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tint/writer/msl: Generate an array<T,N> helper

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And remove the WrapArraysInStructs transform.

Wrapping arrays in structures becomes troublesome for `const` arrays, as
currently WGSL does not allow `const` structures.

MSL 2.0+ has a builtin array<> helper, but we're targetting MSL 1.2, so
we have to emit our own. Fortunately, it can be done with a few lines of
templated code.

This produces significantly cleaner output.

Change-Id: Ifc92ef21e09befa252a07c856c4b5afdc51cc2e4
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/94540
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@chromium.org>
Reviewed-by: David Neto <dneto@google.com>
This commit is contained in:
Ben Clayton
2022-06-24 17:01:59 +00:00
committed by Dawn LUCI CQ
parent 3c054304a8
commit f47887d207
218 changed files with 3637 additions and 2269 deletions
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5
test/tint/var/initialization/function/array/array_i32.wgsl Normal file
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@compute @workgroup_size(1)
fn main() {
var zero : array<array<i32, 3>, 2>;
var init : array<array<i32, 3>, 2> = array<array<i32, 3>, 2>(array<i32, 3>(1, 2, 3), array<i32, 3>(4, 5, 6));
}

14
test/tint/var/initialization/function/array/array_i32.wgsl.expected.glsl Normal file
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#version 310 es
void tint_symbol() {
int zero[2][3] = int[2][3](int[3](0, 0, 0), int[3](0, 0, 0));
int tint_symbol_1[3] = int[3](1, 2, 3);
int tint_symbol_2[3] = int[3](4, 5, 6);
int init[2][3] = int[2][3](tint_symbol_1, tint_symbol_2);
}
layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
void main() {
tint_symbol();
return;
}

8
test/tint/var/initialization/function/array/array_i32.wgsl.expected.hlsl Normal file
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[numthreads(1, 1, 1)]
void main() {
int zero[2][3] = (int[2][3])0;
const int tint_symbol[3] = {1, 2, 3};
const int tint_symbol_1[3] = {4, 5, 6};
int init[2][3] = {tint_symbol, tint_symbol_1};
return;
}

24
test/tint/var/initialization/function/array/array_i32.wgsl.expected.msl Normal file
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#include <metal_stdlib>
using namespace metal;
template<typename T, size_t N>
struct tint_array {
const constant T& operator[](size_t i) const constant { return elements[i]; }
device T& operator[](size_t i) device { return elements[i]; }
const device T& operator[](size_t i) const device { return elements[i]; }
thread T& operator[](size_t i) thread { return elements[i]; }
const thread T& operator[](size_t i) const thread { return elements[i]; }
threadgroup T& operator[](size_t i) threadgroup { return elements[i]; }
const threadgroup T& operator[](size_t i) const threadgroup { return elements[i]; }
T elements[N];
};
kernel void tint_symbol() {
tint_array<tint_array<int, 3>, 2> zero = {};
tint_array<int, 3> const tint_symbol_1 = tint_array<int, 3>{1, 2, 3};
tint_array<int, 3> const tint_symbol_2 = tint_array<int, 3>{4, 5, 6};
tint_array<tint_array<int, 3>, 2> init = tint_array<tint_array<int, 3>, 2>{tint_symbol_1, tint_symbol_2};
return;
}

40
test/tint/var/initialization/function/array/array_i32.wgsl.expected.spvasm Normal file
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; SPIR-V
; Version: 1.3
; Generator: Google Tint Compiler; 0
; Bound: 24
; Schema: 0
OpCapability Shader
OpMemoryModel Logical GLSL450
OpEntryPoint GLCompute %main "main"
OpExecutionMode %main LocalSize 1 1 1
OpName %main "main"
OpName %zero "zero"
OpName %init "init"
OpDecorate %_arr_int_uint_3 ArrayStride 4
OpDecorate %_arr__arr_int_uint_3_uint_2 ArrayStride 12
%void = OpTypeVoid
%1 = OpTypeFunction %void
%int = OpTypeInt 32 1
%uint = OpTypeInt 32 0
%uint_3 = OpConstant %uint 3
%_arr_int_uint_3 = OpTypeArray %int %uint_3
%uint_2 = OpConstant %uint 2
%_arr__arr_int_uint_3_uint_2 = OpTypeArray %_arr_int_uint_3 %uint_2
%_ptr_Function__arr__arr_int_uint_3_uint_2 = OpTypePointer Function %_arr__arr_int_uint_3_uint_2
%13 = OpConstantNull %_arr__arr_int_uint_3_uint_2
%int_1 = OpConstant %int 1
%int_2 = OpConstant %int 2
%int_3 = OpConstant %int 3
%17 = OpConstantComposite %_arr_int_uint_3 %int_1 %int_2 %int_3
%int_4 = OpConstant %int 4
%int_5 = OpConstant %int 5
%int_6 = OpConstant %int 6
%21 = OpConstantComposite %_arr_int_uint_3 %int_4 %int_5 %int_6
%22 = OpConstantComposite %_arr__arr_int_uint_3_uint_2 %17 %21
%main = OpFunction %void None %1
%4 = OpLabel
%zero = OpVariable %_ptr_Function__arr__arr_int_uint_3_uint_2 Function %13
%init = OpVariable %_ptr_Function__arr__arr_int_uint_3_uint_2 Function %13
OpStore %init %22
OpReturn
OpFunctionEnd

5
test/tint/var/initialization/function/array/array_i32.wgsl.expected.wgsl Normal file
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@compute @workgroup_size(1)
fn main() {
var zero : array<array<i32, 3>, 2>;
var init : array<array<i32, 3>, 2> = array<array<i32, 3>, 2>(array<i32, 3>(1, 2, 3), array<i32, 3>(4, 5, 6));
}

5
test/tint/var/initialization/function/array/i32.wgsl Normal file
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@@ -0,0 +1,5 @@
@compute @workgroup_size(1)
fn main() {
var zero : array<i32, 3>;
var init : array<i32, 3> = array<i32, 3>(1, 2, 3);
}

12
test/tint/var/initialization/function/array/i32.wgsl.expected.glsl Normal file
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#version 310 es
void tint_symbol() {
int zero[3] = int[3](0, 0, 0);
int init[3] = int[3](1, 2, 3);
}
layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
void main() {
tint_symbol();
return;
}

6
test/tint/var/initialization/function/array/i32.wgsl.expected.hlsl Normal file
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[numthreads(1, 1, 1)]
void main() {
int zero[3] = (int[3])0;
int init[3] = {1, 2, 3};
return;
}

22
test/tint/var/initialization/function/array/i32.wgsl.expected.msl Normal file
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#include <metal_stdlib>
using namespace metal;
template<typename T, size_t N>
struct tint_array {
const constant T& operator[](size_t i) const constant { return elements[i]; }
device T& operator[](size_t i) device { return elements[i]; }
const device T& operator[](size_t i) const device { return elements[i]; }
thread T& operator[](size_t i) thread { return elements[i]; }
const thread T& operator[](size_t i) const thread { return elements[i]; }
threadgroup T& operator[](size_t i) threadgroup { return elements[i]; }
const threadgroup T& operator[](size_t i) const threadgroup { return elements[i]; }
T elements[N];
};
kernel void tint_symbol() {
tint_array<int, 3> zero = {};
tint_array<int, 3> init = tint_array<int, 3>{1, 2, 3};
return;
}

32
test/tint/var/initialization/function/array/i32.wgsl.expected.spvasm Normal file
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@@ -0,0 +1,32 @@
; SPIR-V
; Version: 1.3
; Generator: Google Tint Compiler; 0
; Bound: 17
; Schema: 0
OpCapability Shader
OpMemoryModel Logical GLSL450
OpEntryPoint GLCompute %main "main"
OpExecutionMode %main LocalSize 1 1 1
OpName %main "main"
OpName %zero "zero"
OpName %init "init"
OpDecorate %_arr_int_uint_3 ArrayStride 4
%void = OpTypeVoid
%1 = OpTypeFunction %void
%int = OpTypeInt 32 1
%uint = OpTypeInt 32 0
%uint_3 = OpConstant %uint 3
%_arr_int_uint_3 = OpTypeArray %int %uint_3
%_ptr_Function__arr_int_uint_3 = OpTypePointer Function %_arr_int_uint_3
%11 = OpConstantNull %_arr_int_uint_3
%int_1 = OpConstant %int 1
%int_2 = OpConstant %int 2
%int_3 = OpConstant %int 3
%15 = OpConstantComposite %_arr_int_uint_3 %int_1 %int_2 %int_3
%main = OpFunction %void None %1
%4 = OpLabel
%zero = OpVariable %_ptr_Function__arr_int_uint_3 Function %11
%init = OpVariable %_ptr_Function__arr_int_uint_3 Function %11
OpStore %init %15
OpReturn
OpFunctionEnd

5
test/tint/var/initialization/function/array/i32.wgsl.expected.wgsl Normal file
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@@ -0,0 +1,5 @@
@compute @workgroup_size(1)
fn main() {
var zero : array<i32, 3>;
var init : array<i32, 3> = array<i32, 3>(1, 2, 3);
}