fa5b206d97
On MSL, the compiler refuses to allow access chains into a normal vector type. What happens in practice instead is a read-modify-write where a vector type is loaded, modified and written back. The workaround is to convert a vector into a pointer-to-scalar before the access chain continues to add the scalar index.
28 lines
378 B
Plaintext
28 lines
378 B
Plaintext
#include <metal_stdlib>
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#include <simd/simd.h>
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using namespace metal;
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struct Foo
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{
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packed_float3 a;
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float b;
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};
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struct SSBO
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{
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float2 a;
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float b;
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char _m2_pad[4];
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Foo foo;
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};
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constant uint3 gl_WorkGroupSize [[maybe_unused]] = uint3(1u);
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kernel void main0(device SSBO& _12 [[buffer(0)]])
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{
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((device float*)&_12.a)[0u] = 10.0;
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_12.b = 20.0;
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}
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