Accept option "-Os" and define "__OPTIMIZE_SIZE__"

Some headers and source code change macros and implementation, when __OPTIMIZE_SIZE__ is defined. This does not change our generated code.

Detlef Riekenberg committed 4 years ago

Commit 3ce7bc61 parent b3bebdb2 files · +7 −1Browse files

Unified · Split

2 files

@@ -1997,7 +1997,11 @@ reparse: · 1996 unmodified lines
1997	1997	s->filetype = x \| (s->filetype & ~AFF_TYPE_MASK);
1998	1998	break;
1999	1999	case TCC_OPTION_O:
2000		− s->optimize = atoi(optarg);
	2000	+ /* Use "-O" as alias for "-O1". */
	2001	+ /* Other common used values: "-O0", "-O1", "-O2", "-O3" and "-Os" */
	2002	+ /* no failure with unsupported options */
	2003	+ x = *optarg;
	2004	+ s->optimize = isnum(x) ? atoi(optarg) : (x) ? x : 1;
2001	2005	break;
2002	2006	case TCC_OPTION_print_search_dirs:
2003	2007	x = OPT_PRINT_DIRS;

@@ -3733,6 +3733,8 @@ static void tcc_predefs(TCCState s1, CString cs, int is_asm) · 3732 unmodified lines
3733	3733	putdef(cs, "__CHAR_UNSIGNED__");
3734	3734	if (s1->optimize > 0)
3735	3735	putdef(cs, "__OPTIMIZE__");
	3736	+ if (s1->optimize == 's')
	3737	+ putdef(cs, "__OPTIMIZE_SIZE__");
3736	3738	if (s1->option_pthread)
3737	3739	putdef(cs, "_REENTRANT");
3738	3740	if (s1->leading_underscore)

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