[Backport to 20] Deprecate SPV_INTEL_token_type (#3025) (#3086)

Token type will stop being generated by the writer. Yet it still be
consumed by the reader.

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

Author: MrSidims

lib/SPIRV/SPIRVWriter.cpp

@@ -400,16 +400,6 @@ SPIRVType *LLVMToSPIRVBase::transType(Type *T) {
   if (T->isFloatingPointTy())
     return mapType(T, BM->addFloatType(T->getPrimitiveSizeInBits()));
 
-  if (T->isTokenTy()) {
-    BM->getErrorLog().checkError(
-        BM->isAllowedToUseExtension(ExtensionID::SPV_INTEL_token_type),
-        SPIRVEC_RequiresExtension,
-        "SPV_INTEL_token_type\n"
-        "NOTE: LLVM module contains token type, which doesn't have analogs in "
-        "SPIR-V without extensions");
-    return mapType(T, BM->addTokenTypeINTEL());
-  }
-
   // A pointer to image or pipe type in LLVM is translated to a SPIRV
   // (non-pointer) image or pipe type.
   if (T->isPointerTy()) {
@@ -620,6 +610,14 @@ SPIRVType *LLVMToSPIRVBase::transType(Type *T) {
     }
   }
 
+  if (T->isTokenTy()) {
+    BM->getErrorLog().checkError(
+        false, SPIRVEC_InvalidModule,
+        "LLVM module contains token type, which doesn't have a counterpart in "
+        "SPIR-V");
+    return nullptr;
+  }
+
   llvm_unreachable("Not implemented!");
   return 0;
 }

test/extensions/INTEL/SPV_INTEL_token_type/token_type_intel.ll

@@ -0,0 +1,50 @@
+; RUN: llvm-spirv %s -to-binary -o %t.spv
+; RUN: llvm-spirv -r %t.spv -o %t.rev.bc
+; RUN: llvm-dis %t.rev.bc -o - | FileCheck %s --check-prefix=CHECK-LLVM
+
+; CHECK-LLVM: declare token @llvm.tokenfoo()
+
+119734787 65536 393230 13 0
+2 Capability Addresses
+2 Capability Linkage
+2 Capability Kernel
+2 Capability TokenTypeINTEL
+7 Extension "SPV_INTEL_token_type"
+5 ExtInstImport 1 "OpenCL.std"
+3 MemoryModel 1 2
+4 EntryPoint 6 10 "foo"
+3 Source 3 102000
+6 Name 4 "llvm.tokenfoo"
+3 Name 7 "foo"
+4 Name 8 "entry"
+3 Name 9 "tok"
+
+8 Decorate 4 LinkageAttributes "llvm.tokenfoo" Import
+5 Decorate 7 LinkageAttributes "foo" Export
+2 TypeTokenINTEL 2
+3 TypeFunction 3 2
+2 TypeVoid 5
+3 TypeFunction 6 5
+
+
+
+5 Function 2 4 0 3
+
+1 FunctionEnd
+
+5 Function 5 7 0 6
+
+2 Label 8
+4 FunctionCall 2 9 4
+1 Return
+
+1 FunctionEnd
+
+5 Function 5 10 0 6
+
+2 Label 11
+4 FunctionCall 5 12 7
+1 Return
+
+1 FunctionEnd
+

test/extensions/INTEL/SPV_INTEL_token_type/token_type_intel.spt

@@ -1,13 +1,9 @@
 ; Check whether the translator reports an error for a module with token type
-; if SPV_INTEL_token_type extension is not used.
 
 ; RUN: llvm-as < %s -o %t.bc
 ; RUN: not llvm-spirv %t.bc 2>&1 --spirv-allow-unknown-intrinsics | FileCheck %s
 
-; CHECK: RequiresExtension: Feature requires the following SPIR-V extension:
-; CHECK-NEXT: SPV_INTEL_token_type
-; CHECK-NEXT: NOTE: LLVM module contains token type, which doesn't have analogs
-; CHECK-SAME: in SPIR-V without extensions
+; CHECK: InvalidModule: Invalid SPIR-V module: LLVM module contains token type, which doesn't have a counterpart in SPIR-V
 
 ; ModuleID = 'token.bc'
 target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v16:16:16-v24:32:32-v32:32:32-v48:64:64-v64:64:64-v96:128:128-v128:128:128-v192:256:256-v256:256:256-v512:512:512-v1024:1024:1024"