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authorHenrik Nord <[email protected]>2014-03-21 16:37:11 +0100
committerHenrik Nord <[email protected]>2014-03-21 16:37:26 +0100
commit9d46875b53ffb21bc55aec4a2c76472133ea5d1c (patch)
tree2e0fa6e8829213470acc239b8885c3a79ced63f0 /lib/hipe/main/hipe_main.erl
parentbbe92ec2c359373205149dabc61ef0d50784760f (diff)
parentb326df0d935d221574abf58d5e2a3efddd020278 (diff)
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Merge branch 'yiannist/hipe-llvm-backend'
* yiannist/hipe-llvm-backend: Support the LLVM backend in HiPE Implement the LLVM backend Extend RTL API to support the LLVM backend Add support for llvm unique symbols in hipe_gensym Add a BIF that only returns the atom ok Move some common code in hipe_pack_constants Add better specs in hipe_pack_constants and cleanup OTP-11801
Diffstat (limited to 'lib/hipe/main/hipe_main.erl')
-rw-r--r--lib/hipe/main/hipe_main.erl42
1 files changed, 35 insertions, 7 deletions
diff --git a/lib/hipe/main/hipe_main.erl b/lib/hipe/main/hipe_main.erl
index 99028cc3c1..89b79998be 100644
--- a/lib/hipe/main/hipe_main.erl
+++ b/lib/hipe/main/hipe_main.erl
@@ -49,7 +49,7 @@
%%=====================================================================
-type comp_icode_ret() :: {'native',hipe_architecture(),{'unprofiled',_}}
- | {'rtl',tuple()}.
+ | {'rtl',tuple()} | {'llvm_binary',term()}.
%%=====================================================================
@@ -115,11 +115,18 @@ compile_icode(MFA, LinearIcode0, Options, Servers, DebugState) ->
pp(IcodeCfg7, MFA, icode_liveness, pp_icode_liveness, Options, Servers),
FinalIcode = hipe_icode_cfg:cfg_to_linear(IcodeCfg7),
?opt_stop_timer("Icode"),
- LinearRTL = ?option_time(icode_to_rtl(MFA,FinalIcode,Options, Servers),
- "RTL", Options),
+ {LinearRTL, Roots} = ?option_time(icode_to_rtl(MFA, FinalIcode, Options, Servers),
+ "RTL", Options),
case proplists:get_bool(to_rtl, Options) of
false ->
- rtl_to_native(MFA, LinearRTL, Options, DebugState);
+ case proplists:get_bool(to_llvm, Options) of
+ false ->
+ rtl_to_native(MFA, LinearRTL, Options, DebugState);
+ true ->
+ %% The LLVM backend returns binary code, unlike the rest of the HiPE
+ %% backends which return native assembly.
+ rtl_to_llvm_to_binary(MFA, LinearRTL, Roots, Options, DebugState)
+ end;
true ->
put(hipe_debug, DebugState),
{rtl, LinearRTL}
@@ -385,11 +392,21 @@ icode_to_rtl(MFA, Icode, Options, Servers) ->
%% hipe_rtl_cfg:pp(RtlCfg3),
pp(RtlCfg3, MFA, rtl_liveness, pp_rtl_liveness, Options, Servers),
RtlCfg4 = rtl_lcm(RtlCfg3, Options),
- pp(RtlCfg4, MFA, rtl, pp_rtl, Options, Servers),
- LinearRTL1 = hipe_rtl_cfg:linearize(RtlCfg4),
+ %% LLVM: A liveness analysis on RTL must be performed in order to find the GC
+ %% roots and explicitly mark them (in RTL) when they go out of scope (only
+ %% when the LLVM backend is used).
+ {RtlCfg5, Roots} =
+ case proplists:get_bool(to_llvm, Options) of
+ false ->
+ {RtlCfg4, []};
+ true ->
+ hipe_llvm_liveness:analyze(RtlCfg4)
+ end,
+ pp(RtlCfg5, MFA, rtl, pp_rtl, Options, Servers),
+ LinearRTL1 = hipe_rtl_cfg:linearize(RtlCfg5),
LinearRTL2 = hipe_rtl_cleanup_const:cleanup(LinearRTL1),
%% hipe_rtl:pp(standard_io, LinearRTL2),
- LinearRTL2.
+ {LinearRTL2, Roots}.
translate_to_rtl(Icode, Options) ->
%% GC tests should have been added in the conversion to Icode.
@@ -540,6 +557,17 @@ rtl_to_native(MFA, LinearRTL, Options, DebugState) ->
put(hipe_debug, DebugState),
LinearNativeCode.
+%% Translate Linear RTL to binary code using LLVM.
+rtl_to_llvm_to_binary(MFA, LinearRTL, Roots, Options, DebugState) ->
+ ?opt_start_timer("LLVM native code"),
+ %% BinaryCode is a tuple, as defined in llvm/hipe_llvm_main module, which
+ %% contains the binary code together with info needed by the loader, e.g.
+ %% ConstTab, Refs, LabelMap, etc.
+ BinaryCode = hipe_llvm_main:rtl_to_native(MFA, LinearRTL, Roots, Options),
+ ?opt_stop_timer("LLVM native code"),
+ put(hipe_debug, DebugState),
+ {llvm_binary, BinaryCode}.
+
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Debugging stuff ...
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%