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3242d3e8c9
This uses FXC compilation failure mitigation for _any_ vector index assignment that has a non-constant index. FXC can still fall over if the loop calls a function that performs the dynamic index. Use some vector swizzle logic to avoid branches in the helper. Fixed: tint:980 Change-Id: I2a759d88a7d884bc61b4631cf57feb4acc8178de Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/57882 Auto-Submit: Ben Clayton <bclayton@google.com> Commit-Queue: Antonio Maiorano <amaiorano@google.com> Kokoro: Kokoro <noreply+kokoro@google.com> Reviewed-by: Antonio Maiorano <amaiorano@google.com>
20 lines
390 B
Plaintext
20 lines
390 B
Plaintext
#include <metal_stdlib>
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using namespace metal;
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struct S {
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/* 0x0000 */ packed_float3 v;
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/* 0x000c */ uint i;
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};
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float3 Bad(uint index, float3 rd) {
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float3 normal = float3(0.0f);
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normal[index] = -(sign(rd[index]));
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return normalize(normal);
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}
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kernel void tint_symbol(uint idx [[thread_index_in_threadgroup]], device S& io [[buffer(0)]]) {
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io.v = Bad(io.i, io.v);
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return;
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}
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