mirror of
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>
80 lines
2.0 KiB
HLSL
80 lines
2.0 KiB
HLSL
static int x_GLF_global_loop_count = 0;
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cbuffer cbuffer_x_7 : register(b0, space0) {
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uint4 x_7[3];
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};
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static float4 x_GLF_color = float4(0.0f, 0.0f, 0.0f, 0.0f);
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int func_() {
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while (true) {
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if ((x_GLF_global_loop_count < 100)) {
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} else {
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break;
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}
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x_GLF_global_loop_count = (x_GLF_global_loop_count + 1);
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const uint scalar_offset = ((16u * uint(0))) / 4;
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const int x_78 = asint(x_7[scalar_offset / 4][scalar_offset % 4]);
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return x_78;
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}
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const int x_80 = asint(x_7[2].x);
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return x_80;
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}
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void main_1() {
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int a = 0;
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x_GLF_global_loop_count = 0;
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while (true) {
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x_GLF_global_loop_count = (x_GLF_global_loop_count + 1);
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if (false) {
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return;
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}
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{
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bool tint_tmp = true;
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if (tint_tmp) {
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tint_tmp = (x_GLF_global_loop_count < 100);
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}
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if ((tint_tmp)) {
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} else {
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break;
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}
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}
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}
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const int x_42 = func_();
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a = x_42;
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const int x_43 = a;
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const int x_45 = asint(x_7[2].x);
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if ((x_43 == x_45)) {
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const uint scalar_offset_1 = ((16u * uint(0))) / 4;
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const int x_51 = asint(x_7[scalar_offset_1 / 4][scalar_offset_1 % 4]);
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const int x_54 = asint(x_7[1].x);
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const int x_57 = asint(x_7[1].x);
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const uint scalar_offset_2 = ((16u * uint(0))) / 4;
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const int x_60 = asint(x_7[scalar_offset_2 / 4][scalar_offset_2 % 4]);
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x_GLF_color = float4(float(x_51), float(x_54), float(x_57), float(x_60));
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} else {
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const int x_64 = asint(x_7[1].x);
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const float x_65 = float(x_64);
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x_GLF_color = float4(x_65, x_65, x_65, x_65);
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}
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return;
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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 {
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float4 x_GLF_color_1 : SV_Target0;
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};
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main_out main_inner() {
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main_1();
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const main_out tint_symbol_2 = {x_GLF_color};
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return tint_symbol_2;
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}
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tint_symbol main() {
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const main_out inner_result = main_inner();
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tint_symbol wrapper_result = (tint_symbol)0;
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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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