#pragma once
// GGML internal header
#include "ggml.h"
#include "gguf.h"
#include <assert.h>
#include <math.h>
#include <stdlib.h> // load `stdlib.h` before other headers to work around MinGW bug: https://sourceforge.net/p/mingw-w64/bugs/192/
#include <stdbool.h>
#include <stdint.h>
#include <string.h>
#ifdef __ARM_FEATURE_SVE
#include <arm_sve.h>
#endif // __ARM_FEATURE_SVE
#if defined(__ARM_NEON) && !defined(__CUDACC__) && !defined(__MUSACC__)
// if YCM cannot find <arm_neon.h>, make a symbolic link to it, for example:
//
// $ ln -sfn /Library/Developer/CommandLineTools/usr/lib/clang/13.1.6/include/arm_neon.h ./src/
//
#include <arm_neon.h>
#endif
#ifdef __cplusplus
extern "C" {
#endif
void ggml_print_backtrace(void);
uint64_t ggml_graph_next_uid(void);
#ifndef MIN
# define MIN(a, b) ((a) < (b) ? (a) : (b))
#endif
#ifndef MAX
# define MAX(a, b) ((a) > (b) ? (a) : (b))
#endif
// required for mmap as gguf only guarantees 32-byte alignment
#define TENSOR_ALIGNMENT 32
// static_assert should be a #define, but if it's not,
// fall back to the _Static_assert C11 keyword.
// if C99 - static_assert is noop
// ref: https://stackoverflow.com/a/53923785/4039976
#ifndef __cplusplus
#ifndef static_assert
#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 201100L)
#define static_assert(cond, msg) _Static_assert(cond, msg)
#else
#define static_assert(cond, msg) struct global_scope_noop_trick
#endif
#endif
#endif
static inline int ggml_up32(int n) {
return (n + 31) & ~31;
}
//static inline int ggml_up64(int n) {
// return (n + 63) & ~63;
//}
static inline int ggml_up(int n, int m) {
// assert m is a power of 2
GGML_ASSERT((m & (m - 1)) == 0);
return (n + m - 1) & ~(m - 1);
}
// TODO: move to ggml.h? (won't be able to inline)
static bool ggml_are_same_layout(const struct ggml_tensor * a, const struct ggml_tensor * b) {
if (a->type != b->type) {
return false;
}
for (int i = 0; i < GGML_MAX_DIMS; i++) {
if (a->ne[i] != b->ne[i]) {
return false;
}
if (a->nb[i] != b->nb[i]) {
return false;
}
}
return true;
}
static bool ggml_op_is_empty(enum ggml_op op) {
switch (op) {
case GGML_OP_NONE:
case GGML_OP_RESHAPE:
case GGML_OP_TRANSPOSE:
case GGML_OP_VIEW:
case GGML_OP_PERMUTE:
return true;
default:
return false;
}
}
static inline bool ggml_impl_is_view(const struct ggml_tensor * t) {
return t->view_src != NULL;
}
static inline float ggml_compute_softplus_f32(float input) {
return (input > 20.0f) ? input : logf(1 + expf(input));
}
//
// logging
//
GGML_ATTRIBUTE_FORMAT(2, 3)
GGML_API void ggml_log_internal (enum ggml_log_level level, const char * format, ...);
GGML_API void ggml_log_callback_default(enum ggml_log_level level, const char * text, void * user_data);
#define GGML_LOG(...) ggml_log_internal(GGML_LOG_LEVEL_NONE , __VA_ARGS__)
#define GGML_LOG_INFO(...) ggml_log_internal(GGML_LOG_LEVEL_INFO , __VA_ARGS__)
#define GGML_LOG_WARN(...) ggml_log_internal(GGML_LOG_LEVEL_WARN , __VA_ARGS__)
#define GGML_LOG_ERROR(...) ggml_log_internal(GGML_LOG_LEVEL_ERROR, __VA_ARGS__)
#define GGML_LOG_DEBUG(...) ggml_log_internal(GGML_LOG_LEVEL_DEBUG, __VA_ARGS__)
#define GGML_LOG_CONT(...) ggml_log_internal(GGML_LOG_LEVEL_CONT , __VA_ARGS__)
#define GGML_DEBUG 0
#if (GGML_DEBUG >= 1)
#define GGML_PRINT_DEBUG(...) GGML_LOG_DEBUG(__VA_ARGS__)
#else
#define GGML_PRINT_DEBUG(...)
#endif
#if (GGML_DEBUG >= 5)
#define GGML_PRINT_DEBUG_5(...) GGML_LOG_DEBUG(__VA_ARGS__)
#else
#define GGML_PRINT_DEBUG_5(...)
#endif
#if (GGML_DEBUG >= 10)
#define GGML_PRINT_DEBUG_10(...) GGML_LOG_DEBUG(__VA_ARGS__)
#else
#define GGML_PRINT_DEBUG_10(...)
#endif
// tensor params
static void ggml_set_op_params(struct ggml_tensor * tensor, const void * params, size_t params_size) {
GGML_ASSERT(tensor != NULL); // silence -Warray-bounds warnings
assert(params_size <= GGML_MAX_OP_PARAMS);
memcpy(tensor->op_params, params, params_size);
}
static int32_t ggml_get_op_params_i32(const struct ggml_tensor * tensor, uint32_t i) {
assert(i < GGML_MAX_OP_PARAMS / sizeof(int32_t));
return ((const int32_t *)(tensor->op_params))[i];
}
static float ggml_get_op_params_f32(const struct ggml_tensor * tensor, uint32_t i) {
assert(i < GGML_MAX_OP_PARAMS / sizeof(float));
return ((const float *)(tensor->op_params))[i];
}
static void ggml_set_op_params_i32(struct ggml_tensor * tensor, uint32_t i, int32_t value) {
assert(i < GGML_MAX_OP_PARAMS / sizeof(int32_t));
((int32_t *)(tensor->op_params))[i] = value;
}
static void ggml_set_op_params_f32(struct ggml_tensor * tensor, uint32_t i, float value) {
assert(i < GGML_MAX_OP_PARAMS / sizeof(float));
((float *)(tensor->op_params))[i] = value;
}
struct ggml_map_custom1_op_params {
ggml_custom1_op_t fun;
int n_tasks;
void * userdata;
};
struct ggml_map_custom2_op_params {
ggml_custom2_op_t fun;
int n_tasks;
void * userdata;
};
struct ggml_map_custom3_op_params {
ggml_custom3_op_t fun;
int n_tasks;
void * userdata;
};
struct ggml_custom_op_params {
ggml_custom_op_t fun;
int n_tasks;
void * userdata;
};
// bitset
typedef uint32_t ggml_bitset_t;
static_assert(sizeof(ggml_bitset_t) == 4, "bitset_t constants must be updated");
#define BITSET_SHR 5 // log2(sizeof(ggml_bitset_t)*8)
#define BITSET_MASK (sizeof(ggml_bitset_t)*8 - 1)
static size_t ggml_bitset_size(size_t n) {
return (n + BITSET_MASK) >> BITSET_SHR;
}
static inline bool ggml_bitset_get(const ggml_bitset_t * bitset, size_t i) {
return !!(bitset[i >> BITSET_SHR] & (1u << (i & BITSET_MASK)));
}
static inline void ggml_bitset_set(ggml_bitset_t * bitset, size_t i) {
bitset[i >> BITSET_SHR] |= (1u << (i & BITSET_MASK));
}
static inline void ggml_bitset_clear(ggml_bitset_t * bitset, size_t i) {
bitset[i >> BITSET_SHR] &= ~(1u << (i & BITSET_MASK));
}
// hash set
#define GGML_HASHSET_FULL ((size_t)-1)
#define GGML_HASHSET_ALREADY_EXISTS ((size_t)-2)
struct ggml_hash_set {
size_t size;
ggml_bitset_t * used; // whether or not the keys are in use i.e. set
struct ggml_tensor ** keys; // actual tensors in the set, keys[i] is only defined if ggml_bitset_get(used, i)
};
struct ggml_hash_set ggml_hash_set_new(size_t size);
void ggml_hash_set_free(struct ggml_hash_set * hash_set);
// returns the minimum size for a hash set that can hold min_sz elements
size_t ggml_hash_size(size_t min_sz);
// remove all elements from the hash set
void ggml_hash_set_reset(struct ggml_hash_set * hash_set);
// returns true if key is in the hash set
static bool ggml_hash_contains(const struct ggml_hash_set * hash_set, struct ggml_tensor * key);
// returns GGML_HASHSET_FULL if table is full, otherwise the current index of the key or where it should be inserted
static size_t ggml_hash_find(const struct ggml_hash_set * hash_set, const struct ggml_tensor * key);
// returns GGML_HASHSET_ALREADY_EXISTS if key already exists, index otherwise, asserts if table is full
static size_t ggml_hash_insert(struct ggml_hash_set * hash_set, struct ggml_tensor * key);
// return index, asserts if table is full
static size_t ggml_hash_find_or_insert(struct ggml_hash_set * hash_set, struct ggml_tensor * key);
// hash function for ggml_tensor
static inline size_t ggml_hash(const struct ggml_tensor * p) {
// the last 4 bits are always zero due to alignment
return (size_t)(uintptr_t)p >> 4;
}
static size_t ggml_hash_find(const struct ggml_hash_set * hash_set, const struct ggml_tensor * key) {
size_t h = ggml_hash(key) % hash_set->size;
// linear probing
size_t i = h;
while (ggml_bitset_get(hash_set->used, i) && hash_set->keys[i] != key) {
i = (i + 1) % hash_set->size;
if (i == h) {
// visited all hash table entries -> not found
return GGML_HASHSET_FULL;
}
}
return i;
}
static bool ggml_hash_contains(const struct ggml_hash_set * hash_set, struct ggml_tensor * key) {
size_t i = ggml_hash_find(hash_set, key);
return i != GGML_HASHSET_FULL && ggml_bitset_get(hash_set->used, i);
}
static size_t ggml_hash_insert(struct ggml_hash_set * hash_set, struct ggml_tensor * key) {
size_t h = ggml_hash(key) % hash_set->size;
// linear probing
size_t i = h;
do {
if (!ggml_bitset_get(hash_set->used, i)) {
ggml_bitset_set(hash_set->used, i);
hash_set->keys[i] = key;
return i;
}
if (hash_set->keys[i] == key) {
return GGML_HASHSET_ALREADY_EXISTS;
}
i = (i + 1) % hash_set->size;
} while (i != h);
// visited all hash table entries -> not found
GGML_ABORT("fatal error");
}
static size_t ggml_hash_find_or_insert(struct ggml_hash_set * hash_set, struct ggml_tensor * key) {
size_t h = ggml_hash(key) % hash_set->size;
// linear probing
size_t i = h;
do {
if (!ggml_bitset_get(hash_set->used, i)) {
ggml_bitset_set(hash_set->used, i);
hash_set->keys[i] = key;
return i;
}
if (hash_set->keys[i] == key) {
return i;
}
i = (i + 1) % hash_set->size;
} while (i != h);
// visited all hash table entries -> not found
GGML_ABORT("fatal error");
}
// computation graph
enum ggml_cgraph_eval_order {
GGML_CGRAPH_EVAL_ORDER_LEFT_TO_RIGHT = 0,
GGML_CGRAPH_EVAL_ORDER_RIGHT_TO_LEFT,
GGML_CGRAPH_EVAL_ORDER_COUNT
};
struct ggml_cgraph {
int size; // maximum number of nodes/leafs/grads/grad_accs
int n_nodes; // number of nodes currently in use
int n_leafs; // number of leafs currently in use
struct ggml_tensor ** nodes; // tensors with data that can change if the graph is evaluated
struct ggml_tensor ** grads; // the outputs of these tensors are the gradients of the nodes
struct ggml_tensor ** grad_accs; // accumulators for node gradients
struct ggml_tensor ** leafs; // tensors with constant data
int32_t * use_counts;// number of uses of each tensor, indexed by hash table slot
struct ggml_hash_set visited_hash_set;
enum ggml_cgraph_eval_order order;
// an optional identifier that can be utilized to recognize same graphs if two non-zero values match
// a value of 0 means it is not set and should be ignored
uint64_t uid;
};
// returns a slice of cgraph with nodes [i0, i1)
// the slice does not have leafs or gradients
// if you need the gradients, get them from the original graph
struct ggml_cgraph ggml_graph_view(struct ggml_cgraph * cgraph, int i0, int i1);
// ggml-alloc.c: true if the operation can reuse memory from its sources
GGML_API bool ggml_op_can_inplace(enum ggml_op op);
// Memory allocation
GGML_API void * ggml_aligned_malloc(size_t size);
GGML_API void ggml_aligned_free(void * ptr, size_t size);
// FP16 <-> FP32
// ref: https://github.com/Maratyszcza/FP16
static inline float fp32_from_bits(uint32_t w) {
union {
uint32_t as_bits;
float as_value;
} fp32;
fp32.as_bits = w;
return fp32.as_value;
}
static inline uint32_t fp32_to_bits(float f) {
union {
float as_value;
uint32_t as_bits;
} fp32;
fp32.as_value = f;
return fp32.as_bits;
}
static inline float ggml_compute_fp16_to_fp32(ggml_fp16_t h) {
const uint32_t w = (uint32_t) h << 16;
const uint32_t sign = w & UINT32_C(0x80000000);
const uint32_t two_w = w + w;
const uint32_t exp_offset = UINT32_C(0xE0) << 23;
#if (defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) || defined(__GNUC__) && !defined(__STRICT_ANSI__)) && (!defined(__cplusplus) || __cplusplus >= 201703L)
const float exp_scale = 0x1.0p-112f;
#else
const float exp_scale = fp32_from_bits(UINT32_C(0x7800000));
#endif
const float normalized_value = fp32_from_bits((two_w >> 4) + exp_offset) * exp_scale;
const uint32_t magic_mask = UINT32_C(126) << 23;
const float magic_bias = 0.5f;
const float denormalized_value = fp32_from_bits((two_w >> 17) | magic_mask) - magic_bias;
const uint32_t denormalized_cutoff = UINT32_C(1) << 27;
const uint32_t result = sign |
(two_w < denormalized_cutoff ? fp32_to_bits(denormalized_value) : fp32_to_bits(normalized_value));
return fp32_from_bits(result);
}
static inline ggml_fp16_t ggml_compute_fp32_to_fp16(float f) {
#if (defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) || defined(__GNUC__) && !defined(__STRICT_ANSI__)) && (!defined(__cplusplus) || __cplusplus >= 201703L)
const float scale_to_inf = 0x1.0p+112f;
const float scale_to_zero = 0x1.0p-110f;
#else
const float scale_to_inf = fp32_from_bits(UINT32_C(0x77800000));
const float scale_to_zero = fp32_from_bits(UINT32_C(0x08800000));
#endif
float base = (fabsf(f) * scale_to_inf) * scale_to_zero;
const uint32_t w = fp32_to_bits(f);
const uint32_t shl1_w = w + w;
const uint32_t sign = w & UINT32_C(0x80000000);
uint32_t bias = shl1_w & UINT32_C(0xFF000000);
if (bias < UINT32_C(0x71000000)) {
bias = UINT32_C(0x71000000);
}
base = fp32_from_bits((bias >> 1) + UINT32_C(0x07800000)) + base;
const uint32_t bits = fp32_to_bits(base);
const uint32_t exp_bits = (bits >> 13) & UINT32_C(0x00007C00);
const uint32_t mantissa_bits = bits & UINT32_C(0x00000FFF);
const uint32_t nonsign = exp_bits + mantissa_bits;
return (sign >> 16) | (shl1_w > UINT32_C(0xFF000000) ? UINT16_C(0x7E00) : nonsign);
}
#define GGML_COMPUTE_FP16_TO_FP32(x) ggml_compute_fp16_to_fp32(x)
#define GGML_COMPUTE_FP32_TO_FP16(x) ggml_compute_fp32_to_fp16(x)
#define GGML_FP16_TO_FP32(x) GGML_COMPUTE_FP16_TO_FP32(x)
#define GGML_FP32_TO_FP16(x) GGML_COMPUTE_FP32_TO_FP16(x)
static inline float ggml_e8m0_to_fp32(uint8_t x) {
uint32_t bits; // Stores the raw bit representation of the float
// Handle special case for minimum exponent (denormalized float)
if (x == 0) {
// Bit pattern for 2^(-127):
// - Sign bit: 0 (positive)
// - Exponent: 0 (denormalized number)
// - Mantissa: 0x400000 (0.5 in fractional form)
// Value = 0.5 * 2^(-126) = 2^(-127)
bits = 0x00400000;
}
// note: disabled as we don't need to handle NaNs
//// Handle special case for NaN (all bits set)
//else if (x == 0xFF) {
// // Standard quiet NaN pattern:
// // - Sign bit: 0
// // - Exponent: all 1s (0xFF)
// // - Mantissa: 0x400000 (quiet NaN flag)
// bits = 0x7FC00000;
//}
// Normalized values (most common case)
else {
// Construct normalized float by shifting exponent into position:
// - Exponent field: 8 bits (positions 30-23)
// - Mantissa: 0 (implicit leading 1)
// Value = 2^(x - 127)
bits = (uint32_t) x << 23;
}
float result; // Final float value
// Safely reinterpret bit pattern as float without type-punning issues
memcpy(&result, &bits, sizeof(float));
return result;
}
// Equal to ggml_e8m0_to_fp32/2
// Useful with MXFP4 quantization since the E0M2 values are doubled
static inline float ggml_e8m0_to_fp32_half(uint8_t x) {
uint32_t bits;
// For x < 2: use precomputed denormal patterns
if (x < 2) {
// 0x00200000 = 2^(-128), 0x00400000 = 2^(-127)
bits = 0x00200000 << x;
}
// For x >= 2: normalized exponent adjustment
else {
// 0.5 * 2^(x-127) = 2^(x-128) = normalized with exponent (x-1)
bits = (uint32_t)(x - 1) << 23;
}
// Note: NaNs are not handled here
float result;
memcpy(&result, &bits, sizeof(float));
return result;
}
#define GGML_E8M0_TO_FP32(x) ggml_e8m0_to_fp32(x)
#define GGML_E8M0_TO_FP32_HALF(x) ggml_e8m0_to_fp32_half(x)
// UE4M3: unsigned, 4 exp bits (bias=7), 3 mantissa bits
// Returns value * 0.5 to match kvalues_mxfp4 convention (kvalues = 2 * E2M1_float)
static inline float ggml_ue4m3_to_fp32(uint8_t x) {
if (x == 0 || x == 0x7F) {
return 0.0f;
}
int exp = (x >> 3) & 0xF;
int man = x & 0x7;
float raw;
if (exp == 0) {
raw = ldexpf((float) man, -9);
} else {
raw = ldexpf(1.0f + (float) man / 8.0f, exp - 7);
}
return raw * 0.5f;
}
static inline uint8_t ggml_fp32_to_ue4m3(float x) {
if (!(x > 0.0f)) {
return 0;
}
if (x > 448.0f) {
x = 448.0f;
}
uint32_t bits;
memcpy(&bits, &x, 4);
int fp32_exp = ((bits >> 23) & 0xFF) - 127;
int fp32_man = (bits >> 20) & 0x7;
int ue4m3_exp = fp32_exp + 7;
if (ue4m3_exp <= 0) {
// subnormal: value = man * 2^-9, man = round(x * 2^9)
int man = (int) (x * 512.0f + 0.5f);
if (man > 7) {
man = 7;
}
if (man < 1) {
return 0;
}
return (uint8_t) man;
}
if (ue4m3_exp >= 15) {
return 0x7E;
}
int round_bit = (bits >> 19) & 1;
int ue4m3_man = fp32_man + round_bit;
if (ue4m3_man > 7) {
ue4m3_man = 0;
ue4m3_exp++;
if (ue4m3_exp >= 15) {
return 0x7E;
}
}
return (uint8_t) ((ue4m3_exp << 3) | ue4m3_man);
}
/**
* Converts brain16 to float32.
*
* The bfloat16 floating point format has the following structure:
*
* ┌sign
* │
* │ ┌exponent
* │ │
* │ │ ┌mantissa
* │ │ │
* │┌──┴───┐┌─┴───┐
* 0b0000000000000000 brain16
*
* Since bf16 has the same number of exponent bits as a 32bit float,
* encoding and decoding numbers becomes relatively straightforward.
*
* ┌sign
* │
* │ ┌exponent
* │ │
* │ │ ┌mantissa
* │ │ │
* │┌──┴───┐┌─┴───────────────────┐
* 0b00000000000000000000000000000000 IEEE binary32
*
* For comparison, the standard fp16 format has fewer exponent bits.
*
* ┌sign
* │
* │ ┌exponent
* │ │
* │ │ ┌mantissa
* │ │ │
* │┌─┴─┐┌─┴──────┐
* 0b0000000000000000 IEEE binary16
*
* @see IEEE 754-2008
*/
static inline float ggml_compute_bf16_to_fp32(ggml_bf16_t h) {
union {
float f;
uint32_t i;
} u;
u.i = (uint32_t)h.bits << 16;
return u.f;
}
/**
* Converts float32 to brain16.
*
* This is binary identical with Google Brain float conversion.
* Floats shall round to nearest even, and NANs shall be quiet.
* Subnormals aren't flushed to zero, except perhaps when used.
* This code should vectorize nicely if using modern compilers.
*/
static inline ggml_bf16_t ggml_compute_fp32_to_bf16(float s) {
ggml_bf16_t h;
union {
float f;
uint32_t i;
} u;
u.f = s;
if ((u.i & 0x7fffffff) > 0x7f800000) { /* nan */
h.bits = (u.i >> 16) | 64; /* force to quiet */
return h;
}
h.bits = (u.i + (0x7fff + ((u.i >> 16) & 1))) >> 16;
return h;
}
#define GGML_FP32_TO_BF16(x) ggml_compute_fp32_to_bf16(x)
#define GGML_BF16_TO_FP32(x) ggml_compute_bf16_to_fp32(x)
static inline int32_t ggml_node_get_use_count(const struct ggml_cgraph * cgraph, int node_idx) {
const struct ggml_tensor * node = cgraph->nodes[node_idx];
size_t hash_pos = ggml_hash_find(&cgraph->visited_hash_set, node);
if (!ggml_bitset_get(cgraph->visited_hash_set.used, hash_pos)) {
return 0;
}
return cgraph->use_counts[hash_pos];
}
// return true if the node's results are only used by N other nodes
// and can be fused into their calculations.
static inline bool ggml_node_has_n_uses(const struct ggml_cgraph * cgraph, int node_idx, int32_t n_uses) {
const struct ggml_tensor * node = cgraph->nodes[node_idx];
// check the use count against how many we're replacing
if (ggml_node_get_use_count(cgraph, node_idx) != n_uses) {
return false;
}
// if node is a view, some other node might be using the intermediate result
// via the view source.
if (node->view_src) {
return false;
}
// If the user requested output for the node, can't fuse
if (node->flags & GGML_TENSOR_FLAG_OUTPUT) {
return false;
}
return true;
}
// Returns true if nodes with indices { node_idxs } are the sequence of ggml_ops in ops[]
// and are fusable. Nodes are considered fusable according to this function if:
// - all nodes except the last have only one use and are not views/outputs (see ggml_node_has_N_uses).
// - all nodes except the last are a src of the following node.
// - all nodes are the same shape.
// TODO: Consider allowing GGML_OP_NONE nodes in between
static inline bool ggml_can_fuse_ext(const struct ggml_cgraph * cgraph, const int * node_idxs, const enum ggml_op * ops, int num_ops) {
for (int i = 0; i < num_ops; ++i) {
if (node_idxs[i] >= cgraph->n_nodes) {
return false;
}
struct ggml_tensor * node = cgraph->nodes[node_idxs[i]];
if (node->op != ops[i]) {
return false;
}
if ((node->flags & GGML_TENSOR_FLAG_COMPUTE) == 0) {
return false;
}
if (i < num_ops - 1 && !ggml_node_has_n_uses(cgraph, node_idxs[i], 1)) {
return false;
}
if (i > 0) {
struct ggml_tensor * prev = cgraph->nodes[node_idxs[i - 1]];
if (node->src[0] != prev && node->src[1] != prev) {
return false;
}
if (!ggml_are_same_shape(node, prev)) {
return false;
}
}
}
return true;
}
// same as above, for sequential indices starting at node_idx
static inline bool ggml_can_fuse(const struct ggml_cgraph * cgraph, int node_idx, const enum ggml_op * ops, int num_ops) {
assert(num_ops < 32);
if (node_idx + num_ops > cgraph->n_nodes) {
return false;
}
int idxs[32];
for (int i = 0; i < num_ops; ++i) {
idxs[i] = node_idx + i;
}
return ggml_can_fuse_ext(cgraph, idxs, ops, num_ops);
}
GGML_API bool ggml_can_fuse_subgraph_ext(const struct ggml_cgraph * cgraph,
const int * node_idxs,
int count,
const enum ggml_op * ops,
const int * outputs,
int num_outputs);
// Returns true if the subgraph formed by {node_idxs} can be fused
// checks whethers all nodes which are not part of outputs can be elided
// by checking if their num_uses are confined to the subgraph
static inline bool ggml_can_fuse_subgraph(const struct ggml_cgraph * cgraph,
int node_idx,
int count,
const enum ggml_op * ops,
const int * outputs,
int num_outputs) {
GGML_ASSERT(count < 32);
if (node_idx + count > cgraph->n_nodes) {
return false;
}
int idxs[32];
for (int i = 0; i < count; ++i) {
idxs[i] = node_idx + i;
}
return ggml_can_fuse_subgraph_ext(cgraph, idxs, count, ops, outputs, num_outputs);
}
#ifdef __cplusplus
}
#endif
#ifdef __cplusplus
#include <array>
#include <initializer_list>
#include <vector>
// nicer C++ syntax for ggml_can_fuse
inline bool ggml_can_fuse(const struct ggml_cgraph * cgraph, int node_idx, std::initializer_list<enum ggml_op> ops) {
return ggml_can_fuse(cgraph, node_idx, ops.begin(), (int)ops.size());
}
inline bool ggml_can_fuse_subgraph(const struct ggml_cgraph * cgraph,
int start_idx,
std::initializer_list<enum ggml_op> ops,
std::initializer_list<int> outputs = {}) {
return ggml_can_fuse_subgraph(cgraph, start_idx, ops.size(), ops.begin(), outputs.begin(), outputs.size());
}
// Return true if the edges in the graph match expectations.
inline bool ggml_check_edges(const struct ggml_cgraph * cgraph,
int start_idx,
std::initializer_list<std::array<int, 3>> edges) {
for (const auto & edge : edges) {
int dst_node = edge[0];
int src_idx = edge[1];
int src_node = edge[2];
if (cgraph->nodes[start_idx + dst_node]->src[src_idx] != cgraph->nodes[start_idx + src_node]) {
return false;
}
}
return true;
}
// expose GGUF internals for test code
GGML_API size_t gguf_type_size(enum gguf_type type);
GGML_API void gguf_write_to_buf(const struct gguf_context * ctx, std::vector<int8_t> & buf, bool only_meta);
#endif // __cplusplus