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authorMagnus Lång <[email protected]>2016-03-30 18:42:52 +0200
committerMagnus Lång <[email protected]>2016-08-30 17:17:59 +0200
commit7dd26f1dbbb85af96c80a9a2f272150ba52b0a56 (patch)
treea8a2011b287c2e40a7fe87e8689342764511d8c7 /lib/hipe/ppc/hipe_rtl_to_ppc.erl
parent522c00d0fb8157cfe19861f158c6e67e6b67c968 (diff)
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hipe_ppc: Be resilient to crappy RTL
The PowerPC backend crashes if certain RTL optimisations were omitted, preventing it from being usable at lower optimisation levels.
Diffstat (limited to 'lib/hipe/ppc/hipe_rtl_to_ppc.erl')
-rw-r--r--lib/hipe/ppc/hipe_rtl_to_ppc.erl25
1 files changed, 20 insertions, 5 deletions
diff --git a/lib/hipe/ppc/hipe_rtl_to_ppc.erl b/lib/hipe/ppc/hipe_rtl_to_ppc.erl
index a994659616..a01e67a789 100644
--- a/lib/hipe/ppc/hipe_rtl_to_ppc.erl
+++ b/lib/hipe/ppc/hipe_rtl_to_ppc.erl
@@ -1031,7 +1031,7 @@ conv_return(I, Map, Data) ->
{I2, Map0, Data}.
conv_store(I, Map, Data) ->
- {Base1, Map0} = conv_dst(hipe_rtl:store_base(I), Map),
+ {Base1, Map0} = conv_src(hipe_rtl:store_base(I), Map),
{Src, Map1} = conv_src(hipe_rtl:store_src(I), Map0),
{Base2, Map2} = conv_src(hipe_rtl:store_offset(I), Map1),
StoreSize = hipe_rtl:store_size(I),
@@ -1056,13 +1056,28 @@ mk_store(Src, Base1, Base2, StoreSize) ->
end.
mk_store2(Src, Base1, Base2, StOp) ->
- case hipe_ppc:is_temp(Base2) of
+ case hipe_ppc:is_temp(Base1) of
true ->
- mk_store_rr(Src, Base1, Base2, StOp);
+ case hipe_ppc:is_temp(Base2) of
+ true ->
+ mk_store_rr(Src, Base1, Base2, StOp);
+ _ ->
+ mk_store_ri(Src, Base1, Base2, StOp)
+ end;
_ ->
- mk_store_ri(Src, Base1, Base2, StOp)
+ case hipe_ppc:is_temp(Base2) of
+ true ->
+ mk_store_ri(Src, Base2, Base1, StOp);
+ _ ->
+ mk_store_ii(Src, Base1, Base2, StOp)
+ end
end.
-
+
+mk_store_ii(Src, Base, Disp, StOp) ->
+ Tmp = new_untagged_temp(),
+ mk_li(Tmp, Base,
+ mk_store_ri(Src, Tmp, Disp, StOp)).
+
mk_store_ri(Src, Base, Disp, StOp) ->
hipe_ppc:mk_store(StOp, Src, Disp, Base, 'new', []).