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author | Sverker Eriksson <[email protected]> | 2017-03-09 12:20:24 +0100 |
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committer | GitHub <[email protected]> | 2017-03-09 12:20:24 +0100 |
commit | 0380cf2f9d834eb2c84b5f9c6912396c80806b43 (patch) | |
tree | e79efd73bd600ec8d2fa485a618970b3ad649dd5 /lib/hipe/x86/hipe_x86_assemble.erl | |
parent | fcd9a09dc614d61a3e06953837e3bdc3c311710d (diff) | |
parent | 16500d689aab70017d6e6c532aef69c94b1b132a (diff) | |
download | otp-0380cf2f9d834eb2c84b5f9c6912396c80806b43.tar.gz otp-0380cf2f9d834eb2c84b5f9c6912396c80806b43.tar.bz2 otp-0380cf2f9d834eb2c84b5f9c6912396c80806b43.zip |
Merge PR-1360 from margnus1/hipe-codegen/OTP-14261
HiPE: Various small code cleanups and codegen improvements
Diffstat (limited to 'lib/hipe/x86/hipe_x86_assemble.erl')
-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) -> |