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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>
127 lines
3.4 KiB
Plaintext
127 lines
3.4 KiB
Plaintext
#include <metal_stdlib>
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using namespace metal;
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struct S {
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int a;
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int b;
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int c;
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};
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struct buf0 {
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/* 0x0000 */ int one;
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};
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struct tint_array_wrapper {
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S arr[2];
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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_10, thread float4* const tint_symbol_3) {
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int x_43 = 0;
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bool x_44 = false;
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tint_array_wrapper arr = {};
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S param = {};
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int param_1 = 0;
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while (true) {
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int x_50 = 0;
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x_50 = x_10.one;
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arr.arr[x_50].a = 2;
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int const x_53 = arr.arr[1].a;
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if ((x_53 < 1)) {
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*(tint_symbol_3) = float4(0.0f, 0.0f, 0.0f, 0.0f);
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x_44 = true;
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break;
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} else {
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S const x_60 = arr.arr[1];
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param = x_60;
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param_1 = as_type<int>((as_type<uint>(2) + as_type<uint>(as_type<int>(x_50))));
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int const x_61 = param_1;
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S const x_63 = param;
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S x_64_1 = x_63;
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x_64_1.a = x_61;
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S const x_64 = x_64_1;
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param = x_64;
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S const x_65 = param;
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if ((x_65.a == 2)) {
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S const x_70 = param;
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S x_71_1 = x_70;
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x_71_1.a = 9;
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S const x_71 = x_71_1;
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param = x_71;
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}
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int const x_72 = param_1;
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S const x_75 = param;
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S x_76_1 = x_75;
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x_76_1.b = as_type<int>((as_type<uint>(x_72) + as_type<uint>(1)));
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S const x_76 = x_76_1;
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param = x_76;
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int const x_77 = param_1;
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S const x_80 = param;
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S x_81_1 = x_80;
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x_81_1.c = as_type<int>((as_type<uint>(x_77) + as_type<uint>(2)));
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S const x_81 = x_81_1;
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param = x_81;
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S const x_82 = param;
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if ((x_82.b == 2)) {
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S const x_87 = param;
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S x_88_1 = x_87;
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x_88_1.b = 7;
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S const x_88 = x_88_1;
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param = x_88;
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}
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S const x_89 = param;
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S const x_91 = param;
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S const x_94 = param;
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x_43 = as_type<int>((as_type<uint>(as_type<int>((as_type<uint>(x_89.a) + as_type<uint>(x_91.b)))) + as_type<uint>(x_94.c)));
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int const x_97 = x_43;
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if ((x_97 == 12)) {
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*(tint_symbol_3) = float4(1.0f, 0.0f, 0.0f, 1.0f);
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} else {
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*(tint_symbol_3) = float4(0.0f, 0.0f, 0.0f, 0.0f);
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}
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}
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x_44 = true;
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break;
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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_10, thread float4* const tint_symbol_4) {
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main_1(x_10, 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_10 [[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_10, &(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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int func_struct_S_i1_i1_i11_i1_(thread S* const s, thread int* const x) {
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int const x_103 = *(x);
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(*(s)).a = x_103;
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int const x_105 = (*(s)).a;
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if ((x_105 == 2)) {
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(*(s)).a = 9;
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}
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int const x_109 = *(x);
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(*(s)).b = as_type<int>((as_type<uint>(x_109) + as_type<uint>(1)));
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int const x_112 = *(x);
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(*(s)).c = as_type<int>((as_type<uint>(x_112) + as_type<uint>(2)));
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int const x_115 = (*(s)).b;
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if ((x_115 == 2)) {
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(*(s)).b = 7;
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}
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int const x_119 = (*(s)).a;
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int const x_120 = (*(s)).b;
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int const x_122 = (*(s)).c;
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return as_type<int>((as_type<uint>(as_type<int>((as_type<uint>(x_119) + as_type<uint>(x_120)))) + as_type<uint>(x_122)));
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}
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