diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/hipe/llvm/hipe_llvm_main.erl | 30 | ||||
| -rw-r--r-- | lib/hipe/llvm/hipe_rtl_to_llvm.erl | 9 | ||||
| -rw-r--r-- | lib/hipe/main/hipe.erl | 32 |
3 files changed, 47 insertions, 24 deletions
diff --git a/lib/hipe/llvm/hipe_llvm_main.erl b/lib/hipe/llvm/hipe_llvm_main.erl index e911fb89c9..0e50c9539b 100644 --- a/lib/hipe/llvm/hipe_llvm_main.erl +++ b/lib/hipe/llvm/hipe_llvm_main.erl @@ -342,8 +342,8 @@ create_sdesc_list([{ExnLbl, SPOff} | MoreExnAndSPOffs], %% (thus, some of their arguments are passed to the stack). Because of the %% Reserved Call Frame feature that the LLVM uses, the stack descriptors %% are not correct since at the point of call the frame size is reduced -%% proportionally to the number of arguments that are passed on the stack. -%% Also the offsets of the roots need to be re-adjusted. +%% by the number of arguments that are passed on the stack. Also, the +%% offsets of the roots need to be re-adjusted. fix_stack_descriptors(_, _, [], _) -> []; fix_stack_descriptors(RelocsDict, Relocs, SDescs, ExposedClosures) -> @@ -427,30 +427,22 @@ find_offsets([{Off,Arity}|Rest], Offsets, Acc) -> [I | RestOffsets] = lists:dropwhile(fun (Y) -> Y<Off end, Offsets), find_offsets(Rest, RestOffsets, [{I, Arity}|Acc]). -%% The functions below correct the arity of calls, that are identified -%% by offset, in the stack descriptors. +%% The function below corrects the stack descriptors of calls with arguments +%% that are passed on the stack (more than NR_ARG_REGS) by subtracting the +%% number of stacked arguments from the frame size and from the offset of the +%% roots. fix_sdescs([], SDescs) -> SDescs; fix_sdescs([{Offset, Arity} | Rest], SDescs) -> case lists:keyfind(Offset, 2, SDescs) of false -> fix_sdescs(Rest, SDescs); - {?SDESC, Offset, SDesc} -> - {ExnHandler, FrameSize, StkArity, Roots} = SDesc, - DecRoot = fun(X) -> X-Arity end, - NewRootsList = lists:map(DecRoot, tuple_to_list(Roots)), - NewSDesc = - case length(NewRootsList) > 0 andalso hd(NewRootsList) >= 0 of - true -> - {?SDESC, Offset, {ExnHandler, FrameSize-Arity, StkArity, - list_to_tuple(NewRootsList)}}; - false -> - {?SDESC, Offset, {ExnHandler, FrameSize, StkArity, Roots}} - end, - RestSDescs = lists:keydelete(Offset, 2, SDescs), - fix_sdescs(Rest, [NewSDesc | RestSDescs]) + {?SDESC, Offset, {ExnHandler, FrameSize, StkArity, Roots}} -> + FixedRoots = list_to_tuple([Ri - Arity || Ri <- tuple_to_list(Roots)]), + FixedSDesc = + {?SDESC, Offset, {ExnHandler, FrameSize - Arity, StkArity, FixedRoots}}, + fix_sdescs(Rest, [FixedSDesc | lists:keydelete(Offset, 2, SDescs)]) end. - %%------------------------------------------------------------------------------ %% Miscellaneous functions %%------------------------------------------------------------------------------ diff --git a/lib/hipe/llvm/hipe_rtl_to_llvm.erl b/lib/hipe/llvm/hipe_rtl_to_llvm.erl index ba76e1d815..d7d8d1b049 100644 --- a/lib/hipe/llvm/hipe_rtl_to_llvm.erl +++ b/lib/hipe/llvm/hipe_rtl_to_llvm.erl @@ -430,12 +430,13 @@ trans_call_name(RtlCallName, Relocs, CallArgs, FinalArgs) -> case RtlCallName of PrimOp when is_atom(PrimOp) -> LlvmName = trans_prim_op(PrimOp), - Relocs1 = relocs_store(LlvmName, {call, {bif, PrimOp, length(CallArgs)}}, - Relocs), + Relocs1 = + relocs_store(LlvmName, {call, {bif, PrimOp, length(CallArgs)}}, Relocs), {"@" ++ LlvmName, [], Relocs1}; {M, F, A} when is_atom(M), is_atom(F), is_integer(A) -> - LlvmName = trans_mfa_name({M,F,A}), - Relocs1 = relocs_store(LlvmName, {call, {M,F,A}}, Relocs), + LlvmName = trans_mfa_name({M, F, A}), + Relocs1 = + relocs_store(LlvmName, {call, {M, F, length(CallArgs)}}, Relocs), {"@" ++ LlvmName, [], Relocs1}; Reg -> case hipe_rtl:is_reg(Reg) of diff --git a/lib/hipe/main/hipe.erl b/lib/hipe/main/hipe.erl index d47eced6d8..539ce883c0 100644 --- a/lib/hipe/main/hipe.erl +++ b/lib/hipe/main/hipe.erl @@ -200,6 +200,7 @@ compile_core/4, file/1, file/2, + llvm_support_available/0, load/1, help/0, help_hiper/0, @@ -648,7 +649,18 @@ run_compiler_1(DisasmFun, IcodeFun, Options) -> %% The full option expansion is not done %% until the DisasmFun returns. {Code, CompOpts} = DisasmFun(Options), - Opts = expand_options(Options ++ CompOpts), + Opts0 = expand_options(Options ++ CompOpts), + Opts = + case proplists:get_bool(to_llvm, Opts0) andalso + not llvm_support_available() of + true -> + ?error_msg("No LLVM version 3.4 or greater " + "found in $PATH; aborting " + "native code compilation.\n", []), + ?EXIT(cant_find_required_llvm_version); + false -> + Opts0 + end, check_options(Opts), ?when_option(verbose, Options, ?debug_msg("Options: ~p.\n",[Opts])), @@ -1537,4 +1549,22 @@ check_options(Opts) -> ok end. +-spec llvm_support_available() -> boolean(). + +llvm_support_available() -> + get_llvm_version() >= 3.4. + +get_llvm_version() -> + OptStr = os:cmd("opt -version"), + SubStr = "LLVM version ", N = length(SubStr), + case string:str(OptStr, SubStr) of + 0 -> % No opt available + 0.0; + S -> + case string:to_float(string:sub_string(OptStr, S + N)) of + {error, _} -> 0.0; %XXX: Assumes no revision numbers in versioning + {Float, _} -> Float + end + end. + %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |