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tccgen: factor out gfunc_return

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Also:
- on windows i386 and x86-64, structures of size <= 8 are
  NOT returned in registers if size is not one of 1,2,4,8.
- cleanup: put all tv-push/pop/swap/rot into one place
This commit is contained in:
grischka
2017-02-08 19:45:31 +01:00
parent f077d16c20
commit 68666eee2a
5 changed files with 199 additions and 212 deletions
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13
arm64-gen.c
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@ -1193,9 +1193,9 @@ ST_FUNC int gfunc_sret(CType *vt, int variadic, CType *ret,
return 0;
}
ST_FUNC void greturn(void)
ST_FUNC void gfunc_return(CType *func_type)
{
CType *t = &func_vt;
CType *t = func_type;
unsigned long a;
arm64_pcs(0, &t, &a);
@ -1203,8 +1203,8 @@ ST_FUNC void greturn(void)
case -1:
break;
case 0:
if ((func_vt.t & VT_BTYPE) == VT_STRUCT) {
int align, size = type_size(&func_vt, &align);
if ((func_type->t & VT_BTYPE) == VT_STRUCT) {
int align, size = type_size(func_type, &align);
gaddrof();
gv(RC_R(0));
arm64_ldrs(0, size);
@ -1213,7 +1213,7 @@ ST_FUNC void greturn(void)
gv(RC_IRET);
break;
case 1: {
CType type = func_vt;
CType type = *func_type;
mk_pointer(&type);
vset(&type, VT_LOCAL | VT_LVAL, func_vc);
indir();
@ -1222,7 +1222,7 @@ ST_FUNC void greturn(void)
break;
}
case 16:
if ((func_vt.t & VT_BTYPE) == VT_STRUCT) {
if ((func_type->t & VT_BTYPE) == VT_STRUCT) {
uint32_t j, sz, n = arm64_hfa(&vtop->type, &sz);
gaddrof();
gv(RC_R(0));
@ -1237,6 +1237,7 @@ ST_FUNC void greturn(void)
default:
assert(0);
}
vtop--;
}
ST_FUNC void gfunc_epilog(void)