[SPIR-V] Add SPV_INTEL_memory_access_aliasing extension (llvm#129800)

Spec can be found here intel/llvm#15225
 TODO for future patches:
- During spec review need to decide whether only FunctionCall or Atomic
instructions can be decorated and if not - move the code around adding
handling for other instructions;
- Handle optional string metadata;
- Handle LLVM atomic instructions;
- Handle SPIR-V friendly atomic calls returning via sret argument.

Signed-off-by: Sidorov, Dmitry <[email protected]>

Author: VishMCW

llvm/include/llvm/IR/IntrinsicsSPIRV.td

@@ -140,7 +140,6 @@ let TargetPrefix = "spv" in {
 
   // Memory aliasing intrinsics
   def int_spv_assign_aliasing_decoration : Intrinsic<[], [llvm_any_ty, llvm_i32_ty, llvm_metadata_ty], [ImmArg<ArgIndex<1>>]>;
-
   // FPMaxErrorDecorationINTEL
   def int_spv_assign_fpmaxerror_decoration: Intrinsic<[], [llvm_any_ty, llvm_metadata_ty]>;
 }

llvm/lib/Target/SPIRV/SPIRVSymbolicOperands.td

@@ -514,6 +514,7 @@ defm BindlessImagesINTEL : CapabilityOperand<6528, 0, 0, [SPV_INTEL_bindless_ima
 defm MemoryAccessAliasingINTEL : CapabilityOperand<5910, 0, 0, [SPV_INTEL_memory_access_aliasing], []>;
 defm FPMaxErrorINTEL : CapabilityOperand<6169, 0, 0, [SPV_INTEL_fp_max_error], []>;
 defm FPGAMemoryAccessesINTEL : CapabilityOperand<5898, 0, 0, [SPV_INTEL_fpga_memory_accesses], []>;
+defm MemoryAccessAliasingINTEL : CapabilityOperand<5910, 0, 0, [SPV_INTEL_memory_access_aliasing], []>;
 
 //===----------------------------------------------------------------------===//
 // Multiclass used to define SourceLanguage enum values and at the same time
@@ -1269,6 +1270,8 @@ defm BurstCoalesceINTEL : DecorationOperand<5899, 0, 0, [], [FPGAMemoryAccessesI
 defm CacheSizeINTEL : DecorationOperand<5900, 0, 0, [], [FPGAMemoryAccessesINTEL]>;
 defm DontStaticallyCoalesceINTEL  : DecorationOperand<5901, 0, 0, [], [FPGAMemoryAccessesINTEL]>;
 defm PrefetchINTEL : DecorationOperand<5902, 0, 0, [], [FPGAMemoryAccessesINTEL]>;
+defm AliasScopeINTEL : DecorationOperand<5914, 0, 0, [], [MemoryAccessAliasingINTEL]>;
+defm NoAliasINTEL : DecorationOperand<5915, 0, 0, [], [MemoryAccessAliasingINTEL]>;
 
 
 //===----------------------------------------------------------------------===//