diff options
Diffstat (limited to 'src/compiler/nir/nir_intrinsics.py')
| -rw-r--r-- | src/compiler/nir/nir_intrinsics.py | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/src/compiler/nir/nir_intrinsics.py b/src/compiler/nir/nir_intrinsics.py index 484b2d4fd68..1d9a76a32ef 100644 --- a/src/compiler/nir/nir_intrinsics.py +++ b/src/compiler/nir/nir_intrinsics.py @@ -124,6 +124,10 @@ intrinsic("load_var", dest_comp=0, num_vars=1, flags=[CAN_ELIMINATE]) intrinsic("store_var", src_comp=[0], num_vars=1, indices=[WRMASK]) intrinsic("copy_var", num_vars=2) +intrinsic("load_deref", dest_comp=0, src_comp=[1], flags=[CAN_ELIMINATE]) +intrinsic("store_deref", src_comp=[1, 0], indices=[WRMASK]) +intrinsic("copy_deref", src_comp=[1, 1]) + # Interpolation of input. The interp_var_at* intrinsics are similar to the # load_var intrinsic acting on a shader input except that they interpolate # the input differently. The at_sample and at_offset intrinsics take an @@ -137,6 +141,19 @@ intrinsic("interp_var_at_sample", src_comp=[1], dest_comp=0, num_vars=1, intrinsic("interp_var_at_offset", src_comp=[2], dest_comp=0, num_vars=1, flags=[CAN_ELIMINATE, CAN_REORDER]) +# Interpolation of input. The interp_deref_at* intrinsics are similar to the +# load_var intrinsic acting on a shader input except that they interpolate the +# input differently. The at_sample and at_offset intrinsics take an +# additional source that is an integer sample id or a vec2 position offset +# respectively. + +intrinsic("interp_deref_at_centroid", dest_comp=0, src_comp=[1], + flags=[ CAN_ELIMINATE, CAN_REORDER]) +intrinsic("interp_deref_at_sample", src_comp=[1, 1], dest_comp=0, + flags=[CAN_ELIMINATE, CAN_REORDER]) +intrinsic("interp_deref_at_offset", src_comp=[1, 2], dest_comp=0, + flags=[CAN_ELIMINATE, CAN_REORDER]) + # Ask the driver for the size of a given buffer. It takes the buffer index # as source. intrinsic("get_buffer_size", src_comp=[1], dest_comp=1, @@ -258,14 +275,17 @@ intrinsic("set_vertex_count", src_comp=[1]) def atomic(name, flags=[]): intrinsic(name + "_var", dest_comp=1, num_vars=1, flags=flags) + intrinsic(name + "_deref", src_comp=[1], dest_comp=1, flags=flags) intrinsic(name, src_comp=[1], dest_comp=1, indices=[BASE], flags=flags) def atomic2(name): intrinsic(name + "_var", src_comp=[1], dest_comp=1, num_vars=1) + intrinsic(name + "_deref", src_comp=[1, 1], dest_comp=1) intrinsic(name, src_comp=[1, 1], dest_comp=1, indices=[BASE]) def atomic3(name): intrinsic(name + "_var", src_comp=[1, 1], dest_comp=1, num_vars=1) + intrinsic(name + "_deref", src_comp=[1, 1, 1], dest_comp=1) intrinsic(name, src_comp=[1, 1, 1], dest_comp=1, indices=[BASE]) atomic("atomic_counter_inc") @@ -307,6 +327,34 @@ intrinsic("image_var_atomic_comp_swap", src_comp=[4, 1, 1, 1], dest_comp=1, num_ intrinsic("image_var_size", dest_comp=0, num_vars=1, flags=[CAN_ELIMINATE, CAN_REORDER]) intrinsic("image_var_samples", dest_comp=1, num_vars=1, flags=[CAN_ELIMINATE, CAN_REORDER]) +# Image load, store and atomic intrinsics. +# +# All image intrinsics take an image target passed as a nir_variable. The +# variable is passed in using a chain of nir_deref_instr with as the first +# source of the image intrinsic. Image variables contain a number of memory +# and layout qualifiers that influence the semantics of the intrinsic. +# +# All image intrinsics take a four-coordinate vector and a sample index as +# first two sources, determining the location within the image that will be +# accessed by the intrinsic. Components not applicable to the image target +# in use are undefined. Image store takes an additional four-component +# argument with the value to be written, and image atomic operations take +# either one or two additional scalar arguments with the same meaning as in +# the ARB_shader_image_load_store specification. +intrinsic("image_deref_load", src_comp=[1, 4, 1], dest_comp=4, + flags=[CAN_ELIMINATE]) +intrinsic("image_deref_store", src_comp=[1, 4, 1, 4]) +intrinsic("image_deref_atomic_add", src_comp=[1, 4, 1, 1], dest_comp=1) +intrinsic("image_deref_atomic_min", src_comp=[1, 4, 1, 1], dest_comp=1) +intrinsic("image_deref_atomic_max", src_comp=[1, 4, 1, 1], dest_comp=1) +intrinsic("image_deref_atomic_and", src_comp=[1, 4, 1, 1], dest_comp=1) +intrinsic("image_deref_atomic_or", src_comp=[1, 4, 1, 1], dest_comp=1) +intrinsic("image_deref_atomic_xor", src_comp=[1, 4, 1, 1], dest_comp=1) +intrinsic("image_deref_atomic_exchange", src_comp=[1, 4, 1, 1], dest_comp=1) +intrinsic("image_deref_atomic_comp_swap", src_comp=[1, 4, 1, 1, 1], dest_comp=1) +intrinsic("image_deref_size", src_comp=[1], dest_comp=0, flags=[CAN_ELIMINATE, CAN_REORDER]) +intrinsic("image_deref_samples", src_comp=[1], dest_comp=1, flags=[CAN_ELIMINATE, CAN_REORDER]) + # Vulkan descriptor set intrinsics # # The Vulkan API uses a different binding model from GL. In the Vulkan @@ -356,6 +404,30 @@ intrinsic("var_atomic_xor", src_comp=[1], dest_comp=1, num_vars=1) intrinsic("var_atomic_exchange", src_comp=[1], dest_comp=1, num_vars=1) intrinsic("var_atomic_comp_swap", src_comp=[1, 1], dest_comp=1, num_vars=1) +# variable atomic intrinsics +# +# All of these variable atomic memory operations read a value from memory, +# compute a new value using one of the operations below, write the new value +# to memory, and return the original value read. +# +# All operations take 2 sources except CompSwap that takes 3. These sources +# represent: +# +# 0: A deref to the memory on which to perform the atomic +# 1: The data parameter to the atomic function (i.e. the value to add +# in shared_atomic_add, etc). +# 2: For CompSwap only: the second data parameter. +intrinsic("deref_atomic_add", src_comp=[1, 1], dest_comp=1) +intrinsic("deref_atomic_imin", src_comp=[1, 1], dest_comp=1) +intrinsic("deref_atomic_umin", src_comp=[1, 1], dest_comp=1) +intrinsic("deref_atomic_imax", src_comp=[1, 1], dest_comp=1) +intrinsic("deref_atomic_umax", src_comp=[1, 1], dest_comp=1) +intrinsic("deref_atomic_and", src_comp=[1, 1], dest_comp=1) +intrinsic("deref_atomic_or", src_comp=[1, 1], dest_comp=1) +intrinsic("deref_atomic_xor", src_comp=[1, 1], dest_comp=1) +intrinsic("deref_atomic_exchange", src_comp=[1, 1], dest_comp=1) +intrinsic("deref_atomic_comp_swap", src_comp=[1, 1, 1], dest_comp=1) + # SSBO atomic intrinsics # # All of the SSBO atomic memory operations read a value from memory, |