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shader: fix crash from packed ancillary used as DPP old operand (#1769)

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shader: emit plain EXEC selects for DPP writes that reach every active lane (Street Fighter 6)
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Felipe authored and GitHub committed 2026-10-23 09:51:32 +02:00
1 parent 719c44310a
commit 9dcff95e80
3 files changed
+19 -2
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src/graphics/shader/recompiler/backend/spirv/spirvEmitterFlow.cpp
+1 -1
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@@ -132,7 +132,7 @@ uint32_t EmitDppWriteCondition(ValueEmitContext& ctx, const IR::DppMoveFlags& fl
enable(flags.bank_mask, 2u);
enable(flags.row_mask, 4u);
// Only row shifts (0x101-0x10f, 0x111-0x11f) can vacate a lane; other controls always read one.
const bool row_shift = !flags.dpp8 && flags.control > 0x100u && flags.control < 0x120u &&
const bool row_shift = flags.control > 0x100u && flags.control < 0x120u &&
flags.control != 0x110u;
if (!flags.bound_control && row_shift) {
writable = Binary(state, spv::OpLogicalAnd, TypeBool(state), writable,