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authorMagnus Lång <[email protected]>2017-02-27 15:29:35 +0100
committerMagnus Lång <[email protected]>2017-03-06 18:18:24 +0100
commit6f43edb0cb7542bb218c5af9f86807723aff0747 (patch)
tree3c3d80750842bf6c0b8e91c0dcbfbab957a6f24d /lib/hipe/x86
parente9ce1714c649f32a8b52e33cf231388c8f2c1899 (diff)
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hipe_x86_assemble: 32-bit forms for movzx and xor-self
Diffstat (limited to 'lib/hipe/x86')
-rw-r--r--lib/hipe/x86/hipe_x86_assemble.erl29
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) ->