shader: implement RDNA2 scalar quad-mask reduction

This commit is contained in:
nmzik committed 2026-08-21 03:32:48 +02:00
1 parent bac6bf65af
commit fbdc1e8714
7 files changed
+56 -2

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@@ -28,6 +28,7 @@ constexpr LowerMap LOWER_OPS[] = {
{Decoder::Opcode::S_FF1_I32_B64, Opcode::FindLsbU64},
{Decoder::Opcode::S_FLBIT_I32_B64, Opcode::FindMsbFromHighU64},
{Decoder::Opcode::S_BITREPLICATE_B64_B32, Opcode::BitReplicateB64B32},
{Decoder::Opcode::S_QUADMASK_B64, Opcode::QuadmaskB64},
{Decoder::Opcode::S_NOT_B32, Opcode::BitwiseNotU32},
{Decoder::Opcode::S_NOT_B64, Opcode::BitwiseNotU64},
{Decoder::Opcode::S_ADD_U32, Opcode::IAddU32},
@@ -511,7 +512,8 @@ bool ScalarResultWritesSccNonZero(Decoder::Opcode opcode) {
case Decoder::Opcode::S_LSHL_B64:
case Decoder::Opcode::S_LSHR_B64:
case Decoder::Opcode::S_BFE_U64:
case Decoder::Opcode::S_WQM_B64: return true;
case Decoder::Opcode::S_WQM_B64:
case Decoder::Opcode::S_QUADMASK_B64: return true;
default: return false;
}
}
@@ -530,7 +532,8 @@ bool ScalarResultIs64Bit(Decoder::Opcode opcode) {
case Decoder::Opcode::S_LSHL_B64:
case Decoder::Opcode::S_LSHR_B64:
case Decoder::Opcode::S_BFE_U64:
case Decoder::Opcode::S_WQM_B64: return true;
case Decoder::Opcode::S_WQM_B64:
case Decoder::Opcode::S_QUADMASK_B64: return true;
default: return false;
}
}