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gccgo: internal compiler error in do_lower #12615

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dvyukov opened this issue Sep 14, 2015 · 2 comments
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gccgo: internal compiler error in do_lower #12615

dvyukov opened this issue Sep 14, 2015 · 2 comments
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Gccgo

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@dvyukov
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dvyukov commented Sep 14, 2015

gccgo crashes on the following program:

package a
var f=0<<6i
go1: internal compiler error: in do_lower, at go/gofrontend/expressions.cc:4881
0x5f86fc Binary_expression::do_lower(Gogo*, Named_object*, Statement_inserter*, int)
    ../../gcc/go/gofrontend/expressions.cc:4881
0x6108ae Expression::lower(Gogo*, Named_object*, Statement_inserter*, int)
    ../../gcc/go/gofrontend/expressions.h:801
0x6108ae Lower_parse_tree::expression(Expression**)
    ../../gcc/go/gofrontend/gogo.cc:2744
0x61245e Gogo::lower_expression(Named_object*, Statement_inserter*, Expression**)
    ../../gcc/go/gofrontend/gogo.cc:2783
0x61c0fc Variable::lower_init_expression(Gogo*, Named_object*, Statement_inserter*)
    ../../gcc/go/gofrontend/gogo.cc:6041
0x61c14c Lower_parse_tree::variable(Named_object*)
    ../../gcc/go/gofrontend/gogo.cc:2613
0x6169c9 Bindings::traverse(Traverse*, bool)
    ../../gcc/go/gofrontend/gogo.cc:7546
0x616b51 Gogo::traverse(Traverse*)
    ../../gcc/go/gofrontend/gogo.cc:2495
0x617047 Gogo::lower_parse_tree()
    ../../gcc/go/gofrontend/gogo.cc:2761
0x61042c go_parse_input_files(char const**, unsigned int, bool, bool)
    ../../gcc/go/gofrontend/go.cc:95
0x60c20f go_langhook_parse_file
    ../../gcc/go/go-lang.c:304

gofrontend is on commit 1d9d92ab09996d2f7795481d2876a21194502b89
@dvyukov
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dvyukov commented Sep 14, 2015

@ianlancetaylor

@ianlancetaylor ianlancetaylor added this to the Gccgo milestone Sep 14, 2015
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CL https://golang.org/cl/14646 mentions this issue.

rth7680 pushed a commit to rth7680/gcc that referenced this issue Oct 20, 2015
compiler: Report errors after evaluating invalid constant.
80c0558 
    
    The fix for golang/go#11541 made the assertion that getting an invalid
    Numeric_constant after evaluating an invalid constant must result in
    an error in a binary expression.  However, a Numeric_constant can be
    invalid if it is unset, which occurs when either operand cannot be
    converted to the right type.  These errors are issued after the
    Numeric_constant is lowered.
    
    Fixes golang/go#12615.
    
    Reviewed-on: https://go-review.googlesource.com/14646


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@229098 138bc75d-0d04-0410-961f-82ee72b054a4
@golang golang locked and limited conversation to collaborators Oct 24, 2016
asiekierka pushed a commit to WonderfulToolchain/gcc-ia16 that referenced this issue May 16, 2022
compiler: Report errors after evaluating invalid constant.
0e993e3 
    
    The fix for golang/go#11541 made the assertion that getting an invalid
    Numeric_constant after evaluating an invalid constant must result in
    an error in a binary expression.  However, a Numeric_constant can be
    invalid if it is unset, which occurs when either operand cannot be
    converted to the right type.  These errors are issued after the
    Numeric_constant is lowered.
    
    Fixes golang/go#12615.
    
    Reviewed-on: https://go-review.googlesource.com/14646

From-SVN: r229098
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