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82c659539f
vkd3d/libs/vkd3d-shader/hlsl.y
Zebediah Figura 82c659539f vkd3d-shader: Do not warn if a "for" initializer is empty. 
It is perfectly valid.

Signed-off-by: Zebediah Figura <zfigura@codeweavers.com>
Signed-off-by: Henri Verbeet <hverbeet@codeweavers.com>
Signed-off-by: Matteo Bruni <mbruni@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
2021-02-16 15:59:46 +01:00

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/*
* HLSL parser
*
* Copyright 2008 Stefan Dösinger
* Copyright 2012 Matteo Bruni for CodeWeavers
* Copyright 2019-2020 Zebediah Figura for CodeWeavers
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
%code requires
{
#include "hlsl.h"
#include <stdio.h>
#define HLSL_YYLTYPE struct vkd3d_shader_location
struct parse_parameter
{
struct hlsl_type *type;
const char *name;
const char *semantic;
const struct hlsl_reg_reservation *reg_reservation;
unsigned int modifiers;
};
struct parse_colon_attribute
{
const char *semantic;
struct hlsl_reg_reservation *reg_reservation;
};
struct parse_initializer
{
struct hlsl_ir_node **args;
unsigned int args_count;
struct list *instrs;
};
struct parse_variable_def
{
struct list entry;
struct vkd3d_shader_location loc;
char *name;
uint32_t array_size;
const char *semantic;
struct hlsl_reg_reservation *reg_reservation;
struct parse_initializer initializer;
};
struct parse_function
{
char *name;
struct hlsl_ir_function_decl *decl;
};
struct parse_if_body
{
struct list *then_instrs;
struct list *else_instrs;
};
enum parse_unary_op
{
UNARY_OP_PLUS,
UNARY_OP_MINUS,
UNARY_OP_LOGICNOT,
UNARY_OP_BITNOT,
};
enum parse_assign_op
{
ASSIGN_OP_ASSIGN,
ASSIGN_OP_ADD,
ASSIGN_OP_SUB,
ASSIGN_OP_MUL,
ASSIGN_OP_DIV,
ASSIGN_OP_MOD,
ASSIGN_OP_LSHIFT,
ASSIGN_OP_RSHIFT,
ASSIGN_OP_AND,
ASSIGN_OP_OR,
ASSIGN_OP_XOR,
};
}
%code provides
{
int yylex(HLSL_YYSTYPE *yylval_param, HLSL_YYLTYPE *yylloc_param, void *yyscanner);
}
%code
{
#define YYLLOC_DEFAULT(cur, rhs, n) (cur) = YYRHSLOC(rhs, !!n)
static void yyerror(YYLTYPE *loc, void *scanner, struct hlsl_ctx *ctx, const char *s)
{
hlsl_error(ctx, *loc, "%s", s);
}
static struct hlsl_ir_node *node_from_list(struct list *list)
{
return LIST_ENTRY(list_tail(list), struct hlsl_ir_node, entry);
}
static void debug_dump_decl(struct hlsl_type *type, DWORD modifiers, const char *declname, unsigned int line_no)
{
TRACE("Line %u: ", line_no);
if (modifiers)
TRACE("%s ", hlsl_debug_modifiers(modifiers));
TRACE("%s %s;\n", debug_hlsl_type(type), declname);
}
static void check_invalid_matrix_modifiers(struct hlsl_ctx *ctx, DWORD modifiers, struct vkd3d_shader_location loc)
{
if (modifiers & HLSL_MODIFIERS_MAJORITY_MASK)
hlsl_error(ctx, loc, "'row_major' or 'column_major' modifiers are only allowed for matrices.");
}
static bool convertible_data_type(struct hlsl_type *type)
{
return type->type != HLSL_CLASS_OBJECT;
}
static bool compatible_data_types(struct hlsl_type *t1, struct hlsl_type *t2)
{
if (!convertible_data_type(t1) || !convertible_data_type(t2))
return false;
if (t1->type <= HLSL_CLASS_LAST_NUMERIC)
{
/* Scalar vars can be cast to pretty much everything */
if (t1->dimx == 1 && t1->dimy == 1)
return true;
if (t1->type == HLSL_CLASS_VECTOR && t2->type == HLSL_CLASS_VECTOR)
return t1->dimx >= t2->dimx;
}
/* The other way around is true too i.e. whatever to scalar */
if (t2->type <= HLSL_CLASS_LAST_NUMERIC && t2->dimx == 1 && t2->dimy == 1)
return true;
if (t1->type == HLSL_CLASS_ARRAY)
{
if (hlsl_type_compare(t1->e.array.type, t2))
/* e.g. float4[3] to float4 is allowed */
return true;
if (t2->type == HLSL_CLASS_ARRAY || t2->type == HLSL_CLASS_STRUCT)
return hlsl_type_component_count(t1) >= hlsl_type_component_count(t2);
else
return hlsl_type_component_count(t1) == hlsl_type_component_count(t2);
}
if (t1->type == HLSL_CLASS_STRUCT)
return hlsl_type_component_count(t1) >= hlsl_type_component_count(t2);
if (t2->type == HLSL_CLASS_ARRAY || t2->type == HLSL_CLASS_STRUCT)
return hlsl_type_component_count(t1) == hlsl_type_component_count(t2);
if (t1->type == HLSL_CLASS_MATRIX || t2->type == HLSL_CLASS_MATRIX)
{
if (t1->type == HLSL_CLASS_MATRIX && t2->type == HLSL_CLASS_MATRIX && t1->dimx >= t2->dimx && t1->dimy >= t2->dimy)
return true;
/* Matrix-vector conversion is apparently allowed if they have the same components count */
if ((t1->type == HLSL_CLASS_VECTOR || t2->type == HLSL_CLASS_VECTOR)
&& hlsl_type_component_count(t1) == hlsl_type_component_count(t2))
return true;
return false;
}
if (hlsl_type_component_count(t1) >= hlsl_type_component_count(t2))
return true;
return false;
}
static bool implicit_compatible_data_types(struct hlsl_type *t1, struct hlsl_type *t2)
{
if (!convertible_data_type(t1) || !convertible_data_type(t2))
return false;
if (t1->type <= HLSL_CLASS_LAST_NUMERIC)
{
/* Scalar vars can be converted to any other numeric data type */
if (t1->dimx == 1 && t1->dimy == 1 && t2->type <= HLSL_CLASS_LAST_NUMERIC)
return true;
/* The other way around is true too */
if (t2->dimx == 1 && t2->dimy == 1 && t2->type <= HLSL_CLASS_LAST_NUMERIC)
return true;
}
if (t1->type == HLSL_CLASS_ARRAY && t2->type == HLSL_CLASS_ARRAY)
{
return hlsl_type_component_count(t1) == hlsl_type_component_count(t2);
}
if ((t1->type == HLSL_CLASS_ARRAY && t2->type <= HLSL_CLASS_LAST_NUMERIC)
|| (t1->type <= HLSL_CLASS_LAST_NUMERIC && t2->type == HLSL_CLASS_ARRAY))
{
/* e.g. float4[3] to float4 is allowed */
if (t1->type == HLSL_CLASS_ARRAY && hlsl_type_compare(t1->e.array.type, t2))
return true;
if (hlsl_type_component_count(t1) == hlsl_type_component_count(t2))
return true;
return false;
}
if (t1->type <= HLSL_CLASS_VECTOR && t2->type <= HLSL_CLASS_VECTOR)
{
if (t1->dimx >= t2->dimx)
return true;
return false;
}
if (t1->type == HLSL_CLASS_MATRIX || t2->type == HLSL_CLASS_MATRIX)
{
if (t1->type == HLSL_CLASS_MATRIX && t2->type == HLSL_CLASS_MATRIX
&& t1->dimx >= t2->dimx && t1->dimy >= t2->dimy)
return true;
/* Matrix-vector conversion is apparently allowed if they have the same components count */
if ((t1->type == HLSL_CLASS_VECTOR || t2->type == HLSL_CLASS_VECTOR)
&& hlsl_type_component_count(t1) == hlsl_type_component_count(t2))
return true;
return false;
}
if (t1->type == HLSL_CLASS_STRUCT && t2->type == HLSL_CLASS_STRUCT)
return hlsl_type_compare(t1, t2);
return false;
}
static struct hlsl_ir_node *add_implicit_conversion(struct hlsl_ctx *ctx, struct list *instrs,
struct hlsl_ir_node *node, struct hlsl_type *dst_type, struct vkd3d_shader_location *loc)
{
struct hlsl_type *src_type = node->data_type;
struct hlsl_ir_expr *cast;
if (hlsl_type_compare(src_type, dst_type))
return node;
if (!implicit_compatible_data_types(src_type, dst_type))
{
hlsl_error(ctx, *loc, "can't implicitly convert %s to %s",
debug_hlsl_type(src_type), debug_hlsl_type(dst_type));
return NULL;
}
if (dst_type->dimx * dst_type->dimy < src_type->dimx * src_type->dimy)
hlsl_warning(ctx, *loc, "implicit truncation of vector type");
TRACE("Implicit conversion from %s to %s.\n", debug_hlsl_type(src_type), debug_hlsl_type(dst_type));
if (!(cast = hlsl_new_cast(node, dst_type, loc)))
return NULL;
list_add_tail(instrs, &cast->node.entry);
return &cast->node;
}
static bool declare_variable(struct hlsl_ctx *ctx, struct hlsl_ir_var *decl, bool local)
{
bool ret;
TRACE("Declaring variable %s.\n", decl->name);
if (decl->data_type->type != HLSL_CLASS_MATRIX)
check_invalid_matrix_modifiers(ctx, decl->modifiers, decl->loc);
if (local)
{
DWORD invalid = decl->modifiers & (HLSL_STORAGE_EXTERN | HLSL_STORAGE_SHARED
| HLSL_STORAGE_GROUPSHARED | HLSL_STORAGE_UNIFORM);
if (invalid)
{
hlsl_error(ctx, decl->loc, "modifier '%s' invalid for local variables", hlsl_debug_modifiers(invalid));
}
if (decl->semantic)
{
hlsl_error(ctx, decl->loc, "semantics are not allowed on local variables");
return false;
}
}
else
{
if (hlsl_get_function(ctx, decl->name))
{
hlsl_error(ctx, decl->loc, "redefinition of '%s'", decl->name);
return false;
}
}
ret = hlsl_add_var(ctx, decl, local);
if (!ret)
{
struct hlsl_ir_var *old = hlsl_get_var(ctx->cur_scope, decl->name);
hlsl_error(ctx, decl->loc, "\"%s\" already declared", decl->name);
hlsl_note(ctx, old->loc, VKD3D_SHADER_LOG_ERROR, "\"%s\" was previously declared here", old->name);
return false;
}
return true;
}
static DWORD add_modifiers(struct hlsl_ctx *ctx, DWORD modifiers, DWORD mod, const struct vkd3d_shader_location loc)
{
if (modifiers & mod)
{
hlsl_error(ctx, loc, "modifier '%s' already specified", hlsl_debug_modifiers(mod));
return modifiers;
}
if ((mod & HLSL_MODIFIERS_MAJORITY_MASK) && (modifiers & HLSL_MODIFIERS_MAJORITY_MASK))
{
hlsl_error(ctx, loc, "more than one matrix majority keyword");
return modifiers;
}
return modifiers | mod;
}
static bool append_conditional_break(struct list *cond_list)
{
struct hlsl_ir_node *condition, *not;
struct hlsl_ir_jump *jump;
struct hlsl_ir_if *iff;
/* E.g. "for (i = 0; ; ++i)". */
if (!list_count(cond_list))
return true;
condition = node_from_list(cond_list);
if (!(not = hlsl_new_unary_expr(HLSL_IR_UNOP_LOGIC_NOT, condition, condition->loc)))
return false;
list_add_tail(cond_list, &not->entry);
if (!(iff = hlsl_new_if(not, condition->loc)))
return false;
list_add_tail(cond_list, &iff->node.entry);
if (!(jump = vkd3d_malloc(sizeof(*jump))))
return false;
init_node(&jump->node, HLSL_IR_JUMP, NULL, condition->loc);
jump->type = HLSL_IR_JUMP_BREAK;
list_add_head(&iff->then_instrs, &jump->node.entry);
return true;
}
enum loop_type
{
LOOP_FOR,
LOOP_WHILE,
LOOP_DO_WHILE
};
static struct list *create_loop(enum loop_type type, struct list *init, struct list *cond,
struct list *iter, struct list *body, struct vkd3d_shader_location loc)
{
struct list *list = NULL;
struct hlsl_ir_loop *loop = NULL;
struct hlsl_ir_if *cond_jump = NULL;
if (!(list = vkd3d_malloc(sizeof(*list))))
goto oom;
list_init(list);
if (init)
list_move_head(list, init);
if (!(loop = vkd3d_calloc(1, sizeof(*loop))))
goto oom;
init_node(&loop->node, HLSL_IR_LOOP, NULL, loc);
list_add_tail(list, &loop->node.entry);
list_init(&loop->body);
if (!append_conditional_break(cond))
goto oom;
if (type != LOOP_DO_WHILE)
list_move_tail(&loop->body, cond);
list_move_tail(&loop->body, body);
if (iter)
list_move_tail(&loop->body, iter);
if (type == LOOP_DO_WHILE)
list_move_tail(&loop->body, cond);
vkd3d_free(init);
vkd3d_free(cond);
vkd3d_free(body);
return list;
oom:
vkd3d_free(loop);
vkd3d_free(cond_jump);
vkd3d_free(list);
hlsl_free_instr_list(init);
hlsl_free_instr_list(cond);
hlsl_free_instr_list(iter);
hlsl_free_instr_list(body);
return NULL;
}
static unsigned int initializer_size(const struct parse_initializer *initializer)
{
unsigned int count = 0, i;
for (i = 0; i < initializer->args_count; ++i)
{
count += hlsl_type_component_count(initializer->args[i]->data_type);
}
TRACE("Initializer size = %u.\n", count);
return count;
}
static void free_parse_initializer(struct parse_initializer *initializer)
{
hlsl_free_instr_list(initializer->instrs);
vkd3d_free(initializer->args);
}
static struct hlsl_ir_swizzle *get_swizzle(struct hlsl_ctx *ctx, struct hlsl_ir_node *value, const char *swizzle,
struct vkd3d_shader_location *loc)
{
unsigned int len = strlen(swizzle), component = 0;
unsigned int i, set, swiz = 0;
bool valid;
if (value->data_type->type == HLSL_CLASS_MATRIX)
{
/* Matrix swizzle */
bool m_swizzle;
unsigned int inc, x, y;
if (len < 3 || swizzle[0] != '_')
return NULL;
m_swizzle = swizzle[1] == 'm';
inc = m_swizzle ? 4 : 3;
if (len % inc || len > inc * 4)
return NULL;
for (i = 0; i < len; i += inc)
{
if (swizzle[i] != '_')
return NULL;
if (m_swizzle)
{
if (swizzle[i + 1] != 'm')
return NULL;
y = swizzle[i + 2] - '0';
x = swizzle[i + 3] - '0';
}
else
{
y = swizzle[i + 1] - '1';
x = swizzle[i + 2] - '1';
}
if (x >= value->data_type->dimx || y >= value->data_type->dimy)
return NULL;
swiz |= (y << 4 | x) << component * 8;
component++;
}
return hlsl_new_swizzle(ctx, swiz, component, value, loc);
}
/* Vector swizzle */
if (len > 4)
return NULL;
for (set = 0; set < 2; ++set)
{
valid = true;
component = 0;
for (i = 0; i < len; ++i)
{
char c[2][4] = {{'x', 'y', 'z', 'w'}, {'r', 'g', 'b', 'a'}};
unsigned int s = 0;
for (s = 0; s < 4; ++s)
{
if (swizzle[i] == c[set][s])
break;
}
if (s == 4)
{
valid = false;
break;
}
if (s >= value->data_type->dimx)
return NULL;
swiz |= s << component * 2;
component++;
}
if (valid)
return hlsl_new_swizzle(ctx, swiz, component, value, loc);
}
return NULL;
}
static struct hlsl_ir_jump *add_return(struct hlsl_ctx *ctx, struct list *instrs,
struct hlsl_ir_node *return_value, struct vkd3d_shader_location loc)
{
struct hlsl_type *return_type = ctx->cur_function->return_type;
struct hlsl_ir_jump *jump;
if (return_value)
{
struct hlsl_ir_assignment *assignment;
if (!(return_value = add_implicit_conversion(ctx, instrs, return_value, return_type, &loc)))
return NULL;
if (!(assignment = hlsl_new_simple_assignment(ctx->cur_function->return_var, return_value)))
return NULL;
list_add_after(&return_value->entry, &assignment->node.entry);
}
else if (!hlsl_type_is_void(return_type))
{
hlsl_error(ctx, loc, "non-void function must return a value");
return NULL;
}
if (!(jump = vkd3d_malloc(sizeof(*jump))))
return NULL;
init_node(&jump->node, HLSL_IR_JUMP, NULL, loc);
jump->type = HLSL_IR_JUMP_RETURN;
list_add_tail(instrs, &jump->node.entry);
return jump;
}
static struct hlsl_ir_load *add_load(struct hlsl_ctx *ctx, struct list *instrs, struct hlsl_ir_node *var_node,
struct hlsl_ir_node *offset, struct hlsl_type *data_type, const struct vkd3d_shader_location loc)
{
struct hlsl_ir_node *add = NULL;
struct hlsl_ir_load *load;
struct hlsl_ir_var *var;
if (var_node->type == HLSL_IR_LOAD)
{
const struct hlsl_deref *src = &hlsl_ir_load(var_node)->src;
var = src->var;
if (src->offset.node)
{
if (!(add = hlsl_new_binary_expr(HLSL_IR_BINOP_ADD, src->offset.node, offset)))
return NULL;
list_add_tail(instrs, &add->entry);
offset = add;
}
}
else
{
struct hlsl_ir_assignment *assign;
char name[27];
sprintf(name, "<deref-%p>", var_node);
if (!(var = hlsl_new_synthetic_var(ctx, name, var_node->data_type, var_node->loc)))
return NULL;
TRACE("Synthesized variable %p for %s node.\n", var, hlsl_node_type_to_string(var_node->type));
if (!(assign = hlsl_new_simple_assignment(var, var_node)))
return NULL;
list_add_tail(instrs, &assign->node.entry);
}
if (!(load = vkd3d_malloc(sizeof(*load))))
return NULL;
init_node(&load->node, HLSL_IR_LOAD, data_type, loc);
load->src.var = var;
hlsl_src_from_node(&load->src.offset, offset);
list_add_tail(instrs, &load->node.entry);
return load;
}
static struct hlsl_ir_load *add_record_load(struct hlsl_ctx *ctx, struct list *instrs, struct hlsl_ir_node *record,
const struct hlsl_struct_field *field, const struct vkd3d_shader_location loc)
{
struct hlsl_ir_constant *c;
if (!(c = hlsl_new_uint_constant(ctx, field->reg_offset * 4, loc)))
return NULL;
list_add_tail(instrs, &c->node.entry);
return add_load(ctx, instrs, record, &c->node, field->type, loc);
}
static struct hlsl_ir_load *add_array_load(struct hlsl_ctx *ctx, struct list *instrs, struct hlsl_ir_node *array,
struct hlsl_ir_node *index, const struct vkd3d_shader_location loc)
{
const struct hlsl_type *expr_type = array->data_type;
struct hlsl_type *data_type;
struct hlsl_ir_constant *c;
struct hlsl_ir_node *mul;
TRACE("Array load from type %s.\n", debug_hlsl_type(expr_type));
if (expr_type->type == HLSL_CLASS_ARRAY)
{
data_type = expr_type->e.array.type;
}
else if (expr_type->type == HLSL_CLASS_MATRIX || expr_type->type == HLSL_CLASS_VECTOR)
{
/* This needs to be lowered now, while we still have type information. */
FIXME("Index of matrix or vector type.\n");
return NULL;
}
else
{
if (expr_type->type == HLSL_CLASS_SCALAR)
hlsl_error(ctx, loc, "array-indexed expression is scalar");
else
hlsl_error(ctx, loc, "expression is not array-indexable");
return NULL;
}
if (!(c = hlsl_new_uint_constant(ctx, data_type->reg_size * 4, loc)))
return NULL;
list_add_tail(instrs, &c->node.entry);
if (!(mul = hlsl_new_binary_expr(HLSL_IR_BINOP_MUL, index, &c->node)))
return NULL;
list_add_tail(instrs, &mul->entry);
index = mul;
return add_load(ctx, instrs, array, index, data_type, loc);
}
static bool add_struct_field(struct list *fields, struct hlsl_struct_field *field)
{
struct hlsl_struct_field *f;
LIST_FOR_EACH_ENTRY(f, fields, struct hlsl_struct_field, entry)
{
if (!strcmp(f->name, field->name))
return false;
}
list_add_tail(fields, &field->entry);
return true;
}
bool hlsl_type_is_row_major(const struct hlsl_type *type)
{
/* Default to column-major if the majority isn't explicitly set, which can
* happen for anonymous nodes. */
return !!(type->modifiers & HLSL_MODIFIER_ROW_MAJOR);
}
static struct hlsl_type *apply_type_modifiers(struct hlsl_ctx *ctx, struct hlsl_type *type,
unsigned int *modifiers, struct vkd3d_shader_location loc)
{
unsigned int default_majority = 0;
struct hlsl_type *new_type;
/* This function is only used for declarations (i.e. variables and struct
* fields), which should inherit the matrix majority. We only explicitly set
* the default majority for declarations—typedefs depend on this—but we
* want to always set it, so that an hlsl_type object is never used to
* represent two different majorities (and thus can be used to store its
* register size, etc.) */
if (!(*modifiers & HLSL_MODIFIERS_MAJORITY_MASK)
&& !(type->modifiers & HLSL_MODIFIERS_MAJORITY_MASK)
&& type->type == HLSL_CLASS_MATRIX)
{
if (ctx->matrix_majority == HLSL_COLUMN_MAJOR)
default_majority = HLSL_MODIFIER_COLUMN_MAJOR;
else
default_majority = HLSL_MODIFIER_ROW_MAJOR;
}
if (!default_majority && !(*modifiers & HLSL_TYPE_MODIFIERS_MASK))
return type;
if (!(new_type = hlsl_type_clone(ctx, type, default_majority)))
return NULL;
new_type->modifiers = add_modifiers(ctx, new_type->modifiers, *modifiers, loc);
*modifiers &= ~HLSL_TYPE_MODIFIERS_MASK;
if (new_type->type == HLSL_CLASS_MATRIX)
new_type->reg_size = hlsl_type_is_row_major(new_type) ? new_type->dimy : new_type->dimx;
return new_type;
}
static struct list *gen_struct_fields(struct hlsl_ctx *ctx, struct hlsl_type *type,
DWORD modifiers, struct list *fields)
{
struct parse_variable_def *v, *v_next;
struct hlsl_struct_field *field;
struct list *list;
if (type->type == HLSL_CLASS_MATRIX)
assert(type->modifiers & HLSL_MODIFIERS_MAJORITY_MASK);
if (!(list = vkd3d_malloc(sizeof(*list))))
return NULL;
list_init(list);
LIST_FOR_EACH_ENTRY_SAFE(v, v_next, fields, struct parse_variable_def, entry)
{
debug_dump_decl(type, 0, v->name, v->loc.line);
if (!(field = vkd3d_calloc(1, sizeof(*field))))
{
vkd3d_free(v);
return list;
}
if (v->array_size)
field->type = hlsl_new_array_type(ctx, type, v->array_size);
else
field->type = type;
field->name = v->name;
field->modifiers = modifiers;
field->semantic = v->semantic;
if (v->initializer.args_count)
{
hlsl_error(ctx, v->loc, "struct field with an initializer.\n");
free_parse_initializer(&v->initializer);
}
list_add_tail(list, &field->entry);
vkd3d_free(v);
}
vkd3d_free(fields);
return list;
}
static bool add_typedef(struct hlsl_ctx *ctx, DWORD modifiers, struct hlsl_type *orig_type, struct list *list)
{
struct parse_variable_def *v, *v_next;
struct hlsl_type *type;
bool ret;
LIST_FOR_EACH_ENTRY_SAFE(v, v_next, list, struct parse_variable_def, entry)
{
if (v->array_size)
type = hlsl_new_array_type(ctx, orig_type, v->array_size);
else
type = hlsl_type_clone(ctx, orig_type, 0);
if (!type)
return false;
vkd3d_free((void *)type->name);
type->name = v->name;
type->modifiers |= modifiers;
if (type->type != HLSL_CLASS_MATRIX)
check_invalid_matrix_modifiers(ctx, type->modifiers, v->loc);
else
type->reg_size = hlsl_type_is_row_major(type) ? type->dimy : type->dimx;
if ((type->modifiers & HLSL_MODIFIER_COLUMN_MAJOR)
&& (type->modifiers & HLSL_MODIFIER_ROW_MAJOR))
hlsl_error(ctx, v->loc, "more than one matrix majority keyword");
ret = hlsl_scope_add_type(ctx->cur_scope, type);
if (!ret)
hlsl_error(ctx, v->loc,
"redefinition of custom type '%s'", v->name);
vkd3d_free(v);
}
vkd3d_free(list);
return true;
}
static bool add_func_parameter(struct hlsl_ctx *ctx, struct list *list,
struct parse_parameter *param, const struct vkd3d_shader_location loc)
{
struct hlsl_ir_var *var;
if (param->type->type == HLSL_CLASS_MATRIX)
assert(param->type->modifiers & HLSL_MODIFIERS_MAJORITY_MASK);
if (!(var = hlsl_new_var(param->name, param->type, loc, param->semantic, param->modifiers, param->reg_reservation)))
return false;
if (!hlsl_add_var(ctx, var, false))
{
hlsl_free_var(var);
return false;
}
list_add_tail(list, &var->param_entry);
return true;
}
static struct hlsl_reg_reservation *parse_reg_reservation(const char *reg_string)
{
enum vkd3d_shader_register_type type;
struct hlsl_reg_reservation *reg_res;
DWORD regnum = 0;
switch (reg_string[0])
{
case 'c':
type = VKD3DSPR_CONST;
break;
case 'i':
type = VKD3DSPR_CONSTINT;
break;
case 'b':
type = VKD3DSPR_CONSTBOOL;
break;
case 's':
type = VKD3DSPR_SAMPLER;
break;
default:
FIXME("Unsupported register type.\n");
return NULL;
}
if (!sscanf(reg_string + 1, "%u", &regnum))
{
FIXME("Unsupported register reservation syntax.\n");
return NULL;
}
if (!(reg_res = vkd3d_malloc(sizeof(*reg_res))))
return NULL;
reg_res->type = type;
reg_res->regnum = regnum;
return reg_res;
}
static const struct hlsl_ir_function_decl *get_overloaded_func(struct rb_tree *funcs, char *name,
struct list *params, bool exact_signature)
{
struct hlsl_ir_function *func;
struct rb_entry *entry;
entry = rb_get(funcs, name);
if (entry)
{
func = RB_ENTRY_VALUE(entry, struct hlsl_ir_function, entry);
entry = rb_get(&func->overloads, params);
if (!entry)
{
if (!exact_signature)
FIXME("No exact match, search for a compatible overloaded function (if any).\n");
return NULL;
}
return RB_ENTRY_VALUE(entry, struct hlsl_ir_function_decl, entry);
}
return NULL;
}
static struct hlsl_ir_function_decl *get_func_entry(struct hlsl_ctx *ctx, const char *name)
{
struct hlsl_ir_function_decl *decl;
struct hlsl_ir_function *func;
struct rb_entry *entry;
if ((entry = rb_get(&ctx->functions, name)))
{
func = RB_ENTRY_VALUE(entry, struct hlsl_ir_function, entry);
RB_FOR_EACH_ENTRY(decl, &func->overloads, struct hlsl_ir_function_decl, entry)
return decl;
}
return NULL;
}
static struct list *make_list(struct hlsl_ir_node *node)
{
struct list *list;
if (!(list = vkd3d_malloc(sizeof(*list))))
{
hlsl_free_instr(node);
return NULL;
}
list_init(list);
list_add_tail(list, &node->entry);
return list;
}
static unsigned int evaluate_array_dimension(struct hlsl_ir_node *node)
{
if (node->data_type->type != HLSL_CLASS_SCALAR)
return 0;
switch (node->type)
{
case HLSL_IR_CONSTANT:
{
struct hlsl_ir_constant *constant = hlsl_ir_constant(node);
switch (constant->node.data_type->base_type)
{
case HLSL_TYPE_UINT:
return constant->value.u[0];
case HLSL_TYPE_INT:
return constant->value.i[0];
case HLSL_TYPE_FLOAT:
return constant->value.f[0];
case HLSL_TYPE_DOUBLE:
return constant->value.d[0];
case HLSL_TYPE_BOOL:
return constant->value.b[0];
default:
WARN("Invalid type %s.\n", hlsl_base_type_to_string(constant->node.data_type));
return 0;
}
}
case HLSL_IR_EXPR:
case HLSL_IR_LOAD:
case HLSL_IR_SWIZZLE:
FIXME("Unhandled type %s.\n", hlsl_node_type_to_string(node->type));
return 0;
case HLSL_IR_ASSIGNMENT:
default:
WARN("Invalid node type %s.\n", hlsl_node_type_to_string(node->type));
return 0;
}
}
static bool expr_compatible_data_types(struct hlsl_type *t1, struct hlsl_type *t2)
{
if (t1->base_type > HLSL_TYPE_LAST_SCALAR || t2->base_type > HLSL_TYPE_LAST_SCALAR)
return false;
/* Scalar vars can be converted to pretty much everything */
if ((t1->dimx == 1 && t1->dimy == 1) || (t2->dimx == 1 && t2->dimy == 1))
return true;
if (t1->type == HLSL_CLASS_VECTOR && t2->type == HLSL_CLASS_VECTOR)
return true;
if (t1->type == HLSL_CLASS_MATRIX || t2->type == HLSL_CLASS_MATRIX)
{
/* Matrix-vector conversion is apparently allowed if either they have the same components
count or the matrix is nx1 or 1xn */
if (t1->type == HLSL_CLASS_VECTOR || t2->type == HLSL_CLASS_VECTOR)
{
if (hlsl_type_component_count(t1) == hlsl_type_component_count(t2))
return true;
return (t1->type == HLSL_CLASS_MATRIX && (t1->dimx == 1 || t1->dimy == 1))
|| (t2->type == HLSL_CLASS_MATRIX && (t2->dimx == 1 || t2->dimy == 1));
}
/* Both matrices */
if ((t1->dimx >= t2->dimx && t1->dimy >= t2->dimy)
|| (t1->dimx <= t2->dimx && t1->dimy <= t2->dimy))
return true;
}
return false;
}
static enum hlsl_base_type expr_common_base_type(enum hlsl_base_type t1, enum hlsl_base_type t2)
{
static const enum hlsl_base_type types[] =
{
HLSL_TYPE_BOOL,
HLSL_TYPE_INT,
HLSL_TYPE_UINT,
HLSL_TYPE_HALF,
HLSL_TYPE_FLOAT,
HLSL_TYPE_DOUBLE,
};
int t1_idx = -1, t2_idx = -1, i;
for (i = 0; i < ARRAY_SIZE(types); ++i)
{
/* Always convert away from HLSL_TYPE_HALF */
if (t1 == types[i])
t1_idx = t1 == HLSL_TYPE_HALF ? i + 1 : i;
if (t2 == types[i])
t2_idx = t2 == HLSL_TYPE_HALF ? i + 1 : i;
if (t1_idx != -1 && t2_idx != -1)
break;
}
if (t1_idx == -1 || t2_idx == -1)
{
FIXME("Unexpected base type.\n");
return HLSL_TYPE_FLOAT;
}
return t1_idx >= t2_idx ? t1 : t2;
}
static struct hlsl_type *expr_common_type(struct hlsl_ctx *ctx, struct hlsl_type *t1, struct hlsl_type *t2,
struct vkd3d_shader_location *loc)
{
enum hlsl_type_class type;
enum hlsl_base_type base;
unsigned int dimx, dimy;
if (t1->type > HLSL_CLASS_LAST_NUMERIC || t2->type > HLSL_CLASS_LAST_NUMERIC)
{
hlsl_error(ctx, *loc, "non scalar/vector/matrix data type in expression");
return NULL;
}
if (hlsl_type_compare(t1, t2))
return t1;
if (!expr_compatible_data_types(t1, t2))
{
hlsl_error(ctx, *loc, "expression data types are incompatible");
return NULL;
}
if (t1->base_type == t2->base_type)
base = t1->base_type;
else
base = expr_common_base_type(t1->base_type, t2->base_type);
if (t1->dimx == 1 && t1->dimy == 1)
{
type = t2->type;
dimx = t2->dimx;
dimy = t2->dimy;
}
else if (t2->dimx == 1 && t2->dimy == 1)
{
type = t1->type;
dimx = t1->dimx;
dimy = t1->dimy;
}
else if (t1->type == HLSL_CLASS_MATRIX && t2->type == HLSL_CLASS_MATRIX)
{
type = HLSL_CLASS_MATRIX;
dimx = min(t1->dimx, t2->dimx);
dimy = min(t1->dimy, t2->dimy);
}
else
{
/* Two vectors or a vector and a matrix (matrix must be 1xn or nx1) */
unsigned int max_dim_1, max_dim_2;
max_dim_1 = max(t1->dimx, t1->dimy);
max_dim_2 = max(t2->dimx, t2->dimy);
if (t1->dimx * t1->dimy == t2->dimx * t2->dimy)
{
type = HLSL_CLASS_VECTOR;
dimx = max(t1->dimx, t2->dimx);
dimy = 1;
}
else if (max_dim_1 <= max_dim_2)
{
type = t1->type;
if (type == HLSL_CLASS_VECTOR)
{
dimx = max_dim_1;
dimy = 1;
}
else
{
dimx = t1->dimx;
dimy = t1->dimy;
}
}
else
{
type = t2->type;
if (type == HLSL_CLASS_VECTOR)
{
dimx = max_dim_2;
dimy = 1;
}
else
{
dimx = t2->dimx;
dimy = t2->dimy;
}
}
}
if (type == HLSL_CLASS_SCALAR)
return ctx->builtin_types.scalar[base];
if (type == HLSL_CLASS_VECTOR)
return ctx->builtin_types.vector[base][dimx - 1];
return hlsl_new_type(ctx, NULL, type, base, dimx, dimy);
}
static struct hlsl_ir_expr *add_expr(struct hlsl_ctx *ctx, struct list *instrs,
enum hlsl_ir_expr_op op, struct hlsl_ir_node *operands[3], struct vkd3d_shader_location *loc)
{
struct hlsl_ir_expr *expr;
struct hlsl_type *type;
unsigned int i;
type = operands[0]->data_type;
for (i = 1; i <= 2; ++i)
{
if (!operands[i])
break;
type = expr_common_type(ctx, type, operands[i]->data_type, loc);
if (!type)
return NULL;
}
for (i = 0; i <= 2; ++i)
{
struct hlsl_ir_expr *cast;
if (!operands[i])
break;
if (hlsl_type_compare(operands[i]->data_type, type))
continue;
TRACE("Implicitly converting %s into %s in an expression.\n", debug_hlsl_type(operands[i]->data_type), debug_hlsl_type(type));
if (operands[i]->data_type->dimx * operands[i]->data_type->dimy != 1
&& operands[i]->data_type->dimx * operands[i]->data_type->dimy != type->dimx * type->dimy)
{
hlsl_warning(ctx, operands[i]->loc, "implicit truncation of vector/matrix type");
}
if (!(cast = hlsl_new_cast(operands[i], type, &operands[i]->loc)))
return NULL;
list_add_after(&operands[i]->entry, &cast->node.entry);
operands[i] = &cast->node;
}
if (!(expr = vkd3d_calloc(1, sizeof(*expr))))
return NULL;
init_node(&expr->node, HLSL_IR_EXPR, type, *loc);
expr->op = op;
for (i = 0; i <= 2; ++i)
hlsl_src_from_node(&expr->operands[i], operands[i]);
list_add_tail(instrs, &expr->node.entry);
return expr;
}
static struct list *append_unop(struct list *list, struct hlsl_ir_node *node)
{
list_add_tail(list, &node->entry);
return list;
}
static struct list *add_binary_expr(struct hlsl_ctx *ctx, struct list *list1, struct list *list2,
enum hlsl_ir_expr_op op, struct vkd3d_shader_location loc)
{
struct hlsl_ir_node *args[3] = {node_from_list(list1), node_from_list(list2)};
list_move_tail(list1, list2);
vkd3d_free(list2);
add_expr(ctx, list1, op, args, &loc);
return list1;
}
static enum hlsl_ir_expr_op op_from_assignment(enum parse_assign_op op)
{
static const enum hlsl_ir_expr_op ops[] =
{
0,
HLSL_IR_BINOP_ADD,
HLSL_IR_BINOP_SUB,
HLSL_IR_BINOP_MUL,
HLSL_IR_BINOP_DIV,
HLSL_IR_BINOP_MOD,
HLSL_IR_BINOP_LSHIFT,
HLSL_IR_BINOP_RSHIFT,
HLSL_IR_BINOP_BIT_AND,
HLSL_IR_BINOP_BIT_OR,
HLSL_IR_BINOP_BIT_XOR,
};
return ops[op];
}
static bool invert_swizzle(unsigned int *swizzle, unsigned int *writemask, unsigned int *ret_width)
{
unsigned int i, j, bit = 0, inverted = 0, width, new_writemask = 0, new_swizzle = 0;
/* Apply the writemask to the swizzle to get a new writemask and swizzle. */
for (i = 0; i < 4; ++i)
{
if (*writemask & (1 << i))
{
unsigned int s = (*swizzle >> (i * 2)) & 3;
new_swizzle |= s << (bit++ * 2);
if (new_writemask & (1 << s))
return false;
new_writemask |= 1 << s;
}
}
width = bit;
/* Invert the swizzle. */
bit = 0;
for (i = 0; i < 4; ++i)
{
for (j = 0; j < width; ++j)
{
unsigned int s = (new_swizzle >> (j * 2)) & 3;
if (s == i)
inverted |= j << (bit++ * 2);
}
}
*swizzle = inverted;
*writemask = new_writemask;
*ret_width = width;
return true;
}
static struct hlsl_ir_node *add_assignment(struct hlsl_ctx *ctx, struct list *instrs, struct hlsl_ir_node *lhs,
enum parse_assign_op assign_op, struct hlsl_ir_node *rhs)
{
struct hlsl_ir_assignment *assign;
struct hlsl_type *lhs_type;
DWORD writemask = 0;
lhs_type = lhs->data_type;
if (lhs_type->type <= HLSL_CLASS_LAST_NUMERIC)
{
writemask = (1 << lhs_type->dimx) - 1;
if (!(rhs = add_implicit_conversion(ctx, instrs, rhs, lhs_type, &rhs->loc)))
return NULL;
}
if (!(assign = vkd3d_malloc(sizeof(*assign))))
return NULL;
while (lhs->type != HLSL_IR_LOAD)
{
struct hlsl_ir_node *lhs_inner;
if (lhs->type == HLSL_IR_EXPR && hlsl_ir_expr(lhs)->op == HLSL_IR_UNOP_CAST)
{
FIXME("Cast on the lhs.\n");
vkd3d_free(assign);
return NULL;
}
else if (lhs->type == HLSL_IR_SWIZZLE)
{
struct hlsl_ir_swizzle *swizzle = hlsl_ir_swizzle(lhs);
const struct hlsl_type *swizzle_type = swizzle->node.data_type;
unsigned int width;
if (lhs->data_type->type == HLSL_CLASS_MATRIX)
FIXME("Assignments with writemasks and matrices on lhs are not supported yet.\n");
lhs_inner = swizzle->val.node;
hlsl_src_remove(&swizzle->val);
list_remove(&lhs->entry);
list_add_after(&rhs->entry, &lhs->entry);
hlsl_src_from_node(&swizzle->val, rhs);
if (!invert_swizzle(&swizzle->swizzle, &writemask, &width))
{
hlsl_error(ctx, lhs->loc, "invalid writemask");
vkd3d_free(assign);
return NULL;
}
assert(swizzle_type->type == HLSL_CLASS_VECTOR);
if (swizzle_type->dimx != width)
swizzle->node.data_type = ctx->builtin_types.vector[swizzle_type->base_type][width - 1];
rhs = &swizzle->node;
}
else
{
hlsl_error(ctx, lhs->loc, "invalid lvalue");
vkd3d_free(assign);
return NULL;
}
lhs = lhs_inner;
}
init_node(&assign->node, HLSL_IR_ASSIGNMENT, lhs_type, lhs->loc);
assign->writemask = writemask;
assign->lhs.var = hlsl_ir_load(lhs)->src.var;
hlsl_src_from_node(&assign->lhs.offset, hlsl_ir_load(lhs)->src.offset.node);
if (assign_op != ASSIGN_OP_ASSIGN)
{
enum hlsl_ir_expr_op op = op_from_assignment(assign_op);
struct hlsl_ir_node *expr;
TRACE("Adding an expression for the compound assignment.\n");
expr = hlsl_new_binary_expr(op, lhs, rhs);
list_add_after(&rhs->entry, &expr->entry);
rhs = expr;
}
hlsl_src_from_node(&assign->rhs, rhs);
list_add_tail(instrs, &assign->node.entry);
return &assign->node;
}
static void struct_var_initializer(struct hlsl_ctx *ctx, struct list *list, struct hlsl_ir_var *var,
struct parse_initializer *initializer)
{
struct hlsl_type *type = var->data_type;
struct hlsl_struct_field *field;
unsigned int i = 0;
if (initializer_size(initializer) != hlsl_type_component_count(type))
{
hlsl_error(ctx, var->loc, "structure initializer mismatch");
free_parse_initializer(initializer);
return;
}
list_move_tail(list, initializer->instrs);
vkd3d_free(initializer->instrs);
LIST_FOR_EACH_ENTRY(field, type->e.elements, struct hlsl_struct_field, entry)
{
struct hlsl_ir_node *node = initializer->args[i];
struct hlsl_ir_assignment *assign;
struct hlsl_ir_constant *c;
if (i++ >= initializer->args_count)
break;
if (hlsl_type_component_count(field->type) == hlsl_type_component_count(node->data_type))
{
if (!(c = hlsl_new_uint_constant(ctx, field->reg_offset * 4, node->loc)))
break;
list_add_tail(list, &c->node.entry);
if (!(assign = hlsl_new_assignment(var, &c->node, node, 0, node->loc)))
break;
list_add_tail(list, &assign->node.entry);
}
else
FIXME("Initializing with \"mismatched\" fields is not supported yet.\n");
}
vkd3d_free(initializer->args);
}
static void free_parse_variable_def(struct parse_variable_def *v)
{
free_parse_initializer(&v->initializer);
vkd3d_free(v->name);
vkd3d_free((void *)v->semantic);
vkd3d_free(v->reg_reservation);
vkd3d_free(v);
}
static struct list *declare_vars(struct hlsl_ctx *ctx, struct hlsl_type *basic_type,
DWORD modifiers, struct list *var_list)
{
struct parse_variable_def *v, *v_next;
struct list *statements_list;
struct hlsl_ir_var *var;
struct hlsl_type *type;
bool ret, local = true;
if (basic_type->type == HLSL_CLASS_MATRIX)
assert(basic_type->modifiers & HLSL_MODIFIERS_MAJORITY_MASK);
if (!(statements_list = vkd3d_malloc(sizeof(*statements_list))))
{
LIST_FOR_EACH_ENTRY_SAFE(v, v_next, var_list, struct parse_variable_def, entry)
free_parse_variable_def(v);
vkd3d_free(var_list);
return NULL;
}
list_init(statements_list);
if (!var_list)
return statements_list;
LIST_FOR_EACH_ENTRY_SAFE(v, v_next, var_list, struct parse_variable_def, entry)
{
if (v->array_size)
type = hlsl_new_array_type(ctx, basic_type, v->array_size);
else
type = basic_type;
if (!(var = hlsl_new_var(v->name, type, v->loc, v->semantic, modifiers, v->reg_reservation)))
{
free_parse_variable_def(v);
continue;
}
debug_dump_decl(type, modifiers, v->name, v->loc.line);
if (ctx->cur_scope == ctx->globals)
{
var->modifiers |= HLSL_STORAGE_UNIFORM;
local = false;
}
if (type->modifiers & HLSL_MODIFIER_CONST && !(var->modifiers & HLSL_STORAGE_UNIFORM) && !v->initializer.args_count)
{
hlsl_error(ctx, v->loc, "const variable without initializer");
hlsl_free_var(var);
vkd3d_free(v);
continue;
}
ret = declare_variable(ctx, var, local);
if (!ret)
{
hlsl_free_var(var);
vkd3d_free(v);
continue;
}
TRACE("Declared variable %s.\n", var->name);
if (v->initializer.args_count)
{
unsigned int size = initializer_size(&v->initializer);
struct hlsl_ir_load *load;
TRACE("Variable with initializer.\n");
if (type->type <= HLSL_CLASS_LAST_NUMERIC
&& type->dimx * type->dimy != size && size != 1)
{
if (size < type->dimx * type->dimy)
{
hlsl_error(ctx, v->loc,
"'%s' initializer does not match", v->name);
free_parse_initializer(&v->initializer);
vkd3d_free(v);
continue;
}
}
if ((type->type == HLSL_CLASS_STRUCT || type->type == HLSL_CLASS_ARRAY)
&& hlsl_type_component_count(type) != size)
{
hlsl_error(ctx, v->loc,
"'%s' initializer does not match", v->name);
free_parse_initializer(&v->initializer);
vkd3d_free(v);
continue;
}
if (type->type == HLSL_CLASS_STRUCT)
{
struct_var_initializer(ctx, statements_list, var, &v->initializer);
vkd3d_free(v);
continue;
}
if (type->type > HLSL_CLASS_LAST_NUMERIC)
{
FIXME("Initializers for non scalar/struct variables not supported yet.\n");
free_parse_initializer(&v->initializer);
vkd3d_free(v);
continue;
}
if (v->array_size > 0)
{
FIXME("Initializing arrays is not supported yet.\n");
free_parse_initializer(&v->initializer);
vkd3d_free(v);
continue;
}
if (v->initializer.args_count > 1)
{
FIXME("Complex initializers are not supported yet.\n");
free_parse_initializer(&v->initializer);
vkd3d_free(v);
continue;
}
load = hlsl_new_var_load(var, var->loc);
list_add_tail(v->initializer.instrs, &load->node.entry);
add_assignment(ctx, v->initializer.instrs, &load->node, ASSIGN_OP_ASSIGN, v->initializer.args[0]);
vkd3d_free(v->initializer.args);
if (modifiers & HLSL_STORAGE_STATIC)
list_move_tail(&ctx->static_initializers, v->initializer.instrs);
else
list_move_tail(statements_list, v->initializer.instrs);
vkd3d_free(v->initializer.instrs);
}
vkd3d_free(v);
}
vkd3d_free(var_list);
return statements_list;
}
}
%locations
%define parse.error verbose
%define api.prefix {hlsl_yy}
%define api.pure full
%expect 1
%lex-param {yyscan_t scanner}
%parse-param {void *scanner}
%parse-param {struct hlsl_ctx *ctx}
%union
{
struct hlsl_type *type;
INT intval;
FLOAT floatval;
BOOL boolval;
char *name;
DWORD modifiers;
struct hlsl_ir_node *instr;
struct list *list;
struct parse_function function;
struct parse_parameter parameter;
struct parse_initializer initializer;
struct parse_variable_def *variable_def;
struct parse_if_body if_body;
enum parse_unary_op unary_op;
enum parse_assign_op assign_op;
struct hlsl_reg_reservation *reg_reservation;
struct parse_colon_attribute colon_attribute;
}
%token KW_BLENDSTATE
%token KW_BREAK
%token KW_BUFFER
%token KW_CBUFFER
%token KW_COLUMN_MAJOR
%token KW_COMPILE
%token KW_CONST
%token KW_CONTINUE
%token KW_DEPTHSTENCILSTATE
%token KW_DEPTHSTENCILVIEW
%token KW_DISCARD
%token KW_DO
%token KW_DOUBLE
%token KW_ELSE
%token KW_EXTERN
%token KW_FALSE
%token KW_FOR
%token KW_GEOMETRYSHADER
%token KW_GROUPSHARED
%token KW_IF
%token KW_IN
%token KW_INLINE
%token KW_INOUT
%token KW_MATRIX
%token KW_NAMESPACE
%token KW_NOINTERPOLATION
%token KW_OUT
%token KW_PASS
%token KW_PIXELSHADER
%token KW_PRECISE
%token KW_RASTERIZERSTATE
%token KW_RENDERTARGETVIEW
%token KW_RETURN
%token KW_REGISTER
%token KW_ROW_MAJOR
%token KW_SAMPLER
%token KW_SAMPLER1D
%token KW_SAMPLER2D
%token KW_SAMPLER3D
%token KW_SAMPLERCUBE
%token KW_SAMPLER_STATE
%token KW_SAMPLERCOMPARISONSTATE
%token KW_SHARED
%token KW_STATEBLOCK
%token KW_STATEBLOCK_STATE
%token KW_STATIC
%token KW_STRING
%token KW_STRUCT
%token KW_SWITCH
%token KW_TBUFFER
%token KW_TECHNIQUE
%token KW_TECHNIQUE10
%token KW_TEXTURE
%token KW_TEXTURE1D
%token KW_TEXTURE1DARRAY
%token KW_TEXTURE2D
%token KW_TEXTURE2DARRAY
%token KW_TEXTURE2DMS
%token KW_TEXTURE2DMSARRAY
%token KW_TEXTURE3D
%token KW_TEXTURE3DARRAY
%token KW_TEXTURECUBE
%token KW_TRUE
%token KW_TYPEDEF
%token KW_UNIFORM
%token KW_VECTOR
%token KW_VERTEXSHADER
%token KW_VOID
%token KW_VOLATILE
%token KW_WHILE
%token OP_INC
%token OP_DEC
%token OP_AND
%token OP_OR
%token OP_EQ
%token OP_LEFTSHIFT
%token OP_LEFTSHIFTASSIGN
%token OP_RIGHTSHIFT
%token OP_RIGHTSHIFTASSIGN
%token OP_ELLIPSIS
%token OP_LE
%token OP_GE
%token OP_NE
%token OP_ADDASSIGN
%token OP_SUBASSIGN
%token OP_MULASSIGN
%token OP_DIVASSIGN
%token OP_MODASSIGN
%token OP_ANDASSIGN
%token OP_ORASSIGN
%token OP_XORASSIGN
%token OP_UNKNOWN1
%token OP_UNKNOWN2
%token OP_UNKNOWN3
%token OP_UNKNOWN4
%token <floatval> C_FLOAT
%token <intval> C_INTEGER
%token <intval> PRE_LINE
%type <list> add_expr
%type <list> assignment_expr
%type <list> bitand_expr
%type <list> bitor_expr
%type <list> bitxor_expr
%type <list> compound_statement
%type <list> conditional_expr
%type <list> declaration
%type <list> declaration_statement
%type <list> equality_expr
%type <list> expr
%type <list> expr_statement
%type <list> field
%type <list> fields_list
%type <list> initializer_expr
%type <list> jump_statement
%type <list> logicand_expr
%type <list> logicor_expr
%type <list> loop_statement
%type <list> mul_expr
%type <list> param_list
%type <list> parameters
%type <list> postfix_expr
%type <list> primary_expr
%type <list> relational_expr
%type <list> selection_statement
%type <list> shift_expr
%type <list> statement
%type <list> statement_list
%type <list> struct_declaration
%type <list> type_specs
%type <list> unary_expr
%type <list> variables_def
%type <list> variables_def_optional
%token <name> VAR_IDENTIFIER
%token <name> NEW_IDENTIFIER
%token <name> STRING
%token <name> TYPE_IDENTIFIER
%type <assign_op> assign_op
%type <boolval> boolean
%type <colon_attribute> colon_attribute
%type <function> func_declaration
%type <function> func_prototype
%type <initializer> complex_initializer
%type <initializer> initializer_expr_list
%type <if_body> if_body
%type <intval> array
%type <modifiers> input_mod
%type <modifiers> input_mods
%type <modifiers> var_modifiers
%type <name> any_identifier
%type <name> semantic
%type <name> var_identifier
%type <parameter> parameter
%type <reg_reservation> register_opt
%type <type> base_type
%type <type> field_type
%type <type> named_struct_spec
%type <type> unnamed_struct_spec
%type <type> struct_spec
%type <type> type
%type <type> typedef_type
%type <unary_op> unary_op
%type <variable_def> type_spec
%type <variable_def> variable_def
%%
hlsl_prog:
/* empty */
| hlsl_prog func_declaration
{
const struct hlsl_ir_function_decl *decl;
decl = get_overloaded_func(&ctx->functions, $2.name, $2.decl->parameters, true);
if (decl && !decl->func->intrinsic)
{
if (decl->body && $2.decl->body)
{
hlsl_error(ctx, $2.decl->loc,
"redefinition of function %s", debugstr_a($2.name));
YYABORT;
}
else if (!hlsl_type_compare(decl->return_type, $2.decl->return_type))
{
hlsl_error(ctx, $2.decl->loc,
"redefining function %s with a different return type",
debugstr_a($2.name));
hlsl_note(ctx, decl->loc, VKD3D_SHADER_LOG_ERROR,
"%s previously declared here",
debugstr_a($2.name));
YYABORT;
}
}
if (hlsl_type_is_void($2.decl->return_type) && $2.decl->semantic)
{
hlsl_error(ctx, $2.decl->loc,
"void function with a semantic");
}
TRACE("Adding function '%s' to the function list.\n", $2.name);
hlsl_add_function(&ctx->functions, $2.name, $2.decl, false);
}
| hlsl_prog declaration_statement
{
TRACE("Declaration statement parsed.\n");
if (!list_empty($2))
FIXME("Uniform initializer.\n");
hlsl_free_instr_list($2);
}
| hlsl_prog preproc_directive
| hlsl_prog ';'
{
TRACE("Skipping stray semicolon.\n");
}
preproc_directive:
PRE_LINE STRING
{
const char **new_array = NULL;
TRACE("Updating line information to file %s, line %u.\n", debugstr_a($2), $1);
ctx->location.line = $1;
if (strcmp($2, ctx->location.source_name))
new_array = vkd3d_realloc(ctx->source_files,
sizeof(*ctx->source_files) * (ctx->source_files_count + 1));
if (new_array)
{
ctx->source_files = new_array;
ctx->source_files[ctx->source_files_count++] = $2;
ctx->location.source_name = $2;
}
else
{
vkd3d_free($2);
}
}
struct_declaration:
var_modifiers struct_spec variables_def_optional ';'
{
struct hlsl_type *type;
DWORD modifiers = $1;
if (!$3)
{
if (!$2->name)
{
hlsl_error(ctx, @2,
"anonymous struct declaration with no variables");
}
if (modifiers)
{
hlsl_error(ctx, @1,
"modifier not allowed on struct type declaration");
}
}
if (!(type = apply_type_modifiers(ctx, $2, &modifiers, @1)))
YYABORT;
$$ = declare_vars(ctx, type, modifiers, $3);
}
struct_spec:
named_struct_spec
| unnamed_struct_spec
named_struct_spec:
KW_STRUCT any_identifier '{' fields_list '}'
{
bool ret;
TRACE("Structure %s declaration.\n", debugstr_a($2));
$$ = hlsl_new_struct_type(ctx, $2, $4);
if (hlsl_get_var(ctx->cur_scope, $2))
{
hlsl_error(ctx, @2, "redefinition of '%s'", $2);
YYABORT;
}
ret = hlsl_scope_add_type(ctx->cur_scope, $$);
if (!ret)
{
hlsl_error(ctx, @2, "redefinition of struct '%s'", $2);
YYABORT;
}
}
unnamed_struct_spec:
KW_STRUCT '{' fields_list '}'
{
TRACE("Anonymous structure declaration.\n");
$$ = hlsl_new_struct_type(ctx, NULL, $3);
}
any_identifier:
VAR_IDENTIFIER
| TYPE_IDENTIFIER
| NEW_IDENTIFIER
fields_list:
/* empty */
{
$$ = vkd3d_malloc(sizeof(*$$));
list_init($$);
}
| fields_list field
{
bool ret;
struct hlsl_struct_field *field, *next;
$$ = $1;
LIST_FOR_EACH_ENTRY_SAFE(field, next, $2, struct hlsl_struct_field, entry)
{
ret = add_struct_field($$, field);
if (ret == false)
{
hlsl_error(ctx, @2, "redefinition of '%s'", field->name);
vkd3d_free(field);
}
}
vkd3d_free($2);
}
field_type:
type
| unnamed_struct_spec
field:
var_modifiers field_type variables_def ';'
{
struct hlsl_type *type;
DWORD modifiers = $1;
if (!(type = apply_type_modifiers(ctx, $2, &modifiers, @1)))
YYABORT;
$$ = gen_struct_fields(ctx, type, modifiers, $3);
}
func_declaration:
func_prototype compound_statement
{
TRACE("Function %s parsed.\n", $1.name);
$$ = $1;
$$.decl->body = $2;
hlsl_pop_scope(ctx);
}
| func_prototype ';'
{
TRACE("Function prototype for %s.\n", $1.name);
$$ = $1;
hlsl_pop_scope(ctx);
}
func_prototype:
/* var_modifiers is necessary to avoid shift/reduce conflicts. */
var_modifiers type var_identifier '(' parameters ')' colon_attribute
{
if ($1)
{
hlsl_error(ctx, @1, "unexpected modifiers on a function");
YYABORT;
}
if (hlsl_get_var(ctx->globals, $3))
{
hlsl_error(ctx, @3, "redefinition of '%s'\n", $3);
YYABORT;
}
if (hlsl_type_is_void($2) && $7.semantic)
{
hlsl_error(ctx, @7, "void function with a semantic");
}
if ($7.reg_reservation)
{
FIXME("Unexpected register reservation for a function.\n");
vkd3d_free($7.reg_reservation);
}
if (!($$.decl = hlsl_new_func_decl(ctx, $2, $5, $7.semantic, @3)))
YYABORT;
$$.name = $3;
ctx->cur_function = $$.decl;
}
compound_statement:
'{' '}'
{
$$ = vkd3d_malloc(sizeof(*$$));
list_init($$);
}
| '{' scope_start statement_list '}'
{
hlsl_pop_scope(ctx);
$$ = $3;
}
scope_start:
/* empty */
{
hlsl_push_scope(ctx);
}
var_identifier:
VAR_IDENTIFIER
| NEW_IDENTIFIER
colon_attribute:
/* empty */
{
$$.semantic = NULL;
$$.reg_reservation = NULL;
}
| semantic
{
$$.semantic = $1;
$$.reg_reservation = NULL;
}
| register_opt
{
$$.semantic = NULL;
$$.reg_reservation = $1;
}
semantic:
':' any_identifier
{
$$ = $2;
}
/* FIXME: Writemasks */
register_opt:
':' KW_REGISTER '(' any_identifier ')'
{
$$ = parse_reg_reservation($4);
vkd3d_free($4);
}
| ':' KW_REGISTER '(' any_identifier ',' any_identifier ')'
{
FIXME("Ignoring shader target %s in a register reservation.\n", debugstr_a($4));
vkd3d_free($4);
$$ = parse_reg_reservation($6);
vkd3d_free($6);
}
parameters:
scope_start
{
$$ = vkd3d_malloc(sizeof(*$$));
list_init($$);
}
| scope_start param_list
{
$$ = $2;
}
param_list:
parameter
{
$$ = vkd3d_malloc(sizeof(*$$));
list_init($$);
if (!add_func_parameter(ctx, $$, &$1, @1))
{
ERR("Error adding function parameter %s.\n", $1.name);
ctx->failed = true;
YYABORT;
}
}
| param_list ',' parameter
{
$$ = $1;
if (!add_func_parameter(ctx, $$, &$3, @3))
{
hlsl_error(ctx, @3, "duplicate parameter %s", $3.name);
YYABORT;
}
}
parameter:
input_mods var_modifiers type any_identifier colon_attribute
{
struct hlsl_type *type;
DWORD modifiers = $2;
if (!(type = apply_type_modifiers(ctx, $3, &modifiers, @2)))
YYABORT;
$$.modifiers = $1 ? $1 : HLSL_STORAGE_IN;
$$.modifiers |= modifiers;
$$.type = type;
$$.name = $4;
$$.semantic = $5.semantic;
$$.reg_reservation = $5.reg_reservation;
}
input_mods:
/* empty */
{
$$ = 0;
}
| input_mods input_mod
{
if ($1 & $2)
{
hlsl_error(ctx, @2,
"duplicate input-output modifiers");
YYABORT;
}
$$ = $1 | $2;
}
input_mod:
KW_IN
{
$$ = HLSL_STORAGE_IN;
}
| KW_OUT
{
$$ = HLSL_STORAGE_OUT;
}
| KW_INOUT
{
$$ = HLSL_STORAGE_IN | HLSL_STORAGE_OUT;
}
type:
base_type
{
$$ = $1;
}
| KW_VECTOR '<' base_type ',' C_INTEGER '>'
{
if ($3->type != HLSL_CLASS_SCALAR)
{
hlsl_error(ctx, @3,
"vectors of non-scalar types are not allowed\n");
YYABORT;
}
if ($5 < 1 || $5 > 4)
{
hlsl_error(ctx, @5,
"vector size must be between 1 and 4\n");
YYABORT;
}
$$ = hlsl_new_type(ctx, NULL, HLSL_CLASS_VECTOR, $3->base_type, $5, 1);
}
| KW_MATRIX '<' base_type ',' C_INTEGER ',' C_INTEGER '>'
{
if ($3->type != HLSL_CLASS_SCALAR)
{
hlsl_error(ctx, @3,
"matrices of non-scalar types are not allowed\n");
YYABORT;
}
if ($5 < 1 || $5 > 4)
{
hlsl_error(ctx, @5,
"matrix row count must be between 1 and 4\n");
YYABORT;
}
if ($7 < 1 || $7 > 4)
{
hlsl_error(ctx, @7,
"matrix column count must be between 1 and 4\n");
YYABORT;
}
$$ = hlsl_new_type(ctx, NULL, HLSL_CLASS_MATRIX, $3->base_type, $7, $5);
}
base_type:
KW_VOID
{
$$ = ctx->builtin_types.Void;
}
| KW_SAMPLER
{
$$ = ctx->builtin_types.sampler[HLSL_SAMPLER_DIM_GENERIC];
}
| KW_SAMPLER1D
{
$$ = ctx->builtin_types.sampler[HLSL_SAMPLER_DIM_1D];
}
| KW_SAMPLER2D
{
$$ = ctx->builtin_types.sampler[HLSL_SAMPLER_DIM_2D];
}
| KW_SAMPLER3D
{
$$ = ctx->builtin_types.sampler[HLSL_SAMPLER_DIM_3D];
}
| KW_SAMPLERCUBE
{
$$ = ctx->builtin_types.sampler[HLSL_SAMPLER_DIM_3D];
}
| TYPE_IDENTIFIER
{
$$ = hlsl_get_type(ctx->cur_scope, $1, true);
vkd3d_free($1);
}
| KW_STRUCT TYPE_IDENTIFIER
{
$$ = hlsl_get_type(ctx->cur_scope, $2, true);
if ($$->type != HLSL_CLASS_STRUCT)
hlsl_error(ctx, @1, "'%s' redefined as a structure\n", $2);
vkd3d_free($2);
}
declaration_statement:
declaration
| struct_declaration
| typedef
{
if (!($$ = vkd3d_malloc(sizeof(*$$))))
YYABORT;
list_init($$);
}
typedef_type:
type
| struct_spec
typedef:
KW_TYPEDEF var_modifiers typedef_type type_specs ';'
{
if ($2 & ~HLSL_TYPE_MODIFIERS_MASK)
{
struct parse_variable_def *v, *v_next;
hlsl_error(ctx, @1, "modifier not allowed on typedefs");
LIST_FOR_EACH_ENTRY_SAFE(v, v_next, $4, struct parse_variable_def, entry)
vkd3d_free(v);
vkd3d_free($4);
YYABORT;
}
if (!add_typedef(ctx, $2, $3, $4))
YYABORT;
}
type_specs:
type_spec
{
$$ = vkd3d_malloc(sizeof(*$$));
list_init($$);
list_add_head($$, &$1->entry);
}
| type_specs ',' type_spec
{
$$ = $1;
list_add_tail($$, &$3->entry);
}
type_spec:
any_identifier array
{
$$ = vkd3d_calloc(1, sizeof(*$$));
$$->loc = @1;
$$->name = $1;
$$->array_size = $2;
}
declaration:
var_modifiers type variables_def ';'
{
struct hlsl_type *type;
DWORD modifiers = $1;
if (!(type = apply_type_modifiers(ctx, $2, &modifiers, @1)))
YYABORT;
$$ = declare_vars(ctx, type, modifiers, $3);
}
variables_def_optional:
/* empty */
{
$$ = NULL;
}
| variables_def
variables_def:
variable_def
{
$$ = vkd3d_malloc(sizeof(*$$));
list_init($$);
list_add_head($$, &$1->entry);
}
| variables_def ',' variable_def
{
$$ = $1;
list_add_tail($$, &$3->entry);
}
variable_def:
any_identifier array colon_attribute
{
$$ = vkd3d_calloc(1, sizeof(*$$));
$$->loc = @1;
$$->name = $1;
$$->array_size = $2;
$$->semantic = $3.semantic;
$$->reg_reservation = $3.reg_reservation;
}
| any_identifier array colon_attribute '=' complex_initializer
{
TRACE("Declaration with initializer.\n");
$$ = vkd3d_calloc(1, sizeof(*$$));
$$->loc = @1;
$$->name = $1;
$$->array_size = $2;
$$->semantic = $3.semantic;
$$->reg_reservation = $3.reg_reservation;
$$->initializer = $5;
}
array:
/* empty */
{
$$ = 0;
}
| '[' expr ']'
{
unsigned int size = evaluate_array_dimension(node_from_list($2));
hlsl_free_instr_list($2);
if (!size)
{
hlsl_error(ctx, @2,
"array size is not a positive integer constant\n");
YYABORT;
}
TRACE("Array size %u.\n", size);
if (size > 65536)
{
hlsl_error(ctx, @2,
"array size must be between 1 and 65536");
YYABORT;
}
$$ = size;
}
var_modifiers:
/* empty */
{
$$ = 0;
}
| KW_EXTERN var_modifiers
{
$$ = add_modifiers(ctx, $2, HLSL_STORAGE_EXTERN, @1);
}
| KW_NOINTERPOLATION var_modifiers
{
$$ = add_modifiers(ctx, $2, HLSL_STORAGE_NOINTERPOLATION, @1);
}
| KW_PRECISE var_modifiers
{
$$ = add_modifiers(ctx, $2, HLSL_MODIFIER_PRECISE, @1);
}
| KW_SHARED var_modifiers
{
$$ = add_modifiers(ctx, $2, HLSL_STORAGE_SHARED, @1);
}
| KW_GROUPSHARED var_modifiers
{
$$ = add_modifiers(ctx, $2, HLSL_STORAGE_GROUPSHARED, @1);
}
| KW_STATIC var_modifiers
{
$$ = add_modifiers(ctx, $2, HLSL_STORAGE_STATIC, @1);
}
| KW_UNIFORM var_modifiers
{
$$ = add_modifiers(ctx, $2, HLSL_STORAGE_UNIFORM, @1);
}
| KW_VOLATILE var_modifiers
{
$$ = add_modifiers(ctx, $2, HLSL_STORAGE_VOLATILE, @1);
}
| KW_CONST var_modifiers
{
$$ = add_modifiers(ctx, $2, HLSL_MODIFIER_CONST, @1);
}
| KW_ROW_MAJOR var_modifiers
{
$$ = add_modifiers(ctx, $2, HLSL_MODIFIER_ROW_MAJOR, @1);
}
| KW_COLUMN_MAJOR var_modifiers
{
$$ = add_modifiers(ctx, $2, HLSL_MODIFIER_COLUMN_MAJOR, @1);
}
complex_initializer:
initializer_expr
{
$$.args_count = 1;
if (!($$.args = vkd3d_malloc(sizeof(*$$.args))))
YYABORT;
$$.args[0] = node_from_list($1);
$$.instrs = $1;
}
| '{' initializer_expr_list '}'
{
$$ = $2;
}
| '{' initializer_expr_list ',' '}'
{
$$ = $2;
}
initializer_expr:
assignment_expr
initializer_expr_list:
initializer_expr
{
$$.args_count = 1;
if (!($$.args = vkd3d_malloc(sizeof(*$$.args))))
YYABORT;
$$.args[0] = node_from_list($1);
$$.instrs = $1;
}
| initializer_expr_list ',' initializer_expr
{
$$ = $1;
if (!($$.args = vkd3d_realloc($$.args, ($$.args_count + 1) * sizeof(*$$.args))))
YYABORT;
$$.args[$$.args_count++] = node_from_list($3);
list_move_tail($$.instrs, $3);
vkd3d_free($3);
}
boolean:
KW_TRUE
{
$$ = TRUE;
}
| KW_FALSE
{
$$ = FALSE;
}
statement_list:
statement
| statement_list statement
{
$$ = $1;
list_move_tail($$, $2);
vkd3d_free($2);
}
statement:
declaration_statement
| expr_statement
| compound_statement
| jump_statement
| selection_statement
| loop_statement
jump_statement:
KW_RETURN expr ';'
{
if (!add_return(ctx, $2, node_from_list($2), @1))
YYABORT;
$$ = $2;
}
| KW_RETURN ';'
{
if (!($$ = vkd3d_malloc(sizeof(*$$))))
YYABORT;
list_init($$);
if (!add_return(ctx, $$, NULL, @1))
YYABORT;
}
selection_statement:
KW_IF '(' expr ')' if_body
{
struct hlsl_ir_node *condition = node_from_list($3);
struct hlsl_ir_if *instr;
if (!(instr = hlsl_new_if(condition, @1)))
YYABORT;
list_move_tail(&instr->then_instrs, $5.then_instrs);
list_move_tail(&instr->else_instrs, $5.else_instrs);
vkd3d_free($5.then_instrs);
vkd3d_free($5.else_instrs);
if (condition->data_type->dimx > 1 || condition->data_type->dimy > 1)
hlsl_error(ctx, instr->node.loc,
"if condition requires a scalar");
$$ = $3;
list_add_tail($$, &instr->node.entry);
}
if_body:
statement
{
$$.then_instrs = $1;
$$.else_instrs = NULL;
}
| statement KW_ELSE statement
{
$$.then_instrs = $1;
$$.else_instrs = $3;
}
loop_statement:
KW_WHILE '(' expr ')' statement
{
$$ = create_loop(LOOP_WHILE, NULL, $3, NULL, $5, @1);
}
| KW_DO statement KW_WHILE '(' expr ')' ';'
{
$$ = create_loop(LOOP_DO_WHILE, NULL, $5, NULL, $2, @1);
}
| KW_FOR '(' scope_start expr_statement expr_statement expr ')' statement
{
$$ = create_loop(LOOP_FOR, $4, $5, $6, $8, @1);
hlsl_pop_scope(ctx);
}
| KW_FOR '(' scope_start declaration expr_statement expr ')' statement
{
$$ = create_loop(LOOP_FOR, $4, $5, $6, $8, @1);
hlsl_pop_scope(ctx);
}
expr_statement:
';'
{
$$ = vkd3d_malloc(sizeof(*$$));
list_init($$);
}
| expr ';'
{
$$ = $1;
}
primary_expr:
C_FLOAT
{
struct hlsl_ir_constant *c;
if (!(c = vkd3d_malloc(sizeof(*c))))
YYABORT;
init_node(&c->node, HLSL_IR_CONSTANT, ctx->builtin_types.scalar[HLSL_TYPE_FLOAT], @1);
c->value.f[0] = $1;
if (!($$ = make_list(&c->node)))
YYABORT;
}
| C_INTEGER
{
struct hlsl_ir_constant *c;
if (!(c = vkd3d_malloc(sizeof(*c))))
YYABORT;
init_node(&c->node, HLSL_IR_CONSTANT, ctx->builtin_types.scalar[HLSL_TYPE_INT], @1);
c->value.i[0] = $1;
if (!($$ = make_list(&c->node)))
YYABORT;
}
| boolean
{
struct hlsl_ir_constant *c;
if (!(c = vkd3d_malloc(sizeof(*c))))
YYABORT;
init_node(&c->node, HLSL_IR_CONSTANT, ctx->builtin_types.scalar[HLSL_TYPE_BOOL], @1);
c->value.b[0] = $1;
if (!($$ = make_list(&c->node)))
YYABORT;
}
| VAR_IDENTIFIER
{
struct hlsl_ir_load *load;
struct hlsl_ir_var *var;
if (!(var = hlsl_get_var(ctx->cur_scope, $1)))
{
hlsl_error(ctx, @1, "variable '%s' is not declared\n", $1);
YYABORT;
}
if ((load = hlsl_new_var_load(var, @1)))
{
if (!($$ = make_list(&load->node)))
YYABORT;
}
else
$$ = NULL;
}
| '(' expr ')'
{
$$ = $2;
}
postfix_expr:
primary_expr
| postfix_expr OP_INC
{
struct hlsl_ir_node *inc;
if (node_from_list($1)->data_type->modifiers & HLSL_MODIFIER_CONST)
{
hlsl_error(ctx, @2, "modifying a const expression");
YYABORT;
}
inc = hlsl_new_unary_expr(HLSL_IR_UNOP_POSTINC, node_from_list($1), @2);
/* Post increment/decrement expressions are considered const */
inc->data_type = hlsl_type_clone(ctx, inc->data_type, 0);
inc->data_type->modifiers |= HLSL_MODIFIER_CONST;
$$ = append_unop($1, inc);
}
| postfix_expr OP_DEC
{
struct hlsl_ir_node *inc;
if (node_from_list($1)->data_type->modifiers & HLSL_MODIFIER_CONST)
{
hlsl_error(ctx, @2, "modifying a const expression");
YYABORT;
}
inc = hlsl_new_unary_expr(HLSL_IR_UNOP_POSTDEC, node_from_list($1), @2);
/* Post increment/decrement expressions are considered const */
inc->data_type = hlsl_type_clone(ctx, inc->data_type, 0);
inc->data_type->modifiers |= HLSL_MODIFIER_CONST;
$$ = append_unop($1, inc);
}
| postfix_expr '.' any_identifier
{
struct hlsl_ir_node *node = node_from_list($1);
if (node->data_type->type == HLSL_CLASS_STRUCT)
{
struct hlsl_type *type = node->data_type;
struct hlsl_struct_field *field;
$$ = NULL;
LIST_FOR_EACH_ENTRY(field, type->e.elements, struct hlsl_struct_field, entry)
{
if (!strcmp($3, field->name))
{
if (!add_record_load(ctx, $1, node, field, @2))
YYABORT;
$$ = $1;
break;
}
}
if (!$$)
{
hlsl_error(ctx, @3, "invalid subscript %s", debugstr_a($3));
YYABORT;
}
}
else if (node->data_type->type <= HLSL_CLASS_LAST_NUMERIC)
{
struct hlsl_ir_swizzle *swizzle;
if (!(swizzle = get_swizzle(ctx, node, $3, &@3)))
{
hlsl_error(ctx, @3, "invalid swizzle %s", debugstr_a($3));
YYABORT;
}
$$ = append_unop($1, &swizzle->node);
}
else
{
hlsl_error(ctx, @3, "invalid subscript %s", debugstr_a($3));
YYABORT;
}
}
| postfix_expr '[' expr ']'
{
struct hlsl_ir_node *array = node_from_list($1), *index = node_from_list($3);
list_move_tail($1, $3);
vkd3d_free($3);
if (index->data_type->type != HLSL_CLASS_SCALAR)
{
hlsl_error(ctx, @3, "array index is not scalar");
hlsl_free_instr_list($1);
YYABORT;
}
if (!add_array_load(ctx, $1, array, index, @2))
{
hlsl_free_instr_list($1);
YYABORT;
}
$$ = $1;
}
/* var_modifiers is necessary to avoid shift/reduce conflicts. */
| var_modifiers type '(' initializer_expr_list ')'
{
struct hlsl_ir_assignment *assignment;
unsigned int i, writemask_offset = 0;
static unsigned int counter;
struct hlsl_ir_load *load;
struct hlsl_ir_var *var;
char name[23];
if ($1)
{
hlsl_error(ctx, @1,
"unexpected modifier on a constructor\n");
YYABORT;
}
if ($2->type > HLSL_CLASS_LAST_NUMERIC)
{
hlsl_error(ctx, @2,
"constructors may only be used with numeric data types\n");
YYABORT;
}
if ($2->dimx * $2->dimy != initializer_size(&$4))
{
hlsl_error(ctx, @4,
"expected %u components in constructor, but got %u\n",
$2->dimx * $2->dimy, initializer_size(&$4));
YYABORT;
}
if ($2->type == HLSL_CLASS_MATRIX)
FIXME("Matrix constructors are not supported yet.\n");
sprintf(name, "<constructor-%x>", counter++);
if (!(var = hlsl_new_synthetic_var(ctx, name, $2, @2)))
YYABORT;
for (i = 0; i < $4.args_count; ++i)
{
struct hlsl_ir_node *arg = $4.args[i];
unsigned int width;
if (arg->data_type->type == HLSL_CLASS_OBJECT)
{
hlsl_error(ctx, arg->loc, "invalid constructor argument");
continue;
}
width = hlsl_type_component_count(arg->data_type);
if (width > 4)
{
FIXME("Constructor argument with %u components.\n", width);
continue;
}
if (!(arg = add_implicit_conversion(ctx, $4.instrs, arg,
ctx->builtin_types.vector[$2->base_type][width - 1], &arg->loc)))
continue;
if (!(assignment = hlsl_new_assignment(var, NULL, arg,
((1 << width) - 1) << writemask_offset, arg->loc)))
YYABORT;
writemask_offset += width;
list_add_tail($4.instrs, &assignment->node.entry);
}
vkd3d_free($4.args);
if (!(load = hlsl_new_var_load(var, @2)))
YYABORT;
$$ = append_unop($4.instrs, &load->node);
}
unary_expr:
postfix_expr
| OP_INC unary_expr
{
if (node_from_list($2)->data_type->modifiers & HLSL_MODIFIER_CONST)
{
hlsl_error(ctx, @1, "modifying a const expression");
YYABORT;
}
$$ = append_unop($2, hlsl_new_unary_expr(HLSL_IR_UNOP_PREINC, node_from_list($2), @1));
}
| OP_DEC unary_expr
{
if (node_from_list($2)->data_type->modifiers & HLSL_MODIFIER_CONST)
{
hlsl_error(ctx, @1, "modifying a const expression");
YYABORT;
}
$$ = append_unop($2, hlsl_new_unary_expr(HLSL_IR_UNOP_PREDEC, node_from_list($2), @1));
}
| unary_op unary_expr
{
enum hlsl_ir_expr_op ops[] = {0, HLSL_IR_UNOP_NEG,
HLSL_IR_UNOP_LOGIC_NOT, HLSL_IR_UNOP_BIT_NOT};
if ($1 == UNARY_OP_PLUS)
$$ = $2;
else
$$ = append_unop($2, hlsl_new_unary_expr(ops[$1], node_from_list($2), @1));
}
/* var_modifiers is necessary to avoid shift/reduce conflicts. */
| '(' var_modifiers type array ')' unary_expr
{
struct hlsl_type *src_type = node_from_list($6)->data_type;
struct hlsl_type *dst_type;
if ($2)
{
hlsl_error(ctx, @3, "unexpected modifier in a cast");
YYABORT;
}
if ($4)
dst_type = hlsl_new_array_type(ctx, $3, $4);
else
dst_type = $3;
if (!compatible_data_types(src_type, dst_type))
{
hlsl_error(ctx, @3, "can't cast from %s to %s",
debug_hlsl_type(src_type), debug_hlsl_type(dst_type));
YYABORT;
}
$$ = append_unop($6, &hlsl_new_cast(node_from_list($6), dst_type, &@3)->node);
}
unary_op:
'+'
{
$$ = UNARY_OP_PLUS;
}
| '-'
{
$$ = UNARY_OP_MINUS;
}
| '!'
{
$$ = UNARY_OP_LOGICNOT;
}
| '~'
{
$$ = UNARY_OP_BITNOT;
}
mul_expr:
unary_expr
| mul_expr '*' unary_expr
{
$$ = add_binary_expr(ctx, $1, $3, HLSL_IR_BINOP_MUL, @2);
}
| mul_expr '/' unary_expr
{
$$ = add_binary_expr(ctx, $1, $3, HLSL_IR_BINOP_DIV, @2);
}
| mul_expr '%' unary_expr
{
$$ = add_binary_expr(ctx, $1, $3, HLSL_IR_BINOP_MOD, @2);
}
add_expr:
mul_expr
| add_expr '+' mul_expr
{
$$ = add_binary_expr(ctx, $1, $3, HLSL_IR_BINOP_ADD, @2);
}
| add_expr '-' mul_expr
{
$$ = add_binary_expr(ctx, $1, $3, HLSL_IR_BINOP_SUB, @2);
}
shift_expr:
add_expr
| shift_expr OP_LEFTSHIFT add_expr
{
FIXME("Left shift.\n");
}
| shift_expr OP_RIGHTSHIFT add_expr
{
FIXME("Right shift.\n");
}
relational_expr:
shift_expr
| relational_expr '<' shift_expr
{
$$ = add_binary_expr(ctx, $1, $3, HLSL_IR_BINOP_LESS, @2);
}
| relational_expr '>' shift_expr
{
$$ = add_binary_expr(ctx, $1, $3, HLSL_IR_BINOP_GREATER, @2);
}
| relational_expr OP_LE shift_expr
{
$$ = add_binary_expr(ctx, $1, $3, HLSL_IR_BINOP_LEQUAL, @2);
}
| relational_expr OP_GE shift_expr
{
$$ = add_binary_expr(ctx, $1, $3, HLSL_IR_BINOP_GEQUAL, @2);
}
equality_expr:
relational_expr
| equality_expr OP_EQ relational_expr
{
$$ = add_binary_expr(ctx, $1, $3, HLSL_IR_BINOP_EQUAL, @2);
}
| equality_expr OP_NE relational_expr
{
$$ = add_binary_expr(ctx, $1, $3, HLSL_IR_BINOP_NEQUAL, @2);
}
bitand_expr:
equality_expr
| bitand_expr '&' equality_expr
{
FIXME("Bitwise AND.\n");
}
bitxor_expr:
bitand_expr
| bitxor_expr '^' bitand_expr
{
FIXME("Bitwise XOR.\n");
}
bitor_expr:
bitxor_expr
| bitor_expr '|' bitxor_expr
{
FIXME("Bitwise OR.\n");
}
logicand_expr:
bitor_expr
| logicand_expr OP_AND bitor_expr
{
FIXME("Logical AND.\n");
}
logicor_expr:
logicand_expr
| logicor_expr OP_OR logicand_expr
{
FIXME("Logical OR.\n");
}
conditional_expr:
logicor_expr
| logicor_expr '?' expr ':' assignment_expr
{
FIXME("Ternary operator.\n");
}
assignment_expr:
conditional_expr
| unary_expr assign_op assignment_expr
{
struct hlsl_ir_node *lhs = node_from_list($1), *rhs = node_from_list($3);
if (lhs->data_type->modifiers & HLSL_MODIFIER_CONST)
{
hlsl_error(ctx, @2, "l-value is const");
YYABORT;
}
list_move_tail($3, $1);
vkd3d_free($1);
if (!add_assignment(ctx, $3, lhs, $2, rhs))
YYABORT;
$$ = $3;
}
assign_op:
'='
{
$$ = ASSIGN_OP_ASSIGN;
}
| OP_ADDASSIGN
{
$$ = ASSIGN_OP_ADD;
}
| OP_SUBASSIGN
{
$$ = ASSIGN_OP_SUB;
}
| OP_MULASSIGN
{
$$ = ASSIGN_OP_MUL;
}
| OP_DIVASSIGN
{
$$ = ASSIGN_OP_DIV;
}
| OP_MODASSIGN
{
$$ = ASSIGN_OP_MOD;
}
| OP_LEFTSHIFTASSIGN
{
$$ = ASSIGN_OP_LSHIFT;
}
| OP_RIGHTSHIFTASSIGN
{
$$ = ASSIGN_OP_RSHIFT;
}
| OP_ANDASSIGN
{
$$ = ASSIGN_OP_AND;
}
| OP_ORASSIGN
{
$$ = ASSIGN_OP_OR;
}
| OP_XORASSIGN
{
$$ = ASSIGN_OP_XOR;
}
expr:
assignment_expr
| expr ',' assignment_expr
{
$$ = $1;
list_move_tail($$, $3);
vkd3d_free($3);
}
%%
static void dump_function_decl(struct rb_entry *entry, void *context)
{
struct hlsl_ir_function_decl *func = RB_ENTRY_VALUE(entry, struct hlsl_ir_function_decl, entry);
if (func->body)
hlsl_dump_function(func);
}
static void dump_function(struct rb_entry *entry, void *context)
{
struct hlsl_ir_function *func = RB_ENTRY_VALUE(entry, struct hlsl_ir_function, entry);
rb_for_each_entry(&func->overloads, dump_function_decl, NULL);
}
/* Allocate a unique, ordered index to each instruction, which will be used for
* computing liveness ranges. */
static unsigned int index_instructions(struct list *instrs, unsigned int index)
{
struct hlsl_ir_node *instr;
LIST_FOR_EACH_ENTRY(instr, instrs, struct hlsl_ir_node, entry)
{
instr->index = index++;
if (instr->type == HLSL_IR_IF)
{
struct hlsl_ir_if *iff = hlsl_ir_if(instr);
index = index_instructions(&iff->then_instrs, index);
index = index_instructions(&iff->else_instrs, index);
}
else if (instr->type == HLSL_IR_LOOP)
{
index = index_instructions(&hlsl_ir_loop(instr)->body, index);
hlsl_ir_loop(instr)->next_index = index;
}
}
return index;
}
/* Compute the earliest and latest liveness for each variable. In the case that
* a variable is accessed inside of a loop, we promote its liveness to extend
* to at least the range of the entire loop. Note that we don't need to do this
* for anonymous nodes, since there's currently no way to use a node which was
* calculated in an earlier iteration of the loop. */
static void compute_liveness_recurse(struct list *instrs, unsigned int loop_first, unsigned int loop_last)
{
struct hlsl_ir_node *instr;
struct hlsl_ir_var *var;
LIST_FOR_EACH_ENTRY(instr, instrs, struct hlsl_ir_node, entry)
{
switch (instr->type)
{
case HLSL_IR_ASSIGNMENT:
{
struct hlsl_ir_assignment *assignment = hlsl_ir_assignment(instr);
var = assignment->lhs.var;
if (!var->first_write)
var->first_write = loop_first ? min(instr->index, loop_first) : instr->index;
assignment->rhs.node->last_read = instr->index;
if (assignment->lhs.offset.node)
assignment->lhs.offset.node->last_read = instr->index;
break;
}
case HLSL_IR_EXPR:
{
struct hlsl_ir_expr *expr = hlsl_ir_expr(instr);
unsigned int i;
for (i = 0; i < ARRAY_SIZE(expr->operands) && expr->operands[i].node; ++i)
expr->operands[i].node->last_read = instr->index;
break;
}
case HLSL_IR_IF:
{
struct hlsl_ir_if *iff = hlsl_ir_if(instr);
compute_liveness_recurse(&iff->then_instrs, loop_first, loop_last);
compute_liveness_recurse(&iff->else_instrs, loop_first, loop_last);
iff->condition.node->last_read = instr->index;
break;
}
case HLSL_IR_LOAD:
{
struct hlsl_ir_load *load = hlsl_ir_load(instr);
var = load->src.var;
var->last_read = loop_last ? max(instr->index, loop_last) : instr->index;
if (load->src.offset.node)
load->src.offset.node->last_read = instr->index;
break;
}
case HLSL_IR_LOOP:
{
struct hlsl_ir_loop *loop = hlsl_ir_loop(instr);
compute_liveness_recurse(&loop->body, loop_first ? loop_first : instr->index,
loop_last ? loop_last : loop->next_index);
break;
}
case HLSL_IR_SWIZZLE:
{
struct hlsl_ir_swizzle *swizzle = hlsl_ir_swizzle(instr);
swizzle->val.node->last_read = instr->index;
break;
}
case HLSL_IR_CONSTANT:
case HLSL_IR_JUMP:
break;
}
}
}
static void compute_liveness(struct hlsl_ctx *ctx, struct hlsl_ir_function_decl *entry_func)
{
struct hlsl_ir_var *var;
LIST_FOR_EACH_ENTRY(var, &ctx->globals->vars, struct hlsl_ir_var, scope_entry)
{
var->first_write = 1;
}
LIST_FOR_EACH_ENTRY(var, entry_func->parameters, struct hlsl_ir_var, param_entry)
{
if (var->modifiers & HLSL_STORAGE_IN)
var->first_write = 1;
if (var->modifiers & HLSL_STORAGE_OUT)
var->last_read = UINT_MAX;
}
if (entry_func->return_var)
entry_func->return_var->last_read = UINT_MAX;
compute_liveness_recurse(entry_func->body, 0, 0);
}
int hlsl_parser_compile(struct hlsl_ctx *ctx, const char *entrypoint)
{
struct hlsl_ir_function_decl *entry_func;
yyparse(ctx->scanner, ctx);
if (ctx->failed)
return VKD3D_ERROR_INVALID_SHADER;
if (!(entry_func = get_func_entry(ctx, entrypoint)))
{
hlsl_message("error: entry point %s is not defined\n", debugstr_a(entrypoint));
return VKD3D_ERROR_INVALID_SHADER;
}
if (!hlsl_type_is_void(entry_func->return_type)
&& entry_func->return_type->type != HLSL_CLASS_STRUCT && !entry_func->semantic)
{
hlsl_error(ctx, entry_func->loc,
"entry point \"%s\" is missing a return value semantic", entry_func->func->name);
}
list_move_head(entry_func->body, &ctx->static_initializers);
/* Index 0 means unused; index 1 means function entry, so start at 2. */
index_instructions(entry_func->body, 2);
if (TRACE_ON())
{
TRACE("IR dump.\n");
rb_for_each_entry(&ctx->functions, dump_function, NULL);
}
compute_liveness(ctx, entry_func);
if (ctx->failed)
return VKD3D_ERROR_INVALID_SHADER;
return VKD3D_ERROR_NOT_IMPLEMENTED;
}
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