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Change builtin make to runtime call at lowering time. 

Use kindNoPointers as 6g does.

	* Make-lang.in (go/expressions.o): Depend on $(GO_RUNTIME_H).

From-SVN: r175020
This commit is contained in:
Ian Lance Taylor 2011-06-14 13:51:16 +00:00
parent 6868b351c7
commit de38eefaa7
1 changed files with 57 additions and 0 deletions
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57
libgo/runtime/go-make-slice.c Normal file
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/* go-make-slice.c -- make a slice.
Copyright 2011 The Go Authors. All rights reserved.
Use of this source code is governed by a BSD-style
license that can be found in the LICENSE file. */
#include <stdint.h>
#include "go-alloc.h"
#include "go-assert.h"
#include "go-panic.h"
#include "go-type.h"
#include "array.h"
#include "runtime.h"
#include "malloc.h"
struct __go_open_array
__go_make_slice2 (const struct __go_type_descriptor *td, uintptr_t len,
uintptr_t cap)
{
const struct __go_slice_type* std;
int ilen;
int icap;
uintptr_t size;
struct __go_open_array ret;
unsigned int flag;
__go_assert (td->__code == GO_SLICE);
std = (const struct __go_slice_type *) td;
ilen = (int) len;
if (ilen < 0 || (uintptr_t) ilen != len)
__go_panic_msg ("makeslice: len out of range");
icap = (int) cap;
if (cap < len
|| (uintptr_t) icap != cap
|| cap > (uintptr_t) -1U / std->__element_type->__size)
__go_panic_msg ("makeslice: cap out of range");
ret.__count = ilen;
ret.__capacity = icap;
size = cap * std->__element_type->__size;
flag = ((std->__element_type->__code & GO_NO_POINTERS) != 0
? FlagNoPointers
: 0);
ret.__values = runtime_mallocgc (size, flag, 1, 1);
return ret;
}
struct __go_open_array
__go_make_slice1 (const struct __go_type_descriptor *td, uintptr_t len)
{
return __go_make_slice2 (td, len, len);
}