We have a different system of generating intrinsics, which makes it easier to
deal with "polymorphic" arithmetic functions.
Defining and storing intrinsics as hlsl_ir_function_decls would also require
more space in memory (and more optimization passes to get rid of the parameter
variables), and doesn't really save us any effort in terms of source code.
Using add_unary_arithmetic_expr() instead of hlsl_new_unary_expr()
allows the intrinsic to work with matrices.
Otherwise we get:
E5017: Aborting due to not yet implemented feature: Copying from unsupported node type.
because an HLSL_IR_EXPR reaches split_matrix_copies().
Atomic ops on images with Unknown type will cause SPIR-V validation failure,
and assertion failure in Mesa debug builds. D3D12 allows atomics on typed
buffers, and this requires a distinction to be made between UAV reads and
atomic ops.
Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=53874
Unlike compatible_data_types() and implicit_compatible_data_types(),
this function is intended to be symmetrical. So it makes sense to
preserve the names "t1" and "t2" for the arguments.
Otherwise, for instance, the added test results in:
debug_hlsl_writemask: Assertion `!(writemask & ~VKD3DSP_WRITEMASK_ALL)' failed.
Which happens in allocate_variable_temp_register() when the variable's
type reg_size is <= 4 but its component count is larger, which may
happen if it contains objects.
