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shader: implement RDNA2 scalar quad-mask reduction

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This commit is contained in:
nmzik
2026-08-20 07:39:56 +02:00
parent bac6bf65af
commit fbdc1e8714
7 changed files with 56 additions and 2 deletions
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tests/ShaderRecompilerComputeTests.cpp
+32
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@@ -11711,6 +11711,37 @@ TestCase ScalarNotB64UpdatesScc() {
O::V_MOV_B32, O::BUFFER_STORE_DWORD, O::S_ENDPGM}};
}
TestCase ScalarQuadmaskB64() {
using O = ShaderOpcode;
std::vector<u32> code;
auto capture_scc = [&](u32 dst_sgpr) {
code.push_back(EncodeSop2(0x0a, dst_sgpr, InlineU32(1), InlineU32(0)));
};
AppendSMovLiteral(&code, 106, 0x80000011u);
AppendSMovLiteral(&code, 107, 0x000000f0u);
code.push_back(EncodeSop1(0x2d, 106, 106));
capture_scc(0);
AppendStoreSgprPair(&code, 106, 0);
AppendStoreSgpr(&code, 0, 2);
code.push_back(EncodeSMovB32(106, InlineU32(0)));
code.push_back(EncodeSMovB32(107, InlineU32(0)));
code.push_back(EncodeSop1(0x2d, 106, 106));
capture_scc(0);
AppendStoreSgprPair(&code, 106, 3);
AppendStoreSgpr(&code, 0, 5);
AppendEnd(&code);
return {"ScalarQuadmaskB64",
code,
{},
{0x00000283u, 0, 1, 0, 0, 0},
{O::S_MOV_B32, O::S_QUADMASK_B64, O::S_CSELECT_B32, O::V_MOV_B32,
O::BUFFER_STORE_DWORD, O::S_ENDPGM}};
}
TestCase ScalarFlbitI32B64Gpu() {
using O = ShaderOpcode;
@@ -18564,6 +18595,7 @@ std::vector<TestCase> MakeCases() {
AddCase(ScalarCompareOps);
AddCase(ScalarShiftAddAndMaskOps);
AddCase(ScalarNotB64UpdatesScc);
AddCase(ScalarQuadmaskB64);
AddCase(ScalarFlbitI32B64Gpu);
AddCase(ScalarSaveExecOps);
AddCase(ScalarOrn2SaveexecUsesSourceOrNotExec);