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transform/shader_io: Generate a wrapper function
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>
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Tint LUCI CQ
parent
3e92e9f8ba
commit
a5d73ce965
@@ -68,9 +68,15 @@ struct tint_symbol {
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float4 x_GLF_color_1 : SV_Target0;
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};
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tint_symbol main() {
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main_out main_inner() {
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main_1();
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const main_out tint_symbol_1 = {x_GLF_color};
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const tint_symbol tint_symbol_5 = {tint_symbol_1.x_GLF_color_1};
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return tint_symbol_5;
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const main_out tint_symbol_4 = {x_GLF_color};
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return tint_symbol_4;
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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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@@ -31,10 +31,10 @@ 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_7, constant buf0& x_10, constant buf2& x_12, thread int* const tint_symbol_4, thread float4* const tint_symbol_5) {
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void main_1(constant buf1& x_7, constant buf0& x_10, constant buf2& x_12, thread int* const tint_symbol_3, thread float4* const tint_symbol_4) {
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float f = 0.0f;
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int r = 0;
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*(tint_symbol_4) = 0;
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*(tint_symbol_3) = 0;
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float const x_42 = x_7.x_GLF_uniform_float_values.arr[0].el;
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f = x_42;
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int const x_44 = x_10.x_GLF_uniform_int_values.arr[1].el;
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@@ -46,8 +46,8 @@ void main_1(constant buf1& x_7, constant buf0& x_10, constant buf2& x_12, thread
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} else {
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break;
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}
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int const x_54 = *(tint_symbol_4);
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*(tint_symbol_4) = as_type<int>((as_type<uint>(x_54) + as_type<uint>(1)));
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int const x_54 = *(tint_symbol_3);
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*(tint_symbol_3) = as_type<int>((as_type<uint>(x_54) + as_type<uint>(1)));
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float2 const x_57 = x_12.injectionSwitch;
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float const x_60 = f;
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f = (x_60 + dfdx(x_57).y);
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@@ -57,13 +57,13 @@ void main_1(constant buf1& x_7, constant buf0& x_10, constant buf2& x_12, thread
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}
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}
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while (true) {
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int const x_68 = *(tint_symbol_4);
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int const x_68 = *(tint_symbol_3);
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if ((x_68 < 100)) {
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} else {
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break;
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}
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int const x_71 = *(tint_symbol_4);
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*(tint_symbol_4) = as_type<int>((as_type<uint>(x_71) + as_type<uint>(1)));
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int const x_71 = *(tint_symbol_3);
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*(tint_symbol_3) = as_type<int>((as_type<uint>(x_71) + as_type<uint>(1)));
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float const x_74 = x_7.x_GLF_uniform_float_values.arr[0].el;
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float const x_75 = f;
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f = (x_75 + x_74);
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@@ -75,21 +75,27 @@ void main_1(constant buf1& x_7, constant buf0& x_10, constant buf2& x_12, thread
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int const x_88 = x_10.x_GLF_uniform_int_values.arr[1].el;
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int const x_91 = x_10.x_GLF_uniform_int_values.arr[1].el;
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int const x_94 = x_10.x_GLF_uniform_int_values.arr[0].el;
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*(tint_symbol_5) = float4(float(x_85), float(x_88), float(x_91), float(x_94));
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*(tint_symbol_4) = float4(float(x_85), float(x_88), float(x_91), float(x_94));
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} else {
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int const x_98 = x_10.x_GLF_uniform_int_values.arr[1].el;
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float const x_99 = float(x_98);
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*(tint_symbol_5) = float4(x_99, x_99, x_99, x_99);
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*(tint_symbol_4) = float4(x_99, x_99, x_99, x_99);
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}
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return;
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}
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fragment tint_symbol_1 tint_symbol(constant buf1& x_7 [[buffer(1)]], constant buf0& x_10 [[buffer(0)]], constant buf2& x_12 [[buffer(2)]]) {
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thread int tint_symbol_6 = 0;
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thread float4 tint_symbol_7 = 0.0f;
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main_1(x_7, x_10, x_12, &(tint_symbol_6), &(tint_symbol_7));
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main_out const tint_symbol_2 = {.x_GLF_color_1=tint_symbol_7};
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tint_symbol_1 const tint_symbol_3 = {.x_GLF_color_1=tint_symbol_2.x_GLF_color_1};
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return tint_symbol_3;
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main_out tint_symbol_inner(constant buf1& x_7, constant buf0& x_10, constant buf2& x_12, thread int* const tint_symbol_5, thread float4* const tint_symbol_6) {
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main_1(x_7, x_10, x_12, tint_symbol_5, tint_symbol_6);
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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(constant buf1& x_7 [[buffer(1)]], constant buf0& x_10 [[buffer(0)]], constant buf2& x_12 [[buffer(2)]]) {
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thread int tint_symbol_7 = 0;
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thread float4 tint_symbol_8 = 0.0f;
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main_out const inner_result = tint_symbol_inner(x_7, x_10, x_12, &(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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@@ -68,9 +68,15 @@ struct tint_symbol {
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float4 x_GLF_color_1 : SV_Target0;
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};
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tint_symbol main() {
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main_out main_inner() {
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main_1();
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const main_out tint_symbol_1 = {x_GLF_color};
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const tint_symbol tint_symbol_5 = {tint_symbol_1.x_GLF_color_1};
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return tint_symbol_5;
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const main_out tint_symbol_4 = {x_GLF_color};
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return tint_symbol_4;
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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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@@ -31,10 +31,10 @@ 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_7, constant buf0& x_10, constant buf2& x_12, thread int* const tint_symbol_4, thread float4* const tint_symbol_5) {
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void main_1(constant buf1& x_7, constant buf0& x_10, constant buf2& x_12, thread int* const tint_symbol_3, thread float4* const tint_symbol_4) {
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float f = 0.0f;
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int r = 0;
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*(tint_symbol_4) = 0;
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*(tint_symbol_3) = 0;
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float const x_42 = x_7.x_GLF_uniform_float_values.arr[0].el;
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f = x_42;
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int const x_44 = x_10.x_GLF_uniform_int_values.arr[1].el;
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@@ -46,8 +46,8 @@ void main_1(constant buf1& x_7, constant buf0& x_10, constant buf2& x_12, thread
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} else {
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break;
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}
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int const x_54 = *(tint_symbol_4);
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*(tint_symbol_4) = as_type<int>((as_type<uint>(x_54) + as_type<uint>(1)));
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int const x_54 = *(tint_symbol_3);
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*(tint_symbol_3) = as_type<int>((as_type<uint>(x_54) + as_type<uint>(1)));
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float2 const x_57 = x_12.injectionSwitch;
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float const x_60 = f;
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f = (x_60 + dfdx(x_57).y);
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@@ -57,13 +57,13 @@ void main_1(constant buf1& x_7, constant buf0& x_10, constant buf2& x_12, thread
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}
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}
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while (true) {
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int const x_68 = *(tint_symbol_4);
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int const x_68 = *(tint_symbol_3);
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if ((x_68 < 100)) {
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} else {
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break;
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}
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int const x_71 = *(tint_symbol_4);
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*(tint_symbol_4) = as_type<int>((as_type<uint>(x_71) + as_type<uint>(1)));
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int const x_71 = *(tint_symbol_3);
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*(tint_symbol_3) = as_type<int>((as_type<uint>(x_71) + as_type<uint>(1)));
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float const x_74 = x_7.x_GLF_uniform_float_values.arr[0].el;
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float const x_75 = f;
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f = (x_75 + x_74);
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@@ -75,21 +75,27 @@ void main_1(constant buf1& x_7, constant buf0& x_10, constant buf2& x_12, thread
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int const x_88 = x_10.x_GLF_uniform_int_values.arr[1].el;
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int const x_91 = x_10.x_GLF_uniform_int_values.arr[1].el;
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int const x_94 = x_10.x_GLF_uniform_int_values.arr[0].el;
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*(tint_symbol_5) = float4(float(x_85), float(x_88), float(x_91), float(x_94));
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*(tint_symbol_4) = float4(float(x_85), float(x_88), float(x_91), float(x_94));
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} else {
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int const x_98 = x_10.x_GLF_uniform_int_values.arr[1].el;
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float const x_99 = float(x_98);
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*(tint_symbol_5) = float4(x_99, x_99, x_99, x_99);
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*(tint_symbol_4) = float4(x_99, x_99, x_99, x_99);
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}
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return;
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}
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fragment tint_symbol_1 tint_symbol(constant buf1& x_7 [[buffer(1)]], constant buf0& x_10 [[buffer(0)]], constant buf2& x_12 [[buffer(2)]]) {
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thread int tint_symbol_6 = 0;
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thread float4 tint_symbol_7 = 0.0f;
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main_1(x_7, x_10, x_12, &(tint_symbol_6), &(tint_symbol_7));
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main_out const tint_symbol_2 = {.x_GLF_color_1=tint_symbol_7};
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tint_symbol_1 const tint_symbol_3 = {.x_GLF_color_1=tint_symbol_2.x_GLF_color_1};
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return tint_symbol_3;
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main_out tint_symbol_inner(constant buf1& x_7, constant buf0& x_10, constant buf2& x_12, thread int* const tint_symbol_5, thread float4* const tint_symbol_6) {
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main_1(x_7, x_10, x_12, tint_symbol_5, tint_symbol_6);
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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(constant buf1& x_7 [[buffer(1)]], constant buf0& x_10 [[buffer(0)]], constant buf2& x_12 [[buffer(2)]]) {
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thread int tint_symbol_7 = 0;
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thread float4 tint_symbol_8 = 0.0f;
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main_out const inner_result = tint_symbol_inner(x_7, x_10, x_12, &(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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