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bc5d8f6bcf
This reverts commit 11d09f2fe7c006b78f7319e876e4ced43f0c1a60. Reason for revert: Failing roll of Tint to Dawn: https://dawn-review.googlesource.com/c/dawn/+/70100 Original change's description: > HLSL: force FXC to never unroll loops > > Emit the "[loop]" attribute on "for" and "while" so that FXC does not > attempt to unroll them. This is to work around an FXC bug where it fails > to unroll loops with gradient operations. > > FXC ostensibly unrolls such loops because gradient operations require > uniform control flow, and loops that have varying iterations may > possibly not be uniform. Tint will eventually validate that control flow > is indeed uniform, so forcing FXC to avoid unrolling in these cases > should be fine. > > Bug: tint:1112 > Change-Id: I10077f8b62fbbb230a0003f3864c75a8fe0e1d18 > Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/69880 > Kokoro: Kokoro <noreply+kokoro@google.com> > Reviewed-by: Ben Clayton <bclayton@google.com> > Commit-Queue: Antonio Maiorano <amaiorano@google.com> # Not skipping CQ checks because original CL landed > 1 day ago. Bug: tint:1112 Change-Id: I8e8f3c0abfa6e6bc5d0e67af9428a46ef867d5c1 Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/70540 Reviewed-by: Antonio Maiorano <amaiorano@google.com> Reviewed-by: Ben Clayton <bclayton@google.com> Kokoro: Kokoro <noreply+kokoro@google.com> Commit-Queue: Antonio Maiorano <amaiorano@google.com>
73 lines
2.2 KiB
HLSL
73 lines
2.2 KiB
HLSL
[numthreads(1, 1, 1)]
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void unused_entry_point() {
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return;
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}
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struct tint_padded_array_element {
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int el;
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};
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struct S {
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tint_padded_array_element arr[4];
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};
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static tint_padded_array_element src_private[4] = (tint_padded_array_element[4])0;
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groupshared tint_padded_array_element src_workgroup[4];
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cbuffer cbuffer_src_uniform : register(b0, space0) {
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uint4 src_uniform[4];
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};
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RWByteAddressBuffer src_storage : register(u1, space0);
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typedef tint_padded_array_element ret_arr_ret[4];
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ret_arr_ret ret_arr() {
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const tint_padded_array_element tint_symbol_5[4] = (tint_padded_array_element[4])0;
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return tint_symbol_5;
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}
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S ret_struct_arr() {
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const S tint_symbol_6 = (S)0;
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return tint_symbol_6;
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}
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typedef tint_padded_array_element tint_symbol_1_ret[4];
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tint_symbol_1_ret tint_symbol_1(uint4 buffer[4], uint offset) {
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tint_padded_array_element arr_1[4] = (tint_padded_array_element[4])0;
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{
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for(uint i = 0u; (i < 4u); i = (i + 1u)) {
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const uint scalar_offset = ((offset + (i * 16u))) / 4;
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arr_1[i].el = asint(buffer[scalar_offset / 4][scalar_offset % 4]);
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}
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}
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return arr_1;
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}
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typedef tint_padded_array_element tint_symbol_3_ret[4];
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tint_symbol_3_ret tint_symbol_3(RWByteAddressBuffer buffer, uint offset) {
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tint_padded_array_element arr_2[4] = (tint_padded_array_element[4])0;
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{
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for(uint i_1 = 0u; (i_1 < 4u); i_1 = (i_1 + 1u)) {
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arr_2[i_1].el = asint(buffer.Load((offset + (i_1 * 16u))));
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}
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}
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return arr_2;
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}
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void foo(tint_padded_array_element src_param[4]) {
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tint_padded_array_element src_function[4] = (tint_padded_array_element[4])0;
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tint_padded_array_element tint_symbol[4] = (tint_padded_array_element[4])0;
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const tint_padded_array_element tint_symbol_7[4] = {{1}, {2}, {3}, {3}};
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tint_symbol = tint_symbol_7;
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tint_symbol = src_param;
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tint_symbol = ret_arr();
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const tint_padded_array_element src_let[4] = (tint_padded_array_element[4])0;
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tint_symbol = src_let;
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tint_symbol = src_function;
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tint_symbol = src_private;
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tint_symbol = src_workgroup;
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tint_symbol = ret_struct_arr().arr;
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tint_symbol = tint_symbol_1(src_uniform, 0u);
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tint_symbol = tint_symbol_3(src_storage, 0u);
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int dst_nested[4][3][2] = (int[4][3][2])0;
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int src_nested[4][3][2] = (int[4][3][2])0;
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dst_nested = src_nested;
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}
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