dawn-cmake/test/unittest/reader/spirv/SpvModuleScopeVarParserTest_SampleId_I32_Load_AccessChain.spvasm.expected.msl
James Price a5d73ce965 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>
2021-08-04 22:15:28 +00:00

20 lines
445 B
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#include <metal_stdlib>
using namespace metal;
void main_1(thread int* const tint_symbol_1) {
int const x_2 = *(tint_symbol_1);
return;
}
void tint_symbol_inner(uint x_1_param, thread int* const tint_symbol_2) {
*(tint_symbol_2) = as_type<int>(x_1_param);
main_1(tint_symbol_2);
}
fragment void tint_symbol(uint x_1_param [[sample_id]]) {
thread int tint_symbol_3 = 0;
tint_symbol_inner(x_1_param, &(tint_symbol_3));
return;
}