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vkd3d-shader/hlsl: Fold constant swizzles.

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Signed-off-by: Giovanni Mascellani <gmascellani@codeweavers.com>
Signed-off-by: Henri Verbeet <hverbeet@codeweavers.com>
Signed-off-by: Zebediah Figura <zfigura@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Zebediah Figura 2022-06-27 17:22:38 +02:00 committed by Alexandre Julliard
parent 7682da58a8
commit 0ddaa80616
3 changed files with 34 additions and 3 deletions
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3
libs/vkd3d-shader/hlsl.h
View File

@ -800,7 +800,8 @@ bool hlsl_offset_from_deref(struct hlsl_ctx *ctx, const struct hlsl_deref *deref
unsigned int hlsl_offset_from_deref_safe(struct hlsl_ctx *ctx, const struct hlsl_deref *deref);
struct hlsl_reg hlsl_reg_from_deref(struct hlsl_ctx *ctx, const struct hlsl_deref *deref);
bool hlsl_fold_constants(struct hlsl_ctx *ctx, struct hlsl_ir_node *instr, void *context);
bool hlsl_fold_constant_exprs(struct hlsl_ctx *ctx, struct hlsl_ir_node *instr, void *context);
bool hlsl_fold_constant_swizzles(struct hlsl_ctx *ctx, struct hlsl_ir_node *instr, void *context);
bool hlsl_sm1_register_from_semantic(struct hlsl_ctx *ctx, const struct hlsl_semantic *semantic,
bool output, D3DSHADER_PARAM_REGISTER_TYPE *type, unsigned int *reg);

3
libs/vkd3d-shader/hlsl_codegen.c
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@ -1946,7 +1946,8 @@ int hlsl_emit_bytecode(struct hlsl_ctx *ctx, struct hlsl_ir_function_decl *entry
transform_ir(ctx, lower_casts_to_bool, body, NULL);
do
{
progress = transform_ir(ctx, hlsl_fold_constants, body, NULL);
progress = transform_ir(ctx, hlsl_fold_constant_exprs, body, NULL);
progress |= transform_ir(ctx, hlsl_fold_constant_swizzles, body, NULL);
progress |= copy_propagation_execute(ctx, body);
progress |= transform_ir(ctx, remove_trivial_swizzles, body, NULL);
}

31
libs/vkd3d-shader/hlsl_constant_ops.c
View File

@ -369,7 +369,7 @@ static bool fold_mod(struct hlsl_ctx *ctx, struct hlsl_ir_constant *dst,
return true;
}
bool hlsl_fold_constants(struct hlsl_ctx *ctx, struct hlsl_ir_node *instr, void *context)
bool hlsl_fold_constant_exprs(struct hlsl_ctx *ctx, struct hlsl_ir_node *instr, void *context)
{
struct hlsl_ir_constant *arg1, *arg2 = NULL, *res;
struct hlsl_ir_expr *expr;
@ -447,3 +447,32 @@ bool hlsl_fold_constants(struct hlsl_ctx *ctx, struct hlsl_ir_node *instr, void
}
return success;
}
bool hlsl_fold_constant_swizzles(struct hlsl_ctx *ctx, struct hlsl_ir_node *instr, void *context)
{
struct hlsl_ir_constant *value, *res;
struct hlsl_ir_swizzle *swizzle;
unsigned int i, swizzle_bits;
if (instr->type != HLSL_IR_SWIZZLE)
return false;
swizzle = hlsl_ir_swizzle(instr);
if (swizzle->val.node->type != HLSL_IR_CONSTANT)
return false;
value = hlsl_ir_constant(swizzle->val.node);
if (!(res = hlsl_alloc(ctx, sizeof(*res))))
return false;
init_node(&res->node, HLSL_IR_CONSTANT, instr->data_type, instr->loc);
swizzle_bits = swizzle->swizzle;
for (i = 0; i < swizzle->node.data_type->dimx; ++i)
{
res->value[i] = value->value[swizzle_bits & 3];
swizzle_bits >>= 2;
}
list_add_before(&swizzle->node.entry, &res->node.entry);
hlsl_replace_node(&swizzle->node, &res->node);
return true;
}