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vkd3d-shader: Fold redundant casts between scalars and 1-dimensional vectors.

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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>
This commit is contained in:
Zebediah Figura 2021-03-16 16:31:56 -05:00 committed by Alexandre Julliard
parent 79d4e62911
commit 1b7cc14365
1 changed files with 12 additions and 1 deletions
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13
libs/vkd3d-shader/hlsl_codegen.c
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@ -57,13 +57,24 @@ static void replace_node(struct hlsl_ir_node *old, struct hlsl_ir_node *new)
hlsl_free_instr(old);
}
static bool is_vec1(const struct hlsl_type *type)
{
return (type->type == HLSL_CLASS_SCALAR) || (type->type == HLSL_CLASS_VECTOR && type->dimx == 1);
}
static bool fold_redundant_casts(struct hlsl_ctx *ctx, struct hlsl_ir_node *instr, void *context)
{
if (instr->type == HLSL_IR_EXPR)
{
struct hlsl_ir_expr *expr = hlsl_ir_expr(instr);
const struct hlsl_type *src_type = expr->operands[0].node->data_type;
const struct hlsl_type *dst_type = expr->node.data_type;
if (expr->op == HLSL_IR_UNOP_CAST && hlsl_type_compare(expr->node.data_type, expr->operands[0].node->data_type))
if (expr->op != HLSL_IR_UNOP_CAST)
return false;
if (hlsl_type_compare(src_type, dst_type)
|| (src_type->base_type == dst_type->base_type && is_vec1(src_type) && is_vec1(dst_type)))
{
replace_node(&expr->node, expr->operands[0].node);
return true;