diff options
| author | Magnus Lång <[email protected]> | 2016-10-02 13:14:40 +0200 |
|---|---|---|
| committer | Magnus Lång <[email protected]> | 2017-03-02 14:49:14 +0100 |
| commit | 200473bc4874a12485ba0b6c681c3648cb8aa355 (patch) | |
| tree | 04a1fe099040e97755e0e3327e95cad57290abe2 /lib/hipe/rtl | |
| parent | 2117c9e01ed2949b245c8f41c00cac2619a5041a (diff) | |
| download | otp-200473bc4874a12485ba0b6c681c3648cb8aa355.tar.gz otp-200473bc4874a12485ba0b6c681c3648cb8aa355.tar.bz2 otp-200473bc4874a12485ba0b6c681c3648cb8aa355.zip | |
hipe_rtl: Inline more of match eq test
With this change, both the matches and does not match cases have
fastpaths that does not need to call primops.
Diffstat (limited to 'lib/hipe/rtl')
| -rw-r--r-- | lib/hipe/rtl/hipe_icode2rtl.erl | 12 | ||||
| -rw-r--r-- | lib/hipe/rtl/hipe_tagscheme.erl | 16 |
2 files changed, 26 insertions, 2 deletions
diff --git a/lib/hipe/rtl/hipe_icode2rtl.erl b/lib/hipe/rtl/hipe_icode2rtl.erl index 82970f04ab..6da8a76d34 100644 --- a/lib/hipe/rtl/hipe_icode2rtl.erl +++ b/lib/hipe/rtl/hipe_icode2rtl.erl @@ -532,8 +532,12 @@ gen_cond(CondOp, Args, TrueLbl, FalseLbl, Pred) -> FalseLbl, Pred)]; '=:=' -> [Arg1, Arg2] = Args, + TypeTestLbl = hipe_rtl:mk_new_label(), [hipe_rtl:mk_branch(Arg1, eq, Arg2, TrueLbl, - hipe_rtl:label_name(GenLbl), Pred), + hipe_rtl:label_name(TypeTestLbl), Pred), + TypeTestLbl, + hipe_tagscheme:test_either_immed(Arg1, Arg2, FalseLbl, + hipe_rtl:label_name(GenLbl)), GenLbl, hipe_rtl:mk_call([Tmp], op_exact_eqeq_2, Args, TestRetName, [], not_remote), @@ -546,8 +550,12 @@ gen_cond(CondOp, Args, TrueLbl, FalseLbl, Pred) -> TrueLbl, 1-Pred)]; '=/=' -> [Arg1, Arg2] = Args, + TypeTestLbl = hipe_rtl:mk_new_label(), [hipe_rtl:mk_branch(Arg1, eq, Arg2, FalseLbl, - hipe_rtl:label_name(GenLbl), 1-Pred), + hipe_rtl:label_name(TypeTestLbl), 1-Pred), + TypeTestLbl, + hipe_tagscheme:test_either_immed(Arg1, Arg2, TrueLbl, + hipe_rtl:label_name(GenLbl)), GenLbl, hipe_rtl:mk_call([Tmp], op_exact_eqeq_2, Args, TestRetName, [], not_remote), diff --git a/lib/hipe/rtl/hipe_tagscheme.erl b/lib/hipe/rtl/hipe_tagscheme.erl index 35d1e7c8a4..133e36d409 100644 --- a/lib/hipe/rtl/hipe_tagscheme.erl +++ b/lib/hipe/rtl/hipe_tagscheme.erl @@ -40,6 +40,7 @@ fixnum_gt/5, fixnum_lt/5, fixnum_ge/5, fixnum_le/5, fixnum_val/1, fixnum_mul/4, fixnum_addsub/5, fixnum_andorxor/4, fixnum_not/2, fixnum_bsr/3, fixnum_bsl/3]). +-export([test_either_immed/4]). -export([unsafe_car/2, unsafe_cdr/2, unsafe_constant_element/3, unsafe_update_element/3, element/6]). -export([unsafe_closure_element/3]). @@ -595,6 +596,21 @@ fixnum_bsl(Arg1, Arg2, Res) -> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +%% Test if either of two values are immediate (primary tag IMMED1, 0x3) +test_either_immed(Arg1, Arg2, TrueLab, FalseLab) -> + %% This test assumes primary tag 0x0 is reserved and immed has tag 0x3 + 16#0 = ?TAG_PRIMARY_HEADER, + 16#3 = ?TAG_PRIMARY_IMMED1, + Tmp1 = hipe_rtl:mk_new_reg_gcsafe(), + Tmp2 = hipe_rtl:mk_new_reg_gcsafe(), + [hipe_rtl:mk_alu(Tmp1, Arg1, 'sub', hipe_rtl:mk_imm(1)), + hipe_rtl:mk_alu(Tmp2, Arg2, 'sub', hipe_rtl:mk_imm(1)), + hipe_rtl:mk_alu(Tmp2, Tmp2, 'or', Tmp1), + hipe_rtl:mk_branch(Tmp2, 'and', hipe_rtl:mk_imm(2), eq, + FalseLab, TrueLab, 0.01)]. + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% + unsafe_car(Dst, Arg) -> hipe_rtl:mk_load(Dst, Arg, hipe_rtl:mk_imm(-(?TAG_PRIMARY_LIST))). |