diff options
Diffstat (limited to 'lib/hipe/llvm')
| -rw-r--r-- | lib/hipe/llvm/hipe_llvm.erl | 52 | ||||
| -rw-r--r-- | lib/hipe/llvm/hipe_rtl_to_llvm.erl | 22 |
2 files changed, 48 insertions, 26 deletions
diff --git a/lib/hipe/llvm/hipe_llvm.erl b/lib/hipe/llvm/hipe_llvm.erl index c2547dd89e..b22f8fb320 100644 --- a/lib/hipe/llvm/hipe_llvm.erl +++ b/lib/hipe/llvm/hipe_llvm.erl @@ -199,10 +199,9 @@ adj_stack_register/1, adj_stack_type/1, - mk_branch_meta/3, - branch_meta_id/1, - branch_meta_true_weight/1, - branch_meta_false_weight/1 + mk_meta/2, + meta_id/1, + meta_operands/1 ]). -export([ @@ -343,8 +342,9 @@ -record(llvm_adj_stack, {offset, 'register', type}). -type llvm_adj_stack() :: #llvm_adj_stack{}. --record(llvm_branch_meta, {id, true_weight, false_weight}). --type llvm_branch_meta() :: #llvm_branch_meta{}. +-record(llvm_meta, {id :: string(), + operands :: [string() | integer() | llvm_meta()]}). +-type llvm_meta() :: #llvm_meta{}. %% A type for any LLVM instruction -type llvm_instr() :: llvm_ret() | llvm_br() | llvm_br_cond() @@ -357,7 +357,7 @@ | llvm_call() | llvm_fun_def() | llvm_fun_decl() | llvm_landingpad() | llvm_comment() | llvm_label() | llvm_const_decl() | llvm_asm() | llvm_adj_stack() - | llvm_branch_meta(). + | llvm_meta(). %% Types -record(llvm_void, {}). @@ -701,7 +701,7 @@ is_label(#llvm_comment{}) -> false; is_label(#llvm_const_decl{}) -> false; is_label(#llvm_asm{}) -> false; is_label(#llvm_adj_stack{}) -> false; -is_label(#llvm_branch_meta{}) -> false. +is_label(#llvm_meta{}) -> false. %% const_decl mk_const_decl(Dst, Decl_type, Type, Value) -> @@ -722,14 +722,11 @@ adj_stack_offset(#llvm_adj_stack{offset=Offset}) -> Offset. adj_stack_register(#llvm_adj_stack{'register'=Register}) -> Register. adj_stack_type(#llvm_adj_stack{type=Type}) -> Type. -%% branch meta-data -mk_branch_meta(Id, True_weight, False_weight) -> - #llvm_branch_meta{id=Id, true_weight=True_weight, false_weight=False_weight}. -branch_meta_id(#llvm_branch_meta{id=Id}) -> Id. -branch_meta_true_weight(#llvm_branch_meta{true_weight=True_weight}) -> - True_weight. -branch_meta_false_weight(#llvm_branch_meta{false_weight=False_weight}) -> - False_weight. +%% meta-data +mk_meta(Id, Operands) -> + #llvm_meta{id=Id, operands=Operands}. +meta_id(#llvm_meta{id=Id}) -> Id. +meta_operands(#llvm_meta{operands=Operands}) -> Operands. %% types mk_void() -> #llvm_void{}. @@ -1013,13 +1010,22 @@ pp_ins(Dev, Ver, I) -> adj_stack_register(I), "\", \"r\"("]), pp_type(Dev, adj_stack_type(I)), write(Dev, [" ", adj_stack_offset(I),")\n"]); - #llvm_branch_meta{} -> - write(Dev, ["!", branch_meta_id(I), " = "]), - if Ver < {3,6} -> write(Dev, "metadata !{metadata "); - Ver >= {3,6} -> write(Dev, "!{ ") + #llvm_meta{} -> + write(Dev, ["!", meta_id(I), " = "]), + Named = case string:to_integer(meta_id(I)) of + {_, ""} -> false; + _ -> true + end, + case Ver < {3,6} andalso not Named of + true -> write(Dev, "metadata !{metadata "); + false -> write(Dev, "!{ ") end, - write(Dev, ["!\"branch_weights\", i32 ", branch_meta_true_weight(I), - ", i32 ", branch_meta_false_weight(I), "}\n"]); + write(Dev, string:join([if is_list(Op) -> ["!\"", Op, "\""]; + is_integer(Op) -> ["i32 ", integer_to_list(Op)]; + is_record(Op, llvm_meta) -> + ["!", meta_id(Op)] + end || Op <- meta_operands(I)], ", ")), + write(Dev, " }\n"); Other -> exit({?MODULE, pp_ins, {"Unknown LLVM instruction", Other}}) end. @@ -1140,7 +1146,7 @@ indent(I) -> #llvm_fun_def{} -> false; #llvm_fun_decl{} -> false; #llvm_const_decl{} -> false; - #llvm_branch_meta{} -> false; + #llvm_meta{} -> false; _ -> true end. diff --git a/lib/hipe/llvm/hipe_rtl_to_llvm.erl b/lib/hipe/llvm/hipe_rtl_to_llvm.erl index b23d756d6c..66b2e10fb8 100644 --- a/lib/hipe/llvm/hipe_rtl_to_llvm.erl +++ b/lib/hipe/llvm/hipe_rtl_to_llvm.erl @@ -13,6 +13,8 @@ -define(WORD_WIDTH, (?bytes_to_bits(hipe_rtl_arch:word_size()))). -define(BRANCH_META_TAKEN, "0"). -define(BRANCH_META_NOT_TAKEN, "1"). +-define(FIRST_FREE_META_NO, 2). +-define(HIPE_LITERALS_META, "hipe.literals"). %%------------------------------------------------------------------------------ %% @doc Main function for translating an RTL function to LLVM Assembly. Takes as @@ -51,8 +53,9 @@ translate(RTL, Roots) -> translate_instr_list(Code1, [], Relocs, Data), %% Create LLVM code to declare relocation symbols as external symbols along %% with local variables in order to use them as just any other variable - {FinalRelocs, ExternalDecl, LocalVars} = + {FinalRelocs, ExternalDecl0, LocalVars} = handle_relocations(Relocs1, Data, Fun), + ExternalDecl = add_literals_metadata(ExternalDecl0), %% Pass on LLVM code in order to create Fail blocks and a landingpad %% instruction to each one LLVM_Code2 = add_landingpads(LLVM_Code1, FailLabels), @@ -1458,8 +1461,8 @@ handle_relocations(Relocs, Data, Fun) -> Relocs4 = dict:store("hipe_bifs.llvm_fix_pinned_regs.0", {call, {hipe_bifs, llvm_fix_pinned_regs, 0}}, Relocs3), BranchMetaData = [ - hipe_llvm:mk_branch_meta(?BRANCH_META_TAKEN, "99", "1") - , hipe_llvm:mk_branch_meta(?BRANCH_META_NOT_TAKEN, "1", "99") + hipe_llvm:mk_meta(?BRANCH_META_TAKEN, ["branch_weights", 99, 1]) + , hipe_llvm:mk_meta(?BRANCH_META_NOT_TAKEN, ["branch_weights", 1, 99]) ], ExternalDeclarations = AtomDecl ++ ClosureDecl ++ ConstDecl ++ FunDecl ++ ClosureLabelDecl ++ SwitchDecl ++ BranchMetaData, @@ -1612,3 +1615,16 @@ load_constant(Label) -> const_to_dict(Elem, Dict) -> Name = "DL" ++ integer_to_list(Elem), dict:store(Name, {'constant', Elem}, Dict). + +%% @doc Export the hipe literals that LLVM needs to generate the prologue as +%% metadata. +add_literals_metadata(ExternalDecls) -> + Pairs = [hipe_llvm:mk_meta(integer_to_list(?FIRST_FREE_META_NO), + ["P_NSP_LIMIT", ?P_NSP_LIMIT]) + ,hipe_llvm:mk_meta(integer_to_list(?FIRST_FREE_META_NO + 1), + ["X86_LEAF_WORDS", ?X86_LEAF_WORDS]) + ,hipe_llvm:mk_meta(integer_to_list(?FIRST_FREE_META_NO + 2), + ["AMD64_LEAF_WORDS", ?AMD64_LEAF_WORDS]) + ], + [hipe_llvm:mk_meta(?HIPE_LITERALS_META, Pairs) | + Pairs ++ ExternalDecls]. |