From 38d57cdce42115fac4eb48bb441ac31f0fd81a7a Mon Sep 17 00:00:00 2001
From: Leo Tenenbaum <pommicket@gmail.com>
Date: Wed, 6 May 2020 13:22:03 -0400
Subject: system v amd64 calling convention

---
 foreign_msvc64.c | 138 -------------------------------------------------------
 1 file changed, 138 deletions(-)
 delete mode 100644 foreign_msvc64.c

(limited to 'foreign_msvc64.c')

diff --git a/foreign_msvc64.c b/foreign_msvc64.c
deleted file mode 100644
index b797c86..0000000
--- a/foreign_msvc64.c
+++ /dev/null
@@ -1,138 +0,0 @@
-/*
-  Copyright (C) 2019, 2020 Leo Tenenbaum.
-  This file is part of toc. toc is distributed under version 3 of the GNU General Public License, without any warranty whatsoever.
-  You should have received a copy of the GNU General Public License along with toc. If not, see <https://www.gnu.org/licenses/>.
-*/
-#if SIZE_MAX != U64_MAX
-#error "What's going on? The 64-bit Windows file was included, but size_t isn't 64 bits!"
-#endif
-
-extern U64 win64_call(FnPtr fn, U64 *args, I64 nargs);
-extern float win64_callf(FnPtr fn, U64 *args, I64 nargs);
-extern double win64_calld(FnPtr fn, U64 *args, I64 nargs);
-
-static Status val_to_word(Value v, Type *t, Location where, U64 *w) {
-	switch (t->kind) {
-	case TYPE_BUILTIN:
-		switch (t->builtin) {
-		case BUILTIN_I8: *w = (U64)v.i8; break;
-		case BUILTIN_I16: *w = (U64)v.i16; break;
-		case BUILTIN_I32: *w = (U64)v.i32; break;
-		case BUILTIN_U8: *w = (U64)v.u8; break;
-		case BUILTIN_U16: *w = (U64)v.u16; break;
-		case BUILTIN_U32: *w = (U64)v.u32; break;
-		case BUILTIN_I64: *w = (U64)v.i64; break;
-		case BUILTIN_U64: *w = v.u64; break;
-		case BUILTIN_F32: *w = (U64)*(U32 *)&v.f32; break;
-		case BUILTIN_F64: *w = *(U64 *)&v.f64; break;
-		case BUILTIN_CHAR: *w = (U64)v.charv; break;
-		case BUILTIN_BOOL: *w = (U64)v.boolv; break;
-		case BUILTIN_TYPE:
-		case BUILTIN_VARARGS:
-		case BUILTIN_NMS:
-		case BUILTIN_VOID:
-			goto unsupported;
-		}
-		break;
-	case TYPE_PTR:
-		*w = (U64)v.ptr; break;
-	default:
-	unsupported: {
-		/* @TODO(eventually) */
-		char *s = type_to_str(t);
-		err_print(where, "#foreign functions can't take arguments of type %s at compile time on Windows.", s);
-		free(s);
-		return false;
-	}
-	}
-	return true;
-}
-
-static Status foreign_call(ForeignFnManager *ffmgr, FnExpr *fn, Type *ret_type, Type *arg_types, size_t arg_types_stride, Value *args, size_t nargs, Location call_where, Value *ret) {
-	possibly_static_assert(sizeof(double) == 8);
-	possibly_static_assert(sizeof(float) == 4);
-	FnPtr fn_ptr = msvc_get_fn_ptr(ffmgr, fn, call_where);
-
-	U64 *words = err_malloc(nargs * sizeof *words);
-	U64 *word = words;
-	char *type = (char *)arg_types;
-	for (size_t i = 0; i < nargs; ++i) {
-		if (!val_to_word(args[i], (Type *)type, call_where, word))
-			return false;
-		type += arg_types_stride;
-		++word;
-	}
-	int kind = 0; /* 0=>integer, 1=>f32, 2=>f64 */
-	switch (ret_type->kind) {
-	case TYPE_BUILTIN:
-		switch (ret_type->builtin) {
-		case BUILTIN_I8: 
-		case BUILTIN_I16:
-		case BUILTIN_I32:
-		case BUILTIN_I64:
-		case BUILTIN_U8: 
-		case BUILTIN_U16:
-		case BUILTIN_U32:
-		case BUILTIN_U64:
-		case BUILTIN_BOOL:
-		case BUILTIN_CHAR:
-		case BUILTIN_VOID:
-			break;
-		case BUILTIN_F32:
-			kind = 1;
-			break;
-		case BUILTIN_F64:
-			kind = 2;
-			break;
-		default:
-			goto unsupported;
-		}
-		break;
-	case TYPE_PTR:
-		break;
-	default:
-	unsupported: {
-		char *s = type_to_str(ret_type);
-		/* @TODO(eventually) */
-		err_print(call_where, "You can't call functions which return type %s at compile time on Windows.", s);
-		free(s);
-		return false;
-	}
-	}
-	
-	switch (kind) {
-	case 0: {
-		U64 r = win64_call(fn_ptr, words, (I64)nargs);
-		switch (ret_type->kind) {
-		case TYPE_BUILTIN:
-			switch (ret_type->builtin) {
-			case BUILTIN_I8: ret->i8 = (I8)r; break;
-			case BUILTIN_I16: ret->i16 = (I16)r; break;
-			case BUILTIN_I32: ret->i32 = (I32)r; break;
-			case BUILTIN_I64: ret->i64 = (I64)r; break;
-			case BUILTIN_U8: ret->u8 = (U8)r; break;
-			case BUILTIN_U16: ret->u16 = (U16)r; break;
-			case BUILTIN_U32: ret->u32 = (U32)r; break;
-			case BUILTIN_U64: ret->u64 = (U64)r; break;
-			case BUILTIN_BOOL: ret->boolv = (bool)r; break;
-			case BUILTIN_CHAR: ret->charv = (char)r; break;
-			case BUILTIN_VOID: (void)r; break;
-			default: assert(0); break;
-			}
-			break;
-		case TYPE_PTR:
-			ret->ptr = (void *)r;
-			break;
-		default: assert(0); break;
-		}
-	} break;
-	case 1:
-		ret->f32 = win64_callf(fn_ptr, words, (I64)nargs);
-		break;
-	case 2:
-		ret->f64 = win64_calld(fn_ptr, words, (I64)nargs);
-		break;
-	}
-	free(words);
-	return true;
-}
-- 
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