SETLIST A B C R(A)[(C-1)*FPF+i] := R(A+i), 1 <= i <= B If C is

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add test cases: issue41_gen_large_table.lua <div class="highlight highlight-so

SETLIST with c==0 about luadec HOT 2 CLOSED

viruscamp commented on July 21, 2024

SETLIST with c==0

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Comments (2)

viruscamp commented on July 21, 2024

case OP_SETLIST:
{
    if (c==0) {
        Instruction i_next_arg = code[++pc];
#if LUA_VERSION_NUM == 501
        c = i_next_arg;
#endif
#if LUA_VERSION_NUM == 502 || LUA_VERSION_NUM == 503
        if (GET_OPCODE(i_next_arg) == OP_EXTRAARG) {
            c = GETARG_Ax(i_next_arg);
        } else {
            SET_ERROR(F, "SETLIST with c==0, but not followed by EXTRAARG.");
        }
#endif
    }
    TRY(SetList(F, a, b, c));
    break;
}

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viruscamp commented on July 21, 2024

add test cases:
issue41_gen_large_table.lua

-- setlist c=0 when top>=25550
-- loadkx and extraarg when top>=2^18

print("local x={")

local top = arg[1] or 2^18
local count = 0
for i = 0, top do
    io.stdout:write(i,",")
    count = count + 1
    if count == 20 then
        io.stdout:write("\n")
        count = 0
    end
end
if count ~= 0 then
    io.stdout:write("\n")
end
print("}")

lua issue41_gen_large_table.lua 25550 > issue41_setlist0.lua
lua issue41_gen_large_table.lua 262142 > issue41_51_most_const.lua
lua issue41_gen_large_table.lua 262144 > issue41_loadkx.lua

lua issue41_gen_large_table.lua 262143 lua51 cannot process but lua52 53 gen without loadkx

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