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>
This commit is contained in:
James Price
2021-08-04 22:15:28 +00:00
committed by Tint LUCI CQ
parent 3e92e9f8ba
commit a5d73ce965
3866 changed files with 49323 additions and 26508 deletions

View File

@@ -17,8 +17,8 @@ void main_1() {
const uint scalar_offset = ((16u * uint(0))) / 4;
const int x_32 = asint(x_6[scalar_offset / 4][scalar_offset % 4]);
const int x_34 = idx;
const tint_padded_array_element tint_symbol_3[2] = {{x_30}, {x_32}};
indexable = tint_symbol_3;
const tint_padded_array_element tint_symbol_2[2] = {{x_30}, {x_32}};
indexable = tint_symbol_2;
const int x_36 = indexable[x_34].el;
a = x_36;
const int x_37 = a;
@@ -47,9 +47,15 @@ struct tint_symbol {
float4 x_GLF_color_1 : SV_Target0;
};
tint_symbol main() {
main_out main_inner() {
main_1();
const main_out tint_symbol_1 = {x_GLF_color};
const tint_symbol tint_symbol_4 = {tint_symbol_1.x_GLF_color_1};
return tint_symbol_4;
const main_out tint_symbol_3 = {x_GLF_color};
return tint_symbol_3;
}
tint_symbol main() {
const main_out inner_result = main_inner();
tint_symbol wrapper_result = (tint_symbol)0;
wrapper_result.x_GLF_color_1 = inner_result.x_GLF_color_1;
return wrapper_result;
}

View File

@@ -18,7 +18,7 @@ struct tint_symbol_1 {
float4 x_GLF_color_1 [[color(0)]];
};
void main_1(constant buf1& x_6, thread float4* const tint_symbol_5) {
void main_1(constant buf1& x_6, thread float4* const tint_symbol_4) {
int idx = 0;
int a = 0;
tint_array_wrapper indexable = {};
@@ -27,8 +27,8 @@ void main_1(constant buf1& x_6, thread float4* const tint_symbol_5) {
int const x_30 = x_6.x_GLF_uniform_int_values.arr[1].el;
int const x_32 = x_6.x_GLF_uniform_int_values.arr[0].el;
int const x_34 = idx;
tint_array_wrapper const tint_symbol_3 = {.arr={{.el=x_30}, {.el=x_32}}};
indexable = tint_symbol_3;
tint_array_wrapper const tint_symbol_2 = {.arr={{.el=x_30}, {.el=x_32}}};
indexable = tint_symbol_2;
int const x_36 = indexable.arr[x_34].el;
a = x_36;
int const x_37 = a;
@@ -38,20 +38,26 @@ void main_1(constant buf1& x_6, thread float4* const tint_symbol_5) {
int const x_48 = x_6.x_GLF_uniform_int_values.arr[1].el;
int const x_51 = x_6.x_GLF_uniform_int_values.arr[1].el;
int const x_54 = x_6.x_GLF_uniform_int_values.arr[0].el;
*(tint_symbol_5) = float4(float(x_45), float(x_48), float(x_51), float(x_54));
*(tint_symbol_4) = float4(float(x_45), float(x_48), float(x_51), float(x_54));
} else {
int const x_58 = x_6.x_GLF_uniform_int_values.arr[1].el;
float const x_59 = float(x_58);
*(tint_symbol_5) = float4(x_59, x_59, x_59, x_59);
*(tint_symbol_4) = float4(x_59, x_59, x_59, x_59);
}
return;
}
fragment tint_symbol_1 tint_symbol(constant buf1& x_6 [[buffer(1)]]) {
thread float4 tint_symbol_6 = 0.0f;
main_1(x_6, &(tint_symbol_6));
main_out const tint_symbol_2 = {.x_GLF_color_1=tint_symbol_6};
tint_symbol_1 const tint_symbol_4 = {.x_GLF_color_1=tint_symbol_2.x_GLF_color_1};
return tint_symbol_4;
main_out tint_symbol_inner(constant buf1& x_6, thread float4* const tint_symbol_5) {
main_1(x_6, tint_symbol_5);
main_out const tint_symbol_3 = {.x_GLF_color_1=*(tint_symbol_5)};
return tint_symbol_3;
}
fragment tint_symbol_1 tint_symbol(constant buf1& x_6 [[buffer(1)]]) {
thread float4 tint_symbol_6 = 0.0f;
main_out const inner_result = tint_symbol_inner(x_6, &(tint_symbol_6));
tint_symbol_1 wrapper_result = {};
wrapper_result.x_GLF_color_1 = inner_result.x_GLF_color_1;
return wrapper_result;
}

View File

@@ -17,8 +17,8 @@ void main_1() {
const uint scalar_offset = ((16u * uint(0))) / 4;
const int x_32 = asint(x_6[scalar_offset / 4][scalar_offset % 4]);
const int x_34 = idx;
const tint_padded_array_element tint_symbol_3[2] = {{x_30}, {x_32}};
indexable = tint_symbol_3;
const tint_padded_array_element tint_symbol_2[2] = {{x_30}, {x_32}};
indexable = tint_symbol_2;
const int x_36 = indexable[x_34].el;
a = x_36;
const int x_37 = a;
@@ -47,9 +47,15 @@ struct tint_symbol {
float4 x_GLF_color_1 : SV_Target0;
};
tint_symbol main() {
main_out main_inner() {
main_1();
const main_out tint_symbol_1 = {x_GLF_color};
const tint_symbol tint_symbol_4 = {tint_symbol_1.x_GLF_color_1};
return tint_symbol_4;
const main_out tint_symbol_3 = {x_GLF_color};
return tint_symbol_3;
}
tint_symbol main() {
const main_out inner_result = main_inner();
tint_symbol wrapper_result = (tint_symbol)0;
wrapper_result.x_GLF_color_1 = inner_result.x_GLF_color_1;
return wrapper_result;
}

View File

@@ -18,7 +18,7 @@ struct tint_symbol_1 {
float4 x_GLF_color_1 [[color(0)]];
};
void main_1(constant buf1& x_6, thread float4* const tint_symbol_5) {
void main_1(constant buf1& x_6, thread float4* const tint_symbol_4) {
int idx = 0;
int a = 0;
tint_array_wrapper indexable = {};
@@ -27,8 +27,8 @@ void main_1(constant buf1& x_6, thread float4* const tint_symbol_5) {
int const x_30 = x_6.x_GLF_uniform_int_values.arr[1].el;
int const x_32 = x_6.x_GLF_uniform_int_values.arr[0].el;
int const x_34 = idx;
tint_array_wrapper const tint_symbol_3 = {.arr={{.el=x_30}, {.el=x_32}}};
indexable = tint_symbol_3;
tint_array_wrapper const tint_symbol_2 = {.arr={{.el=x_30}, {.el=x_32}}};
indexable = tint_symbol_2;
int const x_36 = indexable.arr[x_34].el;
a = x_36;
int const x_37 = a;
@@ -38,20 +38,26 @@ void main_1(constant buf1& x_6, thread float4* const tint_symbol_5) {
int const x_48 = x_6.x_GLF_uniform_int_values.arr[1].el;
int const x_51 = x_6.x_GLF_uniform_int_values.arr[1].el;
int const x_54 = x_6.x_GLF_uniform_int_values.arr[0].el;
*(tint_symbol_5) = float4(float(x_45), float(x_48), float(x_51), float(x_54));
*(tint_symbol_4) = float4(float(x_45), float(x_48), float(x_51), float(x_54));
} else {
int const x_58 = x_6.x_GLF_uniform_int_values.arr[1].el;
float const x_59 = float(x_58);
*(tint_symbol_5) = float4(x_59, x_59, x_59, x_59);
*(tint_symbol_4) = float4(x_59, x_59, x_59, x_59);
}
return;
}
fragment tint_symbol_1 tint_symbol(constant buf1& x_6 [[buffer(1)]]) {
thread float4 tint_symbol_6 = 0.0f;
main_1(x_6, &(tint_symbol_6));
main_out const tint_symbol_2 = {.x_GLF_color_1=tint_symbol_6};
tint_symbol_1 const tint_symbol_4 = {.x_GLF_color_1=tint_symbol_2.x_GLF_color_1};
return tint_symbol_4;
main_out tint_symbol_inner(constant buf1& x_6, thread float4* const tint_symbol_5) {
main_1(x_6, tint_symbol_5);
main_out const tint_symbol_3 = {.x_GLF_color_1=*(tint_symbol_5)};
return tint_symbol_3;
}
fragment tint_symbol_1 tint_symbol(constant buf1& x_6 [[buffer(1)]]) {
thread float4 tint_symbol_6 = 0.0f;
main_out const inner_result = tint_symbol_inner(x_6, &(tint_symbol_6));
tint_symbol_1 wrapper_result = {};
wrapper_result.x_GLF_color_1 = inner_result.x_GLF_color_1;
return wrapper_result;
}