Use stackcall ABI v2 in VC when emitting zebin

Scalar BE uses stackcall ABI v2 for ze binaries. VC should follow this
convension to allow interop.

Author: vmustya

IGC/VectorCompiler/include/vc/Driver/Driver.h

@@ -47,8 +47,6 @@ enum class FileType { SPIRV, LLVM_TEXT, LLVM_BINARY };
 
 enum class OptimizerLevel { None, Full };
 
-enum class BinaryKind { CM, OpenCL, ZE };
-
 enum class GlobalsLocalizationMode { All, No, Vector, Partial };
 
 enum class DisableLRCoalescingControl { Default, Disable, Enable };

IGC/VectorCompiler/include/vc/Support/BackendConfig.h

@@ -42,6 +42,10 @@ SPDX-License-Identifier: MIT
 
 enum class FunctionControl { Default, StackCall };
 
+namespace vc {
+enum class BinaryKind { CM, OpenCL, ZE };
+} // namespace vc
+
 namespace llvm {
 
 void initializeGenXBackendConfigPass(PassRegistry &PR);
@@ -117,6 +121,9 @@ struct GenXBackendOptions {
   // Use bindless mode for buffers.
   bool UseBindlessBuffers = false;
 
+  // Output binary format
+  vc::BinaryKind Binary = vc::BinaryKind::OpenCL;
+
   // Add vISA asm as sections in ZeBin
   bool EmitZebinVisaSections = false;
 
@@ -342,6 +349,8 @@ class GenXBackendConfig : public ImmutablePass {
   unsigned getInteropSubgroupSize() const {
     return Options.InteropSubgroupSize;
   }
+
+  vc::BinaryKind getBinaryFormat() const { return Options.Binary; }
 };
 } // namespace llvm
 

IGC/VectorCompiler/lib/Driver/Driver.cpp

@@ -249,6 +249,8 @@ static GenXBackendOptions createBackendOptions(const vc::CompileOptions &Opts) {
   if (Opts.InteropSubgroupSize)
     BackendOpts.InteropSubgroupSize = Opts.InteropSubgroupSize;
 
+  BackendOpts.Binary = Opts.Binary;
+
   BackendOpts.DisableLiveRangesCoalescing =
       getDefaultOverridableFlag(Opts.DisableLRCoalescingMode, false);
   BackendOpts.DisableExtraCoalescing =

IGC/VectorCompiler/lib/GenXCodeGen/GenXCisaBuilder.cpp

@@ -6688,11 +6688,15 @@ collectFinalizerArgs(StringSaver &Saver, const GenXSubtarget &ST,
     addArgument("1");
   }
   if (ST.isOCLRuntime()) {
-      addArgument("-oclRuntime");
+    addArgument("-oclRuntime");
   }
   if (!BC.getVISALTOStrings().empty()) {
     addArgument("-noStitchExternFunc");
   }
+  if (BC.getBinaryFormat() == vc::BinaryKind::ZE) {
+    addArgument("-abiver");
+    addArgument("2");
+  }
   return Argv;
 }