Addition of lshr-constexpr.ll and opaque-pointers.ll (#3326)

Added test files for lshr constexpr and opaque pointers

Author: aadeshps-mcw

test/lshr-constexpr.ll

@@ -0,0 +1,30 @@
+; 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 [[#Int64Ty:]] 64 0
+; CHECK: TypeInt [[#Int32Ty:]] 32 0
+; CHECK: Constant [[#Int32Ty]] [[#One32:]] 1
+; CHECK: Constant [[#Int64Ty]] [[#ShiftAmt:]] 32 0
+; CHECK: TypeVector [[#Vec2Int32Ty:]] [[#Int32Ty]] 2
+; CHECK: ConstantComposite [[#Vec2Int32Ty]] [[#VecConst:]] [[#One32]] [[#One32]]
+; CHECK: Bitcast [[#Int64Ty]] [[#BitcastedVal:]] [[#VecConst]]
+; CHECK: ShiftRightLogical [[#Int64Ty]] [[#Shifted:]] [[#BitcastedVal]] [[#ShiftAmt]]
+
+; CHECK-LLVM: define spir_func void @foo(ptr [[arg:%.*]])
+; CHECK-LLVM:   [[bc:%.*]] = bitcast <2 x i32> splat (i32 1) to i64
+; CHECK-LLVM:   [[shr:%.*]] = lshr i64 [[bc]], 32
+; CHECK-LLVM:   store i64 [[shr]], ptr [[arg]], align 8
+
+define void @foo(ptr %arg) {
+entry:
+  %0 = lshr i64 bitcast (<2 x i32> <i32 1, i32 1> to i64), 32
+  store i64 %0, i64* %arg
+  ret void
+}

test/type-scavenger/opaque_pointers.ll

@@ -0,0 +1,34 @@
+; 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 [[#Int64Ty:]] 64 0
+; CHECK: TypeInt [[#Int32Ty:]] 32 0
+; CHECK: Constant [[#Int32Ty]] [[#ZeroConst:]] 0
+; CHECK: TypePointer [[#PtrInt32Ty:]] 7 [[#Int32Ty]]
+; CHECK: TypeFunction [[#FTy:]] [[#Int64Ty]] [[#PtrInt32Ty]]
+; CHECK: TypePointer [[#PtrInt64Ty:]] 7 [[#Int64Ty]]
+
+; CHECK: Function [[#Int64Ty]] [[#FuncId:]] 0 [[#FTy]]
+; CHECK: FunctionParameter [[#PtrInt32Ty]] [[#ParamId:]]
+; CHECK: Store [[#ParamId]] [[#ZeroConst]] 2 4
+; CHECK: Bitcast [[#PtrInt64Ty]] [[#CastId:]] [[#ParamId]]
+; CHECK: Load [[#Int64Ty]] [[#ResultId:]] [[#CastId]] 2 4
+; CHECK: ReturnValue [[#ResultId]]
+
+; CHECK-LLVM: define spir_func i64 @test(ptr [[p:%.*]])
+; CHECK-LLVM:   store i32 0, ptr [[p]], align 4
+; CHECK-LLVM:   [[bc:%.*]] = bitcast ptr [[p]] to ptr
+; CHECK-LLVM:   [[v:%.*]] = load i64, ptr [[bc]], align 4
+
+define i64 @test(ptr %p) {
+  store i32 0, ptr %p, align 4
+  %v = load i64, ptr %p, align 4
+  ret i64 %v
+}