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authorAnthony Ramine <[email protected]>2014-03-04 02:23:47 +0100
committerAnthony Ramine <[email protected]>2014-03-04 02:36:13 +0100
commitadade27df2a89887ff44ef54e59996effafb6419 (patch)
tree3666e765fb33ab60bacf54b8042d8d2d3afb0135 /lib/compiler
parenta74e66a68f3b4ed590f928b4fd4f0808c6287a32 (diff)
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Handle nil as a wait_timeout argument in beam_utils:live_opt/4
Reported-by: Ulf Norell
Diffstat (limited to 'lib/compiler')
-rw-r--r--lib/compiler/src/beam_utils.erl2
-rw-r--r--lib/compiler/test/receive_SUITE.erl1
2 files changed, 3 insertions, 0 deletions
diff --git a/lib/compiler/src/beam_utils.erl b/lib/compiler/src/beam_utils.erl
index 27034aecce..8ca368c167 100644
--- a/lib/compiler/src/beam_utils.erl
+++ b/lib/compiler/src/beam_utils.erl
@@ -748,6 +748,8 @@ live_opt([{try_end,_}=I|Is], Regs, D, Acc) ->
live_opt(Is, Regs, D, [I|Acc]);
live_opt([{loop_rec_end,_}=I|Is], Regs, D, Acc) ->
live_opt(Is, Regs, D, [I|Acc]);
+live_opt([{wait_timeout,_,nil}=I|Is], Regs, D, Acc) ->
+ live_opt(Is, Regs, D, [I|Acc]);
live_opt([{wait_timeout,_,{Tag,_}}=I|Is], Regs, D, Acc) when Tag =/= x ->
live_opt(Is, Regs, D, [I|Acc]);
live_opt([{line,_}=I|Is], Regs, D, Acc) ->
diff --git a/lib/compiler/test/receive_SUITE.erl b/lib/compiler/test/receive_SUITE.erl
index ec49267ded..00a6e900d4 100644
--- a/lib/compiler/test/receive_SUITE.erl
+++ b/lib/compiler/test/receive_SUITE.erl
@@ -257,6 +257,7 @@ wait(Config) when is_list(Config) ->
self() ! <<42>>,
<<42>> = wait_1(r, 1, 2),
{1,2,3} = wait_1(1, 2, 3),
+ {'EXIT',{timeout_value,_}} = (catch receive after [] -> timeout end),
ok.
wait_1(r, _, _) ->