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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>
119 lines
2.7 KiB
Plaintext
119 lines
2.7 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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float makeFrame_(constant buf0& x_6) {
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float x_60 = 0.0f;
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float x_63_phi = 0.0f;
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while (true) {
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bool x_41 = false;
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float x_44 = 0.0f;
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float x_45 = 0.0f;
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bool x_42 = false;
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bool x_41_phi = false;
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int x_8_phi = 0;
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float x_44_phi = 0.0f;
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float x_60_phi = 0.0f;
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bool x_61_phi = false;
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x_41_phi = false;
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x_8_phi = 0;
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x_44_phi = 0.0f;
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while (true) {
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float x_50 = 0.0f;
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int x_9 = 0;
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bool x_52 = false;
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int x_7 = 0;
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float x_50_phi = 0.0f;
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int x_9_phi = 0;
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bool x_52_phi = false;
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float x_45_phi = 0.0f;
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bool x_42_phi = false;
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x_41 = x_41_phi;
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int const x_8 = x_8_phi;
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x_44 = x_44_phi;
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x_60_phi = x_44;
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x_61_phi = x_41;
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if ((x_8 < 1)) {
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} else {
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break;
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}
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x_50_phi = x_44;
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x_9_phi = x_8;
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x_52_phi = x_41;
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while (true) {
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x_50 = x_50_phi;
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x_9 = x_9_phi;
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x_52 = x_52_phi;
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float const x_54 = x_6.injectionSwitch.y;
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x_45_phi = x_50;
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x_42_phi = x_52;
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if ((1 < int(x_54))) {
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} else {
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break;
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}
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x_45_phi = 1.0f;
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x_42_phi = true;
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break;
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{
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x_50_phi = 0.0f;
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x_9_phi = 0;
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x_52_phi = false;
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}
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}
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x_45 = x_45_phi;
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x_42 = x_42_phi;
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x_60_phi = x_45;
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x_61_phi = x_42;
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if (x_42) {
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break;
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}
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{
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x_7 = as_type<int>(as_type<int>((as_type<uint>(x_9) + as_type<uint>(as_type<int>(1)))));
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x_41_phi = x_42;
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x_8_phi = x_7;
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x_44_phi = x_45;
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}
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}
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x_60 = x_60_phi;
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bool const x_61 = x_61_phi;
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x_63_phi = x_60;
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if (x_61) {
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break;
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}
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x_63_phi = 1.0f;
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break;
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}
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float const x_63 = x_63_phi;
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return x_63;
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}
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void main_1(constant buf0& x_6, thread float4* const tint_symbol_3) {
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float const x_34 = makeFrame_(x_6);
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*(tint_symbol_3) = float4(1.0f, 0.0f, 0.0f, 1.0f);
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return;
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}
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main_out tint_symbol_inner(constant buf0& x_6, thread float4* const tint_symbol_4) {
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main_1(x_6, 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 buf0& x_6 [[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, &(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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