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vkd3d-shader/hlsl: Add constant folding for the ternary operator.

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Signed-off-by: Nikolay Sivov <nsivov@codeweavers.com>
This commit is contained in:
Nikolay Sivov 2023-09-12 17:17:29 +02:00 committed by Alexandre Julliard
parent 6d1ba83856
commit d9c984c11a
Notes: Alexandre Julliard 2023-09-22 22:46:41 +02:00 
Approved-by: Giovanni Mascellani (@giomasce)
Approved-by: Zebediah Figura (@zfigura)
Approved-by: Henri Verbeet (@hverbeet)
Approved-by: Alexandre Julliard (@julliard)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/336
1 changed files with 38 additions and 0 deletions
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38
libs/vkd3d-shader/hlsl_constant_ops.c
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@ -869,6 +869,40 @@ static bool fold_nequal(struct hlsl_ctx *ctx, struct hlsl_constant_value *dst, c
return true;
}
static bool fold_ternary(struct hlsl_ctx *ctx, struct hlsl_constant_value *dst, const struct hlsl_type *dst_type,
const struct hlsl_ir_constant *src1, const struct hlsl_ir_constant *src2, const struct hlsl_ir_constant *src3)
{
unsigned int k;
assert(dst_type->base_type == src2->node.data_type->base_type);
assert(dst_type->base_type == src3->node.data_type->base_type);
for (k = 0; k < dst_type->dimx; ++k)
{
switch (src1->node.data_type->base_type)
{
case HLSL_TYPE_FLOAT:
case HLSL_TYPE_HALF:
dst->u[k] = src1->value.u[k].f != 0.0f ? src2->value.u[k] : src3->value.u[k];
break;
case HLSL_TYPE_DOUBLE:
dst->u[k] = src1->value.u[k].d != 0.0 ? src2->value.u[k] : src3->value.u[k];
break;
case HLSL_TYPE_INT:
case HLSL_TYPE_UINT:
case HLSL_TYPE_BOOL:
dst->u[k] = src1->value.u[k].u ? src2->value.u[k] : src3->value.u[k];
break;
default:
vkd3d_unreachable();
}
}
return true;
}
bool hlsl_fold_constant_exprs(struct hlsl_ctx *ctx, struct hlsl_ir_node *instr, void *context)
{
struct hlsl_ir_constant *arg1, *arg2 = NULL, *arg3 = NULL;
@ -990,6 +1024,10 @@ bool hlsl_fold_constant_exprs(struct hlsl_ctx *ctx, struct hlsl_ir_node *instr,
success = fold_dp2add(ctx, &res, instr->data_type, arg1, arg2, arg3);
break;
case HLSL_OP3_TERNARY:
success = fold_ternary(ctx, &res, instr->data_type, arg1, arg2, arg3);
break;
default:
FIXME("Fold \"%s\" expression.\n", debug_hlsl_expr_op(expr->op));
success = false;