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gccgo: internal compiler error in set_type #11537

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dvyukov opened this issue Jul 2, 2015 · 2 comments
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gccgo: internal compiler error in set_type #11537

dvyukov opened this issue Jul 2, 2015 · 2 comments
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Gccgo

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@dvyukov
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dvyukov commented Jul 2, 2015

gccgo crashes on the following input:

pacakge a
var f = func() {f++}
go1: internal compiler error: in set_type, at go/gofrontend/expressions.cc:15072
0x5f2d29 Numeric_constant::set_type(Type*, bool, Location)
    ../../gcc/go/gofrontend/expressions.cc:15072
0x5f2e25 Integer_expression::do_check_types(Gogo*)
    ../../gcc/go/gofrontend/expressions.cc:1909
0x6106c3 Expression::check_types(Gogo*)
    ../../gcc/go/gofrontend/expressions.h:814
0x6106c3 Check_types_traverse::expression(Expression**)
    ../../gcc/go/gofrontend/gogo.cc:3232
0x5e2a3d Expression::traverse(Expression**, Traverse*)
    ../../gcc/go/gofrontend/expressions.cc:43
0x613e5d Block::traverse(Traverse*)
    ../../gcc/go/gofrontend/gogo.cc:5741
0x61409e Function::traverse(Traverse*)
    ../../gcc/go/gofrontend/gogo.cc:4863
0x61689e Bindings::traverse(Traverse*, bool)
    ../../gcc/go/gofrontend/gogo.cc:7527
0x616b71 Gogo::traverse(Traverse*)
    ../../gcc/go/gofrontend/gogo.cc:2491
0x616ec2 Gogo::check_types()
    ../../gcc/go/gofrontend/gogo.cc:3242
0x61055c go_parse_input_files(char const**, unsigned int, bool, bool)
    ../../gcc/go/gofrontend/go.cc:108
0x60c32f go_langhook_parse_file
    ../../gcc/go/go-lang.c:304

gcc version 6.0.0 2015070 (experimental) (GCC)
@dvyukov
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dvyukov commented Jul 2, 2015

@paranoiacblack

@ianlancetaylor ianlancetaylor added this to the Gccgo milestone Jul 10, 2015
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CL https://golang.org/cl/13793 mentions this issue.

pbeeler pushed a commit to SaberMod/GCC_SaberMod that referenced this issue Aug 28, 2015
compiler: Don't crash on invalid arithmetic ops.
5706ab6 
    
    The gofrontend would crash after hitting an unreachable state while
    trying to determine the type of an arithmetic expression involving
    non-numeric values.  Instead of crashing, it should fail gracefully
    if the relevant error is already reported.
    
    Fixes golang/go#11537.
    
    Reviewed-on: https://go-review.googlesource.com/13793


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227227 138bc75d-0d04-0410-961f-82ee72b054a4
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