Here are the classes, structs, unions and interfaces with brief descriptions:

__unw_info_struct
__unw_table_entry_struct
_Cif_File_Tbl
_Cif_Mem_Area
_COMPLEX32
_COMPLEX64
_COMPLEXQD
_dal_s
_dsz_s
_dval
_FCD
_full_split_st
_ldblval
_menu_item
_Unwind_Context
_Unwind_Exception
_X_LIST_TAG_
abi
abi_property
ac_cmd_line_flags_entry
adjust_type_size_op< T >
aenv_stack
aio_desc
al
ALIAS_RULE
aligned_value_entry
alist
alt_kwd_entry
ANL_CBUF
ANL_DIAGNOSTICS
ANL_FILE_MNGR
ANL_FUNC_ENTRY
ANL_LOOP_CONSTRUCT
ANL_PRAGMA_ATTRIBUTE
ANL_PRAGMA_CONSTRUCT
ANL_REGION_CONSTRUCT
ANL_SRCPOS
ANL_VAR
ANL_VARLIST
AR_CPLX_CRAY_128
AR_CPLX_CRAY_64
AR_CPLX_IEEE_128
AR_CPLX_IEEE_32
AR_CPLX_IEEE_64
AR_CPLX_MIPS_128
AR_CRAY_128
AR_CRAY_64
ar_data
AR_DATA
AR_IEEE_128
AR_IEEE_32
AR_IEEE_64
AR_INT_128
AR_INT_64
AR_INT_8_64
AR_MIPS_128
ar_state_info
ARB
ARB_HANDLE
arg_desc_header
arg_desc_node
arg_strct
arg_ty_comp
arg_ty_list
Array_Distribution
Array_Segment
ARRAY_SUMMARY
assign_cntl
assign_environment
assign_info_s
assign_obj_id
assign_record
Assign_Section_Names
attr_aux_tbl_entry
attr_list_tbl_entry
attr_tbl_entry
attribute
audhead
AUX_LABEL_INFO
auxst
AUXST_TAB
AUXST_TAB_SYMTAB_ACCESS
b_and_o
BE_PREG
BE_PU
BE_SCOPE
BE_SCOPE_TAB_BE_ST_TAB_ACCESS
BE_ST
BINARY_TREE< BINARY_NODE >
BINARY_TREE_NODE< BINARY_NODE >
bio_spec_list
biword
blist
BLK
blk_stk_entry
block_list_items
block_stack_t
bnm
bounds_tbl_entry
breath_first_iter< GRAPH, ITERATOR, VISITED >
breath_first_tree_iter< TREE, ITERATOR >
BUFFERS
bufstruct
build_type_mod_map
BUNDLE_FIELD
BUNDLE_PACK_INFO
c_funs_s
Callback
CallSite
catmsg_t
cc_arg_entry
cc_attr_entry
cc_blk_stk_entry
cc_darg_entry
cc_id_str_entry
cc_stmt_buf_line_entry
cc_token_entry
cdir_switch_entry
CFG_NODE_INFO
CHAIN
CHAIN_ITER
CHAIN_NODE
change_type_op< T >
char_ss_compare
CHARACTER_ARRAY
CIF_basic_type
Cif_c_const
Cif_c_entry
Cif_c_message
Cif_c_object
Cif_c_opts
Cif_c_tag
Cif_callsite
Cif_cifhdr
Cif_comblk
Cif_const
Cif_dim
Cif_edopts
Cif_endunit
Cif_entry
CIF_enum_constant
Cif_f90_dim_entry
Cif_f90_level_opt_entry
Cif_file
CIF_file_header
Cif_filedir
CIF_func_usage
CIF_function
Cif_generic
CIF_generic
Cif_geometry_dim_entry
CIF_hash_entry
Cif_include
CIF_index_entry
CIF_kid
Cif_label
Cif_loop
Cif_mach_char
CIF_macro
Cif_message
Cif_misc_opts
CIF_n_kids_type
Cif_namelist
CIF_namespace
Cif_nd_msg
Cif_object
CIF_object
CIF_one_kid_type
Cif_opt_opts
CIF_pu_def
CIF_source_file
Cif_srcfile
Cif_stmt_type
Cif_summary
Cif_tmod
CIF_two_kids_type
Cif_unit
Cif_unitdir
Cif_unittbl
Cif_urectbl
Cif_usage
CIF_usage
Cif_use
ciitem_entry
ciitem_tbl_entry
cilist1
cilist_header
clist
CLIST
clist_flags
CLIST_ITER
CLIST_NODE
cllist
close_spec_list
CM
cm_rlc
cm_struct
cmd_line_flags_entry
Common_Block
comp_aliased
comp_same_label_no
comp_same_pragma
comp_same_pt
COMPACT_RELOC
COMPACT_RELOC_BASE
COMPACT_RELOC_C
COMPACT_RELOC_C_BASE
complex
const_search_tbl_entry
const_tbl_entry
Context
CONTROL_GROUP_INFO
CONTROL_INFO
ControlList
Conv_Op
COUNTER
counts_desc
counts_entry
Counts_hdr
counts_rec
cs_idx_tbl_entry
CTR
CTRL_VAL_SET
cvt_rule
RES_REQ::CYCLE_RES
data_element_s
data_info_s
DaVinci
DaVinci_Callback
dblcmplx
dcomplex
debug_flags
definition
dep_order_iter< GRAPH, SUCC_ITERATOR, PRED_ITERATOR, VISITED >
dependency
depth_first_iter< GRAPH, ITERATOR, VISITED >
depth_first_tree_iter< TREE, ITERATOR >
dfn
dictinfo
digraph< NODE, EDGE >
digraph_edge< NODE, EDGE >
digraph_node< NODE, EDGE >
Dims
dir_info_entry
Dl_info
Do_Loop_Bound
dope_header
dope_header1
dope_header2
DopeVector
dovarlist
DRA_GLOBAL_INFO
DRA_INFO
DST_array_type
DST_assoc_info
DST_basetype
DST_CHILDREN
DST_common_block
DST_common_incl
DST_compile_unit
DST_const_decl
DST_const_def
DST_const_value
DST_constant
DST_cval_ref
DST_entry_point
DST_enumeration_type
DST_enumerator
DST_file_name
DST_formal_parameter
DST_idx
DST_include_dir
DST_info
DST_inheritance
DST_inlined_subroutine
DST_label
DST_lexical_block
DST_member
DST_pointer_type
DST_ptr_to_member_type
DST_qualified_type
DST_string_type
DST_structure_type
DST_subpr_decl
DST_subpr_def
DST_subpr_memdef
DST_subprogram
DST_subrange_type
DST_subroutine_type
DST_template_type_parameter
DST_template_value_parameter
DST_typedef
DST_unspecified_parameters
DST_var_comm
DST_var_const
DST_var_decl
DST_var_def
DST_var_memdef
DST_variable
dtype_t
du
dump_flags_entry
DUMPDEP
DopeVector::DvDimen
Dwarf_Block
Dwarf_Frame_Op
Dwarf_Loc
Dwarf_Locdesc
Dwarf_Macro_Details_s
Dwarf_Regtable
Dwarf_Relocation_Data_s
EC_struct
Echoinfo
ECV_struct
edge
EDGE_ID
EDGE_TYPE
ELF32
Elf32_auxv_t
Elf32_Dyn
Elf32_Ehdr
Elf32_gptab
Elf32_Lib
Elf32_Obj_Info
Elf32_Phdr
Elf32_RegInfo
Elf32_Rel
Elf32_Rela
Elf32_Shdr
Elf32_Sym
Elf32_Verdaux
Elf32_Verdef
Elf32_Vernaux
Elf32_Verneed
ELF64
Elf64_auxv_t
Elf64_Dyn
Elf64_Ehdr
Elf64_Lib
Elf64_Obj_Info
Elf64_Phdr
Elf64_RegInfo
Elf64_Rel
Elf64_Rela
Elf64_Shdr
Elf64_Sym
Elf_IA64_RegInfo
Elf_Ifd
Elf_Options
Elf_Options_Hw
enter_fld
enter_st
ir_a2b::enum2str_tbl_entry_t
EnumToStr_t
eqstr
STR_TAB< STR >::EqStringHashKey
Equal_obj
equiv_tbl_entry
ERROR_DESC
error_desc_table
EVENT_T
exp_tbl_entry
expr
expr_semantics_args
ext_dope_entry
STR_TAB< STR >::ExtractStringBufferFromStringTable
f90_type
FB_CFG
FB_CFG_MEM
FB_EDGE_DELAYED
Fb_File_Info
FB_FREQ
Fb_Hdr
FB_header
FB_Info_Branch
FB_Info_Call
FB_Info_Circuit
FB_Info_Invoke
FB_Info_Loop
FB_Info_Switch
FB_NODE
fb_per_bb
fb_per_call
fb_per_proc
FB_sec_header
fcd_t
FEEDBACK
ff_ialloc_struct
ffc_baddata_s
ffc_chkev_s
ffc_chktp_s
ffc_gettp_s
ffc_info_s
ffc_stat_s
fflistreq
ffp_abs
ffp_settp_s
ffp_skipf_s
ffp_skiptpmk_s
ffp_tapepos
ffsw
FIELD_ITEM
file_info
FILE_INFO
file_path_tbl_entry
finalize_inito
find_inito_predicate
find_st_attr_secname
fiostate
IPO_SYMTAB::fix_base< T >
IPO_SYMTAB::fix_table_entry< T >
ir_a2b::flag2str_tbl_entry_t
ir_a2b::flag_key_t
FlagToStr_t
FLD
FLD_det
FLD_HANDLE
Fld_Path_Info
flist_flags
fmt_entry
fmtchk
fiostate::iostate::fmtstate
FNAME
Fname_PartialMap
stlCompatibility::HashTable< Key, Value, KeyHash, KeyEq >::ForAllAction
formal_info
FP
fpc_csr
fpc_irr
fpu_instr
Full_Events
full_rlc
getpname
getvnode
gfptr_t
global_attr_tbl_entry
global_bounds_tbl_entry
global_line_tbl_entry
global_name_tbl_entry
global_type_tbl_entry
GNAME
GOTO_DESCRIPTOR
GOTO_TABLE
GOTO_WN_PARENT
graph
growing_table
stlCompatibility::Hash< _Key >
stlCompatibility::Hash< char * >
stlCompatibility::Hash< char >
stlCompatibility::Hash< const char * >
stlCompatibility::Hash< int >
stlCompatibility::Hash< long >
stlCompatibility::Hash< short >
stlCompatibility::Hash< signed char >
stlCompatibility::Hash< unsigned char >
stlCompatibility::Hash< unsigned int >
stlCompatibility::Hash< unsigned long >
stlCompatibility::Hash< unsigned short >
IPO_ADDR_HASH::hash_node
hash_pointee_key
HASH_STRUCT
STR_TAB< STR >::HashStringHashKey
stlCompatibility::HashTable< Key, Value, KeyHash, KeyEq >
haz_desc
i64_union
ID_MAP< NODE_TYPE, KEY_TYPE >
ID_MAP_HASH_ENTRY< NODE_TYPE, KEY_TYPE >
id_str_entry
Id_tbl
Idx_Pair
ieee_real_16
ieee_real_4
ieee_real_8
impdo_info
INCL
index_to_buffer_map_entry
InfoFlags
INITO
INITV
inlist
Inpinfo
input_file
inquire_spec_list
INSTRUCTION_GROUP
int_dope_entry
INT_IDS
int_list
intopc
intrin_map_entry
intrin_tbl_entry
DaVinci::IO
ioarray_entry
ioarray_entry_type
ioentry_header
ioentry_header_type
ioimplieddo_entry
iolist_header
iolist_header_type
ioscalar_entry
fiostate::iostate
IPA_LNO_READ_FILE
IPA_LNO_SUMMARY_FORMAL
IPA_LNO_SUMMARY_GLOBAL
IPA_LNO_SUMMARY_PROCEDURE
IPA_LNO_WRITE_FILE
IPAA_CALLSITE
IPAA_CALLSITES
IPAA_FILE_DESCRIPTOR
IPAA_LOCAL_MAP
IPAA_MODREF
IPAA_PU_INFO
IPAA_SECTION
IPAA_SET
IPAA_SUMMARY
IPAA_SYMBOL_REF
IPAA_TABLE_DESCRIPTOR
IPO_ADDR_HASH
IPO_CLONE
IPO_SYMTAB
ir_list_link_entry
ir_list_tbl_entry
IR_OPCODE_TABLE
ir_opr_entry
ir_tbl_entry
is_return_address
is_slink_sym
isa_adj_type
isa_args_type
isa_bundle_type
isa_exec_unit_type
isa_hazard
isa_pack_type
isa_print_type
isa_property
isa_register_class
isa_register_set
isa_register_subclass
isa_subset
ISLOT
itab_entry
IVAR
keydesc
keypart
kwd_entry
la_entry
LABEL
LABEL_DESCRIPTOR
FB_CFG::LABEL_IDX_ss_compare
LABEL_TABLE
last_msg_queue_entry
LATENCY_INFO
ldquad
ldu
LIMIT_STRUCT
LINEX
list_info
lit_range
lnk_lst
lnk_lst_ary
lno_flags
LOC_INFO
Local_Preg
LOOP_SYMBOL
loop_tbl_entry
LOOPINFO
lst_itm
ltstr
MANGLED_FUNC
map2unique
marked_set
match_inito_by_st
matches_pu_ty_and_name
mdfile
mdrule
mem_block
mem_large_block
mem_pool
mem_pool_blocks
mem_pure_stack
mem_stat
mempool_allocator< T >
mempool_allocator< void >
Menu_info
MENU_INFO
mfmc_arc
mfmc_handle
mfmc_layer
mfmc_node
mfmc_stats
MHD
MHD_LEVEL
mips_instruction
mit_descriptor_entry
mit_header_entry
mit_inside_entry
mod_link_tbl_entry
mod_struct
msg_entry
msg_num_entry
msg_queue_entry
MtypeToStr_t
name_pool_entry
name_tbl_entry
Namelist
nested_do
never_visited< TREE >
new_const_tbl_entry
Nlentry
nlist
nmlist_goli
nmlist_group
nmlist_group_hdr
nmlist_scalar
nmlist_struclist
NODE_TYPE
NULL_TERMINATED_STRING
NUM_ST_REFS
o64quad
o_gr_exp
obj_list
obj_type
odesc_aux
OFFSET_AND_SIZE
ogroup_aux
old_const_tbl_entry
old_ir_opr_entry
old_ir_tbl_entry
old_mit_inside_entry
olist
on_off_flags_entry
op_assembly
op_haz
op_pr
Opc2Cname_Map
open_spec_list
operand_use_type
operand_value_type
operands_group
OPERATOR_info_struct
opnd_adj_type
opnd_entry
Opr2handler
opt_flags_entry
opt_table_s
option_desc
option_group
option_list
OPTIONS_STACK
optval
output_file
OVERHEAD
pad_global_arrays
Pair_Cmp
parmlist
parse_block
parse_info_s
Partial_Op
PDESC
pdg_link_tbl_entry
pdt_tbl_hdr_entry
pf_pointer
PHASE_SPECIFIC_OPTION_GROUP
PLATFORM_OPTIONS
PLOC
points_to_ref
postorder_iter< GRAPH, ITERATOR, VISITED >
postorder_tree_iter< TREE, ITERATOR >
pragma_mapped_ids
pragma_stack_type
pred_edge_iter< DIGRAPH >
pred_node_iter< DIGRAPH >
PREG
PREG_det
Preg_Info
Preg_Range
PREG_TABLE
preorder_iter< GRAPH, ITERATOR, VISITED >
preorder_tree_iter< TREE, ITERATOR >
Print_INITV_fnctr
print_op< T >
proc_info
proc_property
PROJECTED_KERNEL
PROJECTED_NODE
PROJECTED_REGION
PROJECTED_REGION_INFO
IPO_SYMTAB::promote_entry< T >
promp_flags
prq
pseudo_op
PSTRUCT
ptr_hash< X >
PU
Pu_Hdr
pu_info
pu_info_iter
PU_Profile_Handle
purple_flags
qcomplex
QUAD
QUAD_REPRESENTATION
QUAD_TYPE
quadword
RBI
mempool_allocator< T >::rebind< U >
mempool_allocator< void >::rebind< U >
record
REGION_ARRAYS
region_cs_iter
region_flags_struct
region_flags_union
region_id
RELATED_SEGMENTED_ARRAY< T, block_size >
rename_only_entry
RENAMING_SCOPE
renamings
repdata
RES
RES_REQ
RES_WORD
Reserved_Name_Set
RESHAPED_DIM
resources
RETURN_INFO
RETURN_PREG
ReturnSite
rstate
save_env_entry
SAVED_SCOPE
SCALAR_C_NAME
SCALAR_INFO
SCOPE
SCOPE_CONTEXT
SCOPE_TAB_INITO_ACCESS
SCOPE_TAB_SYMTAB_ACCESS
scp_tbl_entry
scp_wd_entry
sec_name_tbl_entry
SECTION
section
section_info
SEGMENTED_ARRAY< T, block_size >
SEGMENTED_ARRAY_ITERATOR< SA_Ptr, T, SA_vt_Ptr, SA_vt_Ref >
set_derived_ty_based_on_st
Set_Of_Pragmas_To_Skip
SEVERITY_DESCRIPTOR
SF_SEG_DESC
sh_tbl_entry
SI
SI_BAD_II_SET
SI_ISSUE_SLOT
SI_RESOURCE
SI_RESOURCE_TOTAL
sigcontext
size_offset_entry
skiplist
SLIST
SLIST_ITER
SLIST_NODE
SORTED_MAP< KEY, RANGE >
source_position
src_stk_entry
srcpos_struct
ST
ST_ATTR
ST_ATTR_TABLE
state
stk_entry_t
stmt_tmp_entry
STMT_WN
STMT_WN_BASE
stor_blk_tbl_entry
STR_IDX_MAP::STR_IDX_compare
STR_IDX_MAP
str_list
STR_TAB< STR >
strideloop
STRING_ITER
STRING_LIST
STRING_NODE
STRING_TABLE
String_Value
STR_TAB< STR >::StringHashKey
subprogram_interface
succ_edge_iter< DIGRAPH >
succ_node_iter< DIGRAPH >
SYMTAB_HEADER
SYMTAB_HEADER_TABLE< table_size >
IPAA_SUMMARY::TABLE
TABLE_INDEXED_BY_LEVEL8_AND_INDEX24< ENTRY_TYPE, INDEX_TYPE, LEVEL_INDEX_TYPE, LEVEL_CONTAINER_TYPE, level_container_ptr, LEVEL_MEMBER_ACCESSOR >
table_s
target_machine_entry
TCON
TERM
ti_bundle
ti_res_count
ti_res_res
time_info
TLOG_INFO
TmpVarInfo
tok_list_s
Token
TOKEN
Token_Buffer
token_entry
Token_Sequence
Token_Value
TOP_SCHED_INFO_MAP
tpdef
TY
TY2C_Fld_Info
Ty2c_List
Ty2c_List_Block
ty_dst
TY_EQUIV
TY_hash
TY_shared
type_desc
type_descriptor
type_information_packet
type_pair_t
TYPE_TABLE
type_tbl_entry
type_trans
u
UINT32_unaligned
UINT64_unaligned
UNALIGN_INT32
fiostate::iostate::unfstate
unique_name
unit_list
unit_s
Unparse_Target
Unparse_Target_C
Unparse_Target_FTN
unw_sigaltstack
update_pointer_map
v_iter
verify_op< T >
vertex
vstring
W2CF_SKIP_ITEM
W2CF_Stringbuf
W2CF_Symbol
W2CF_Symhdr
W2CF_Symtab
W2CF_Symtab_Stack
W2CF_TRANSLATOR
W2FC_FLAG_ARRAY
W_node
winfo
WN
WN2F_Context
WN2F_emit_commons
WN2F_Opr_Handler
wn_iter
wn_map_tab
wn_pragma_desc
wn_stack
WN_Verifier
write_st
WRITE_TABLE_OP< T >
xlate_block_s
xlate_blockheader32_v2_s
xlate_blockheader64_v2_s
xlate_blockheader_v1_s
xlate_header32_v2_s
xlate_header64_v2_s
xlate_header_v1_s
xlate_reg_instr2_s
xlate_reg_instr_s