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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>
62 lines
1.7 KiB
Plaintext
62 lines
1.7 KiB
Plaintext
#include <metal_stdlib>
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using namespace metal;
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struct doesNotMatter {
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/* 0x0000 */ int global_seed;
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/* 0x0004 */ int data[1];
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};
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struct buf1 {
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/* 0x0000 */ packed_float2 injectionSwitch;
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};
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void main_1(constant buf1& x_10, device doesNotMatter& x_7, thread uint3* const tint_symbol_1) {
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int lid = 0;
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int val = 0;
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int i = 0;
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uint const x_40 = (*(tint_symbol_1)).x;
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lid = as_type<int>(x_40);
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int const x_43 = x_7.global_seed;
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val = x_43;
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i = 0;
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while (true) {
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int const x_48 = i;
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if ((x_48 < 2)) {
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} else {
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break;
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}
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int const x_51 = lid;
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if ((x_51 > 0)) {
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int const x_55 = lid;
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int const x_58 = x_7.data[as_type<int>((as_type<uint>(x_55) - as_type<uint>(1)))];
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int const x_59 = val;
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val = as_type<int>((as_type<uint>(x_59) + as_type<uint>(x_58)));
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float const x_62 = x_10.injectionSwitch.x;
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if ((x_62 > 100.0f)) {
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break;
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}
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}
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threadgroup_barrier(mem_flags::mem_threadgroup);
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{
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int const x_66 = i;
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i = as_type<int>((as_type<uint>(x_66) + as_type<uint>(1)));
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}
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}
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int const x_68 = lid;
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if ((x_68 == 0)) {
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x_7.data[0] = 42;
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}
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return;
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}
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void tint_symbol_inner(constant buf1& x_10, device doesNotMatter& x_7, uint3 gl_LocalInvocationID_param, thread uint3* const tint_symbol_2) {
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*(tint_symbol_2) = gl_LocalInvocationID_param;
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main_1(x_10, x_7, tint_symbol_2);
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}
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kernel void tint_symbol(uint3 gl_LocalInvocationID_param [[thread_position_in_threadgroup]], constant buf1& x_10 [[buffer(1)]], device doesNotMatter& x_7 [[buffer(0)]]) {
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thread uint3 tint_symbol_3 = 0u;
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tint_symbol_inner(x_10, x_7, gl_LocalInvocationID_param, &(tint_symbol_3));
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return;
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}
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