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| author | Magnus Lång <[email protected]> | 2017-02-27 15:29:35 +0100 |
|---|---|---|
| committer | Magnus Lång <[email protected]> | 2017-03-06 18:18:24 +0100 |
| commit | 6f43edb0cb7542bb218c5af9f86807723aff0747 (patch) | |
| tree | 3c3d80750842bf6c0b8e91c0dcbfbab957a6f24d /lib/hipe | |
| parent | e9ce1714c649f32a8b52e33cf231388c8f2c1899 (diff) | |
| download | otp-6f43edb0cb7542bb218c5af9f86807723aff0747.tar.gz otp-6f43edb0cb7542bb218c5af9f86807723aff0747.tar.bz2 otp-6f43edb0cb7542bb218c5af9f86807723aff0747.zip | |
hipe_x86_assemble: 32-bit forms for movzx and xor-self
Diffstat (limited to 'lib/hipe')
| -rw-r--r-- | lib/hipe/x86/hipe_x86_assemble.erl | 29 |
1 files changed, 15 insertions, 14 deletions
diff --git a/lib/hipe/x86/hipe_x86_assemble.erl b/lib/hipe/x86/hipe_x86_assemble.erl index ef9c32ef41..fb0beba293 100644 --- a/lib/hipe/x86/hipe_x86_assemble.erl +++ b/lib/hipe/x86/hipe_x86_assemble.erl @@ -148,6 +148,8 @@ insn_size(I) -> translate_insn(I, Context, Options) -> case I of + #alu{aluop='xor', src=#x86_temp{reg=Reg}=Src, dst=#x86_temp{reg=Reg}=Dst} -> + [{'xor', {temp_to_reg32(Dst), temp_to_rm32(Src)}, I}]; #alu{} -> Arg = resolve_alu_args(hipe_x86:alu_src(I), hipe_x86:alu_dst(I), Context), [{hipe_x86:alu_op(I), Arg, I}]; @@ -228,11 +230,11 @@ translate_insn(I, Context, Options) -> #move64{} -> translate_move64(I, Context); #movsx{} -> - Arg = resolve_movx_args(hipe_x86:movsx_src(I), hipe_x86:movsx_dst(I)), - [{movsx, Arg, I}]; + Src = resolve_movx_src(hipe_x86:movsx_src(I)), + [{movsx, {temp_to_regArch(hipe_x86:movsx_dst(I)), Src}, I}]; #movzx{} -> - Arg = resolve_movx_args(hipe_x86:movzx_src(I), hipe_x86:movzx_dst(I)), - [{movzx, Arg, I}]; + Src = resolve_movx_src(hipe_x86:movzx_src(I)), + [{movzx, {temp_to_reg32(hipe_x86:movzx_dst(I)), Src}, I}]; %% pseudo_call: eliminated before assembly %% pseudo_jcc: eliminated before assembly %% pseudo_tailcall: eliminated before assembly @@ -845,16 +847,15 @@ translate_move64(I, _Context) -> exit({?MODULE, I}). -endif. %%% mov{s,z}x -resolve_movx_args(Src=#x86_mem{type=Type}, Dst=#x86_temp{}) -> - {temp_to_regArch(Dst), - case Type of - byte -> - mem_to_rm8(Src); - int16 -> - mem_to_rm16(Src); - int32 -> - mem_to_rm32(Src) - end}. +resolve_movx_src(Src=#x86_mem{type=Type}) -> + case Type of + byte -> + mem_to_rm8(Src); + int16 -> + mem_to_rm16(Src); + int32 -> + mem_to_rm32(Src) + end. %%% alu/cmp (_not_ test) resolve_alu_args(Src, Dst, Context) -> |