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Add transform/PadArrayElements

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Replaces arrays with an explicit stride with an array to a structure holding the element padded with a `[[size]]` decoration.

Note that the HLSL writer is still not correctly emitting structure fields with a `[[size]]`, which will be fixed in a follow up change.

Bug: tint:182
Bug: tint:895
Fixed: tint:180
Fixed: tint:649
Change-Id: Ic135dfc89309ac805507e9f39392577c7f82d154
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54582
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>
Reviewed-by: James Price <jrprice@google.com>
This commit is contained in:
Ben Clayton
2021-06-16 09:50:11 +00:00
committed by Ben Clayton
parent 92b1991271
commit 31936f375f
19 changed files with 711 additions and 86 deletions
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19
test/array/assign_to_function_var.wgsl.expected.hlsl
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@@ -3,15 +3,18 @@ void unused_entry_point() {
return;
}
struct tint_padded_array_element {
int el;
};
struct tint_array_wrapper {
int arr[4];
tint_padded_array_element arr[4];
};
struct S {
tint_array_wrapper arr;
};
tint_array_wrapper tint_symbol_2(RWByteAddressBuffer buffer, uint offset) {
const tint_array_wrapper tint_symbol_3 = {{asint(buffer.Load((offset + 0u))), asint(buffer.Load((offset + 16u))), asint(buffer.Load((offset + 32u))), asint(buffer.Load((offset + 48u)))}};
const tint_array_wrapper tint_symbol_3 = {{{asint(buffer.Load((offset + 0u)))}, {asint(buffer.Load((offset + 16u)))}, {asint(buffer.Load((offset + 32u)))}, {asint(buffer.Load((offset + 48u)))}}};
return tint_symbol_3;
}
@@ -21,12 +24,12 @@ ConstantBuffer<S> src_uniform : register(b0, space0);
RWByteAddressBuffer src_storage : register(u1, space0);
tint_array_wrapper ret_arr() {
const tint_array_wrapper tint_symbol_4 = {{0, 0, 0, 0}};
const tint_array_wrapper tint_symbol_4 = {{{0}, {0}, {0}, {0}}};
return tint_symbol_4;
}
S ret_struct_arr() {
const S tint_symbol_5 = {{{0, 0, 0, 0}}};
const S tint_symbol_5 = {{{{0}, {0}, {0}, {0}}}};
return tint_symbol_5;
}
@@ -41,13 +44,13 @@ struct tint_array_wrapper_1 {
};
void foo(tint_array_wrapper src_param) {
tint_array_wrapper src_function = {{0, 0, 0, 0}};
tint_array_wrapper tint_symbol = {{0, 0, 0, 0}};
const tint_array_wrapper tint_symbol_6 = {{1, 2, 3, 3}};
tint_array_wrapper src_function = {{{0}, {0}, {0}, {0}}};
tint_array_wrapper tint_symbol = {{{0}, {0}, {0}, {0}}};
const tint_array_wrapper tint_symbol_6 = {{{1}, {2}, {3}, {3}}};
tint_symbol = tint_symbol_6;
tint_symbol = src_param;
tint_symbol = ret_arr();
const tint_array_wrapper src_let = {{0, 0, 0, 0}};
const tint_array_wrapper src_let = {{{0}, {0}, {0}, {0}}};
tint_symbol = src_let;
tint_symbol = src_function;
tint_symbol = src_private;