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| author | John Högberg <[email protected]> | 2019-07-03 15:07:15 +0200 |
|---|---|---|
| committer | John Högberg <[email protected]> | 2019-07-03 15:22:59 +0200 |
| commit | a8461ffed773c4ff80779c16a3637ba3d2e915fd (patch) | |
| tree | 7cfc0fa80571001ade1d8e9ac83512a90118aa1a /lib/compiler/src/beam_ssa_bsm.erl | |
| parent | 4319a7f8bc93388ec540e954eb9bb73ea1eec4ef (diff) | |
| download | otp-a8461ffed773c4ff80779c16a3637ba3d2e915fd.tar.gz otp-a8461ffed773c4ff80779c16a3637ba3d2e915fd.tar.bz2 otp-a8461ffed773c4ff80779c16a3637ba3d2e915fd.zip | |
beam_ssa_bsm: Leave ?BADARG_BLOCK alone when cloning fail path
Diffstat (limited to 'lib/compiler/src/beam_ssa_bsm.erl')
| -rw-r--r-- | lib/compiler/src/beam_ssa_bsm.erl | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/lib/compiler/src/beam_ssa_bsm.erl b/lib/compiler/src/beam_ssa_bsm.erl index 382e6f635e..1ac9e6a3bb 100644 --- a/lib/compiler/src/beam_ssa_bsm.erl +++ b/lib/compiler/src/beam_ssa_bsm.erl @@ -683,8 +683,12 @@ aca_copy_successors(Lbl0, Blocks0, Counter0) -> Lbl = maps:get(Lbl0, BRs), {Lbl, Blocks, Counter}. +aca_cs_build_brs([?BADARG_BLOCK=Lbl | Path], Counter, Acc) -> + %% ?BADARG_BLOCK is a marker and not an actual block, so renaming it will + %% break exception handling. + aca_cs_build_brs(Path, Counter, Acc#{ Lbl => Lbl }); aca_cs_build_brs([Lbl | Path], Counter0, Acc) -> - aca_cs_build_brs(Path, Counter0 + 1, maps:put(Lbl, Counter0, Acc)); + aca_cs_build_brs(Path, Counter0 + 1, Acc#{ Lbl => Counter0 }); aca_cs_build_brs([], Counter, Acc) -> {Acc, Counter}. |