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gen_putz () and struct_copy (), is to reduce the third-party call that

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generates faster code tcc
Now only for x86-64
parse_number also to reduce the reliance on third-party libraries, allowing
faster analysis tcc
This commit is contained in:
jiang 2014-05-02 09:42:33 +08:00
parent ee99fd45ab
commit 5b52a44b52
1 changed files with 30 additions and 23 deletions
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53
tccgen.c
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@ -2543,30 +2543,32 @@ ST_FUNC void vstore(void)
vtop -=2;
}else{
size = type_size(&vtop->type, &align);
#ifdef TCC_ARM_EABI
/* destination */
vswap();
vtop->type.t = VT_PTR;
gaddrof();
#ifndef TCC_TARGET_X86_64
/* destination */
vswap();
vtop->type.t = VT_PTR;
gaddrof();
/* address of memcpy() */
if(!(align & 7))
vpush_global_sym(&func_old_type, TOK_memcpy8);
else if(!(align & 3))
vpush_global_sym(&func_old_type, TOK_memcpy4);
else
vpush_global_sym(&func_old_type, TOK_memcpy);
/* address of memcpy() */
# ifdef TCC_ARM_EABI
if(!(align & 7))
vpush_global_sym(&func_old_type, TOK_memcpy8);
else if(!(align & 3))
vpush_global_sym(&func_old_type, TOK_memcpy4);
else
# endif
vpush_global_sym(&func_old_type, TOK_memcpy);
vswap();
/* source */
vpushv(vtop - 2);
vtop->type.t = VT_PTR;
gaddrof();
/* type size */
vpushi(size);
gfunc_call(3);
vswap();
/* source */
vpushv(vtop - 2);
vtop->type.t = VT_PTR;
gaddrof();
/* type size */
vpushi(size);
gfunc_call(3);
#else
/* destination */
/* destination */
vswap();
vtop->type.t = VT_PTR;
gaddrof();
@ -5239,14 +5241,19 @@ static void init_putz(CType *t, Section *sec, unsigned long c, int size)
if (sec) {
/* nothing to do because globals are already set to zero */
} else {
#ifdef TCC_TARGET_ARM
#ifndef TCC_TARGET_X86_64
vpush_global_sym(&func_old_type, TOK_memset);
vseti(VT_LOCAL, c);
#ifdef TCC_TARGET_ARM
vpushs(size);
vpushi(0);
#else
vpushi(0);
vpushs(size);
#endif
gfunc_call(3);
#else
vseti(VT_LOCAL, c);
vseti(VT_LOCAL, c);
gen_putz(vtop, size);
vtop--;
#endif