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| author | Ian Lance Taylor <ian@gcc.gnu.org> | 2011-03-25 19:23:10 +0000 |
|---|---|---|
| committer | Ian Lance Taylor <ian@gcc.gnu.org> | 2011-03-25 19:23:10 +0000 |
| commit | 7657ab90b46149b27703a397f3764ef9517eb988 (patch) | |
| tree | 22b7104a112444a970a590843a98772767f2858e | |
| parent | ba78087b6c12fa4e3ab9d6b10c074624daec20ce (diff) | |
| download | gcc-7657ab90b46149b27703a397f3764ef9517eb988.tar.gz | |
Avoid overflow error after negative shift count error.
From-SVN: r171523
| -rw-r--r-- | gcc/go/gofrontend/expressions.cc | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/gcc/go/gofrontend/expressions.cc b/gcc/go/gofrontend/expressions.cc index 861d5c0ca99..2ee4a696db9 100644 --- a/gcc/go/gofrontend/expressions.cc +++ b/gcc/go/gofrontend/expressions.cc @@ -5747,7 +5747,13 @@ Binary_expression::do_check_types(Gogo*) if (this->right_->integer_constant_value(true, val, &type)) { if (mpz_sgn(val) < 0) - this->report_error(_("negative shift count")); + { + this->report_error(_("negative shift count")); + mpz_set_ui(val, 0); + source_location rloc = this->right_->location(); + this->right_ = Expression::make_integer(&val, right_type, + rloc); + } } mpz_clear(val); } |