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writer/hlsl: Generate padding for UBO padded structs

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Combined with the new PadArrayElements transform, arrays with strides
are now correctly emitted.

Fixed: tint:182
Fixed: tint:895
Change-Id: I26a1be94dee6e4c9d9747c8317a932fc1fb3c810
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54640
Kokoro: Kokoro <noreply+kokoro@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 31936f375f
commit d47eb3a965
16 changed files with 756 additions and 101 deletions
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27
test/array/assign_to_function_var.wgsl.expected.hlsl
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@@ -4,17 +4,24 @@ void unused_entry_point() {
}
struct tint_padded_array_element {
int el;
/* 0x0000 */ int el;
/* 0x0004 */ int tint_pad_0[3];
};
tint_padded_array_element make_tint_padded_array_element(int param_0) {
tint_padded_array_element output;
output.el = param_0;
return output;
}
struct tint_array_wrapper {
tint_padded_array_element arr[4];
/* 0x0000 */ tint_padded_array_element arr[4];
};
struct S {
tint_array_wrapper arr;
/* 0x0000 */ 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 = {{make_tint_padded_array_element(asint(buffer.Load((offset + 0u)))), make_tint_padded_array_element(asint(buffer.Load((offset + 16u)))), make_tint_padded_array_element(asint(buffer.Load((offset + 32u)))), make_tint_padded_array_element(asint(buffer.Load((offset + 48u))))}};
return tint_symbol_3;
}
@@ -24,12 +31,12 @@ 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 = {{make_tint_padded_array_element(0), make_tint_padded_array_element(0), make_tint_padded_array_element(0), make_tint_padded_array_element(0)}};
return tint_symbol_4;
}
S ret_struct_arr() {
const S tint_symbol_5 = {{{{0}, {0}, {0}, {0}}}};
const S tint_symbol_5 = {{{make_tint_padded_array_element(0), make_tint_padded_array_element(0), make_tint_padded_array_element(0), make_tint_padded_array_element(0)}}};
return tint_symbol_5;
}
@@ -44,13 +51,13 @@ 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 = {{make_tint_padded_array_element(0), make_tint_padded_array_element(0), make_tint_padded_array_element(0), make_tint_padded_array_element(0)}};
tint_array_wrapper tint_symbol = {{make_tint_padded_array_element(0), make_tint_padded_array_element(0), make_tint_padded_array_element(0), make_tint_padded_array_element(0)}};
const tint_array_wrapper tint_symbol_6 = {{make_tint_padded_array_element(1), make_tint_padded_array_element(2), make_tint_padded_array_element(3), make_tint_padded_array_element(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 = {{make_tint_padded_array_element(0), make_tint_padded_array_element(0), make_tint_padded_array_element(0), make_tint_padded_array_element(0)}};
tint_symbol = src_let;
tint_symbol = src_function;
tint_symbol = src_private;