Addtion of struct.ll and unnamed-global.ll (#3327)

--Test for structs and unnamed globals.

Original commit:
KhronosGroup/SPIRV-LLVM-Translator@2a051c50cd1a11a

Author: aadeshps-mcw

llvm-spirv/test/struct.ll

@@ -0,0 +1,67 @@
+; RUN: llvm-as < %s -o %t.bc
+; RUN: llvm-spirv %t.bc -o %t.spv
+; RUN: spirv-val %t.spv
+; RUN: llvm-spirv -to-text %t.spv -o - | FileCheck %s
+; RUN: llvm-spirv -r %t.spv -o %t.rev.bc
+; RUN: llvm-dis < %t.rev.bc | FileCheck %s --check-prefix=CHECK-LLVM
+
+target datalayout = "e-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024-n8:16:32:64"
+target triple = "spir64-unknown-unknown"
+
+%struct.ST = type { i32, i32, i32 }
+
+; CHECK-DAG:  Name [[#STRUCT_TYPE_ID:]] "struct.ST"
+; CHECK: TypeInt [[#INT_TYPE:]] 32 0
+; CHECK: Constant [[#INT_TYPE]] [[#CONST_0:]] 0
+; CHECK: Constant [[#INT_TYPE]] [[#CONST_1:]] 1
+; CHECK: Constant [[#INT_TYPE]] [[#CONST_2:]] 2
+; CHECK: Constant [[#INT_TYPE]] [[#CONST_3:]] 3
+; CHECK: TypeStruct [[#STRUCT_TYPE_ID]] [[#INT_TYPE]] [[#INT_TYPE]] [[#INT_TYPE]]
+; CHECK: TypePointer [[#PTR_STRUCT_TYPE_ID:]] 7 [[#STRUCT_TYPE_ID]]
+; CHECK: TypePointer [[#PTR_INT_TYPE_ID:]] 7 [[#INT_TYPE]]
+
+; CHECK: Function
+; CHECK: Label
+; CHECK: Variable [[#PTR_STRUCT_TYPE_ID]] [[#ST_VAR_ID:]] 
+; CHECK: InBoundsPtrAccessChain [[#PTR_INT_TYPE_ID]] [[#]] [[#ST_VAR_ID]] [[#CONST_0]] [[#CONST_0]]
+; CHECK: Store
+; CHECK: InBoundsPtrAccessChain [[#PTR_INT_TYPE_ID]] [[#]] [[#ST_VAR_ID]] [[#CONST_0]] [[#CONST_1]]
+; CHECK: Store
+; CHECK: InBoundsPtrAccessChain [[#PTR_INT_TYPE_ID]] [[#]] [[#ST_VAR_ID]] [[#CONST_0]] [[#CONST_2]]
+; CHECK: Store
+; CHECK: InBoundsPtrAccessChain [[#PTR_INT_TYPE_ID]] [[#]] [[#ST_VAR_ID]] [[#CONST_0]] [[#CONST_0]]
+; CHECK: Load [[#INT_TYPE]] [[#A1_LOAD_ID:]] [[#]]
+; CHECK: InBoundsPtrAccessChain [[#PTR_INT_TYPE_ID]] [[#]] [[#ST_VAR_ID]] [[#CONST_0]] [[#CONST_1]]
+; CHECK: Load [[#INT_TYPE]] [[#B2_LOAD_ID:]] [[#]]
+; CHECK: IAdd [[#INT_TYPE]] [[#ADD_ID:]] [[#A1_LOAD_ID]] [[#B2_LOAD_ID]]
+; CHECK: InBoundsPtrAccessChain [[#PTR_INT_TYPE_ID]] [[#]] [[#ST_VAR_ID]] [[#CONST_0]] [[#CONST_2]]
+; CHECK: Load [[#INT_TYPE]] [[#C3_LOAD_ID:]] [[#]]
+; CHECK: IAdd [[#INT_TYPE]] [[#]] [[#ADD_ID]] [[#C3_LOAD_ID]]
+
+; CHECK-LLVM: %{{.*}} = getelementptr inbounds %struct.ST, ptr %st, i32 0, i32 0
+; CHECK-LLVM: %{{.*}} = getelementptr inbounds %struct.ST, ptr %st, i32 0, i32 1
+; CHECK-LLVM: %{{.*}} = getelementptr inbounds %struct.ST, ptr %st, i32 0, i32 2
+; CHECK-LLVM: %{{.*}} = getelementptr inbounds %struct.ST, ptr %st, i32 0, i32 0
+; CHECK-LLVM: %{{.*}} = getelementptr inbounds %struct.ST, ptr %st, i32 0, i32 1
+; CHECK-LLVM: %{{.*}} = getelementptr inbounds %struct.ST, ptr %st, i32 0, i32 2
+
+define dso_local spir_func i32 @func() {
+entry:
+
+  %st = alloca %struct.ST, align 4
+  %a = getelementptr inbounds %struct.ST, ptr %st, i32 0, i32 0
+  store i32 1, ptr %a, align 4
+  %b = getelementptr inbounds %struct.ST, ptr %st, i32 0, i32 1
+  store i32 2, ptr %b, align 4
+  %c = getelementptr inbounds %struct.ST, ptr %st, i32 0, i32 2
+  store i32 3, ptr %c, align 4
+  %a1 = getelementptr inbounds %struct.ST, ptr %st, i32 0, i32 0
+  %0 = load i32, ptr %a1, align 4
+  %b2 = getelementptr inbounds %struct.ST, ptr %st, i32 0, i32 1
+  %1 = load i32, ptr %b2, align 4
+  %add = add nsw i32 %0, %1
+  %c3 = getelementptr inbounds %struct.ST, ptr %st, i32 0, i32 2
+  %2 = load i32, ptr %c3, align 4
+  %add4 = add nsw i32 %add, %2
+  ret i32 %add4
+}

llvm-spirv/test/unnamed-global.ll

@@ -0,0 +1,25 @@
+; RUN: llvm-as < %s -o %t.bc
+; RUN: llvm-spirv %t.bc -o %t.spv
+; RUN: spirv-val %t.spv
+; RUN: llvm-spirv -to-text %t.spv -o - | FileCheck %s
+; RUN: llvm-spirv -r %t.spv -o %t.rev.bc
+; RUN: llvm-dis < %t.rev.bc | FileCheck %s --check-prefix=CHECK-LLVM
+
+target datalayout = "e-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024-n8:16:32:64"
+target triple = "spir64-unknown-unknown"
+
+; CHECK: TypeInt [[#INT_ID:]] 8 0
+; CHECK: Constant [[#INT_ID]] [[#CONST_ID:]] 123
+; CHECK: TypePointer [[#PTR_ID:]] [[#SC:]] [[#INT_ID]]
+; CHECK: Variable [[#PTR_ID]] [[#VAR_ID:]] [[#SC]] [[#CONST_ID]]
+
+; CHECK-LLVM: @0 = addrspace(1) global i8 123
+
+@0 = addrspace(1) global i8 123
+
+; Function Attrs: nounwind
+define spir_kernel void @foo() #0 {
+  ret void
+}
+
+attributes #0 = { nounwind }