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| author | Björn Gustavsson <[email protected]> | 2013-08-19 16:00:03 +0200 |
|---|---|---|
| committer | Björn Gustavsson <[email protected]> | 2013-08-19 16:00:03 +0200 |
| commit | 627f658bb7a53cdbfe862ca3aa5d66259bbaead7 (patch) | |
| tree | 8e48cfeb7368871c82b8a93ea3baa20e903ca7e2 /lib | |
| parent | b3068b837fc5d82a0cf49d57b20d3b6d4ef8ea2d (diff) | |
| parent | 81ac8ee8eba862d4e8a12f88f15e2ee526d74dbd (diff) | |
| download | otp-627f658bb7a53cdbfe862ca3aa5d66259bbaead7.tar.gz otp-627f658bb7a53cdbfe862ca3aa5d66259bbaead7.tar.bz2 otp-627f658bb7a53cdbfe862ca3aa5d66259bbaead7.zip | |
Merge branch 'maint'
* maint:
Fix compiler crash for 'B and B' guard
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/compiler/src/beam_bool.erl | 3 | ||||
| -rw-r--r-- | lib/compiler/test/guard_SUITE.erl | 8 |
2 files changed, 11 insertions, 0 deletions
diff --git a/lib/compiler/src/beam_bool.erl b/lib/compiler/src/beam_bool.erl index cf5455dfde..124abd13c1 100644 --- a/lib/compiler/src/beam_bool.erl +++ b/lib/compiler/src/beam_bool.erl @@ -425,6 +425,9 @@ bopt_tree([], Forest, Pre) -> safe_bool_op(N, Ar) -> erl_internal:new_type_test(N, Ar) orelse erl_internal:comp_op(N, Ar). +bopt_bool_args([V0,V0], Forest0) -> + {V,Forest} = bopt_bool_arg(V0, Forest0), + {[V,V],Forest}; bopt_bool_args(As, Forest) -> mapfoldl(fun bopt_bool_arg/2, Forest, As). diff --git a/lib/compiler/test/guard_SUITE.erl b/lib/compiler/test/guard_SUITE.erl index 5656d23090..a0a9bb7ddd 100644 --- a/lib/compiler/test/guard_SUITE.erl +++ b/lib/compiler/test/guard_SUITE.erl @@ -813,8 +813,16 @@ and_guard(Config) when is_list(Config) -> ?line ok = relprod({'Set',a,b}, {'Set',a,b}), + ok = and_same_var(42), + {'EXIT',{if_clause,_}} = (catch and_same_var(x)), ok. +and_same_var(V) -> + B = is_integer(V), + if + B or B -> ok + end. + relprod(R1, R2) when (erlang:size(R1) =:= 3) and (erlang:element(1,R1) =:= 'Set'), (erlang:size(R2) =:= 3) and (erlang:element(1,R2) =:= 'Set') -> ok. |