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vkd3d-shader/hlsl: Lower scalar-to-vector casts to swizzles.

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Signed-off-by: Matteo Bruni <mbruni@codeweavers.com>
Signed-off-by: Giovanni Mascellani <gmascellani@codeweavers.com>
Signed-off-by: Zebediah Figura <zfigura@codeweavers.com>
Signed-off-by: Henri Verbeet <hverbeet@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Zebediah Figura 2021-12-01 17:14:55 +01:00 committed by Alexandre Julliard
parent cbe69494a7
commit 0a4e948453
2 changed files with 38 additions and 1 deletions
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1
Makefile.am
View File

@ -290,7 +290,6 @@ XFAIL_TESTS = \
tests/conditional.shader_test \
tests/hlsl-array-dimension.shader_test \
tests/hlsl-bool-cast.shader_test \
tests/hlsl-comma.shader_test \
tests/hlsl-cross.shader_test \
tests/hlsl-duplicate-modifiers.shader_test \
tests/hlsl-for.shader_test \

38
libs/vkd3d-shader/hlsl_codegen.c
View File

@ -237,6 +237,43 @@ static void replace_node(struct hlsl_ir_node *old, struct hlsl_ir_node *new)
hlsl_free_instr(old);
}
/* Lower casts from vec1 to vecN to swizzles. */
static bool lower_broadcasts(struct hlsl_ctx *ctx, struct hlsl_ir_node *instr, void *context)
{
const struct hlsl_type *src_type, *dst_type;
struct hlsl_type *dst_scalar_type;
struct hlsl_ir_expr *cast;
if (instr->type != HLSL_IR_EXPR)
return false;
cast = hlsl_ir_expr(instr);
src_type = cast->operands[0].node->data_type;
dst_type = cast->node.data_type;
if (cast->op == HLSL_OP1_CAST
&& src_type->type <= HLSL_CLASS_VECTOR && dst_type->type <= HLSL_CLASS_VECTOR
&& src_type->dimx == 1)
{
struct hlsl_ir_swizzle *swizzle;
struct hlsl_ir_expr *new_cast;
dst_scalar_type = hlsl_get_scalar_type(ctx, dst_type->base_type);
/* We need to preserve the cast since it might be doing more than just
* turning the scalar into a vector. */
if (!(new_cast = hlsl_new_cast(ctx, cast->operands[0].node, dst_scalar_type, &cast->node.loc)))
return false;
list_add_after(&cast->node.entry, &new_cast->node.entry);
if (!(swizzle = hlsl_new_swizzle(ctx, HLSL_SWIZZLE(X, X, X, X), dst_type->dimx, &new_cast->node, &cast->node.loc)))
return false;
list_add_after(&new_cast->node.entry, &swizzle->node.entry);
replace_node(&cast->node, &swizzle->node);
return true;
}
return false;
}
struct copy_propagation_value
{
struct hlsl_ir_node *node;
@ -1624,6 +1661,7 @@ int hlsl_emit_dxbc(struct hlsl_ctx *ctx, struct hlsl_ir_function_decl *entry_fun
append_output_var_copy(ctx, &body->instrs, entry_func->return_var);
}
transform_ir(ctx, lower_broadcasts, body, NULL);
while (transform_ir(ctx, fold_redundant_casts, body, NULL));
do
{