[OpenCL] Fix SPIR version generation.

[yaxunl]

test/CodeGenOpenCL/spir_version.cl

21

why this is removed?

[echuraev]

test/CodeGenOpenCL/spir_version.cl

21

After my changes, value of SPIR version and OCL will be the same and so, it will be generate only one metadata (e.g. !1 = !{i32 1, i32 2}).
The same situation is for checking CL20 below.

[yaxunl]

test/CodeGenOpenCL/spir_version.cl

21

but line 19 still checking with OCL, shouldn't it be changed to the common version metadata shared between SPIR and OCL? How about rename SPIR in line 18 to VER?

[Anastasia]

test/CodeGenOpenCL/spir_version.cl

17–18

Could we then use VER here too?

27

Btw, would it make sense to add for AMD targets?

CHECK-NOT: !opencl.spir.version

[Anastasia]

LGTM! Thanks!

lib/CodeGen/TargetInfo.cpp

 void SPIRTargetCodeGenInfo::emitTargetMD(const Decl *D, llvm::GlobalValue *GV,
                                          CodeGen::CodeGenModule &CGM) const {
   llvm::LLVMContext &Ctx = CGM.getModule().getContext();
   llvm::Type *Int32Ty = llvm::Type::getInt32Ty(Ctx);
   llvm::Module &M = CGM.getModule();
   // SPIR v2.0 s2.12 - The SPIR version used by the module is stored in the
   // opencl.spir.version named metadata.
   llvm::Metadata *SPIRVerElts[] = {
-      llvm::ConstantAsMetadata::get(llvm::ConstantInt::get(Int32Ty, 2)),
-      llvm::ConstantAsMetadata::get(llvm::ConstantInt::get(Int32Ty, 0))};
+      llvm::ConstantAsMetadata::get(
+          llvm::ConstantInt::get(Int32Ty, CGM.getLangOpts().OpenCLVersion / 100)),
+      llvm::ConstantAsMetadata::get(llvm::ConstantInt::get(
+          Int32Ty, (CGM.getLangOpts().OpenCLVersion / 100 > 1) ? 0 : 2))};
   llvm::NamedMDNode *SPIRVerMD =
       M.getOrInsertNamedMetadata("opencl.spir.version");
   SPIRVerMD->addOperand(llvm::MDNode::get(Ctx, SPIRVerElts));
   appendOpenCLVersionMD(CGM);
 }
 
 static void appendOpenCLVersionMD(CodeGen::CodeGenModule &CGM) {
   llvm::LLVMContext &Ctx = CGM.getModule().getContext();

test/CodeGenOpenCL/spir_version.cl

 // RUN: %clang_cc1 %s -triple "spir-unknown-unknown" -emit-llvm -o - | FileCheck %s --check-prefix=CHECK-SPIR-CL10
 // RUN: %clang_cc1 %s -triple "spir-unknown-unknown" -emit-llvm -o - -cl-std=CL1.2 | FileCheck %s --check-prefix=CHECK-SPIR-CL12
 // RUN: %clang_cc1 %s -triple "spir-unknown-unknown" -emit-llvm -o - -cl-std=CL2.0 | FileCheck %s --check-prefix=CHECK-SPIR-CL20
 // RUN: %clang_cc1 %s -triple "spir64-unknown-unknown" -emit-llvm -o - | FileCheck %s --check-prefix=CHECK-SPIR-CL10
 // RUN: %clang_cc1 %s -triple "spir64-unknown-unknown" -emit-llvm -o - -cl-std=CL1.2 | FileCheck %s --check-prefix=CHECK-SPIR-CL12
 // RUN: %clang_cc1 %s -triple "spir64-unknown-unknown" -emit-llvm -o - -cl-std=CL2.0 | FileCheck %s --check-prefix=CHECK-SPIR-CL20
 
 // RUN: %clang_cc1 %s -triple "amdgcn--amdhsa" -emit-llvm -o - | FileCheck %s --check-prefix=CHECK-AMDGCN-CL10
 // RUN: %clang_cc1 %s -triple "amdgcn--amdhsa" -emit-llvm -o - -cl-std=CL1.2 | FileCheck %s --check-prefix=CHECK-AMDGCN-CL12
 // RUN: %clang_cc1 %s -triple "amdgcn--amdhsa" -emit-llvm -o - -cl-std=CL2.0 | FileCheck %s --check-prefix=CHECK-AMDGCN-CL20
 
 kernel void foo() {}
 
 // CHECK-SPIR-CL10: !opencl.spir.version = !{[[SPIR:![0-9]+]]}
 // CHECK-SPIR-CL10: !opencl.ocl.version = !{[[OCL:![0-9]+]]}
-// CHECK-SPIR-CL10: [[SPIR]] = !{i32 2, i32 0}
+// CHECK-SPIR-CL10: [[SPIR]] = !{i32 1, i32 2}
 // CHECK-SPIR-CL10: [[OCL]] = !{i32 1, i32 0}
-// CHECK-SPIR-CL12: !opencl.spir.version = !{[[SPIR:![0-9]+]]}
-// CHECK-SPIR-CL12: !opencl.ocl.version = !{[[OCL:![0-9]+]]}
-// CHECK-SPIR-CL12: [[SPIR]] = !{i32 2, i32 0}
-// CHECK-SPIR-CL12: [[OCL]] = !{i32 1, i32 2}
-// CHECK-SPIR-CL20: !opencl.spir.version = !{[[SPIR:![0-9]+]]}
-// CHECK-SPIR-CL20: !opencl.ocl.version = !{[[SPIR:![0-9]+]]}
-// CHECK-SPIR-CL20: [[SPIR]] = !{i32 2, i32 0}
+// CHECK-SPIR-CL12: !opencl.spir.version = !{[[VER:![0-9]+]]}
+// CHECK-SPIR-CL12: !opencl.ocl.version = !{[[VER]]}
+// CHECK-SPIR-CL12: [[VER]] = !{i32 1, i32 2}
 
+// CHECK-SPIR-CL20: !opencl.spir.version = !{[[VER:![0-9]+]]}
+// CHECK-SPIR-CL20: !opencl.ocl.version = !{[[VER]]}
+// CHECK-SPIR-CL20: [[VER]] = !{i32 2, i32 0}
+
+// CHECK-AMDGCN-CL10-NOT: !opencl.spir.version
 // CHECK-AMDGCN-CL10: !opencl.ocl.version = !{[[OCL:![0-9]+]]}
 // CHECK-AMDGCN-CL10: [[OCL]] = !{i32 1, i32 0}
+// CHECK-AMDGCN-CL12-NOT: !opencl.spir.version
 // CHECK-AMDGCN-CL12: !opencl.ocl.version = !{[[OCL:![0-9]+]]}
 // CHECK-AMDGCN-CL12: [[OCL]] = !{i32 1, i32 2}
+// CHECK-AMDGCN-CL20-NOT: !opencl.spir.version
 // CHECK-AMDGCN-CL20: !opencl.ocl.version = !{[[OCL:![0-9]+]]}
-// CHECK-AMDGCN-CL20: [[OCL]] = !{i32 2, i32 0}
+// CHECK-AMDGCN-CL20: [[OCL]] = !{i32 2, i32 0}