# REQUIRES: lldb-formatters-compatibility
#
# RUN: split-file %s %t
# RUN: lldb -x \
# RUN:   -o 'command script import %llvm_src_root/utils/lldbDataFormatters.py' \
# RUN:   -s %t/commands.input %llvm_tools_dir/check-lldb-llvm-support-pointer-union \
# RUN:   -o quit \
# RUN:   | FileCheck %t/checks

#--- commands.input
break set -p "Break here"
run

p &f
p &a
p &z
p &derived
p &dv
v -T z_float
v -T raw_z_float
v -T null_float
v -T long_int_float
v -T z_only
v -T union_int_pair
p z_float.Pointer
p union_int_pair.Pointer
p union_int_pair.Pointer.Pointer

continue

v -T z_float

continue

v -T virtual_float
p virtual_float.Pointer

continue

p &local
v -T local_float

continue

p &a4_0
p &a8_0
v -T varwidth
v -T varwidth_tier1

#--- checks
# CHECK:      (lldb) p &f
# CHECK-NEXT: (float *) [[PTR_F:0x[0-9a-zA-Z]+]]

# CHECK:      (lldb) p &a
# CHECK-NEXT: (int *) [[PTR_A:0x[0-9a-zA-Z]+]]

# CHECK:      (lldb) p &z
# CHECK-NEXT: (Z *) [[PTR_Z:0x[0-9a-zA-Z]+]]

# CHECK:      (lldb) p &derived
# CHECK-NEXT: (Derived *) [[PTR_DERIVED:0x[0-9a-zA-Z]+]]

# CHECK:      (lldb) p &dv
# CHECK-NEXT: (DerivedWithVirtual *) [[PTR_DV:0x[0-9a-zA-Z]+]]

# CHECK:      (lldb) v -T z_float
# CHECK-NEXT: (llvm::PointerUnion<Z *, float *>) z_float = {
# CHECK-NEXT:   (float *) Pointer = [[PTR_F]]
# CHECK-NEXT: }

# CHECK:      (lldb) v -T raw_z_float
# CHECK-NEXT: (llvm::PointerUnion<Z *, float *>) raw_z_float = {
# CHECK-NEXT:   (Z *) Pointer = nullptr
# CHECK-NEXT: }

# null float* has non-zero raw_value (tag=1), pointer component=0.
# LLDB renders this as an address literal rather than nullptr.
# CHECK:      (lldb) v -T null_float
# CHECK-NEXT: (llvm::PointerUnion<Z *, float *>) null_float = {
# CHECK-NEXT:   (float *) Pointer = 0x{{0+}}
# CHECK-NEXT: }

# CHECK:      (lldb) v -T long_int_float
# CHECK-NEXT: (llvm::PointerUnion<long long *, int *, float *>) long_int_float = {
# CHECK-NEXT:   (int *) Pointer = [[PTR_A]]
# CHECK-NEXT: }

# CHECK:      (lldb) v -T z_only
# CHECK-NEXT: (llvm::PointerUnion<Z *>) z_only = {
# CHECK-NEXT:   (Z *) Pointer = [[PTR_Z]]
# CHECK-NEXT: }

# CHECK:      (lldb) v -T union_int_pair
# CHECK-NEXT: (llvm::PointerIntPair<llvm::PointerUnion<Z *, float *>, 1>) union_int_pair = {
# CHECK-NEXT:   (llvm::PointerUnion<Z *, float *>) Pointer = {
# CHECK-NEXT:     (float *) Pointer = [[PTR_F]]
# CHECK-NEXT:   }
# CHECK-NEXT:   (unsigned int) Int = 1
# CHECK-NEXT: }

# CHECK:      (lldb) p z_float.Pointer
# CHECK-NEXT: (float *) [[PTR_F]]

# CHECK:      (lldb) p union_int_pair.Pointer
# CHECK-NEXT: (llvm::PointerUnion<Z *, float *>) {
# CHECK-NEXT:   Pointer = [[PTR_F]]
# CHECK-NEXT: }

# CHECK:      (lldb) p union_int_pair.Pointer.Pointer
# CHECK-NEXT: (float *) [[PTR_F]]

# CHECK:      (lldb) v -T z_float
# CHECK-NEXT: (llvm::PointerUnion<Z *, float *>) z_float = {
# CHECK-NEXT:   (Z *) Pointer = [[PTR_DERIVED]]
# CHECK-NEXT: }

# CHECK:      (lldb) v -T virtual_float
# CHECK-NEXT: (llvm::PointerUnion<HasVirtual *, float *>) virtual_float = {
# CHECK-NEXT:   (DerivedWithVirtual *) Pointer = [[PTR_DV]]
# CHECK-NEXT: }

# CHECK:      (lldb) p virtual_float.Pointer
# CHECK-NEXT: (DerivedWithVirtual *) [[PTR_DV]]

# CHECK:      (lldb) p &local
# CHECK-NEXT: (Local *) [[PTR_LOCAL:0x[0-9a-zA-Z]+]]

# CHECK:      (lldb) v -T local_float
# CHECK-NEXT: (llvm::PointerUnion<Local *, float *>) local_float = {
# CHECK-NEXT:   (Local *) Pointer = [[PTR_LOCAL]]
# CHECK-NEXT: }

# CHECK:      (lldb) p &a4_0
# CHECK-NEXT: (Align4<0> *) [[PTR_A4:0x[0-9a-zA-Z]+]]

# CHECK:      (lldb) p &a8_0
# CHECK-NEXT: (Align8<0> *) [[PTR_A8:0x[0-9a-zA-Z]+]]

# Variable-width tag encoding: formatter falls back to void* with
# tag bits stripped, since fixed-width decoding doesn't apply.
# CHECK:      (lldb) v -T varwidth
# CHECK-NEXT: (llvm::PointerUnion<Align4<0> *, Align4<1> *, Align4<2> *, Align8<0> *, Align8<1> *>) varwidth = {
# CHECK-NEXT:   (void *) Pointer = [[PTR_A4]]
# CHECK-NEXT: }

# CHECK:      (lldb) v -T varwidth_tier1
# CHECK-NEXT: (llvm::PointerUnion<Align4<0> *, Align4<1> *, Align4<2> *, Align8<0> *, Align8<1> *>) varwidth_tier1 = {
# CHECK-NEXT:   (void *) Pointer = [[PTR_A8]]
# CHECK-NEXT: }