs, int n);
@ -80,7 +81,6 @@ LUAI_FUNC void luaK_patchlist (FuncState *fs, int list, int target);
void luaK_patchgoto (FuncState *fs, int list, int target, int hasclose);
LUAI_FUNC void luaK_patchtohere (FuncState *fs, int list);
LUAI_FUNC void luaK_patchclose (FuncState *fs, int list);
LUAI_FUNC int luaK_needclose (FuncState *fs, int list);
LUAI_FUNC void luaK_concat (FuncState *fs, int *l1, int l2);
LUAI_FUNC int luaK_getlabel (FuncState *fs);
LUAI_FUNC void luaK_prefix (FuncState *fs, UnOpr op, expdesc *v, int line);