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Instead allow the const to be converted and each time it is const evaluated as part of another expression. This allows an abstract const to be used as a different type depending on the context. A consequence of this is that abstract types may now find their way to the validation stage, which we don't want. We therefore additionally now ensure that the compact pass removes global constants of abstract types. This will have no *functional* effect on shaders generated by the backends, as the expressions belonging to the abstract consts in the IR will not actually be used, as any usage in the input shader will have been const-evaluated away. Certain unused const declarations will now be removed, however, as can be seen by the effect on the snapshot outputs.
44 lines
1.4 KiB
Plaintext
44 lines
1.4 KiB
Plaintext
// language: metal1.0
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#include <metal_stdlib>
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#include <simd/simd.h>
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using metal::uint;
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struct Foo {
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metal::float4 a;
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int b;
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};
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struct type_5 {
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metal::float2x2 inner[1];
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};
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struct type_9 {
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Foo inner[3];
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};
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struct type_11 {
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int inner[4];
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};
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constant metal::float2x2 const3_ = metal::float2x2(metal::float2(0.0, 1.0), metal::float2(2.0, 3.0));
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constant type_5 const4_ = type_5 {metal::float2x2(metal::float2(0.0, 1.0), metal::float2(2.0, 3.0))};
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constant bool cz0_ = bool {};
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constant int cz1_ = int {};
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constant uint cz2_ = uint {};
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constant float cz3_ = float {};
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constant metal::uint2 cz4_ = metal::uint2 {};
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constant metal::float2x2 cz5_ = metal::float2x2 {};
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constant type_9 cz6_ = type_9 {};
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constant Foo cz7_ = Foo {};
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kernel void main_(
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) {
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Foo foo = {};
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foo = Foo {metal::float4(1.0), 1};
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metal::float2x2 m0_ = metal::float2x2(metal::float2(1.0, 0.0), metal::float2(0.0, 1.0));
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metal::float4x4 m1_ = metal::float4x4(metal::float4(1.0, 0.0, 0.0, 0.0), metal::float4(0.0, 1.0, 0.0, 0.0), metal::float4(0.0, 0.0, 1.0, 0.0), metal::float4(0.0, 0.0, 0.0, 1.0));
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metal::uint2 cit0_ = metal::uint2(0u);
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metal::float2x2 cit1_ = metal::float2x2(metal::float2(0.0), metal::float2(0.0));
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type_11 cit2_ = type_11 {0, 1, 2, 3};
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metal::uint2 ic4_ = metal::uint2(0u, 0u);
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metal::float2x3 ic5_ = metal::float2x3(metal::float3(0.0, 0.0, 0.0), metal::float3(0.0, 0.0, 0.0));
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return;
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}
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