#define NIR_BUILDER_H
#include "nir_control_flow.h"
+#include "util/bitscan.h"
+#include "util/half_float.h"
struct exec_list;
gl_shader_stage stage,
const nir_shader_compiler_options *options)
{
- build->shader = nir_shader_create(mem_ctx, stage, options);
+ build->shader = nir_shader_create(mem_ctx, stage, options, NULL);
nir_function *func = nir_function_create(build->shader, "main");
+ func->is_entrypoint = true;
build->exact = false;
build->impl = nir_function_impl_create(func);
build->cursor = nir_after_cf_list(&build->impl->body);
build->cursor = nir_after_instr(instr);
}
+static inline nir_instr *
+nir_builder_last_instr(nir_builder *build)
+{
+ assert(build->cursor.option == nir_cursor_after_instr);
+ return build->cursor.instr;
+}
+
static inline void
nir_builder_cf_insert(nir_builder *build, nir_cf_node *cf)
{
nir_cf_node_insert(build->cursor, cf);
}
+static inline bool
+nir_builder_is_inside_cf(nir_builder *build, nir_cf_node *cf_node)
+{
+ nir_block *block = nir_cursor_current_block(build->cursor);
+ for (nir_cf_node *n = &block->cf_node; n; n = n->parent) {
+ if (n == cf_node)
+ return true;
+ }
+ return false;
+}
+
+static inline nir_if *
+nir_push_if(nir_builder *build, nir_ssa_def *condition)
+{
+ nir_if *nif = nir_if_create(build->shader);
+ nif->condition = nir_src_for_ssa(condition);
+ nir_builder_cf_insert(build, &nif->cf_node);
+ build->cursor = nir_before_cf_list(&nif->then_list);
+ return nif;
+}
+
+static inline nir_if *
+nir_push_else(nir_builder *build, nir_if *nif)
+{
+ if (nif) {
+ assert(nir_builder_is_inside_cf(build, &nif->cf_node));
+ } else {
+ nir_block *block = nir_cursor_current_block(build->cursor);
+ nif = nir_cf_node_as_if(block->cf_node.parent);
+ }
+ build->cursor = nir_before_cf_list(&nif->else_list);
+ return nif;
+}
+
+static inline void
+nir_pop_if(nir_builder *build, nir_if *nif)
+{
+ if (nif) {
+ assert(nir_builder_is_inside_cf(build, &nif->cf_node));
+ } else {
+ nir_block *block = nir_cursor_current_block(build->cursor);
+ nif = nir_cf_node_as_if(block->cf_node.parent);
+ }
+ build->cursor = nir_after_cf_node(&nif->cf_node);
+}
+
+static inline nir_ssa_def *
+nir_if_phi(nir_builder *build, nir_ssa_def *then_def, nir_ssa_def *else_def)
+{
+ nir_block *block = nir_cursor_current_block(build->cursor);
+ nir_if *nif = nir_cf_node_as_if(nir_cf_node_prev(&block->cf_node));
+
+ nir_phi_instr *phi = nir_phi_instr_create(build->shader);
+
+ nir_phi_src *src = ralloc(phi, nir_phi_src);
+ src->pred = nir_if_last_then_block(nif);
+ src->src = nir_src_for_ssa(then_def);
+ exec_list_push_tail(&phi->srcs, &src->node);
+
+ src = ralloc(phi, nir_phi_src);
+ src->pred = nir_if_last_else_block(nif);
+ src->src = nir_src_for_ssa(else_def);
+ exec_list_push_tail(&phi->srcs, &src->node);
+
+ assert(then_def->num_components == else_def->num_components);
+ assert(then_def->bit_size == else_def->bit_size);
+ nir_ssa_dest_init(&phi->instr, &phi->dest,
+ then_def->num_components, then_def->bit_size, NULL);
+
+ nir_builder_instr_insert(build, &phi->instr);
+
+ return &phi->dest.ssa;
+}
+
+static inline nir_loop *
+nir_push_loop(nir_builder *build)
+{
+ nir_loop *loop = nir_loop_create(build->shader);
+ nir_builder_cf_insert(build, &loop->cf_node);
+ build->cursor = nir_before_cf_list(&loop->body);
+ return loop;
+}
+
+static inline void
+nir_pop_loop(nir_builder *build, nir_loop *loop)
+{
+ if (loop) {
+ assert(nir_builder_is_inside_cf(build, &loop->cf_node));
+ } else {
+ nir_block *block = nir_cursor_current_block(build->cursor);
+ loop = nir_cf_node_as_loop(block->cf_node.parent);
+ }
+ build->cursor = nir_after_cf_node(&loop->cf_node);
+}
+
+static inline nir_ssa_def *
+nir_ssa_undef(nir_builder *build, unsigned num_components, unsigned bit_size)
+{
+ nir_ssa_undef_instr *undef =
+ nir_ssa_undef_instr_create(build->shader, num_components, bit_size);
+ if (!undef)
+ return NULL;
+
+ nir_instr_insert(nir_before_cf_list(&build->impl->body), &undef->instr);
+
+ return &undef->def;
+}
+
static inline nir_ssa_def *
-nir_build_imm(nir_builder *build, unsigned num_components, nir_const_value value)
+nir_build_imm(nir_builder *build, unsigned num_components,
+ unsigned bit_size, const nir_const_value *value)
{
nir_load_const_instr *load_const =
- nir_load_const_instr_create(build->shader, num_components);
+ nir_load_const_instr_create(build->shader, num_components, bit_size);
if (!load_const)
return NULL;
- load_const->value = value;
+ memcpy(load_const->value, value, sizeof(nir_const_value) * num_components);
+
+ nir_builder_instr_insert(build, &load_const->instr);
+
+ return &load_const->def;
+}
+
+static inline nir_ssa_def *
+nir_imm_zero(nir_builder *build, unsigned num_components, unsigned bit_size)
+{
+ nir_load_const_instr *load_const =
+ nir_load_const_instr_create(build->shader, num_components, bit_size);
+
+ /* nir_load_const_instr_create uses rzalloc so it's already zero */
nir_builder_instr_insert(build, &load_const->instr);
return &load_const->def;
}
+static inline nir_ssa_def *
+nir_imm_boolN_t(nir_builder *build, bool x, unsigned bit_size)
+{
+ nir_const_value v = nir_const_value_for_bool(x, bit_size);
+ return nir_build_imm(build, 1, bit_size, &v);
+}
+
+static inline nir_ssa_def *
+nir_imm_bool(nir_builder *build, bool x)
+{
+ return nir_imm_boolN_t(build, x, 1);
+}
+
+static inline nir_ssa_def *
+nir_imm_true(nir_builder *build)
+{
+ return nir_imm_bool(build, true);
+}
+
+static inline nir_ssa_def *
+nir_imm_false(nir_builder *build)
+{
+ return nir_imm_bool(build, false);
+}
+
+static inline nir_ssa_def *
+nir_imm_floatN_t(nir_builder *build, double x, unsigned bit_size)
+{
+ nir_const_value v = nir_const_value_for_float(x, bit_size);
+ return nir_build_imm(build, 1, bit_size, &v);
+}
+
+static inline nir_ssa_def *
+nir_imm_float16(nir_builder *build, float x)
+{
+ return nir_imm_floatN_t(build, x, 16);
+}
+
static inline nir_ssa_def *
nir_imm_float(nir_builder *build, float x)
{
- nir_const_value v;
+ return nir_imm_floatN_t(build, x, 32);
+}
- memset(&v, 0, sizeof(v));
- v.f32[0] = x;
+static inline nir_ssa_def *
+nir_imm_double(nir_builder *build, double x)
+{
+ return nir_imm_floatN_t(build, x, 64);
+}
- return nir_build_imm(build, 1, v);
+static inline nir_ssa_def *
+nir_imm_vec2(nir_builder *build, float x, float y)
+{
+ nir_const_value v[2] = {
+ nir_const_value_for_float(x, 32),
+ nir_const_value_for_float(y, 32),
+ };
+ return nir_build_imm(build, 2, 32, v);
}
static inline nir_ssa_def *
nir_imm_vec4(nir_builder *build, float x, float y, float z, float w)
{
- nir_const_value v;
+ nir_const_value v[4] = {
+ nir_const_value_for_float(x, 32),
+ nir_const_value_for_float(y, 32),
+ nir_const_value_for_float(z, 32),
+ nir_const_value_for_float(w, 32),
+ };
+
+ return nir_build_imm(build, 4, 32, v);
+}
- memset(&v, 0, sizeof(v));
- v.f32[0] = x;
- v.f32[1] = y;
- v.f32[2] = z;
- v.f32[3] = w;
+static inline nir_ssa_def *
+nir_imm_vec4_16(nir_builder *build, float x, float y, float z, float w)
+{
+ nir_const_value v[4] = {
+ nir_const_value_for_float(x, 16),
+ nir_const_value_for_float(y, 16),
+ nir_const_value_for_float(z, 16),
+ nir_const_value_for_float(w, 16),
+ };
+
+ return nir_build_imm(build, 4, 16, v);
+}
- return nir_build_imm(build, 4, v);
+static inline nir_ssa_def *
+nir_imm_intN_t(nir_builder *build, uint64_t x, unsigned bit_size)
+{
+ nir_const_value v = nir_const_value_for_raw_uint(x, bit_size);
+ return nir_build_imm(build, 1, bit_size, &v);
}
static inline nir_ssa_def *
nir_imm_int(nir_builder *build, int x)
{
- nir_const_value v;
-
- memset(&v, 0, sizeof(v));
- v.i32[0] = x;
+ return nir_imm_intN_t(build, x, 32);
+}
- return nir_build_imm(build, 1, v);
+static inline nir_ssa_def *
+nir_imm_int64(nir_builder *build, int64_t x)
+{
+ return nir_imm_intN_t(build, x, 64);
}
static inline nir_ssa_def *
-nir_imm_ivec4(nir_builder *build, int x, int y, int z, int w)
+nir_imm_ivec2(nir_builder *build, int x, int y)
{
- nir_const_value v;
+ nir_const_value v[2] = {
+ nir_const_value_for_int(x, 32),
+ nir_const_value_for_int(y, 32),
+ };
- memset(&v, 0, sizeof(v));
- v.i32[0] = x;
- v.i32[1] = y;
- v.i32[2] = z;
- v.i32[3] = w;
+ return nir_build_imm(build, 2, 32, v);
+}
- return nir_build_imm(build, 4, v);
+static inline nir_ssa_def *
+nir_imm_ivec4(nir_builder *build, int x, int y, int z, int w)
+{
+ nir_const_value v[4] = {
+ nir_const_value_for_int(x, 32),
+ nir_const_value_for_int(y, 32),
+ nir_const_value_for_int(z, 32),
+ nir_const_value_for_int(w, 32),
+ };
+
+ return nir_build_imm(build, 4, 32, v);
}
static inline nir_ssa_def *
-nir_build_alu(nir_builder *build, nir_op op, nir_ssa_def *src0,
- nir_ssa_def *src1, nir_ssa_def *src2, nir_ssa_def *src3)
+nir_builder_alu_instr_finish_and_insert(nir_builder *build, nir_alu_instr *instr)
{
- const nir_op_info *op_info = &nir_op_infos[op];
- nir_alu_instr *instr = nir_alu_instr_create(build->shader, op);
- if (!instr)
- return NULL;
+ const nir_op_info *op_info = &nir_op_infos[instr->op];
instr->exact = build->exact;
- instr->src[0].src = nir_src_for_ssa(src0);
- if (src1)
- instr->src[1].src = nir_src_for_ssa(src1);
- if (src2)
- instr->src[2].src = nir_src_for_ssa(src2);
- if (src3)
- instr->src[3].src = nir_src_for_ssa(src3);
-
/* Guess the number of components the destination temporary should have
* based on our input sizes, if it's not fixed for the op.
*/
}
}
+ /* When in doubt, assume 32. */
+ if (bit_size == 0)
+ bit_size = 32;
+
/* Make sure we don't swizzle from outside of our source vector (like if a
* scalar value was passed into a multiply with a vector).
*/
for (unsigned i = 0; i < op_info->num_inputs; i++) {
- for (unsigned j = instr->src[i].src.ssa->num_components; j < 4; j++) {
+ for (unsigned j = instr->src[i].src.ssa->num_components;
+ j < NIR_MAX_VEC_COMPONENTS; j++) {
instr->src[i].swizzle[j] = instr->src[i].src.ssa->num_components - 1;
}
}
return &instr->dest.dest.ssa;
}
-#define ALU1(op) \
-static inline nir_ssa_def * \
-nir_##op(nir_builder *build, nir_ssa_def *src0) \
-{ \
- return nir_build_alu(build, nir_op_##op, src0, NULL, NULL, NULL); \
-}
-
-#define ALU2(op) \
-static inline nir_ssa_def * \
-nir_##op(nir_builder *build, nir_ssa_def *src0, nir_ssa_def *src1) \
-{ \
- return nir_build_alu(build, nir_op_##op, src0, src1, NULL, NULL); \
-}
+static inline nir_ssa_def *
+nir_build_alu(nir_builder *build, nir_op op, nir_ssa_def *src0,
+ nir_ssa_def *src1, nir_ssa_def *src2, nir_ssa_def *src3)
+{
+ nir_alu_instr *instr = nir_alu_instr_create(build->shader, op);
+ if (!instr)
+ return NULL;
-#define ALU3(op) \
-static inline nir_ssa_def * \
-nir_##op(nir_builder *build, nir_ssa_def *src0, \
- nir_ssa_def *src1, nir_ssa_def *src2) \
-{ \
- return nir_build_alu(build, nir_op_##op, src0, src1, src2, NULL); \
-}
+ instr->src[0].src = nir_src_for_ssa(src0);
+ if (src1)
+ instr->src[1].src = nir_src_for_ssa(src1);
+ if (src2)
+ instr->src[2].src = nir_src_for_ssa(src2);
+ if (src3)
+ instr->src[3].src = nir_src_for_ssa(src3);
-#define ALU4(op) \
-static inline nir_ssa_def * \
-nir_##op(nir_builder *build, nir_ssa_def *src0, \
- nir_ssa_def *src1, nir_ssa_def *src2, nir_ssa_def *src3) \
-{ \
- return nir_build_alu(build, nir_op_##op, src0, src1, src2, src3); \
+ return nir_builder_alu_instr_finish_and_insert(build, instr);
}
-#include "nir_builder_opcodes.h"
-
+/* for the couple special cases with more than 4 src args: */
static inline nir_ssa_def *
-nir_vec(nir_builder *build, nir_ssa_def **comp, unsigned num_components)
+nir_build_alu_src_arr(nir_builder *build, nir_op op, nir_ssa_def **srcs)
{
- switch (num_components) {
- case 4:
- return nir_vec4(build, comp[0], comp[1], comp[2], comp[3]);
- case 3:
- return nir_vec3(build, comp[0], comp[1], comp[2]);
- case 2:
- return nir_vec2(build, comp[0], comp[1]);
- case 1:
- return comp[0];
- default:
- unreachable("bad component count");
+ const nir_op_info *op_info = &nir_op_infos[op];
+ nir_alu_instr *instr = nir_alu_instr_create(build->shader, op);
+ if (!instr)
return NULL;
- }
+
+ for (unsigned i = 0; i < op_info->num_inputs; i++)
+ instr->src[i].src = nir_src_for_ssa(srcs[i]);
+
+ return nir_builder_alu_instr_finish_and_insert(build, instr);
}
-/**
- * Similar to nir_fmov, but takes a nir_alu_src instead of a nir_ssa_def.
- */
+#include "nir_builder_opcodes.h"
+
static inline nir_ssa_def *
-nir_fmov_alu(nir_builder *build, nir_alu_src src, unsigned num_components)
+nir_vec(nir_builder *build, nir_ssa_def **comp, unsigned num_components)
{
- nir_alu_instr *mov = nir_alu_instr_create(build->shader, nir_op_fmov);
- nir_ssa_dest_init(&mov->instr, &mov->dest.dest, num_components,
- nir_src_bit_size(src.src), NULL);
- mov->exact = build->exact;
- mov->dest.write_mask = (1 << num_components) - 1;
- mov->src[0] = src;
- nir_builder_instr_insert(build, &mov->instr);
-
- return &mov->dest.dest.ssa;
+ return nir_build_alu_src_arr(build, nir_op_vec(num_components), comp);
}
static inline nir_ssa_def *
-nir_imov_alu(nir_builder *build, nir_alu_src src, unsigned num_components)
+nir_mov_alu(nir_builder *build, nir_alu_src src, unsigned num_components)
{
- nir_alu_instr *mov = nir_alu_instr_create(build->shader, nir_op_imov);
+ assert(!src.abs && !src.negate);
+ nir_alu_instr *mov = nir_alu_instr_create(build->shader, nir_op_mov);
nir_ssa_dest_init(&mov->instr, &mov->dest.dest, num_components,
nir_src_bit_size(src.src), NULL);
mov->exact = build->exact;
* Construct an fmov or imov that reswizzles the source's components.
*/
static inline nir_ssa_def *
-nir_swizzle(nir_builder *build, nir_ssa_def *src, unsigned swiz[4],
- unsigned num_components, bool use_fmov)
+nir_swizzle(nir_builder *build, nir_ssa_def *src, const unsigned *swiz,
+ unsigned num_components)
{
+ assert(num_components <= NIR_MAX_VEC_COMPONENTS);
nir_alu_src alu_src = { NIR_SRC_INIT };
alu_src.src = nir_src_for_ssa(src);
- for (unsigned i = 0; i < num_components; i++)
+
+ bool is_identity_swizzle = true;
+ for (unsigned i = 0; i < num_components && i < NIR_MAX_VEC_COMPONENTS; i++) {
+ if (swiz[i] != i)
+ is_identity_swizzle = false;
alu_src.swizzle[i] = swiz[i];
+ }
+
+ if (num_components == src->num_components && is_identity_swizzle)
+ return src;
- return use_fmov ? nir_fmov_alu(build, alu_src, num_components) :
- nir_imov_alu(build, alu_src, num_components);
+ return nir_mov_alu(build, alu_src, num_components);
}
/* Selects the right fdot given the number of components in each source. */
return NULL;
}
+static inline nir_ssa_def *
+nir_ball_iequal(nir_builder *b, nir_ssa_def *src0, nir_ssa_def *src1)
+{
+ switch (src0->num_components) {
+ case 1: return nir_ieq(b, src0, src1);
+ case 2: return nir_ball_iequal2(b, src0, src1);
+ case 3: return nir_ball_iequal3(b, src0, src1);
+ case 4: return nir_ball_iequal4(b, src0, src1);
+ default:
+ unreachable("bad component size");
+ }
+}
+
+static inline nir_ssa_def *
+nir_bany_inequal(nir_builder *b, nir_ssa_def *src0, nir_ssa_def *src1)
+{
+ switch (src0->num_components) {
+ case 1: return nir_ine(b, src0, src1);
+ case 2: return nir_bany_inequal2(b, src0, src1);
+ case 3: return nir_bany_inequal3(b, src0, src1);
+ case 4: return nir_bany_inequal4(b, src0, src1);
+ default:
+ unreachable("bad component size");
+ }
+}
+
+static inline nir_ssa_def *
+nir_bany(nir_builder *b, nir_ssa_def *src)
+{
+ return nir_bany_inequal(b, src, nir_imm_false(b));
+}
+
static inline nir_ssa_def *
nir_channel(nir_builder *b, nir_ssa_def *def, unsigned c)
{
- unsigned swizzle[4] = {c, c, c, c};
- return nir_swizzle(b, def, swizzle, 1, false);
+ return nir_swizzle(b, def, &c, 1);
+}
+
+static inline nir_ssa_def *
+nir_channels(nir_builder *b, nir_ssa_def *def, nir_component_mask_t mask)
+{
+ unsigned num_channels = 0, swizzle[NIR_MAX_VEC_COMPONENTS] = { 0 };
+
+ for (unsigned i = 0; i < NIR_MAX_VEC_COMPONENTS; i++) {
+ if ((mask & (1 << i)) == 0)
+ continue;
+ swizzle[num_channels++] = i;
+ }
+
+ return nir_swizzle(b, def, swizzle, num_channels);
+}
+
+static inline nir_ssa_def *
+_nir_vector_extract_helper(nir_builder *b, nir_ssa_def *vec, nir_ssa_def *c,
+ unsigned start, unsigned end)
+{
+ if (start == end - 1) {
+ return nir_channel(b, vec, start);
+ } else {
+ unsigned mid = start + (end - start) / 2;
+ return nir_bcsel(b, nir_ilt(b, c, nir_imm_int(b, mid)),
+ _nir_vector_extract_helper(b, vec, c, start, mid),
+ _nir_vector_extract_helper(b, vec, c, mid, end));
+ }
+}
+
+static inline nir_ssa_def *
+nir_vector_extract(nir_builder *b, nir_ssa_def *vec, nir_ssa_def *c)
+{
+ nir_src c_src = nir_src_for_ssa(c);
+ if (nir_src_is_const(c_src)) {
+ unsigned c_const = nir_src_as_uint(c_src);
+ if (c_const < vec->num_components)
+ return nir_channel(b, vec, c_const);
+ else
+ return nir_ssa_undef(b, 1, vec->bit_size);
+ } else {
+ return _nir_vector_extract_helper(b, vec, c, 0, vec->num_components);
+ }
+}
+
+static inline nir_ssa_def *
+nir_i2i(nir_builder *build, nir_ssa_def *x, unsigned dest_bit_size)
+{
+ if (x->bit_size == dest_bit_size)
+ return x;
+
+ switch (dest_bit_size) {
+ case 64: return nir_i2i64(build, x);
+ case 32: return nir_i2i32(build, x);
+ case 16: return nir_i2i16(build, x);
+ case 8: return nir_i2i8(build, x);
+ default: unreachable("Invalid bit size");
+ }
+}
+
+static inline nir_ssa_def *
+nir_u2u(nir_builder *build, nir_ssa_def *x, unsigned dest_bit_size)
+{
+ if (x->bit_size == dest_bit_size)
+ return x;
+
+ switch (dest_bit_size) {
+ case 64: return nir_u2u64(build, x);
+ case 32: return nir_u2u32(build, x);
+ case 16: return nir_u2u16(build, x);
+ case 8: return nir_u2u8(build, x);
+ default: unreachable("Invalid bit size");
+ }
+}
+
+static inline nir_ssa_def *
+nir_iadd_imm(nir_builder *build, nir_ssa_def *x, uint64_t y)
+{
+ assert(x->bit_size <= 64);
+ if (x->bit_size < 64)
+ y &= (1ull << x->bit_size) - 1;
+
+ if (y == 0) {
+ return x;
+ } else {
+ return nir_iadd(build, x, nir_imm_intN_t(build, y, x->bit_size));
+ }
+}
+
+static inline nir_ssa_def *
+nir_imul_imm(nir_builder *build, nir_ssa_def *x, uint64_t y)
+{
+ assert(x->bit_size <= 64);
+ if (x->bit_size < 64)
+ y &= (1ull << x->bit_size) - 1;
+
+ if (y == 0) {
+ return nir_imm_intN_t(build, 0, x->bit_size);
+ } else if (y == 1) {
+ return x;
+ } else if (util_is_power_of_two_or_zero64(y)) {
+ return nir_ishl(build, x, nir_imm_int(build, ffsll(y) - 1));
+ } else {
+ return nir_imul(build, x, nir_imm_intN_t(build, y, x->bit_size));
+ }
+}
+
+static inline nir_ssa_def *
+nir_fadd_imm(nir_builder *build, nir_ssa_def *x, double y)
+{
+ return nir_fadd(build, x, nir_imm_floatN_t(build, y, x->bit_size));
+}
+
+static inline nir_ssa_def *
+nir_fmul_imm(nir_builder *build, nir_ssa_def *x, double y)
+{
+ return nir_fmul(build, x, nir_imm_floatN_t(build, y, x->bit_size));
+}
+
+static inline nir_ssa_def *
+nir_pack_bits(nir_builder *b, nir_ssa_def *src, unsigned dest_bit_size)
+{
+ assert(src->num_components * src->bit_size == dest_bit_size);
+
+ switch (dest_bit_size) {
+ case 64:
+ switch (src->bit_size) {
+ case 32: return nir_pack_64_2x32(b, src);
+ case 16: return nir_pack_64_4x16(b, src);
+ default: break;
+ }
+ break;
+
+ case 32:
+ if (src->bit_size == 16)
+ return nir_pack_32_2x16(b, src);
+ break;
+
+ default:
+ break;
+ }
+
+ /* If we got here, we have no dedicated unpack opcode. */
+ nir_ssa_def *dest = nir_imm_intN_t(b, 0, dest_bit_size);
+ for (unsigned i = 0; i < src->num_components; i++) {
+ nir_ssa_def *val = nir_u2u(b, nir_channel(b, src, i), dest_bit_size);
+ val = nir_ishl(b, val, nir_imm_int(b, i * src->bit_size));
+ dest = nir_ior(b, dest, val);
+ }
+ return dest;
+}
+
+static inline nir_ssa_def *
+nir_unpack_bits(nir_builder *b, nir_ssa_def *src, unsigned dest_bit_size)
+{
+ assert(src->num_components == 1);
+ assert(src->bit_size > dest_bit_size);
+ const unsigned dest_num_components = src->bit_size / dest_bit_size;
+ assert(dest_num_components <= NIR_MAX_VEC_COMPONENTS);
+
+ switch (src->bit_size) {
+ case 64:
+ switch (dest_bit_size) {
+ case 32: return nir_unpack_64_2x32(b, src);
+ case 16: return nir_unpack_64_4x16(b, src);
+ default: break;
+ }
+ break;
+
+ case 32:
+ if (dest_bit_size == 16)
+ return nir_unpack_32_2x16(b, src);
+ break;
+
+ default:
+ break;
+ }
+
+ /* If we got here, we have no dedicated unpack opcode. */
+ nir_ssa_def *dest_comps[NIR_MAX_VEC_COMPONENTS];
+ for (unsigned i = 0; i < dest_num_components; i++) {
+ nir_ssa_def *val = nir_ushr(b, src, nir_imm_int(b, i * dest_bit_size));
+ dest_comps[i] = nir_u2u(b, val, dest_bit_size);
+ }
+ return nir_vec(b, dest_comps, dest_num_components);
+}
+
+static inline nir_ssa_def *
+nir_bitcast_vector(nir_builder *b, nir_ssa_def *src, unsigned dest_bit_size)
+{
+ assert((src->bit_size * src->num_components) % dest_bit_size == 0);
+ const unsigned dest_num_components =
+ (src->bit_size * src->num_components) / dest_bit_size;
+ assert(dest_num_components <= NIR_MAX_VEC_COMPONENTS);
+
+ if (src->bit_size > dest_bit_size) {
+ assert(src->bit_size % dest_bit_size == 0);
+ if (src->num_components == 1) {
+ return nir_unpack_bits(b, src, dest_bit_size);
+ } else {
+ const unsigned divisor = src->bit_size / dest_bit_size;
+ assert(src->num_components * divisor == dest_num_components);
+ nir_ssa_def *dest[NIR_MAX_VEC_COMPONENTS];
+ for (unsigned i = 0; i < src->num_components; i++) {
+ nir_ssa_def *unpacked =
+ nir_unpack_bits(b, nir_channel(b, src, i), dest_bit_size);
+ assert(unpacked->num_components == divisor);
+ for (unsigned j = 0; j < divisor; j++)
+ dest[i * divisor + j] = nir_channel(b, unpacked, j);
+ }
+ return nir_vec(b, dest, dest_num_components);
+ }
+ } else if (src->bit_size < dest_bit_size) {
+ assert(dest_bit_size % src->bit_size == 0);
+ if (dest_num_components == 1) {
+ return nir_pack_bits(b, src, dest_bit_size);
+ } else {
+ const unsigned divisor = dest_bit_size / src->bit_size;
+ assert(src->num_components == dest_num_components * divisor);
+ nir_ssa_def *dest[NIR_MAX_VEC_COMPONENTS];
+ for (unsigned i = 0; i < dest_num_components; i++) {
+ nir_component_mask_t src_mask =
+ ((1 << divisor) - 1) << (i * divisor);
+ dest[i] = nir_pack_bits(b, nir_channels(b, src, src_mask),
+ dest_bit_size);
+ }
+ return nir_vec(b, dest, dest_num_components);
+ }
+ } else {
+ assert(src->bit_size == dest_bit_size);
+ return src;
+ }
}
/**
for (int j = 0; j < 4; j++)
alu.swizzle[j] = j;
- return nir_imov_alu(build, alu, num_components);
+ return nir_mov_alu(build, alu, num_components);
}
/**
- * Similar to nir_ssa_for_src(), but for alu src's, respecting the
+ * Similar to nir_ssa_for_src(), but for alu srcs, respecting the
* nir_alu_src's swizzle.
*/
static inline nir_ssa_def *
nir_ssa_for_alu_src(nir_builder *build, nir_alu_instr *instr, unsigned srcn)
{
- static uint8_t trivial_swizzle[4] = { 0, 1, 2, 3 };
+ static uint8_t trivial_swizzle[] = { 0, 1, 2, 3 };
+ STATIC_ASSERT(ARRAY_SIZE(trivial_swizzle) == NIR_MAX_VEC_COMPONENTS);
+
nir_alu_src *src = &instr->src[srcn];
unsigned num_components = nir_ssa_alu_instr_src_components(instr, srcn);
(memcmp(src->swizzle, trivial_swizzle, num_components) == 0))
return src->src.ssa;
- return nir_imov_alu(build, *src, num_components);
+ return nir_mov_alu(build, *src, num_components);
+}
+
+static inline unsigned
+nir_get_ptr_bitsize(nir_builder *build)
+{
+ if (build->shader->info.stage == MESA_SHADER_KERNEL)
+ return build->shader->info.cs.ptr_size;
+ return 32;
+}
+
+static inline nir_deref_instr *
+nir_build_deref_var(nir_builder *build, nir_variable *var)
+{
+ nir_deref_instr *deref =
+ nir_deref_instr_create(build->shader, nir_deref_type_var);
+
+ deref->mode = var->data.mode;
+ deref->type = var->type;
+ deref->var = var;
+
+ nir_ssa_dest_init(&deref->instr, &deref->dest, 1,
+ nir_get_ptr_bitsize(build), NULL);
+
+ nir_builder_instr_insert(build, &deref->instr);
+
+ return deref;
+}
+
+static inline nir_deref_instr *
+nir_build_deref_array(nir_builder *build, nir_deref_instr *parent,
+ nir_ssa_def *index)
+{
+ assert(glsl_type_is_array(parent->type) ||
+ glsl_type_is_matrix(parent->type) ||
+ glsl_type_is_vector(parent->type));
+
+ assert(index->bit_size == parent->dest.ssa.bit_size);
+
+ nir_deref_instr *deref =
+ nir_deref_instr_create(build->shader, nir_deref_type_array);
+
+ deref->mode = parent->mode;
+ deref->type = glsl_get_array_element(parent->type);
+ deref->parent = nir_src_for_ssa(&parent->dest.ssa);
+ deref->arr.index = nir_src_for_ssa(index);
+
+ nir_ssa_dest_init(&deref->instr, &deref->dest,
+ parent->dest.ssa.num_components,
+ parent->dest.ssa.bit_size, NULL);
+
+ nir_builder_instr_insert(build, &deref->instr);
+
+ return deref;
+}
+
+static inline nir_deref_instr *
+nir_build_deref_array_imm(nir_builder *build, nir_deref_instr *parent,
+ int64_t index)
+{
+ assert(parent->dest.is_ssa);
+ nir_ssa_def *idx_ssa = nir_imm_intN_t(build, index,
+ parent->dest.ssa.bit_size);
+
+ return nir_build_deref_array(build, parent, idx_ssa);
+}
+
+static inline nir_deref_instr *
+nir_build_deref_ptr_as_array(nir_builder *build, nir_deref_instr *parent,
+ nir_ssa_def *index)
+{
+ assert(parent->deref_type == nir_deref_type_array ||
+ parent->deref_type == nir_deref_type_ptr_as_array ||
+ parent->deref_type == nir_deref_type_cast);
+
+ assert(index->bit_size == parent->dest.ssa.bit_size);
+
+ nir_deref_instr *deref =
+ nir_deref_instr_create(build->shader, nir_deref_type_ptr_as_array);
+
+ deref->mode = parent->mode;
+ deref->type = parent->type;
+ deref->parent = nir_src_for_ssa(&parent->dest.ssa);
+ deref->arr.index = nir_src_for_ssa(index);
+
+ nir_ssa_dest_init(&deref->instr, &deref->dest,
+ parent->dest.ssa.num_components,
+ parent->dest.ssa.bit_size, NULL);
+
+ nir_builder_instr_insert(build, &deref->instr);
+
+ return deref;
+}
+
+static inline nir_deref_instr *
+nir_build_deref_array_wildcard(nir_builder *build, nir_deref_instr *parent)
+{
+ assert(glsl_type_is_array(parent->type) ||
+ glsl_type_is_matrix(parent->type));
+
+ nir_deref_instr *deref =
+ nir_deref_instr_create(build->shader, nir_deref_type_array_wildcard);
+
+ deref->mode = parent->mode;
+ deref->type = glsl_get_array_element(parent->type);
+ deref->parent = nir_src_for_ssa(&parent->dest.ssa);
+
+ nir_ssa_dest_init(&deref->instr, &deref->dest,
+ parent->dest.ssa.num_components,
+ parent->dest.ssa.bit_size, NULL);
+
+ nir_builder_instr_insert(build, &deref->instr);
+
+ return deref;
+}
+
+static inline nir_deref_instr *
+nir_build_deref_struct(nir_builder *build, nir_deref_instr *parent,
+ unsigned index)
+{
+ assert(glsl_type_is_struct_or_ifc(parent->type));
+
+ nir_deref_instr *deref =
+ nir_deref_instr_create(build->shader, nir_deref_type_struct);
+
+ deref->mode = parent->mode;
+ deref->type = glsl_get_struct_field(parent->type, index);
+ deref->parent = nir_src_for_ssa(&parent->dest.ssa);
+ deref->strct.index = index;
+
+ nir_ssa_dest_init(&deref->instr, &deref->dest,
+ parent->dest.ssa.num_components,
+ parent->dest.ssa.bit_size, NULL);
+
+ nir_builder_instr_insert(build, &deref->instr);
+
+ return deref;
+}
+
+static inline nir_deref_instr *
+nir_build_deref_cast(nir_builder *build, nir_ssa_def *parent,
+ nir_variable_mode mode, const struct glsl_type *type,
+ unsigned ptr_stride)
+{
+ nir_deref_instr *deref =
+ nir_deref_instr_create(build->shader, nir_deref_type_cast);
+
+ deref->mode = mode;
+ deref->type = type;
+ deref->parent = nir_src_for_ssa(parent);
+ deref->cast.ptr_stride = ptr_stride;
+
+ nir_ssa_dest_init(&deref->instr, &deref->dest,
+ parent->num_components, parent->bit_size, NULL);
+
+ nir_builder_instr_insert(build, &deref->instr);
+
+ return deref;
+}
+
+/** Returns a deref that follows another but starting from the given parent
+ *
+ * The new deref will be the same type and take the same array or struct index
+ * as the leader deref but it may have a different parent. This is very
+ * useful for walking deref paths.
+ */
+static inline nir_deref_instr *
+nir_build_deref_follower(nir_builder *b, nir_deref_instr *parent,
+ nir_deref_instr *leader)
+{
+ /* If the derefs would have the same parent, don't make a new one */
+ assert(leader->parent.is_ssa);
+ if (leader->parent.ssa == &parent->dest.ssa)
+ return leader;
+
+ UNUSED nir_deref_instr *leader_parent = nir_src_as_deref(leader->parent);
+
+ switch (leader->deref_type) {
+ case nir_deref_type_var:
+ unreachable("A var dereference cannot have a parent");
+ break;
+
+ case nir_deref_type_array:
+ case nir_deref_type_array_wildcard:
+ assert(glsl_type_is_matrix(parent->type) ||
+ glsl_type_is_array(parent->type) ||
+ (leader->deref_type == nir_deref_type_array &&
+ glsl_type_is_vector(parent->type)));
+ assert(glsl_get_length(parent->type) ==
+ glsl_get_length(leader_parent->type));
+
+ if (leader->deref_type == nir_deref_type_array) {
+ assert(leader->arr.index.is_ssa);
+ nir_ssa_def *index = nir_i2i(b, leader->arr.index.ssa,
+ parent->dest.ssa.bit_size);
+ return nir_build_deref_array(b, parent, index);
+ } else {
+ return nir_build_deref_array_wildcard(b, parent);
+ }
+
+ case nir_deref_type_struct:
+ assert(glsl_type_is_struct_or_ifc(parent->type));
+ assert(glsl_get_length(parent->type) ==
+ glsl_get_length(leader_parent->type));
+
+ return nir_build_deref_struct(b, parent, leader->strct.index);
+
+ default:
+ unreachable("Invalid deref instruction type");
+ }
}
static inline nir_ssa_def *
-nir_load_var(nir_builder *build, nir_variable *var)
+nir_load_reg(nir_builder *build, nir_register *reg)
{
- const unsigned num_components = glsl_get_vector_elements(var->type);
+ return nir_ssa_for_src(build, nir_src_for_reg(reg), reg->num_components);
+}
+static inline nir_ssa_def *
+nir_load_deref_with_access(nir_builder *build, nir_deref_instr *deref,
+ enum gl_access_qualifier access)
+{
nir_intrinsic_instr *load =
- nir_intrinsic_instr_create(build->shader, nir_intrinsic_load_var);
- load->num_components = num_components;
- load->variables[0] = nir_deref_var_create(load, var);
- nir_ssa_dest_init(&load->instr, &load->dest, num_components,
- glsl_get_bit_size(glsl_get_base_type(var->type)), NULL);
+ nir_intrinsic_instr_create(build->shader, nir_intrinsic_load_deref);
+ load->num_components = glsl_get_vector_elements(deref->type);
+ load->src[0] = nir_src_for_ssa(&deref->dest.ssa);
+ nir_ssa_dest_init(&load->instr, &load->dest, load->num_components,
+ glsl_get_bit_size(deref->type), NULL);
+ nir_intrinsic_set_access(load, access);
nir_builder_instr_insert(build, &load->instr);
return &load->dest.ssa;
}
-static inline void
-nir_store_var(nir_builder *build, nir_variable *var, nir_ssa_def *value,
- unsigned writemask)
+static inline nir_ssa_def *
+nir_load_deref(nir_builder *build, nir_deref_instr *deref)
{
- const unsigned num_components = glsl_get_vector_elements(var->type);
+ return nir_load_deref_with_access(build, deref, (enum gl_access_qualifier)0);
+}
+static inline void
+nir_store_deref_with_access(nir_builder *build, nir_deref_instr *deref,
+ nir_ssa_def *value, unsigned writemask,
+ enum gl_access_qualifier access)
+{
nir_intrinsic_instr *store =
- nir_intrinsic_instr_create(build->shader, nir_intrinsic_store_var);
- store->num_components = num_components;
- nir_intrinsic_set_write_mask(store, writemask);
- store->variables[0] = nir_deref_var_create(store, var);
- store->src[0] = nir_src_for_ssa(value);
+ nir_intrinsic_instr_create(build->shader, nir_intrinsic_store_deref);
+ store->num_components = glsl_get_vector_elements(deref->type);
+ store->src[0] = nir_src_for_ssa(&deref->dest.ssa);
+ store->src[1] = nir_src_for_ssa(value);
+ nir_intrinsic_set_write_mask(store,
+ writemask & ((1 << store->num_components) - 1));
+ nir_intrinsic_set_access(store, access);
nir_builder_instr_insert(build, &store->instr);
}
static inline void
-nir_copy_deref_var(nir_builder *build, nir_deref_var *dest, nir_deref_var *src)
+nir_store_deref(nir_builder *build, nir_deref_instr *deref,
+ nir_ssa_def *value, unsigned writemask)
{
- assert(nir_deref_tail(&dest->deref)->type ==
- nir_deref_tail(&src->deref)->type);
+ nir_store_deref_with_access(build, deref, value, writemask,
+ (enum gl_access_qualifier)0);
+}
+static inline void
+nir_copy_deref_with_access(nir_builder *build, nir_deref_instr *dest,
+ nir_deref_instr *src,
+ enum gl_access_qualifier dest_access,
+ enum gl_access_qualifier src_access)
+{
nir_intrinsic_instr *copy =
- nir_intrinsic_instr_create(build->shader, nir_intrinsic_copy_var);
- copy->variables[0] = nir_deref_as_var(nir_copy_deref(copy, &dest->deref));
- copy->variables[1] = nir_deref_as_var(nir_copy_deref(copy, &src->deref));
+ nir_intrinsic_instr_create(build->shader, nir_intrinsic_copy_deref);
+ copy->src[0] = nir_src_for_ssa(&dest->dest.ssa);
+ copy->src[1] = nir_src_for_ssa(&src->dest.ssa);
+ nir_intrinsic_set_dst_access(copy, dest_access);
+ nir_intrinsic_set_src_access(copy, src_access);
nir_builder_instr_insert(build, ©->instr);
}
+static inline void
+nir_copy_deref(nir_builder *build, nir_deref_instr *dest, nir_deref_instr *src)
+{
+ nir_copy_deref_with_access(build, dest, src,
+ (enum gl_access_qualifier) 0,
+ (enum gl_access_qualifier) 0);
+}
+
+static inline nir_ssa_def *
+nir_load_var(nir_builder *build, nir_variable *var)
+{
+ return nir_load_deref(build, nir_build_deref_var(build, var));
+}
+
+static inline void
+nir_store_var(nir_builder *build, nir_variable *var, nir_ssa_def *value,
+ unsigned writemask)
+{
+ nir_store_deref(build, nir_build_deref_var(build, var), value, writemask);
+}
+
static inline void
nir_copy_var(nir_builder *build, nir_variable *dest, nir_variable *src)
{
- nir_intrinsic_instr *copy =
- nir_intrinsic_instr_create(build->shader, nir_intrinsic_copy_var);
- copy->variables[0] = nir_deref_var_create(copy, dest);
- copy->variables[1] = nir_deref_var_create(copy, src);
- nir_builder_instr_insert(build, ©->instr);
+ nir_copy_deref(build, nir_build_deref_var(build, dest),
+ nir_build_deref_var(build, src));
}
static inline nir_ssa_def *
-nir_load_system_value(nir_builder *build, nir_intrinsic_op op, int index)
+nir_load_param(nir_builder *build, uint32_t param_idx)
{
- nir_intrinsic_instr *load = nir_intrinsic_instr_create(build->shader, op);
- load->num_components = nir_intrinsic_infos[op].dest_components;
- load->const_index[0] = index;
+ assert(param_idx < build->impl->function->num_params);
+ nir_parameter *param = &build->impl->function->params[param_idx];
+
+ nir_intrinsic_instr *load =
+ nir_intrinsic_instr_create(build->shader, nir_intrinsic_load_param);
+ nir_intrinsic_set_param_idx(load, param_idx);
+ load->num_components = param->num_components;
nir_ssa_dest_init(&load->instr, &load->dest,
- nir_intrinsic_infos[op].dest_components, 32, NULL);
+ param->num_components, param->bit_size, NULL);
nir_builder_instr_insert(build, &load->instr);
return &load->dest.ssa;
}
+#include "nir_builder_opcodes.h"
+
+static inline nir_ssa_def *
+nir_f2b(nir_builder *build, nir_ssa_def *f)
+{
+ return nir_f2b1(build, f);
+}
+
+static inline nir_ssa_def *
+nir_i2b(nir_builder *build, nir_ssa_def *i)
+{
+ return nir_i2b1(build, i);
+}
+
+static inline nir_ssa_def *
+nir_b2f(nir_builder *build, nir_ssa_def *b, uint32_t bit_size)
+{
+ switch (bit_size) {
+ case 64: return nir_b2f64(build, b);
+ case 32: return nir_b2f32(build, b);
+ case 16: return nir_b2f16(build, b);
+ default:
+ unreachable("Invalid bit-size");
+ };
+}
+
+static inline nir_ssa_def *
+nir_b2i(nir_builder *build, nir_ssa_def *b, uint32_t bit_size)
+{
+ switch (bit_size) {
+ case 64: return nir_b2i64(build, b);
+ case 32: return nir_b2i32(build, b);
+ case 16: return nir_b2i16(build, b);
+ case 8: return nir_b2i8(build, b);
+ default:
+ unreachable("Invalid bit-size");
+ };
+}
+static inline nir_ssa_def *
+nir_load_barycentric(nir_builder *build, nir_intrinsic_op op,
+ unsigned interp_mode)
+{
+ nir_intrinsic_instr *bary = nir_intrinsic_instr_create(build->shader, op);
+ nir_ssa_dest_init(&bary->instr, &bary->dest, 2, 32, NULL);
+ nir_intrinsic_set_interp_mode(bary, interp_mode);
+ nir_builder_instr_insert(build, &bary->instr);
+ return &bary->dest.ssa;
+}
+
static inline void
nir_jump(nir_builder *build, nir_jump_type jump_type)
{
nir_builder_instr_insert(build, &jump->instr);
}
+static inline nir_ssa_def *
+nir_compare_func(nir_builder *b, enum compare_func func,
+ nir_ssa_def *src0, nir_ssa_def *src1)
+{
+ switch (func) {
+ case COMPARE_FUNC_NEVER:
+ return nir_imm_int(b, 0);
+ case COMPARE_FUNC_ALWAYS:
+ return nir_imm_int(b, ~0);
+ case COMPARE_FUNC_EQUAL:
+ return nir_feq(b, src0, src1);
+ case COMPARE_FUNC_NOTEQUAL:
+ return nir_fne(b, src0, src1);
+ case COMPARE_FUNC_GREATER:
+ return nir_flt(b, src1, src0);
+ case COMPARE_FUNC_GEQUAL:
+ return nir_fge(b, src0, src1);
+ case COMPARE_FUNC_LESS:
+ return nir_flt(b, src0, src1);
+ case COMPARE_FUNC_LEQUAL:
+ return nir_fge(b, src1, src0);
+ }
+ unreachable("bad compare func");
+}
+
#endif /* NIR_BUILDER_H */
projects / mesa.git / blobdiff