'tests/dag_test.cpp',
'tests/fast_idiv_by_const_test.cpp',
'tests/fast_urem_by_const_test.cpp',
+ 'tests/gc_alloc_tests.cpp',
'tests/half_float_test.cpp',
'tests/int_min_max.cpp',
'tests/mesa-sha1_test.cpp',
#define CANARY 0x5A1106
#if defined(__LP64__) || defined(_WIN64)
-#define HEADER_ALIGN alignas(16)
+#define HEADER_ALIGN 16
#else
-#define HEADER_ALIGN alignas(8)
+#define HEADER_ALIGN 8
#endif
/* Align the header's size so that ralloc() allocations will return with the
*/
struct ralloc_header
{
- HEADER_ALIGN
+ alignas(HEADER_ALIGN)
#ifndef NDEBUG
/* A canary value used to determine whether a pointer is ralloc'd. */
* allocated using a freelist backed by a simple linear allocator.
*/
typedef struct gc_slab {
- HEADER_ALIGN
+ alignas(HEADER_ALIGN)
gc_ctx *ctx;
*/
assert((align - alignof(gc_block_header)) <= 127);
+ /* We can only align as high as the slab is. */
+ assert(align <= HEADER_ALIGN);
+
size_t header_size = align64(sizeof(gc_block_header), align);
size = align64(size, align);
size += header_size;
struct linear_header {
- HEADER_ALIGN
+ alignas(HEADER_ALIGN)
#ifndef NDEBUG
unsigned magic; /* for debugging */
--- /dev/null
+/*
+ * Copyright © 2023 Valve Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ */
+
+#include <gtest/gtest.h>
+#include "util/ralloc.h"
+
+#if defined(__LP64__) || defined(_WIN64)
+#define HEADER_ALIGN 16
+#else
+#define HEADER_ALIGN 8
+#endif
+
+TEST(gc_alloc, align)
+{
+ for (size_t size = 4; size <= 256; size += 4) {
+ for (size_t align = 4; align <= HEADER_ALIGN; align *= 2) {
+ gc_ctx *ctx = gc_context(NULL);
+
+ for (unsigned i = 0; i < 16; i++) {
+ uintptr_t ptr = (uintptr_t)gc_alloc_size(ctx, size, align);
+ EXPECT_EQ(ptr % align, 0);
+ }
+
+ ralloc_free(ctx);
+ }
+ }
+}