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| author | Ian Lance Taylor <ian@gcc.gnu.org> | 2011-02-22 02:34:18 +0000 |
|---|---|---|
| committer | Ian Lance Taylor <ian@gcc.gnu.org> | 2011-02-22 02:34:18 +0000 |
| commit | 872cbb32e06acfc58d3ae000923272056994a699 (patch) | |
| tree | 01ce8ed56610aef23bd44a6e2e838a87746b428f /gcc | |
| parent | 7de97f9e1a0c1252ffc640f91061015cea939f32 (diff) | |
| download | gcc-872cbb32e06acfc58d3ae000923272056994a699.zip gcc-872cbb32e06acfc58d3ae000923272056994a699.tar.gz gcc-872cbb32e06acfc58d3ae000923272056994a699.tar.bz2 | |
Test shift count for overflow.
From-SVN: r170384
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/go/gofrontend/expressions.cc | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/go/gofrontend/expressions.cc b/gcc/go/gofrontend/expressions.cc index a073f9d..3d687a6 100644 --- a/gcc/go/gofrontend/expressions.cc +++ b/gcc/go/gofrontend/expressions.cc @@ -4434,7 +4434,7 @@ Binary_expression::eval_integer(Operator op, Type* left_type, mpz_t left_val, case OPERATOR_LSHIFT: { unsigned long shift = mpz_get_ui(right_val); - if (mpz_cmp_ui(right_val, shift) != 0) + if (mpz_cmp_ui(right_val, shift) != 0 || shift > 0x100000) { error_at(location, "shift count overflow"); mpz_set_ui(val, 0); |