diff options
Diffstat (limited to 'lib/compiler/test/beam_ssa_SUITE.erl')
| -rw-r--r-- | lib/compiler/test/beam_ssa_SUITE.erl | 79 |
1 files changed, 71 insertions, 8 deletions
diff --git a/lib/compiler/test/beam_ssa_SUITE.erl b/lib/compiler/test/beam_ssa_SUITE.erl index a3de26524f..d1330b78bf 100644 --- a/lib/compiler/test/beam_ssa_SUITE.erl +++ b/lib/compiler/test/beam_ssa_SUITE.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2018-2021. All Rights Reserved. +%% Copyright Ericsson AB 2018-2022. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -25,7 +25,8 @@ cover_ssa_dead/1,combine_sw/1,share_opt/1, beam_ssa_dead_crash/1,stack_init/1, mapfoldl/0,mapfoldl/1, - grab_bag/1,coverage/1]). + grab_bag/1,redundant_br/1, + coverage/1]). suite() -> [{ct_hooks,[ts_install_cth]}]. @@ -45,6 +46,7 @@ groups() -> beam_ssa_dead_crash, stack_init, grab_bag, + redundant_br, coverage ]}]. @@ -178,7 +180,7 @@ recv(_Config) -> self() ! 1, {1,yes} = tricky_recv_2(), self() ! 2, - {2,maybe} = tricky_recv_2(), + {2,'maybe'} = tricky_recv_2(), %% Test 'receive after infinity' in try/catch. Pid = spawn(fun recv_after_inf_in_try/0), @@ -282,7 +284,7 @@ tricky_recv_2() -> end, a; X=2 -> - Y = maybe, + Y = 'maybe', b end, {X,Y}. @@ -667,6 +669,7 @@ do_comb_sw_2(X) -> share_opt(_Config) -> ok = do_share_opt_1(0), ok = do_share_opt_2(), + ok = do_share_opt_3(), ok. do_share_opt_1(A) -> @@ -697,7 +700,16 @@ sopt_2({Flags, Opts}, ok) -> [] -> ok end. - + +do_share_opt_3() -> + true = sopt_3(id(ok)), + false = sopt_3(id(nok)), + ok. + +sopt_3(X) -> + %% Must be one line to trigger bug. + case X of ok -> id(?LINE), true; _ -> id(?LINE), false end. + beam_ssa_dead_crash(_Config) -> not_A_B = do_beam_ssa_dead_crash(id(false), id(true)), not_A_not_B = do_beam_ssa_dead_crash(false, false), @@ -712,7 +724,7 @@ do_beam_ssa_dead_crash(A, B) -> %% paths happens to end up in the same place. %% %% During the simulated execution of this function, the boolean - %% varible for a `br` instruction would be replaced with the + %% variable for a `br` instruction would be replaced with the %% literal atom `nil`, which is not allowed, and would crash the %% compiler. In practice, during the actual execution, control %% would never be transferred to that `br` instruction when the @@ -872,6 +884,8 @@ grab_bag(_Config) -> fact = grab_bag_17(), + {'EXIT',{{try_clause,[]},[_|_]}} = catch grab_bag_18(), + ok. grab_bag_1() -> @@ -933,7 +947,7 @@ grab_bag_4() -> end end. -grab_bag_5(A, B) when <<business:(node(power))>> -> +grab_bag_5(_A, _B) when <<business:(node(power))>> -> true. grab_bag_6(face) -> @@ -997,7 +1011,7 @@ grab_bag_11() -> _ -> other catch _:_ -> - catched + caught end. grab_bag_12() -> @@ -1084,6 +1098,35 @@ grab_bag_17() -> [] end. +grab_bag_18() -> + try 0 of + _V0 -> + bnot false + after + try [] of + wrong -> + ok + catch + _:_ when false -> + error + end + end. + + +redundant_br(_Config) -> + {false,{x,y,z}} = redundant_br_1(id({x,y,z})), + {true,[[a,b,c]]} = redundant_br_1(id([[[a,b,c]]])), + ok. + +redundant_br_1(Specs0) -> + {Join,Specs} = + if + is_list(hd(hd(Specs0))) -> {true,hd(Specs0)}; + true -> {false,Specs0} + end, + id({Join,Specs}). + +-record(coverage, {name}). coverage(_Config) -> @@ -1101,6 +1144,8 @@ coverage(_Config) -> error = coverage_2(), ok = coverage_3(), + #coverage{name=whatever} = coverage_4(), + {'EXIT',{{badrecord,ok},_}} = catch coverage_5(), ok. @@ -1115,5 +1160,23 @@ coverage_3() -> get(), ok. +coverage_4() -> + try + << <<42>> || false >>, + #coverage{} + catch + _:_ -> + error + end#coverage{name = whatever}. + +coverage_5() -> + try + << <<42>> || false >>, + ok + catch + _:_ -> + error + end#coverage{name = whatever}. + %% The identity function. id(I) -> I. |