[SPIRV] Added support for extension SPV_ALTERA_arbitrary_precision_fixed_point and name change of SPV_INTEL_arbitrary_precision_integers to SPV_ALTERA_arbitrary_precision_integers (llvm#136085)

--Added support for extension SPV_ALTERA_arbitrary_precision_fixed_point
--Added test files for extension
SPV_ALTERA_arbitrary_precision_fixed_point

Author: aadeshps-mcw

llvm/docs/SPIRVUsage.rst

@@ -30,8 +30,8 @@ Static Compiler Commands
    Description: This command compiles an LLVM IL file (`input.ll`) to a SPIR-V binary (`output.spvt`) for a 32-bit architecture.
 
 2. **Compilation with Extensions and Optimization**
-   Command: `llc -O1 -mtriple=spirv64-unknown-unknown --spirv-ext=+SPV_INTEL_arbitrary_precision_integers input.ll -o output.spvt`
-   Description: Compiles an LLVM IL file to SPIR-V with (`-O1`) optimizations, targeting a 64-bit architecture. It enables the SPV_INTEL_arbitrary_precision_integers extension.
+   Command: `llc -O1 -mtriple=spirv64-unknown-unknown --spirv-ext=+SPV_ALTERA_arbitrary_precision_integers input.ll -o output.spvt`
+   Description: Compiles an LLVM IL file to SPIR-V with (`-O1`) optimizations, targeting a 64-bit architecture. It enables the SPV_ALTERA_arbitrary_precision_integers extension.
 
 3. **Compilation with experimental NonSemantic.Shader.DebugInfo.100 support**
    Command: `llc --spv-emit-nonsemantic-debug-info --spirv-ext=+SPV_KHR_non_semantic_info input.ll -o output.spvt`
@@ -136,7 +136,7 @@ extensions to enable or disable, each prefixed with ``+`` or ``-``, respectively
 
 To enable multiple extensions, list them separated by comma. For example, to enable support for atomic operations on floating-point numbers and arbitrary precision integers, use:
 
-``-spirv-ext=+SPV_EXT_shader_atomic_float_add,+SPV_INTEL_arbitrary_precision_integers``
+``-spirv-ext=+SPV_EXT_shader_atomic_float_add,+SPV_ALTERA_arbitrary_precision_integers``
 
 To enable all extensions, use the following option:
 ``-spirv-ext=all``
@@ -145,7 +145,7 @@ To enable all KHR extensions, use the following option:
 ``-spirv-ext=khr``
 
 To enable all extensions except specified, specify ``all`` followed by a list of disallowed extensions. For example:
-``-spirv-ext=all,-SPV_INTEL_arbitrary_precision_integers``
+``-spirv-ext=all,-SPV_ALTERA_arbitrary_precision_integers``
 
 Below is a list of supported SPIR-V extensions, sorted alphabetically by their extension names:
 
@@ -171,7 +171,7 @@ Below is a list of supported SPIR-V extensions, sorted alphabetically by their e
      - Extends the SPV_EXT_shader_atomic_float_add and SPV_EXT_shader_atomic_float_min_max to support addition, minimum and maximum on 16-bit `bfloat16` floating-point numbers in memory.
    * - ``SPV_INTEL_2d_block_io``
      - Adds additional subgroup block prefetch, load, load transposed, load transformed and store instructions to read two-dimensional blocks of data from a two-dimensional region of memory, or to write two-dimensional blocks of data to a two dimensional region of memory.
-   * - ``SPV_INTEL_arbitrary_precision_integers``
+   * - ``SPV_ALTERA_arbitrary_precision_integers``
      - Allows generating arbitrary width integer types.
    * - ``SPV_INTEL_bindless_images``
      - Adds instructions to convert convert unsigned integer handles to images, samplers and sampled images.
@@ -245,6 +245,9 @@ Below is a list of supported SPIR-V extensions, sorted alphabetically by their e
      - Adds execution mode and capability to enable maximal reconvergence.
    * - ``SPV_ALTERA_blocking_pipes``
      - Adds new pipe read and write functions that have blocking semantics instead of the non-blocking semantics of the existing pipe read/write functions.
+   * - ``SPV_ALTERA_arbitrary_precision_fixed_point``
+     - Add instructions for fixed point arithmetic. The extension works without SPV_ALTERA_arbitrary_precision_integers, but together they allow greater flexibility in representing arbitrary precision data types.
+
 
 SPIR-V representation in LLVM IR
 ================================

llvm/lib/Target/SPIRV/SPIRVBuiltins.cpp

@@ -2399,6 +2399,77 @@ static bool generateBlockingPipesInst(const SPIRV::IncomingCall *Call,
   return buildOpFromWrapper(MIRBuilder, Opcode, Call, Register(0));
 }
 
+static bool buildAPFixedPointInst(const SPIRV::IncomingCall *Call,
+                                  unsigned Opcode, MachineIRBuilder &MIRBuilder,
+                                  SPIRVGlobalRegistry *GR) {
+  MachineRegisterInfo *MRI = MIRBuilder.getMRI();
+  SmallVector<uint32_t, 1> ImmArgs;
+  Register InputReg = Call->Arguments[0];
+  const Type *RetTy = GR->getTypeForSPIRVType(Call->ReturnType);
+  bool IsSRet = RetTy->isVoidTy();
+
+  if (IsSRet) {
+    const LLT ValTy = MRI->getType(InputReg);
+    Register ActualRetValReg = MRI->createGenericVirtualRegister(ValTy);
+    SPIRVType *InstructionType =
+        GR->getPointeeType(GR->getSPIRVTypeForVReg(InputReg));
+    InputReg = Call->Arguments[1];
+    auto InputType = GR->getTypeForSPIRVType(GR->getSPIRVTypeForVReg(InputReg));
+    Register PtrInputReg;
+    if (InputType->getTypeID() == llvm::Type::TypeID::TypedPointerTyID) {
+      LLT InputLLT = MRI->getType(InputReg);
+      PtrInputReg = MRI->createGenericVirtualRegister(InputLLT);
+      SPIRVType *PtrType =
+          GR->getPointeeType(GR->getSPIRVTypeForVReg(InputReg));
+      MachineMemOperand *MMO1 = MIRBuilder.getMF().getMachineMemOperand(
+          MachinePointerInfo(), MachineMemOperand::MOLoad,
+          InputLLT.getSizeInBytes(), Align(4));
+      MIRBuilder.buildLoad(PtrInputReg, InputReg, *MMO1);
+      MRI->setRegClass(PtrInputReg, &SPIRV::iIDRegClass);
+      GR->assignSPIRVTypeToVReg(PtrType, PtrInputReg, MIRBuilder.getMF());
+    }
+
+    for (unsigned index = 2; index < 7; index++) {
+      ImmArgs.push_back(getConstFromIntrinsic(Call->Arguments[index], MRI));
+    }
+
+    // Emit the instruction
+    auto MIB = MIRBuilder.buildInstr(Opcode)
+                   .addDef(ActualRetValReg)
+                   .addUse(GR->getSPIRVTypeID(InstructionType));
+    if (PtrInputReg)
+      MIB.addUse(PtrInputReg);
+    else
+      MIB.addUse(InputReg);
+
+    for (uint32_t Imm : ImmArgs)
+      MIB.addImm(Imm);
+    unsigned Size = ValTy.getSizeInBytes();
+    // Store result to the pointer passed in Arg[0]
+    MachineMemOperand *MMO = MIRBuilder.getMF().getMachineMemOperand(
+        MachinePointerInfo(), MachineMemOperand::MOStore, Size, Align(4));
+    MRI->setRegClass(ActualRetValReg, &SPIRV::pIDRegClass);
+    MIRBuilder.buildStore(ActualRetValReg, Call->Arguments[0], *MMO);
+    return true;
+  } else {
+    for (unsigned index = 1; index < 6; index++)
+      ImmArgs.push_back(getConstFromIntrinsic(Call->Arguments[index], MRI));
+
+    return buildOpFromWrapper(MIRBuilder, Opcode, Call,
+                              GR->getSPIRVTypeID(Call->ReturnType), ImmArgs);
+  }
+}
+
+static bool generateAPFixedPointInst(const SPIRV::IncomingCall *Call,
+                                     MachineIRBuilder &MIRBuilder,
+                                     SPIRVGlobalRegistry *GR) {
+  const SPIRV::DemangledBuiltin *Builtin = Call->Builtin;
+  unsigned Opcode =
+      SPIRV::lookupNativeBuiltin(Builtin->Name, Builtin->Set)->Opcode;
+
+  return buildAPFixedPointInst(Call, Opcode, MIRBuilder, GR);
+}
+
 static bool
 generateTernaryBitwiseFunctionINTELInst(const SPIRV::IncomingCall *Call,
                                         MachineIRBuilder &MIRBuilder,
@@ -3061,6 +3132,8 @@ std::optional<bool> lowerBuiltin(const StringRef DemangledCall,
     return generatePredicatedLoadStoreInst(Call.get(), MIRBuilder, GR);
   case SPIRV::BlockingPipes:
     return generateBlockingPipesInst(Call.get(), MIRBuilder, GR);
+  case SPIRV::ArbitraryPrecisionFixedPoint:
+    return generateAPFixedPointInst(Call.get(), MIRBuilder, GR);
   }
   return false;
 }

llvm/lib/Target/SPIRV/SPIRVBuiltins.td

@@ -71,6 +71,7 @@ def TernaryBitwiseINTEL : BuiltinGroup;
 def Block2DLoadStore : BuiltinGroup;
 def Pipe : BuiltinGroup;
 def PredicatedLoadStore : BuiltinGroup;
+def ArbitraryPrecisionFixedPoint : BuiltinGroup;
 def BlockingPipes : BuiltinGroup;
 
 //===----------------------------------------------------------------------===//
@@ -1181,6 +1182,19 @@ defm : DemangledNativeBuiltin<"__spirv_WritePipeBlockingINTEL", OpenCL_std, Bloc
 defm : DemangledNativeBuiltin<"__spirv_ReadPipeBlockingINTEL", OpenCL_std, BlockingPipes, 0, 0, OpReadPipeBlockingALTERA>;
 defm : DemangledNativeBuiltin<"__spirv_ReadClockKHR", OpenCL_std, KernelClock, 1, 1, OpReadClockKHR>;
 
+//SPV_ALTERA_arbitrary_precision_fixed_point
+defm : DemangledNativeBuiltin<"__spirv_FixedSqrtINTEL", OpenCL_std, ArbitraryPrecisionFixedPoint, 6 , 8, OpFixedSqrtALTERA>;
+defm : DemangledNativeBuiltin<"__spirv_FixedRecipINTEL", OpenCL_std, ArbitraryPrecisionFixedPoint, 6 , 8, OpFixedRecipALTERA>;
+defm : DemangledNativeBuiltin<"__spirv_FixedRsqrtINTEL", OpenCL_std, ArbitraryPrecisionFixedPoint, 6 , 8, OpFixedRsqrtALTERA>;
+defm : DemangledNativeBuiltin<"__spirv_FixedSinINTEL", OpenCL_std, ArbitraryPrecisionFixedPoint, 6 , 8, OpFixedSinALTERA>;
+defm : DemangledNativeBuiltin<"__spirv_FixedCosINTEL", OpenCL_std, ArbitraryPrecisionFixedPoint, 6 , 8, OpFixedCosALTERA>;
+defm : DemangledNativeBuiltin<"__spirv_FixedSinCosINTEL", OpenCL_std, ArbitraryPrecisionFixedPoint, 6 , 8, OpFixedSinCosALTERA>;
+defm : DemangledNativeBuiltin<"__spirv_FixedSinPiINTEL", OpenCL_std, ArbitraryPrecisionFixedPoint, 6 , 8, OpFixedSinPiALTERA>;
+defm : DemangledNativeBuiltin<"__spirv_FixedCosPiINTEL", OpenCL_std, ArbitraryPrecisionFixedPoint, 6 , 8, OpFixedCosPiALTERA>;
+defm : DemangledNativeBuiltin<"__spirv_FixedSinCosPiINTEL", OpenCL_std, ArbitraryPrecisionFixedPoint, 6 , 8, OpFixedSinCosPiALTERA>;
+defm : DemangledNativeBuiltin<"__spirv_FixedLogINTEL", OpenCL_std, ArbitraryPrecisionFixedPoint, 6 , 8, OpFixedLogALTERA>;
+defm : DemangledNativeBuiltin<"__spirv_FixedExpINTEL", OpenCL_std, ArbitraryPrecisionFixedPoint, 6 , 8, OpFixedExpALTERA>;
+
 //===----------------------------------------------------------------------===//
 // Class defining an atomic instruction on floating-point numbers.
 //

llvm/lib/Target/SPIRV/SPIRVCommandLine.cpp

@@ -53,8 +53,8 @@ static const std::map<std::string, SPIRV::Extension::Extension, std::less<>>
          SPIRV::Extension::Extension::SPV_GOOGLE_hlsl_functionality1},
         {"SPV_GOOGLE_user_type",
          SPIRV::Extension::Extension::SPV_GOOGLE_user_type},
-        {"SPV_INTEL_arbitrary_precision_integers",
-         SPIRV::Extension::Extension::SPV_INTEL_arbitrary_precision_integers},
+        {"SPV_ALTERA_arbitrary_precision_integers",
+         SPIRV::Extension::Extension::SPV_ALTERA_arbitrary_precision_integers},
         {"SPV_INTEL_cache_controls",
          SPIRV::Extension::Extension::SPV_INTEL_cache_controls},
         {"SPV_INTEL_float_controls2",
@@ -163,7 +163,11 @@ static const std::map<std::string, SPIRV::Extension::Extension, std::less<>>
         {"SPV_INTEL_kernel_attributes",
          SPIRV::Extension::Extension::SPV_INTEL_kernel_attributes},
         {"SPV_ALTERA_blocking_pipes",
-         SPIRV::Extension::Extension::SPV_ALTERA_blocking_pipes}};
+         SPIRV::Extension::Extension::SPV_ALTERA_blocking_pipes},
+        {"SPV_INTEL_int4", SPIRV::Extension::Extension::SPV_INTEL_int4},
+        {"SPV_ALTERA_arbitrary_precision_fixed_point",
+         SPIRV::Extension::Extension::
+             SPV_ALTERA_arbitrary_precision_fixed_point}};
 
 bool SPIRVExtensionsParser::parse(cl::Option &O, StringRef ArgName,
                                   StringRef ArgValue,

llvm/lib/Target/SPIRV/SPIRVGlobalRegistry.cpp

@@ -155,7 +155,7 @@ unsigned SPIRVGlobalRegistry::adjustOpTypeIntWidth(unsigned Width) const {
     report_fatal_error("Unsupported integer width!");
   const SPIRVSubtarget &ST = cast<SPIRVSubtarget>(CurMF->getSubtarget());
   if (ST.canUseExtension(
-          SPIRV::Extension::SPV_INTEL_arbitrary_precision_integers) ||
+          SPIRV::Extension::SPV_ALTERA_arbitrary_precision_integers) ||
       ST.canUseExtension(SPIRV::Extension::SPV_INTEL_int4))
     return Width;
   if (Width <= 8)
@@ -183,11 +183,11 @@ SPIRVType *SPIRVGlobalRegistry::getOpTypeInt(unsigned Width,
           .addImm(SPIRV::Capability::Int4TypeINTEL);
     } else if ((!isPowerOf2_32(Width) || Width < 8) &&
                ST.canUseExtension(
-                   SPIRV::Extension::SPV_INTEL_arbitrary_precision_integers)) {
+                   SPIRV::Extension::SPV_ALTERA_arbitrary_precision_integers)) {
       MIRBuilder.buildInstr(SPIRV::OpExtension)
-          .addImm(SPIRV::Extension::SPV_INTEL_arbitrary_precision_integers);
+          .addImm(SPIRV::Extension::SPV_ALTERA_arbitrary_precision_integers);
       MIRBuilder.buildInstr(SPIRV::OpCapability)
-          .addImm(SPIRV::Capability::ArbitraryPrecisionIntegersINTEL);
+          .addImm(SPIRV::Capability::ArbitraryPrecisionIntegersALTERA);
     }
     return MIRBuilder.buildInstr(SPIRV::OpTypeInt)
         .addDef(createTypeVReg(MIRBuilder))

llvm/lib/Target/SPIRV/SPIRVInstrInfo.td

@@ -999,3 +999,27 @@ def OpReadPipeBlockingALTERA :Op<5946, (outs), (ins ID:$pipe, ID:$pointer, ID:$p
                    "OpReadPipeBlockingALTERA $pipe $pointer $packetSize $packetAlignment">;
 def OpWritePipeBlockingALTERA :Op<5946, (outs), (ins ID:$pipe, ID:$pointer, ID:$packetSize, ID:$packetAlignment),
                    "OpWritePipeBlockingALTERA $pipe $pointer $packetSize $packetAlignment">;
+
+//SPV_ALTERA_arbitrary_precision_fixed_point
+def OpFixedSqrtALTERA: Op<5923, (outs ID:$res), (ins TYPE:$result_type, ID:$input, i32imm:$sign, i32imm:$l, i32imm:$rl, i32imm:$q, i32imm:$o),
+      "$res = OpFixedSqrtALTERA $result_type $input $sign $l $rl $q $o">;
+def OpFixedRecipALTERA: Op<5924, (outs ID:$res), (ins TYPE:$result_type, ID:$input, i32imm:$sign, i32imm:$l, i32imm:$rl, i32imm:$q, i32imm:$o),
+      "$res = OpFixedRecipALTERA $result_type $input $sign $l $rl $q $o">;
+def OpFixedRsqrtALTERA: Op<5925, (outs ID:$res), (ins TYPE:$result_type, ID:$input, i32imm:$sign, i32imm:$l, i32imm:$rl, i32imm:$q, i32imm:$o),
+      "$res = OpFixedRsqrtALTERA $result_type $input $sign $l $rl $q $o">;
+def OpFixedSinALTERA: Op<5926, (outs ID:$res), (ins TYPE:$result_type, ID:$input, i32imm:$sign, i32imm:$l, i32imm:$rl, i32imm:$q, i32imm:$o),
+      "$res = OpFixedSinALTERA $result_type $input $sign $l $rl $q $o">;
+def OpFixedCosALTERA: Op<5927, (outs ID:$res), (ins TYPE:$result_type, ID:$input, i32imm:$sign, i32imm:$l, i32imm:$rl, i32imm:$q, i32imm:$o),
+      "$res = OpFixedCosALTERA $result_type $input $sign $l $rl $q $o">;
+def OpFixedSinCosALTERA: Op<5928, (outs ID:$res), (ins TYPE:$result_type, ID:$input, i32imm:$sign, i32imm:$l, i32imm:$rl, i32imm:$q, i32imm:$o),
+      "$res = OpFixedSinCosALTERA $result_type $input $sign $l $rl $q $o">;
+def OpFixedSinPiALTERA: Op<5929, (outs ID:$res), (ins TYPE:$result_type, ID:$input, i32imm:$sign, i32imm:$l, i32imm:$rl, i32imm:$q, i32imm:$o),
+      "$res = OpFixedSinPiALTERA $result_type $input $sign $l $rl $q $o">;
+def OpFixedCosPiALTERA: Op<5930, (outs ID:$res), (ins TYPE:$result_type, ID:$input, i32imm:$sign, i32imm:$l, i32imm:$rl, i32imm:$q, i32imm:$o),
+      "$res = OpFixedCosPiALTERA $result_type $input $sign $l $rl $q $o">;
+def OpFixedSinCosPiALTERA: Op<5931, (outs ID:$res), (ins TYPE:$result_type, ID:$input, i32imm:$sign, i32imm:$l, i32imm:$rl, i32imm:$q, i32imm:$o),
+      "$res = OpFixedSinCosPiALTERA $result_type $input $sign $l $rl $q $o">;
+def OpFixedLogALTERA: Op<5932, (outs ID:$res), (ins TYPE:$result_type, ID:$input, i32imm:$sign, i32imm:$l, i32imm:$rl, i32imm:$q, i32imm:$o),
+      "$res = OpFixedLogALTERA $result_type $input $sign $l $rl $q $o">;
+def OpFixedExpALTERA: Op<5933, (outs ID:$res), (ins TYPE:$result_type, ID:$input, i32imm:$sign, i32imm:$l, i32imm:$rl, i32imm:$q, i32imm:$o),
+      "$res = OpFixedExpALTERA $result_type $input $sign $l $rl $q $o">;

llvm/lib/Target/SPIRV/SPIRVLegalizerInfo.cpp

@@ -128,7 +128,7 @@ SPIRVLegalizerInfo::SPIRVLegalizerInfo(const SPIRVSubtarget &ST) {
 
   bool IsExtendedInts =
       ST.canUseExtension(
-          SPIRV::Extension::SPV_INTEL_arbitrary_precision_integers) ||
+          SPIRV::Extension::SPV_ALTERA_arbitrary_precision_integers) ||
       ST.canUseExtension(SPIRV::Extension::SPV_KHR_bit_instructions) ||
       ST.canUseExtension(SPIRV::Extension::SPV_INTEL_int4);
   auto extendedScalarsAndVectors =

llvm/lib/Target/SPIRV/SPIRVModuleAnalysis.cpp

@@ -1692,6 +1692,27 @@ void addInstrRequirements(const MachineInstr &MI,
     Reqs.addCapability(SPIRV::Capability::GroupNonUniformRotateKHR);
     Reqs.addCapability(SPIRV::Capability::GroupNonUniform);
     break;
+  case SPIRV::OpFixedCosALTERA:
+  case SPIRV::OpFixedSinALTERA:
+  case SPIRV::OpFixedCosPiALTERA:
+  case SPIRV::OpFixedSinPiALTERA:
+  case SPIRV::OpFixedExpALTERA:
+  case SPIRV::OpFixedLogALTERA:
+  case SPIRV::OpFixedRecipALTERA:
+  case SPIRV::OpFixedSqrtALTERA:
+  case SPIRV::OpFixedSinCosALTERA:
+  case SPIRV::OpFixedSinCosPiALTERA:
+  case SPIRV::OpFixedRsqrtALTERA:
+    if (!ST.canUseExtension(
+            SPIRV::Extension::SPV_ALTERA_arbitrary_precision_fixed_point))
+      report_fatal_error("This instruction requires the "
+                         "following SPIR-V extension: "
+                         "SPV_ALTERA_arbitrary_precision_fixed_point",
+                         false);
+    Reqs.addExtension(
+        SPIRV::Extension::SPV_ALTERA_arbitrary_precision_fixed_point);
+    Reqs.addCapability(SPIRV::Capability::ArbitraryPrecisionFixedPointALTERA);
+    break;
   case SPIRV::OpGroupIMulKHR:
   case SPIRV::OpGroupFMulKHR:
   case SPIRV::OpGroupBitwiseAndKHR:

llvm/lib/Target/SPIRV/SPIRVPreLegalizer.cpp

@@ -509,7 +509,7 @@ generateAssignInstrs(MachineFunction &MF, SPIRVGlobalRegistry *GR,
 
   bool IsExtendedInts =
       ST->canUseExtension(
-          SPIRV::Extension::SPV_INTEL_arbitrary_precision_integers) ||
+          SPIRV::Extension::SPV_ALTERA_arbitrary_precision_integers) ||
       ST->canUseExtension(SPIRV::Extension::SPV_KHR_bit_instructions) ||
       ST->canUseExtension(SPIRV::Extension::SPV_INTEL_int4);
 

llvm/lib/Target/SPIRV/SPIRVSymbolicOperands.td

@@ -318,7 +318,7 @@ defm SPV_INTEL_io_pipes : ExtensionOperand<63, [EnvOpenCL]>;
 defm SPV_KHR_ray_tracing : ExtensionOperand<64, [EnvVulkan]>;
 defm SPV_KHR_ray_query : ExtensionOperand<65, [EnvVulkan]>;
 defm SPV_INTEL_fpga_memory_accesses : ExtensionOperand<66, [EnvOpenCL]>;
-defm SPV_INTEL_arbitrary_precision_integers : ExtensionOperand<67, [EnvOpenCL]>;
+defm SPV_ALTERA_arbitrary_precision_integers : ExtensionOperand<67, [EnvOpenCL]>;
 defm SPV_EXT_shader_atomic_float_add
     : ExtensionOperand<68, [EnvVulkan, EnvOpenCL]>;
 defm SPV_KHR_terminate_invocation : ExtensionOperand<69, [EnvVulkan]>;
@@ -390,6 +390,7 @@ defm SPV_KHR_maximal_reconvergence : ExtensionOperand<128, [EnvVulkan]>;
 defm SPV_INTEL_bfloat16_arithmetic
     : ExtensionOperand<129, [EnvVulkan, EnvOpenCL]>;
 defm SPV_INTEL_16bit_atomics : ExtensionOperand<130, [EnvVulkan, EnvOpenCL]>;
+defm SPV_ALTERA_arbitrary_precision_fixed_point : ExtensionOperand<131, [EnvOpenCL, EnvVulkan]>;
 
 //===----------------------------------------------------------------------===//
 // Multiclass used to define Capabilities enum values and at the same time
@@ -549,7 +550,7 @@ defm ComputeDerivativeGroupLinearNV : CapabilityOperand<5350, 0, 0, [], []>;
 defm FragmentDensityEXT : CapabilityOperand<5291, 0, 0, [], [Shader]>;
 defm PhysicalStorageBufferAddressesEXT : CapabilityOperand<5347, 0, 0, [], [Shader]>;
 defm CooperativeMatrixNV : CapabilityOperand<5357, 0, 0, [], [Shader]>;
-defm ArbitraryPrecisionIntegersINTEL : CapabilityOperand<5844, 0, 0, [SPV_INTEL_arbitrary_precision_integers], [Int8, Int16]>;
+defm ArbitraryPrecisionIntegersALTERA : CapabilityOperand<5844, 0, 0, [SPV_ALTERA_arbitrary_precision_integers], [Int8, Int16]>;
 defm OptNoneINTEL : CapabilityOperand<6094, 0, 0, [SPV_INTEL_optnone], []>;
 defm OptNoneEXT : CapabilityOperand<6094, 0, 0, [SPV_EXT_optnone], []>;
 defm BitInstructions : CapabilityOperand<6025, 0, 0, [SPV_KHR_bit_instructions], []>;
@@ -615,6 +616,7 @@ defm BFloat16TypeKHR : CapabilityOperand<5116, 0, 0, [SPV_KHR_bfloat16], []>;
 defm BFloat16DotProductKHR : CapabilityOperand<5117, 0, 0, [SPV_KHR_bfloat16], [BFloat16TypeKHR]>;
 defm BFloat16CooperativeMatrixKHR : CapabilityOperand<5118, 0, 0, [SPV_KHR_bfloat16], [BFloat16TypeKHR, CooperativeMatrixKHR]>;
 defm BlockingPipesALTERA : CapabilityOperand<5945, 0, 0, [SPV_ALTERA_blocking_pipes], []>;
+defm ArbitraryPrecisionFixedPointALTERA : CapabilityOperand<5922, 0, 0, [SPV_ALTERA_arbitrary_precision_fixed_point], []>;
 
 //===----------------------------------------------------------------------===//
 // Multiclass used to define SourceLanguage enum values and at the same time