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compiler: Report errors for non-integral shift counts.

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Fixes golang/go#12618.
    
    Reviewed-on: https://go-review.googlesource.com/14647

From-SVN: r229096
This commit is contained in:
Ian Lance Taylor 2015-10-20 18:14:30 +00:00
parent 51090a412a
commit 28c64f64a4
2 changed files with 4 additions and 2 deletions
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2
gcc/go/gofrontend/MERGE
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@ -1,4 +1,4 @@
a4bcd319d98ddc52b3e7d16ec87d92aad868ab05
302d8abbc499e28088d758ae8b2c024d8e50b9b3
The first line of this file holds the git revision number of the last
merge done from the gofrontend repository.

4
gcc/go/gofrontend/expressions.cc
View file

@ -5601,7 +5601,9 @@ Binary_expression::do_check_types(Gogo*)
if (left_type->integer_type() == NULL)
this->report_error(_("shift of non-integer operand"));
if (!right_type->is_abstract()
if (right_type->is_string_type())
this->report_error(_("shift count not unsigned integer"));
else if (!right_type->is_abstract()
&& (right_type->integer_type() == NULL
|| !right_type->integer_type()->is_unsigned()))
this->report_error(_("shift count not unsigned integer"));