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25 #ifndef BRW_IR_ALLOCATOR_H
26 #define BRW_IR_ALLOCATOR_H
28 #include "main/macros.h"
32 * Simple allocator used to keep track of virtual GRFs.
34 class simple_allocator
{
37 sizes(NULL
), offsets(NULL
), count(0), total_size(0), capacity(0)
48 allocate(unsigned size
)
51 if (capacity
<= count
) {
52 capacity
= MAX2(16, capacity
* 2);
53 sizes
= (unsigned *)realloc(sizes
, capacity
* sizeof(unsigned));
54 offsets
= (unsigned *)realloc(offsets
, capacity
* sizeof(unsigned));
58 offsets
[count
] = total_size
;
65 * Array of sizes for each allocation. The allocation unit is up to the
66 * back-end, but it's expected to be one scalar value in the FS back-end
67 * and one vec4 in the VEC4 back-end.
72 * Array of offsets from the start of the VGRF space in allocation
77 /** Total number of VGRFs allocated. */
80 /** Cumulative size in allocation units. */