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shader: preserve RDNA2 DLC coherence for flat address loads

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Claxten authored and nmzik committed 2026-10-06 14:53:17 +04:00
1 parent cdb64bfd4f
commit 9caec9f2c8
5 files changed
+75 -14
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src/graphics/shader/recompiler/frontend/translate/Memory.cpp
+3 -2
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@@ -129,8 +129,9 @@ IR::MemoryInfo MemoryInfoFromDecoded(const Decoder::Instruction& decoded) {
// Vector loads use GLC/DLC to bypass L0/GL1; atomics use GLC only to return data.
const bool buffer_atomic = decoded.opcode >= Decoder::Opcode::BUFFER_ATOMIC_SWAP &&
decoded.opcode <= Decoder::Opcode::BUFFER_ATOMIC_FMAX;
memory.coherent = memory.kind == ResourceKind::Buffer && !buffer_atomic &&
(decoded.glc || decoded.dlc);
memory.coherent = (memory.kind == ResourceKind::Buffer || memory.kind == ResourceKind::Flat ||
memory.kind == ResourceKind::Global) &&
!buffer_atomic && (decoded.glc || decoded.dlc);
memory.resource = ResourceIndexFromOperand(decoded.src1);
memory.sampler = ResourceIndexFromOperand(decoded.src2);
if (memory.kind == ResourceKind::ScalarBuffer) {