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Implement gcc bitfield algorithm; add -mms-bitfields

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This commit is contained in:
David Mertens
2016-11-22 16:33:12 -05:00
parent 3c68a8c6c0
commit d2e2f42382
6 changed files with 44 additions and 7 deletions
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6
libtcc.c
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@ -752,6 +752,7 @@ LIBTCCAPI TCCState *tcc_new(void)
s->alacarte_link = 1;
s->nocommon = 1;
s->warn_implicit_function_declaration = 1;
s->ms_bitfields = 0;
#ifdef CHAR_IS_UNSIGNED
s->char_is_unsigned = 1;
@ -1508,6 +1509,7 @@ enum {
TCC_OPTION_Wl,
TCC_OPTION_W,
TCC_OPTION_O,
TCC_OPTION_mms_bitfields,
TCC_OPTION_m,
TCC_OPTION_f,
TCC_OPTION_isystem,
@ -1571,6 +1573,7 @@ static const TCCOption tcc_options[] = {
{ "Wl,", TCC_OPTION_Wl, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
{ "W", TCC_OPTION_W, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
{ "O", TCC_OPTION_O, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
{ "mms-bitfields", TCC_OPTION_mms_bitfields, 0}, /* must go before option 'm' */
{ "m", TCC_OPTION_m, TCC_OPTION_HAS_ARG },
{ "f", TCC_OPTION_f, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
{ "isystem", TCC_OPTION_isystem, TCC_OPTION_HAS_ARG },
@ -1854,6 +1857,9 @@ PUB_FUNC int tcc_parse_args(TCCState *s, int argc, char **argv)
if (x > 0)
tcc_define_symbol(s, "__OPTIMIZE__", NULL);
break;
case TCC_OPTION_mms_bitfields:
s->ms_bitfields = 1;
break;
case TCC_OPTION_traditional:
case TCC_OPTION_pedantic:
case TCC_OPTION_pipe: