Don't call getName() on literal structs. (#2499)

Signed-off-by: Marcos Maronas <[email protected]>

Original commit:
KhronosGroup/SPIRV-LLVM-Translator@0d83f2233e1f7f6

Author: maarquitos14

llvm-spirv/lib/SPIRV/SPIRVUtil.cpp

@@ -806,8 +806,11 @@ bool getParameterTypes(Function *F, SmallVectorImpl<Type *> &ArgTys,
       HasSret = true;
       unsigned AS = Arg.getType()->getPointerAddressSpace();
       if (auto *STy = dyn_cast<StructType>(Ty))
-        ArgTys.push_back(
-            TypedPointerType::get(GetStructType(STy->getName()), AS));
+        if (STy->hasName())
+          ArgTys.push_back(
+              TypedPointerType::get(GetStructType(STy->getName()), AS));
+        else
+          ArgTys.push_back(TypedPointerType::get(STy, AS));
       else
         ArgTys.push_back(TypedPointerType::get(Ty, AS));
     } else {

llvm-spirv/test/ocl_to_spirv_for_opencl_cpp_with_unnamed_struct.ll

@@ -0,0 +1,17 @@
+;; This test checks if functions in LLVM IR generated from OpenCL_CPP sources
+;; including unnamed structs are correctly translated to SPIR-V.
+
+; RUN: llvm-as %s -o %t.bc
+; RUN: llvm-spirv %t.bc -o %t.spv
+; RUN: spirv-val %t.spv
+
+target datalayout = "e-p:32:32-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024"
+target triple = "spir-unknown-unknown"
+
+%opencl.event_t = type opaque
+
+declare spir_func void @_ZNKSt7complexIfE5__repEv(ptr addrspace(4) dead_on_unwind noalias writable sret({ float, float }) align 4)
+
+!spirv.Source = !{!0}
+
+!0 = !{i32 4, i32 100000}