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transform: Don't unroll arrays in DecomposeMemoryAccess

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Arrays can be extremely large, and having the load and store functions unroll the elements can make the complier explode.

Fixed: chromium:1229233
Change-Id: Ieb5654254e16f5ce724a205d21d954ef9a0cd053
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/58382
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@chromium.org>
Reviewed-by: David Neto <dneto@google.com>
Auto-Submit: Ben Clayton <bclayton@google.com>
This commit is contained in:
Ben Clayton
2021-07-16 19:47:44 +00:00
committed by Tint LUCI CQ
parent c33503069c
commit 883fb63e01
18 changed files with 476 additions and 368 deletions
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39
test/array/assign_to_function_var.wgsl.expected.hlsl
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@@ -28,27 +28,34 @@ S ret_struct_arr() {
return tint_symbol_6;
}
typedef tint_padded_array_element tint_symbol_2_ret[4];
tint_symbol_2_ret tint_symbol_2(uint4 buffer[4], uint offset) {
const uint scalar_offset = ((offset + 0u)) / 4;
const uint scalar_offset_1 = ((offset + 16u)) / 4;
const uint scalar_offset_2 = ((offset + 32u)) / 4;
const uint scalar_offset_3 = ((offset + 48u)) / 4;
const tint_padded_array_element tint_symbol_7[4] = {{asint(buffer[scalar_offset / 4][scalar_offset % 4])}, {asint(buffer[scalar_offset_1 / 4][scalar_offset_1 % 4])}, {asint(buffer[scalar_offset_2 / 4][scalar_offset_2 % 4])}, {asint(buffer[scalar_offset_3 / 4][scalar_offset_3 % 4])}};
return tint_symbol_7;
typedef tint_padded_array_element tint_symbol_1_ret[4];
tint_symbol_1_ret tint_symbol_1(uint4 buffer[4], uint offset) {
tint_padded_array_element arr_1[4] = (tint_padded_array_element[4])0;
{
for(uint i = 0u; (i < 4u); i = (i + 1u)) {
const uint scalar_offset = ((offset + (i * 16u))) / 4;
arr_1[i].el = asint(buffer[scalar_offset / 4][scalar_offset % 4]);
}
}
return arr_1;
}
typedef tint_padded_array_element tint_symbol_4_ret[4];
tint_symbol_4_ret tint_symbol_4(RWByteAddressBuffer buffer, uint offset) {
const tint_padded_array_element tint_symbol_8[4] = {{asint(buffer.Load((offset + 0u)))}, {asint(buffer.Load((offset + 16u)))}, {asint(buffer.Load((offset + 32u)))}, {asint(buffer.Load((offset + 48u)))}};
return tint_symbol_8;
typedef tint_padded_array_element tint_symbol_3_ret[4];
tint_symbol_3_ret tint_symbol_3(RWByteAddressBuffer buffer, uint offset) {
tint_padded_array_element arr_2[4] = (tint_padded_array_element[4])0;
{
for(uint i_1 = 0u; (i_1 < 4u); i_1 = (i_1 + 1u)) {
arr_2[i_1].el = asint(buffer.Load((offset + (i_1 * 16u))));
}
}
return arr_2;
}
void foo(tint_padded_array_element src_param[4]) {
tint_padded_array_element src_function[4] = (tint_padded_array_element[4])0;
tint_padded_array_element tint_symbol[4] = (tint_padded_array_element[4])0;
const tint_padded_array_element tint_symbol_9[4] = {{1}, {2}, {3}, {3}};
tint_symbol = tint_symbol_9;
const tint_padded_array_element tint_symbol_7[4] = {{1}, {2}, {3}, {3}};
tint_symbol = tint_symbol_7;
tint_symbol = src_param;
tint_symbol = ret_arr();
const tint_padded_array_element src_let[4] = (tint_padded_array_element[4])0;
@@ -57,8 +64,8 @@ void foo(tint_padded_array_element src_param[4]) {
tint_symbol = src_private;
tint_symbol = src_workgroup;
tint_symbol = ret_struct_arr().arr;
tint_symbol = tint_symbol_2(src_uniform, 0u);
tint_symbol = tint_symbol_4(src_storage, 0u);
tint_symbol = tint_symbol_1(src_uniform, 0u);
tint_symbol = tint_symbol_3(src_storage, 0u);
int dst_nested[4][3][2] = (int[4][3][2])0;
int src_nested[4][3][2] = (int[4][3][2])0;
dst_nested = src_nested;