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shader: allow SDWA add-with-carry

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This commit is contained in:
nmzik
2026-08-29 15:26:13 +04:00
parent 6c3b562822
commit ef639610e7
2 changed files with 20 additions and 17 deletions
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tests/ShaderRecompilerComputeTests.cpp
+19 -16
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@@ -13957,37 +13957,35 @@ TestCase VectorAddcUsesPerLaneCarryIn() {
TestCase VectorAddcWritesPerLaneCarryOut() {
using O = ShaderOpcode;
std::vector<u32> code = {
EncodeVop1(0x01, 1, 0),
EncodeVop2(0x1a, 1, InlineU32(2), 1),
EncodeVop2(0x25, 1, Vgpr(0), 1),
EncodeVopc(0xc0, Vgpr(0), 0),
};
AppendVMovLiteral(&code, 2, 0xffffffffu);
code.push_back(EncodeVop1(0x01, 3, InlineU32(1)));
code.push_back(EncodeVop2(0x28, 5, Vgpr(2), 3));
std::vector<u32> code = {EncodeVop1(0x01, 1, Vgpr(0)),
EncodeVop2(0x1a, 4, InlineU32(2), 1),
EncodeVopc(0xc7, Vgpr(0), 0)};
AppendBufferLoadDword(&code, 26, 4);
code.push_back(0x500434f9u);
code.push_back(0x0c860680u);
code.push_back(EncodeVop1(0x01, 6, 106));
code.push_back(EncodeVop2(0x1a, 4, InlineU32(2), 1));
AppendBufferStoreDword(&code, 6, 4);
AppendEnd(&code);
TestCase test;
test.name = "VectorAddcWritesPerLaneCarryOut";
test.code = code;
test.initial = {0x0000ffffu, 0u, 0x0000ffffu, 0u};
// VCC is represented as the current invocation's carry bit, not a shared
// four-lane ballot word.
test.expected = std::vector<u32>(8, 1u);
test.opcodes = {O::V_MOV_B32, O::V_LSHLREV_B32, O::V_ADD_NC_U32,
O::V_CMP_F_U32, O::V_ADDC_U32, O::BUFFER_STORE_DWORD,
test.expected = {1u, 0u, 1u, 0u};
test.opcodes = {O::V_MOV_B32, O::V_LSHLREV_B32, O::V_CMP_T_U32,
O::BUFFER_LOAD_DWORD, O::V_ADDC_U32, O::BUFFER_STORE_DWORD,
O::S_ENDPGM};
test.decoded_counts = {
{"V_ADDC_U32 v2, vcc_lo, 0, v26.sdwa(sel=4,sext=1), vcc_lo", 1}};
test.ir_counts = {{" = BitFieldSExtract ", 1}, {" = IAddCarry32 ", 2}};
test.required_spirv = {"OpBitFieldSExtract"};
test.compute_info.threads_num[0] = 4;
test.compute_info.threads_num[1] = 1;
test.compute_info.threads_num[2] = 1;
test.compute_info.group_id[0] = true;
test.compute_info.thread_ids_num = 1;
test.compute_info.workgroup_register = 0;
test.has_compute_info = true;
test.dispatch_x = 2;
return test;
}
@@ -24518,6 +24516,11 @@ int main(int argc, char **argv) {
RunCase(&vulkan, Vop2SdwaAshrrevCapturedWord0SignExtends());
return 0;
}
if (argc == 2 && std::strcmp(argv[1], "--sdwa-addc-only") == 0) {
VulkanHarness vulkan;
RunCase(&vulkan, VectorAddcWritesPerLaneCarryOut());
return 0;
}
if (argc == 2 && std::strcmp(argv[1], "--cvt-pk-i16-only") == 0) {
VulkanHarness vulkan;
RunCase(&vulkan, Vop3CvtPkI16I32Captured());