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gccgo: internal compiler error in record_var_depends_on #11543

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dvyukov opened this issue Jul 2, 2015 · 1 comment
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gccgo: internal compiler error in record_var_depends_on #11543

dvyukov opened this issue Jul 2, 2015 · 1 comment
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@dvyukov
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dvyukov commented Jul 2, 2015

gccgo crashes on the following input:

package a
var e,f,f = 0(0
go1: internal compiler error: in record_var_depends_on, at go/gofrontend/gogo.h:486
0x63aca1 Gogo::record_var_depends_on(Variable*, Named_object*)
    ../../gcc/go/gofrontend/gogo.h:486
0x63aca1 Parse::init_vars_from_call(Typed_identifier_list const*, Type*, Expression*, bool, Location)
    ../../gcc/go/gofrontend/parse.cc:1741
0x63b03f Parse::init_vars(Typed_identifier_list const*, Type*, Expression_list*, bool, Location)
    ../../gcc/go/gofrontend/parse.cc:1646
0x644647 Parse::var_spec(void*)
    ../../gcc/go/gofrontend/parse.cc:1628
0x6376e8 Parse::var_decl()
    ../../gcc/go/gofrontend/parse.cc:1588
0x648523 Parse::program()
    ../../gcc/go/gofrontend/parse.cc:5667
0x610411 go_parse_input_files(char const**, unsigned int, bool, bool)
    ../../gcc/go/gofrontend/go.cc:73
0x60c32f go_langhook_parse_file
    ../../gcc/go/go-lang.c:304

gcc version 6.0.0 2015070 (experimental) (GCC)
@ianlancetaylor ianlancetaylor added this to the Gccgo milestone Jul 10, 2015
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CL https://golang.org/cl/13895 mentions this issue.

pbeeler pushed a commit to SaberMod/GCC_SaberMod that referenced this issue Aug 28, 2015
compiler: Don't record dependencies of invalid redefinitions.
8416894 
    
    The gofrontend would crash when trying to find the initialization
    order of a variable list where one of the listed variables was an
    invalid redefinition of another in a call statement.  This patch
    fixes initialization from call statements to consider invalid
    redefinitions before recording dependency information.
    
    Fixes golang/go#11543.
    
    Reviewed-on: https://go-review.googlesource.com/13895


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227276 138bc75d-0d04-0410-961f-82ee72b054a4
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