shader: preserve raw VCC bits in S_MOV_B64 (#418)

* shader: preserve raw VCC bits in S_MOV_B64

* fix(shader): centralize scalar U64 mask provenance

---------

Co-authored-by: nmzik <Nmzik@mail.ru>
This commit is contained in:
nomolao2-cell
2026-08-30 17:04:16 -06:00
committed by GitHub
parent dc5b7c19a6
commit 6758d67942
13 changed files with 444 additions and 185 deletions
+184 -3
View File
@@ -12740,6 +12740,160 @@ TestCase ScalarNotB64UpdatesScc() {
O::S_ENDPGM}};
}
TestCase ScalarMovB64PreservesRawSpecialData() {
using O = ShaderOpcode;
std::vector<u32> code;
AppendSMovLiteral(&code, 0, 0x09500000u);
AppendSMovLiteral(&code, 1, 0x81234567u);
code.push_back(EncodeSop1(0x04, 106, 0)); // s_mov_b64 vcc, s[0:1]
code.push_back(EncodeSop1(0x04, 2, 106)); // s_mov_b64 s[2:3], vcc
code.push_back(EncodeSop1(0x08, 4, 2)); // s_not_b64 s[4:5], s[2:3]
code.push_back(EncodeSop2(0x0a, 6, InlineU32(1), InlineU32(0)));
AppendStoreSgprPair(&code, 2, 0);
AppendStoreSgprPair(&code, 4, 2);
AppendStoreSgpr(&code, 6, 4);
AppendSMovLiteral(&code, 8, 0x09500001u);
AppendSMovLiteral(&code, 9, 0x81234567u);
code.push_back(EncodeSop1(0x04, 126, 8)); // s_mov_b64 exec, s[8:9]
code.push_back(EncodeSop1(0x04, 10, 126)); // s_mov_b64 s[10:11], exec
code.push_back(EncodeSop1(0x08, 12, 10)); // s_not_b64 s[12:13], s[10:11]
code.push_back(EncodeSop2(0x0a, 14, InlineU32(1), InlineU32(0)));
AppendStoreSgprPair(&code, 10, 5);
AppendStoreSgprPair(&code, 12, 7);
AppendStoreSgpr(&code, 14, 9);
AppendEnd(&code);
return {"ScalarMovB64PreservesRawSpecialData",
code,
{},
{0x09500000u, 0x81234567u, 0xf6afffffu, 0x7edcba98u, 1u,
0x09500001u, 0x81234567u, 0xf6affffeu, 0x7edcba98u, 1u},
{O::S_MOV_B32, O::S_MOV_B64, O::S_NOT_B64, O::S_CSELECT_B32,
O::V_MOV_B32, O::BUFFER_STORE_DWORD, O::S_ENDPGM}};
}
TestCase Scalar64RawSpecialOps() {
using O = ShaderOpcode;
std::vector<u32> code;
const auto capture_scc = [&](u32 dst) {
code.push_back(EncodeSop2(0x0a, dst, InlineU32(1), InlineU32(0)));
};
AppendSMovLiteral(&code, 0, 0x09500001u);
AppendSMovLiteral(&code, 1, 0x81234567u);
AppendSMovLiteral(&code, 2, 0xff00ff01u);
AppendSMovLiteral(&code, 3, 0x0f0f0f0fu);
code.push_back(EncodeSop1(0x04, 126, 0));
code.push_back(EncodeSop2(0x0f, 106, 126, 2));
code.push_back(EncodeSop1(0x04, 4, 106));
capture_scc(6);
code.push_back(EncodeSop1(0x08, 106, 106));
code.push_back(EncodeSop1(0x04, 8, 106));
capture_scc(10);
AppendSMovLiteral(&code, 12, 0x80000011u);
AppendSMovLiteral(&code, 13, 0x80000001u);
code.push_back(EncodeSop1(0x04, 106, 12));
code.push_back(EncodeSop1(0x0a, 106, 106));
code.push_back(EncodeSop1(0x04, 14, 106));
capture_scc(16);
code.push_back(EncodeSop1(0x0a, 26, 193u));
capture_scc(28);
code.push_back(EncodeSMovB32(18, InlineU32(1)));
code.push_back(EncodeSMovB32(19, InlineU32(0)));
code.push_back(EncodeSopc(0x06, InlineU32(1), InlineU32(1)));
code.push_back(EncodeSop2(0x0b, 126, 0, 18));
code.push_back(EncodeSop1(0x04, 20, 126));
code.push_back(EncodeSop1(0x08, 106, 126));
code.push_back(EncodeSop1(0x04, 22, 106));
capture_scc(24);
code.push_back(EncodeSop1(0x04, 126, 18));
AppendStoreSgprPair(&code, 4, 0);
AppendStoreSgpr(&code, 6, 2);
AppendStoreSgprPair(&code, 8, 3);
AppendStoreSgpr(&code, 10, 5);
AppendStoreSgprPair(&code, 14, 6);
AppendStoreSgpr(&code, 16, 8);
AppendStoreSgprPair(&code, 26, 9);
AppendStoreSgpr(&code, 28, 11);
AppendStoreSgprPair(&code, 20, 12);
AppendStoreSgprPair(&code, 22, 14);
AppendStoreSgpr(&code, 24, 16);
AppendEnd(&code);
return {"Scalar64RawSpecialOps",
code,
{},
{0x09000001u, 0x01030507u, 1, 0xf6fffffeu, 0xfefcfaf8u, 1,
0xf00000ffu, 0xf000000fu, 1, 0xffffffffu, 0xffffffffu, 1,
0x09500001u, 0x81234567u, 0xf6affffeu, 0x7edcba98u, 1},
{O::S_MOV_B32, O::S_MOV_B64, O::S_AND_B64, O::S_NOT_B64,
O::S_CSELECT_B32, O::S_WQM_B64, O::S_CMP_EQ_U32, O::S_CSELECT_B64,
O::V_MOV_B32, O::BUFFER_STORE_DWORD, O::S_ENDPGM}};
}
TestCase ScalarMovB32SpecialAliases() {
using O = ShaderOpcode;
std::vector<u32> code;
const auto capture_scc = [&](u32 dst) {
code.push_back(EncodeSop2(0x0a, dst, InlineU32(1), InlineU32(0)));
};
AppendSMovLiteral(&code, 0, 0x09500001u);
AppendSMovLiteral(&code, 1, 0x81234567u);
AppendSMovLiteral(&code, 2, 0xaaaaaaaau);
AppendSMovLiteral(&code, 3, 0xbbbbbbbbu);
code.push_back(EncodeSMovB32(4, InlineU32(1)));
code.push_back(EncodeSMovB32(5, InlineU32(0)));
code.push_back(EncodeSop1(0x04, 126, 0));
code.push_back(EncodeSop1(0x04, 106, 2));
code.push_back(EncodeSMovB32(107, 126));
code.push_back(EncodeSop1(0x04, 6, 106));
code.push_back(EncodeSop1(0x08, 8, 106));
capture_scc(10);
AppendSMovLiteral(&code, 12, 0x13579bdfu);
AppendSMovLiteral(&code, 13, 0x2468ace0u);
code.push_back(EncodeSop1(0x04, 106, 12));
code.push_back(EncodeSMovB32(126, 106));
code.push_back(EncodeSop1(0x04, 14, 126));
code.push_back(EncodeSop1(0x04, 126, 4));
code.push_back(EncodeVopc(0xc2, InlineU32(0), 0));
code.push_back(EncodeSMovB32(106, 106));
code.push_back(EncodeSop1(0x08, 16, 106));
capture_scc(18);
code.push_back(EncodeSop1(0x04, 20, 106));
code.push_back(EncodeSMovB32(20, 20));
code.push_back(EncodeSop1(0x08, 22, 20));
capture_scc(24);
AppendStoreSgprPair(&code, 6, 0);
AppendStoreSgprPair(&code, 8, 2);
AppendStoreSgpr(&code, 10, 4);
AppendStoreSgprPair(&code, 14, 5);
AppendStoreSgpr(&code, 18, 7);
AppendStoreSgpr(&code, 24, 8);
AppendEnd(&code);
return {"ScalarMovB32SpecialAliases",
code,
{},
{0xaaaaaaaau, 0x09500001u, 0x55555555u, 0xf6affffeu, 1, 0x13579bdfu,
0x81234567u, 0, 0},
{O::S_MOV_B32, O::S_MOV_B64, O::S_NOT_B64, O::S_CSELECT_B32,
O::V_CMP_EQ_U32, O::V_MOV_B32, O::BUFFER_STORE_DWORD, O::S_ENDPGM}};
}
TestCase ScalarQuadmaskB64() {
using O = ShaderOpcode;
@@ -12838,8 +12992,7 @@ TestCase ScalarSaveExecOps() {
return {"ScalarSaveExecOps",
code,
{},
// EXEC and saved EXEC values are invocation-local Booleans.
{1, 0, 1, 0, 1, 0, 1, 1, 0, 1, 0, 0, 0},
{1, 0, 1, 0, 0xffffffffu, 0xffffffffu, 1, 1, 0, 1, 0, 0, 0},
{O::S_MOV_B32, O::S_AND_SAVEEXEC_B64, O::S_ORN2_SAVEEXEC_B64,
O::S_ANDN1_SAVEEXEC_B64, O::S_AND_SAVEEXEC_B32,
O::S_ANDN1_SAVEEXEC_B32, O::S_MOV_B64, O::V_MOV_B32,
@@ -12866,7 +13019,7 @@ TestCase ScalarOrn2SaveexecUsesSourceOrNotExec() {
return {"ScalarOrn2SaveexecUsesSourceOrNotExec",
code,
{},
{1, 0, 1, 0, 1},
{0x0000000cu, 0x80000000u, 0xfffffff3u, 0x7fffffffu, 1},
{O::S_MOV_B32, O::S_ORN2_SAVEEXEC_B64, O::S_MOV_B64, O::V_MOV_B32,
O::BUFFER_STORE_DWORD, O::S_ENDPGM}};
}
@@ -16496,6 +16649,30 @@ TestCase ScalarMemoryLoadVariants() {
O::BUFFER_STORE_DWORD, O::S_ENDPGM}};
}
TestCase ScalarLoadUsesRawExecAddress() {
using O = ShaderOpcode;
std::vector<u32> code;
code.push_back(EncodeSMovB32(0, InlineU32(0)));
code.push_back(EncodeSMovB32(1, InlineU32(0)));
code.push_back(EncodeSMovB32(2, InlineU32(4)));
code.push_back(EncodeSMovB32(3, InlineU32(0)));
code.push_back(EncodeSop1(0x04, 126, 2));
code.push_back(EncodeSmem0(0x00, 20, 63));
code.push_back(EncodeSmem1(0));
code.push_back(EncodeSMovB32(2, InlineU32(1)));
code.push_back(EncodeSop1(0x04, 126, 2));
AppendStoreSgpr(&code, 20, 0);
AppendEnd(&code);
return {"ScalarLoadUsesRawExecAddress",
code,
{0x11111111u, 0x22222222u},
{0x22222222u, 0x22222222u},
{O::S_MOV_B32, O::S_MOV_B64, O::S_LOAD_DWORD, O::V_MOV_B32,
O::BUFFER_STORE_DWORD, O::S_ENDPGM}};
}
TestCase ScalarLoadSignedImmediateOffsetAddsSoffset() {
using O = ShaderOpcode;
@@ -20948,6 +21125,9 @@ std::vector<TestCase> MakeCases() {
AddCase(ScalarCompareOps);
AddCase(ScalarShiftAddAndMaskOps);
AddCase(ScalarNotB64UpdatesScc);
AddCase(ScalarMovB64PreservesRawSpecialData);
AddCase(Scalar64RawSpecialOps);
AddCase(ScalarMovB32SpecialAliases);
AddCase(ScalarQuadmaskB64);
AddCase(ScalarFlbitI32B64Gpu);
AddCase(ScalarSaveExecOps);
@@ -21061,6 +21241,7 @@ std::vector<TestCase> MakeCases() {
AddCase(BranchVccnzUsesInvocationMask);
AddCase(BranchVccnzUsesCarryProducedInvocationMask);
AddCase(ScalarMemoryLoadVariants);
AddCase(ScalarLoadUsesRawExecAddress);
AddCase(ScalarLoadSignedImmediateOffsetAddsSoffset);
AddCase(ScalarLoadAlignsComponentsAndMasksAddress);
AddCase(BufferLoadStore);
+17 -11
View File
@@ -9470,10 +9470,12 @@ void TestTypedEntryStateIsMinimal() {
error.c_str());
uint32_t set_exec = 0;
uint32_t set_exec_mask_tag = 0;
uint32_t set_exec_lo = 0;
uint32_t set_exec_hi = 0;
uint32_t ballots = 0;
IR::Value exec;
IR::Value exec_mask_tag;
IR::Value exec_lo;
IR::Value exec_hi;
for (const auto *block : values.blocks) {
@@ -9486,6 +9488,10 @@ void TestTypedEntryStateIsMinimal() {
set_exec++;
exec = inst.Arg(0).Resolve();
break;
case IR::ValueOpcode::SetExecMaskTag:
set_exec_mask_tag++;
exec_mask_tag = inst.Arg(0).Resolve();
break;
case IR::ValueOpcode::SetExecLo:
set_exec_lo++;
exec_lo = inst.Arg(0).Resolve();
@@ -9500,6 +9506,7 @@ void TestTypedEntryStateIsMinimal() {
case IR::ValueOpcode::SetVectorRegister:
case IR::ValueOpcode::SetScc:
case IR::ValueOpcode::SetVcc:
case IR::ValueOpcode::SetVccMaskValidTag:
case IR::ValueOpcode::SetVccLo:
case IR::ValueOpcode::SetVccHi:
case IR::ValueOpcode::SetM0:
@@ -9510,8 +9517,9 @@ void TestTypedEntryStateIsMinimal() {
}
}
}
Check(set_exec == 1u && set_exec_lo == 1u && set_exec_hi == 1u &&
ballots == 0u && exec.IsImmediate() && exec.U1() &&
Check(set_exec == 1u && set_exec_mask_tag == 1u && set_exec_lo == 1u &&
set_exec_hi == 1u && ballots == 0u && exec.IsImmediate() &&
exec.U1() && exec_mask_tag.IsImmediate() && exec_mask_tag.U1() &&
exec_lo.IsImmediate() && exec_lo.U32() == 1u &&
exec_hi.IsImmediate() && exec_hi.U32() == 0u,
"typed entry is not the local {1,0} invocation mask");
@@ -10372,11 +10380,8 @@ void TestNewShaderRecompilerPerInvocationMasksWithoutMirrors() {
error.c_str());
CheckSpirvBinaryValidates(result.spirv);
const auto wqm_source = DisassembleSpirvBinary(result.spirv);
Check(Common::ContainsStr(wqm_source, "OpCapability GroupNonUniformBallot") &&
Common::ContainsStr(wqm_source, "OpGroupNonUniformBallot"),
"per-invocation scalar WQM omitted its subgroup ballot capability");
Check(SpirvInstructionOpcodeCount(result.spirv, 132u) == 2u,
"wave64 WQM did not compact exactly two ballot words");
Check(!Common::ContainsStr(wqm_source, "OpGroupNonUniformBallot"),
"raw scalar WQM reconstructed its source from invocation provenance");
auto wave32_options = options;
wave32_options.wave_size = 32u;
@@ -10384,8 +10389,9 @@ void TestNewShaderRecompilerPerInvocationMasksWithoutMirrors() {
&error),
error.c_str());
CheckSpirvBinaryValidates(result.spirv);
Check(SpirvInstructionOpcodeCount(result.spirv, 132u) == 1u,
"wave32 WQM retained the unused high ballot-word expansion");
Check(!Common::ContainsStr(DisassembleSpirvBinary(result.spirv),
"OpGroupNonUniformBallot"),
"wave32 raw scalar WQM reconstructed invocation provenance");
const uint32_t cross_lane_shader[] = {
EncodeSop2(0x25, 126, 132, 128), // s_bfm_b64 exec, 4, 0
@@ -12488,8 +12494,8 @@ void TestNewShaderRecompilerSpirvSizeBaselines() {
.conditional_branches = 1,
.ballots = 1},
ShaderType::Vertex);
Check(Common::ContainsStr(wqm_result.ir_dump, "WqmMask"),
"WQM size fixture no longer reaches per-invocation WqmMask IR");
Check(Common::ContainsStr(wqm_result.ir_dump, "WqmU64"),
"WQM size fixture no longer reaches raw WqmU64 IR");
const uint32_t dispatcher[] = {
EncodeSopp(0x05, 2), // entry -> B, fallthrough A