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https://github.com/encounter/dawn-cmake.git
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a5d73ce965
This is a major reworking of this transform. The old transform code was getting unwieldy, with part of the complication coming from the handling of multiple return statements. By generating a wrapper function instead, we can avoid a lot of this complexity. The original entry point function is stripped of all shader IO attributes (as well as `stage` and `workgroup_size`), but the body is left unmodified. A new entry point wrapper function is introduced which calls the original function, packing/unpacking the shader inputs as necessary, and propagates the result to the corresponding shader outputs. The new code has been refactored to use a state object with the different parts of the transform split into separate functions, which makes it much more manageable. Fixed: tint:1076 Bug: tint:920 Change-Id: I3490a0ea7a3509a4e198ce730e476516649d8d96 Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/60521 Auto-Submit: James Price <jrprice@google.com> Kokoro: Kokoro <noreply+kokoro@google.com> Commit-Queue: James Price <jrprice@google.com> Reviewed-by: Ben Clayton <bclayton@google.com>
107 lines
3.9 KiB
Plaintext
107 lines
3.9 KiB
Plaintext
#include <metal_stdlib>
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using namespace metal;
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struct tint_padded_array_element {
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/* 0x0000 */ int el;
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/* 0x0004 */ int8_t tint_pad[12];
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};
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struct tint_array_wrapper {
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/* 0x0000 */ tint_padded_array_element arr[12];
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};
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struct buf1 {
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/* 0x0000 */ tint_array_wrapper x_GLF_uniform_int_values;
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};
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struct tint_padded_array_element_1 {
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/* 0x0000 */ float el;
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/* 0x0004 */ int8_t tint_pad_1[12];
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};
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struct tint_array_wrapper_1 {
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/* 0x0000 */ tint_padded_array_element_1 arr[1];
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};
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struct buf0 {
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/* 0x0000 */ tint_array_wrapper_1 x_GLF_uniform_float_values;
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};
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struct main_out {
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float4 x_GLF_color_1;
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};
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struct tint_symbol_1 {
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float4 x_GLF_color_1 [[color(0)]];
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};
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void main_1(constant buf1& x_6, constant buf0& x_15, thread float4* const tint_symbol_3) {
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float3x4 m0 = float3x4(0.0f);
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float3x4 m1 = float3x4(0.0f);
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float3 undefined = 0.0f;
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float3 defined = 0.0f;
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float4 v0 = 0.0f;
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float4 v1 = 0.0f;
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float4 v2 = 0.0f;
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float4 v3 = 0.0f;
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int const x_17 = x_6.x_GLF_uniform_int_values.arr[4].el;
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int const x_18 = x_6.x_GLF_uniform_int_values.arr[5].el;
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int const x_19 = x_6.x_GLF_uniform_int_values.arr[6].el;
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int const x_20 = x_6.x_GLF_uniform_int_values.arr[10].el;
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int const x_21 = x_6.x_GLF_uniform_int_values.arr[7].el;
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int const x_22 = x_6.x_GLF_uniform_int_values.arr[8].el;
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int const x_23 = x_6.x_GLF_uniform_int_values.arr[11].el;
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int const x_24 = x_6.x_GLF_uniform_int_values.arr[1].el;
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int const x_25 = x_6.x_GLF_uniform_int_values.arr[2].el;
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int const x_26 = x_6.x_GLF_uniform_int_values.arr[3].el;
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m0 = float3x4(float4(float(x_17), float(x_18), float(x_19), 4.0f), float4(float(x_20), float(x_21), float(x_22), 8.0f), float4(float(x_23), float(x_24), float(x_25), float(x_26)));
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int const x_27 = x_6.x_GLF_uniform_int_values.arr[4].el;
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float const x_104 = float(x_27);
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m1 = float3x4(float4(x_104, 0.0f, 0.0f, 0.0f), float4(0.0f, x_104, 0.0f, 0.0f), float4(0.0f, 0.0f, x_104, 0.0f));
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undefined = ldexp(float3(1.0f, 1.0f, 1.0f), int3(500, 500, 500));
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int const x_28 = x_6.x_GLF_uniform_int_values.arr[4].el;
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float const x_111 = float(x_28);
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int const x_29 = x_6.x_GLF_uniform_int_values.arr[0].el;
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defined = ldexp(float3(x_111, x_111, x_111), int3(x_29, x_29, x_29));
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float3x4 const x_116 = m0;
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float3 const x_117 = undefined;
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v0 = (x_116 * x_117);
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float3x4 const x_119 = m1;
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float3 const x_120 = undefined;
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v1 = (x_119 * x_120);
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float3x4 const x_122 = m0;
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float3 const x_123 = defined;
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v2 = (x_122 * x_123);
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float3x4 const x_125 = m1;
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float3 const x_126 = defined;
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v3 = (x_125 * x_126);
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float const x_129 = v2.x;
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float const x_131 = v3.x;
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if ((x_129 > x_131)) {
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int const x_30 = x_6.x_GLF_uniform_int_values.arr[4].el;
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int const x_31 = x_6.x_GLF_uniform_int_values.arr[9].el;
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int const x_32 = x_6.x_GLF_uniform_int_values.arr[9].el;
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int const x_33 = x_6.x_GLF_uniform_int_values.arr[4].el;
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*(tint_symbol_3) = float4(float(x_30), float(x_31), float(x_32), float(x_33));
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} else {
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int const x_34 = x_6.x_GLF_uniform_int_values.arr[9].el;
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float const x_146 = float(x_34);
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*(tint_symbol_3) = float4(x_146, x_146, x_146, x_146);
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}
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float const x_149 = v0.x;
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float const x_151 = v1.x;
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if ((x_149 < x_151)) {
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float const x_156 = x_15.x_GLF_uniform_float_values.arr[0].el;
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(*(tint_symbol_3)).y = x_156;
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}
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return;
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}
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main_out tint_symbol_inner(constant buf1& x_6, constant buf0& x_15, thread float4* const tint_symbol_4) {
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main_1(x_6, x_15, tint_symbol_4);
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main_out const tint_symbol_2 = {.x_GLF_color_1=*(tint_symbol_4)};
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return tint_symbol_2;
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}
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fragment tint_symbol_1 tint_symbol(constant buf1& x_6 [[buffer(1)]], constant buf0& x_15 [[buffer(0)]]) {
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thread float4 tint_symbol_5 = 0.0f;
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main_out const inner_result = tint_symbol_inner(x_6, x_15, &(tint_symbol_5));
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tint_symbol_1 wrapper_result = {};
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wrapper_result.x_GLF_color_1 = inner_result.x_GLF_color_1;
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return wrapper_result;
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}
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