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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>
121 lines
3.2 KiB
Plaintext
121 lines
3.2 KiB
Plaintext
#include <metal_stdlib>
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using namespace metal;
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struct buf0 {
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/* 0x0000 */ packed_float2 injectionSwitch;
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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 buf0& x_8, thread float4* const tint_symbol_3, thread float4* const tint_symbol_4) {
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int odd_index = 0;
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int even_index = 0;
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int j = 0;
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int ll = 0;
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bool x_59 = false;
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bool x_60_phi = false;
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*(tint_symbol_3) = float4(1.0f, 0.0f, 0.0f, 1.0f);
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float const x_53 = (*(tint_symbol_4)).x;
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bool const x_54 = (x_53 < 128.0f);
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x_60_phi = x_54;
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if (x_54) {
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float const x_58 = (*(tint_symbol_4)).y;
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x_59 = (x_58 < 128.0f);
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x_60_phi = x_59;
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}
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bool const x_60 = x_60_phi;
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if (x_60) {
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return;
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}
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odd_index = 0;
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while (true) {
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int const x_11 = odd_index;
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if ((x_11 <= 1)) {
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} else {
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break;
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}
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float const x_70 = (*(tint_symbol_3)).x;
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(*(tint_symbol_3)).x = (x_70 + 0.25f);
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int const x_12 = odd_index;
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odd_index = as_type<int>((as_type<uint>(x_12) + as_type<uint>(1)));
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}
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even_index = 1;
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while (true) {
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int const x_14 = even_index;
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if ((x_14 >= 0)) {
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} else {
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break;
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}
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float const x_80 = (*(tint_symbol_3)).x;
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(*(tint_symbol_3)).x = (x_80 + 0.25f);
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float const x_84 = x_8.injectionSwitch.x;
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float const x_86 = x_8.injectionSwitch.y;
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if ((x_84 > x_86)) {
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continue;
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}
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int const x_15 = even_index;
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if ((x_15 >= 1)) {
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discard_fragment();
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}
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j = 1;
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while (true) {
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if (true) {
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} else {
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break;
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}
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int const x_16 = ll;
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if ((x_16 >= 3)) {
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break;
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}
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int const x_17 = ll;
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ll = as_type<int>((as_type<uint>(x_17) + as_type<uint>(1)));
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int const x_19 = j;
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if ((as_type<uint>(x_19) < 1u)) {
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{
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int const x_20 = j;
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j = as_type<int>((as_type<uint>(x_20) + as_type<uint>(1)));
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}
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continue;
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}
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float const x_106 = x_8.injectionSwitch.x;
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float const x_108 = x_8.injectionSwitch.y;
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if ((x_106 > x_108)) {
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break;
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}
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{
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int const x_20 = j;
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j = as_type<int>((as_type<uint>(x_20) + as_type<uint>(1)));
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}
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}
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float const x_113 = x_8.injectionSwitch.x;
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float const x_115 = x_8.injectionSwitch.y;
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if ((x_113 > x_115)) {
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*(tint_symbol_3) = float4(1.0f, 1.0f, 1.0f, 1.0f);
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}
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int const x_22 = even_index;
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even_index = as_type<int>((as_type<uint>(x_22) - as_type<uint>(1)));
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}
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return;
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}
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main_out tint_symbol_inner(constant buf0& x_8, float4 gl_FragCoord_param, thread float4* const tint_symbol_5, thread float4* const tint_symbol_6) {
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*(tint_symbol_5) = gl_FragCoord_param;
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main_1(x_8, tint_symbol_6, tint_symbol_5);
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main_out const tint_symbol_2 = {.x_GLF_color_1=*(tint_symbol_6)};
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return tint_symbol_2;
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}
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fragment tint_symbol_1 tint_symbol(float4 gl_FragCoord_param [[position]], constant buf0& x_8 [[buffer(0)]]) {
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thread float4 tint_symbol_7 = 0.0f;
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thread float4 tint_symbol_8 = 0.0f;
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main_out const inner_result = tint_symbol_inner(x_8, gl_FragCoord_param, &(tint_symbol_7), &(tint_symbol_8));
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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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