From 59433fce199cf65fdbde72e419adae159ef72935 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B6rn=20Gustavsson?= Date: Mon, 26 Jun 2017 11:52:12 +0200 Subject: ops.tab: Use combined operands --- erts/emulator/beam/ops.tab | 46 ++++++++++++++-------------------------------- 1 file changed, 14 insertions(+), 32 deletions(-) diff --git a/erts/emulator/beam/ops.tab b/erts/emulator/beam/ops.tab index 44613c7d85..8d13b9073e 100644 --- a/erts/emulator/beam/ops.tab +++ b/erts/emulator/beam/ops.tab @@ -160,26 +160,19 @@ is_tuple Fail=f S | select_tuple_arity S=d Fail=f Size=u Rest=* => \ select_tuple_arity S=d Fail=f Size=u Rest=* => \ gen_select_tuple_arity(S, Fail, Size, Rest) -i_select_val_bins x f I -i_select_val_bins y f I +i_select_val_bins xy f I -i_select_val_lins x f I -i_select_val_lins y f I +i_select_val_lins xy f I -i_select_val2 x f c c f f -i_select_val2 y f c c f f +i_select_val2 xy f c c f f -i_select_tuple_arity x f I -i_select_tuple_arity y f I +i_select_tuple_arity xy f I -i_select_tuple_arity2 x f A A f f -i_select_tuple_arity2 y f A A f f +i_select_tuple_arity2 xy f A A f f -i_jump_on_val_zero x f I -i_jump_on_val_zero y f I +i_jump_on_val_zero xy f I -i_jump_on_val x f I I -i_jump_on_val y f I I +i_jump_on_val xy f I I %macro: get_list GetList -pack get_list xy xy xy @@ -448,19 +441,14 @@ is_ne_exact Lbl R=xy C=ian => i_is_ne_exact_immed Lbl R C is_ne_exact Lbl R=xy C=q => i_is_ne_exact_literal Lbl R C %macro: i_is_eq_exact_immed EqualImmed -fail_action -i_is_eq_exact_immed f r c -i_is_eq_exact_immed f x c -i_is_eq_exact_immed f y c -i_is_eq_exact_literal f x c -i_is_eq_exact_literal f y c +i_is_eq_exact_immed f rxy c +i_is_eq_exact_literal f xy c %macro: i_is_ne_exact_immed NotEqualImmed -fail_action -i_is_ne_exact_immed f x c -i_is_ne_exact_immed f y c +i_is_ne_exact_immed f xy c -i_is_ne_exact_literal f x c -i_is_ne_exact_literal f y c +i_is_ne_exact_literal f xy c is_eq_exact Lbl Y=y X=x => is_eq_exact Lbl X Y %macro: is_eq_exact EqualExact -fail_action -pack @@ -508,8 +496,7 @@ i_put_tuple Dst Arity Puts=* | put S => \ i_put_tuple/2 %macro:i_put_tuple PutTuple -pack -goto:do_put_tuple -i_put_tuple x I -i_put_tuple y I +i_put_tuple xy I # # The instruction "put_list Const [] Dst" were generated in rare @@ -578,17 +565,12 @@ return_trace move S x==0 | return => move_return S %macro: move_return MoveReturn -nonext -move_return x -move_return c -move_return n +move_return xcn move S x==0 | deallocate D | return => move_deallocate_return S D %macro: move_deallocate_return MoveDeallocateReturn -pack -nonext -move_deallocate_return x Q -move_deallocate_return y Q -move_deallocate_return c Q -move_deallocate_return n Q +move_deallocate_return xycn Q deallocate D | return => deallocate_return D -- cgit v1.2.3 From a5848c2c1eff90e7310627ec3d164db37c5e712a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B6rn=20Gustavsson?= Date: Mon, 26 Jun 2017 13:32:21 +0200 Subject: Reduce C code size for bit syntax instructions Bit syntax instructions never store their result in a Y register. Therefore, change the bit syntax instructions to use 'x' as the destination instead of 'd'. That will simplify the code that stores the result, and will be a slight reduction in code size and execution time. --- erts/emulator/beam/beam_emu.c | 103 ++++++++++++++++++++++++------------------ erts/emulator/beam/ops.tab | 48 ++++++++++---------- 2 files changed, 83 insertions(+), 68 deletions(-) diff --git a/erts/emulator/beam/beam_emu.c b/erts/emulator/beam/beam_emu.c index 79d751d13e..e49a408af8 100644 --- a/erts/emulator/beam/beam_emu.c +++ b/erts/emulator/beam/beam_emu.c @@ -3768,33 +3768,33 @@ do { \ Uint alloc; Uint num_bytes; - OpCase(i_bs_init_bits_heap_IIId): { + OpCase(i_bs_init_bits_heap_IIIx): { num_bits = Arg(0); alloc = Arg(1); I++; goto do_bs_init_bits_known; } - OpCase(i_bs_init_bits_IId): { + OpCase(i_bs_init_bits_IIx): { num_bits = Arg(0); alloc = 0; goto do_bs_init_bits_known; } - OpCase(i_bs_init_bits_fail_heap_sIjId): { + OpCase(i_bs_init_bits_fail_heap_sIjIx): { GetArg1(0, num_bits_term); alloc = Arg(1); I += 2; goto do_bs_init_bits; } - OpCase(i_bs_init_bits_fail_yjId): { + OpCase(i_bs_init_bits_fail_yjIx): { num_bits_term = yb(Arg(0)); I++; alloc = 0; goto do_bs_init_bits; } - OpCase(i_bs_init_bits_fail_xjId): { + OpCase(i_bs_init_bits_fail_xjIx): { num_bits_term = xb(Arg(0)); I++; alloc = 0; @@ -3873,7 +3873,8 @@ do { \ new_binary = make_binary(sb); } HEAP_SPACE_VERIFIED(0); - StoreBifResult(2, new_binary); + xb(Arg(2)) = new_binary; + Next(3); } else { Binary* bptr; ProcBin* pb; @@ -3908,21 +3909,21 @@ do { \ { Eterm BsOp1, BsOp2; - OpCase(i_bs_init_fail_heap_sIjId): { + OpCase(i_bs_init_fail_heap_sIjIx): { GetArg1(0, BsOp1); BsOp2 = Arg(1); I += 2; goto do_bs_init; } - OpCase(i_bs_init_fail_yjId): { + OpCase(i_bs_init_fail_yjIx): { BsOp1 = yb(Arg(0)); BsOp2 = 0; I++; goto do_bs_init; } - OpCase(i_bs_init_fail_xjId): { + OpCase(i_bs_init_fail_xjIx): { BsOp1 = xb(Arg(0)); BsOp2 = 0; I++; @@ -3954,14 +3955,14 @@ do { \ } - OpCase(i_bs_init_heap_IIId): { + OpCase(i_bs_init_heap_IIIx): { BsOp1 = Arg(0); BsOp2 = Arg(1); I++; goto do_proc_bin_alloc; } - OpCase(i_bs_init_IId): { + OpCase(i_bs_init_IIx): { BsOp1 = Arg(0); BsOp2 = 0; } @@ -3996,17 +3997,18 @@ do { \ OH_OVERHEAD(&(MSO(c_p)), BsOp1 / sizeof(Eterm)); - StoreBifResult(2, make_binary(pb)); + xb(Arg(2)) = make_binary(pb); + Next(3); } - OpCase(i_bs_init_heap_bin_heap_IIId): { + OpCase(i_bs_init_heap_bin_heap_IIIx): { BsOp1 = Arg(0); BsOp2 = Arg(1); I++; goto do_heap_bin_alloc; } - OpCase(i_bs_init_heap_bin_IId): { + OpCase(i_bs_init_heap_bin_IIx): { BsOp1 = Arg(0); BsOp2 = 0; } @@ -4026,11 +4028,12 @@ do { \ hb->size = BsOp1; erts_current_bin = (byte *) hb->data; BsOp1 = make_binary(hb); - StoreBifResult(2, BsOp1); + xb(Arg(2)) = BsOp1; + Next(3); } } - OpCase(bs_add_jssId): { + OpCase(bs_add_jssIx): { Eterm Op1, Op2; Uint Unit = Arg(3); @@ -4060,7 +4063,8 @@ do { \ Op1 = erts_make_integer(Op1, c_p); HTOP = HEAP_TOP(c_p); } - StoreBifResult(4, Op1); + xb(Arg(4)) = Op1; + Next(5); } goto badarg; } else { @@ -4129,7 +4133,7 @@ do { \ * Operands: Fail ExtraHeap Live Unit Size Dst */ - OpCase(i_bs_append_jIIIsd): { + OpCase(i_bs_append_jIIIsx): { Uint live = Arg(2); Uint res; Eterm Size; @@ -4143,13 +4147,14 @@ do { \ /* c_p->freason is already set (may be either BADARG or SYSTEM_LIMIT). */ goto lb_Cl_error; } - StoreBifResult(5, res); + xb(Arg(5)) = res; + Next(6); } /* * Operands: Fail Size Src Unit Dst */ - OpCase(i_bs_private_append_jIssd): { + OpCase(i_bs_private_append_jIssx): { Eterm res; Eterm Size, Src; @@ -4159,7 +4164,8 @@ do { \ /* c_p->freason is already set (may be either BADARG or SYSTEM_LIMIT). */ goto lb_Cl_error; } - StoreBifResult(4, res); + xb(Arg(4)) = res; + Next(5); } OpCase(bs_init_writable): { @@ -4176,7 +4182,7 @@ do { \ * can get away with that because we KNOW that bs_put_utf8 will do * full error checking. */ - OpCase(i_bs_utf8_size_sd): { + OpCase(i_bs_utf8_size_sx): { Eterm arg; Eterm result; @@ -4190,7 +4196,8 @@ do { \ } else { result = make_small(4); } - StoreBifResult(1, result); + xb(Arg(1)) = result; + Next(2); } OpCase(i_bs_put_utf8_js): { @@ -4211,7 +4218,7 @@ do { \ * full error checking. */ - OpCase(i_bs_utf16_size_sd): { + OpCase(i_bs_utf16_size_sx): { Eterm arg; Eterm result = make_small(2); @@ -4219,7 +4226,8 @@ do { \ if (arg >= make_small(0x10000UL)) { result = make_small(4); } - StoreBifResult(1, result); + xb(Arg(1)) = result; + Next(2); } OpCase(bs_put_utf16_jIs): { @@ -4313,7 +4321,7 @@ do { \ *HTOP = HEADER_BIN_MATCHSTATE(slots); HTOP += wordsneeded; HEAP_SPACE_VERIFIED(0); - StoreResult(make_matchstate(dst), Arg(3)); + xb(Arg(3)) = make_matchstate(dst); } } else if (is_binary_header(header)) { Eterm result; @@ -4330,19 +4338,19 @@ do { \ if (is_non_value(result)) { ClauseFail(); } else { - StoreResult(result, Arg(3)); + xb(Arg(3)) = result; } } else { ClauseFail(); } NextPF(4, next); - OpCase(i_bs_start_match2_xfIId): { + OpCase(i_bs_start_match2_xfIIx): { context = xb(Arg(0)); I++; goto do_start_match; } - OpCase(i_bs_start_match2_yfIId): { + OpCase(i_bs_start_match2_yfIIx): { context = yb(Arg(0)); I++; goto do_start_match; @@ -4397,7 +4405,7 @@ do { \ { Eterm bs_get_integer8_context; - OpCase(i_bs_get_integer_8_xfd): { + OpCase(i_bs_get_integer_8_xfx): { ErlBinMatchBuffer *_mb; Eterm _result; bs_get_integer8_context = xb(Arg(0)); @@ -4412,14 +4420,15 @@ do { \ _result = make_small(_mb->base[BYTE_OFFSET(_mb->offset)]); _mb->offset += 8; } - StoreBifResult(1, _result); + xb(Arg(1)) = _result; + Next(2); } } { Eterm bs_get_integer_16_context; - OpCase(i_bs_get_integer_16_xfd): + OpCase(i_bs_get_integer_16_xfx): bs_get_integer_16_context = xb(Arg(0)); I++; @@ -4436,14 +4445,15 @@ do { \ _result = make_small(get_int16(_mb->base+BYTE_OFFSET(_mb->offset))); _mb->offset += 16; } - StoreBifResult(1, _result); + xb(Arg(1)) = _result; + Next(2); } } { Eterm bs_get_integer_32_context; - OpCase(i_bs_get_integer_32_xfId): + OpCase(i_bs_get_integer_32_xfIx): bs_get_integer_32_context = xb(Arg(0)); I++; @@ -4471,7 +4481,8 @@ do { \ HEAP_SPACE_VERIFIED(0); } #endif - StoreBifResult(2, _result); + xb(Arg(2)) = _result; + Next(3); } } @@ -4479,7 +4490,7 @@ do { \ Eterm Ms, Sz; /* Operands: x(Reg) Size Live Fail Flags Dst */ - OpCase(i_bs_get_integer_imm_xIIfId): { + OpCase(i_bs_get_integer_imm_xIIfIx): { Uint wordsneeded; Ms = xb(Arg(0)); Sz = Arg(1); @@ -4491,7 +4502,7 @@ do { \ } /* Operands: x(Reg) Size Fail Flags Dst */ - OpCase(i_bs_get_integer_small_imm_xIfId): { + OpCase(i_bs_get_integer_small_imm_xIfIx): { Ms = xb(Arg(0)); Sz = Arg(1); I += 2; @@ -4516,14 +4527,15 @@ do { \ if (is_non_value(result)) { ClauseFail(); } - StoreBifResult(2, result); + xb(Arg(2)) = result; + Next(3); } } /* * Operands: Fail Live FlagsAndUnit Ms Sz Dst */ - OpCase(i_bs_get_integer_fIIssd): { + OpCase(i_bs_get_integer_fIIssx): { Uint flags; Uint size; Eterm Ms; @@ -4558,14 +4570,15 @@ do { \ if (is_non_value(result)) { ClauseFail(); } - StoreBifResult(5, result); + xb(Arg(5)) = result; + Next(6); } { Eterm get_utf8_context; /* Operands: MatchContext Fail Dst */ - OpCase(i_bs_get_utf8_xfd): { + OpCase(i_bs_get_utf8_xfx): { get_utf8_context = xb(Arg(0)); I++; } @@ -4580,7 +4593,8 @@ do { \ if (is_non_value(result)) { ClauseFail(); } - StoreBifResult(1, result); + xb(Arg(1)) = result; + Next(2); } } @@ -4588,7 +4602,7 @@ do { \ Eterm get_utf16_context; /* Operands: MatchContext Fail Flags Dst */ - OpCase(i_bs_get_utf16_xfId): { + OpCase(i_bs_get_utf16_xfIx): { get_utf16_context = xb(Arg(0)); I++; } @@ -4603,7 +4617,8 @@ do { \ if (is_non_value(result)) { ClauseFail(); } - StoreBifResult(2, result); + xb(Arg(2)) = result; + Next(3); } } diff --git a/erts/emulator/beam/ops.tab b/erts/emulator/beam/ops.tab index 8d13b9073e..4ce86ce949 100644 --- a/erts/emulator/beam/ops.tab +++ b/erts/emulator/beam/ops.tab @@ -1124,7 +1124,7 @@ func_info M F A => i_func_info u M F A %cold bs_start_match2 Fail=f ica X Y D => jump Fail bs_start_match2 Fail Bin X Y D => i_bs_start_match2 Bin Fail X Y D -i_bs_start_match2 xy f I I d +i_bs_start_match2 xy f I I x bs_save2 Reg Index => gen_bs_save(Reg, Index) i_bs_save2 x I @@ -1141,12 +1141,12 @@ i_bs_match_string x f I I bs_get_integer2 Fail=f Ms=x Live=u Sz=sq Unit=u Flags=u Dst=d => \ gen_get_integer2(Fail, Ms, Live, Sz, Unit, Flags, Dst) -i_bs_get_integer_small_imm x I f I d -i_bs_get_integer_imm x I I f I d -i_bs_get_integer f I I s s d -i_bs_get_integer_8 x f d -i_bs_get_integer_16 x f d -i_bs_get_integer_32 x f I d +i_bs_get_integer_small_imm x I f I x +i_bs_get_integer_imm x I I f I x +i_bs_get_integer f I I s s x +i_bs_get_integer_8 x f x +i_bs_get_integer_16 x f x +i_bs_get_integer_32 x f I x # Fetching binaries from binaries. bs_get_binary2 Fail=f Ms=x Live=u Sz=sq Unit=u Flags=u Dst=d => \ @@ -1204,14 +1204,14 @@ bs_context_to_binary x # Utf8/utf16/utf32 support. (R12B-5) # bs_get_utf8 Fail=f Ms=x u u Dst=d => i_bs_get_utf8 Ms Fail Dst -i_bs_get_utf8 x f d +i_bs_get_utf8 x f x bs_skip_utf8 Fail=f Ms=x u u => i_bs_get_utf8 Ms Fail x bs_get_utf16 Fail=f Ms=x u Flags=u Dst=d => i_bs_get_utf16 Ms Fail Flags Dst bs_skip_utf16 Fail=f Ms=x u Flags=u => i_bs_get_utf16 Ms Fail Flags x -i_bs_get_utf16 x f I d +i_bs_get_utf16 x f I x bs_get_utf32 Fail=f Ms=x Live=u Flags=u Dst=d => \ bs_get_integer2 Fail Ms Live i=32 u=1 Flags Dst | \ @@ -1244,15 +1244,15 @@ bs_init2 Fail Sz Words=u==0 Regs Flags Dst => \ bs_init2 Fail Sz Words Regs Flags Dst => \ i_bs_init_fail_heap Sz Words Fail Regs Dst -i_bs_init_fail xy j I d +i_bs_init_fail xy j I x -i_bs_init_fail_heap s I j I d +i_bs_init_fail_heap s I j I x -i_bs_init I I d -i_bs_init_heap_bin I I d +i_bs_init I I x +i_bs_init_heap_bin I I x -i_bs_init_heap I I I d -i_bs_init_heap_bin_heap I I I d +i_bs_init_heap I I I x +i_bs_init_heap_bin_heap I I I x bs_init_bits Fail Sz=o Words Regs Flags Dst => system_limit Fail @@ -1265,16 +1265,16 @@ bs_init_bits Fail Sz Words=u==0 Regs Flags Dst => \ bs_init_bits Fail Sz Words Regs Flags Dst => \ i_bs_init_bits_fail_heap Sz Words Fail Regs Dst -i_bs_init_bits_fail xy j I d +i_bs_init_bits_fail xy j I x -i_bs_init_bits_fail_heap s I j I d +i_bs_init_bits_fail_heap s I j I x -i_bs_init_bits I I d -i_bs_init_bits_heap I I I d +i_bs_init_bits I I x +i_bs_init_bits_heap I I I x bs_add Fail S1=i==0 S2 Unit=u==1 D => move S2 D -bs_add j s s I d +bs_add j s s I x bs_append Fail Size Extra Live Unit Bin Flags Dst => \ move Bin x | i_bs_append Fail Extra Live Unit Size Dst @@ -1284,8 +1284,8 @@ bs_private_append Fail Size Unit Bin Flags Dst => \ bs_init_writable -i_bs_append j I I I s d -i_bs_private_append j I s s d +i_bs_append j I I I s x +i_bs_private_append j I s s x # # Storing integers into binaries. @@ -1306,11 +1306,11 @@ i_new_bs_put_integer_imm j I I s bs_utf8_size j Src=s Dst=d => i_bs_utf8_size Src Dst -i_bs_utf8_size s d +i_bs_utf8_size s x bs_utf16_size j Src=s Dst=d => i_bs_utf16_size Src Dst -i_bs_utf16_size s d +i_bs_utf16_size s x bs_put_utf8 Fail u Src=s => i_bs_put_utf8 Fail Src -- cgit v1.2.3