also test revervse spirv->llvm translation

Author: karolzwolak

test/gep-operand-source-mismatch.ll

@@ -1,24 +1,32 @@
 ; RUN: llvm-as %s -o %t.bc
-; RUN: llvm-spirv %t.bc -spirv-text -o - | FileCheck %s
 ; RUN: llvm-spirv %t.bc -o %t.spv
+; RUN: spirv-val %t.spv
+; RUN: llvm-spirv %t.spv -o %t.spt --to-text
+; RUN: llvm-spirv -r %t.spv -o %t.rev.bc
+; RUN: llvm-dis %t.rev.bc
+; RUN: FileCheck %s --input-file %t.spt -check-prefix=CHECK-SPIRV
+; RUN: FileCheck %s --input-file %t.rev.ll  -check-prefix=CHECK-LLVM
 
 ; Make sure that when the GEP operand type doesn't match the source element type (here operand a_var is [2 x i16], but the source element is i8),
 ; we cast the operand to the source element pointer type (a_var to i8*).
 
 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"
 
-; CHECK-DAG: Name [[A_VAR:[0-9]+]] "a_var"
-; CHECK-DAG: Name [[GLOBAL_PTR:[0-9]+]] "global_ptr"
+; CHECK-SPIRV-DAG: Name [[A_VAR:[0-9]+]] "a_var"
+; CHECK-SPIRV-DAG: Name [[GLOBAL_PTR:[0-9]+]] "global_ptr"
 
-; CHECK-DAG: TypeArray [[ARRAY_TYPE:[0-9]+]] [[USHORT_TYPE:[0-9]+]] [[CONST_2:[0-9]+]]
-; CHECK-DAG: TypePointer [[ARRAY_PTR_TYPE:[0-9]+]] 5 [[ARRAY_TYPE]]
+; CHECK-SPIRV-DAG: TypeArray [[ARRAY_TYPE:[0-9]+]] [[USHORT_TYPE:[0-9]+]] [[CONST_2:[0-9]+]]
+; CHECK-SPIRV-DAG: TypePointer [[ARRAY_PTR_TYPE:[0-9]+]] 5 [[ARRAY_TYPE]]
 
-; CHECK-DAG: Variable [[ARRAY_PTR_TYPE]] [[A_VAR]] 5 [[INIT_ID:[0-9]+]]
-; CHECK-DAG: SpecConstantOp [[I8PTR:[0-9]+]] [[BITCAST:[0-9]+]] 124 [[A_VAR]]
-; CHECK-DAG: SpecConstantOp [[I8PTR]] [[PTRCHAIN:[0-9]+]] 67 [[BITCAST]] [[INDEX_ID:[0-9]+]]
-; CHECK-DAG: TypePointer [[PTR_PTR_TYPE:[0-9]+]] 5 [[I8PTR]]
-; CHECK-DAG: Variable [[PTR_PTR_TYPE]] [[GLOBAL_PTR]] 5 [[PTRCHAIN]]
+; CHECK-SPIRV-DAG: Variable [[ARRAY_PTR_TYPE]] [[A_VAR]] 5 [[INIT_ID:[0-9]+]]
+; CHECK-SPIRV-DAG: SpecConstantOp [[I8PTR:[0-9]+]] [[BITCAST:[0-9]+]] 124 [[A_VAR]]
+; CHECK-SPIRV-DAG: SpecConstantOp [[I8PTR]] [[PTRCHAIN:[0-9]+]] 67 [[BITCAST]] [[INDEX_ID:[0-9]+]]
+; CHECK-SPIRV-DAG: TypePointer [[PTR_PTR_TYPE:[0-9]+]] 5 [[I8PTR]]
+; CHECK-SPIRV-DAG: Variable [[PTR_PTR_TYPE]] [[GLOBAL_PTR]] 5 [[PTRCHAIN]]
+
+; CHECK-LLVM: @global_ptr = addrspace(1) global ptr addrspace(1) getelementptr (i8, ptr addrspace(1) @a_var, i64 2), align 8
+; CHECK-LLVM-NOT: @global_ptr = addrspace(1) global ptr addrspace(1) getelementptr ([2 x i16], ptr addrspace(1) @a_var, i64 2), align 8
 
 @a_var = dso_local addrspace(1) global [2 x i16] [i16 4, i16 5], align 2
 @global_ptr = dso_local addrspace(1) global ptr addrspace(1) getelementptr (i8, ptr addrspace(1) @a_var, i64 2), align 8