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| author | Paolo Carlini <paolo.carlini@oracle.com> | 2013-05-01 19:19:44 +0000 |
|---|---|---|
| committer | Paolo Carlini <paolo@gcc.gnu.org> | 2013-05-01 19:19:44 +0000 |
| commit | 1a989b6179c0a10892785658443e93507dc597ee (patch) | |
| tree | 508a2f6b25799edf4c0ed0c43034da30fd462ef4 /gcc/cp | |
| parent | 36ff9dfbbec06afc69c642ff460abbd4cbbd78e1 (diff) | |
| download | gcc-1a989b6179c0a10892785658443e93507dc597ee.zip gcc-1a989b6179c0a10892785658443e93507dc597ee.tar.gz gcc-1a989b6179c0a10892785658443e93507dc597ee.tar.bz2 | |
re PR c++/57132 (spurious warning: division by zero [-Wdiv-by-zero] in if (m) res %=m;)
/cp
2013-05-01 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/57132
* pt.c (tsubst_copy_and_build, MODOP_EXPR): Increase / decrease
c_inhibit_evaluation_warnings around build_x_modify_expr call.
/testsuite
2013-05-01 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/57132
* g++.dg/warn/Wdiv-by-zero-bogus-2.C: New.
From-SVN: r198504
Diffstat (limited to 'gcc/cp')
| -rw-r--r-- | gcc/cp/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/cp/pt.c | 9 |
2 files changed, 14 insertions, 1 deletions
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog index 09f10df..e4996fb 100644 --- a/gcc/cp/ChangeLog +++ b/gcc/cp/ChangeLog @@ -1,5 +1,11 @@ 2013-05-01 Paolo Carlini <paolo.carlini@oracle.com> + PR c++/57132 + * pt.c (tsubst_copy_and_build, MODOP_EXPR): Increase / decrease + c_inhibit_evaluation_warnings around build_x_modify_expr call. + +2013-05-01 Paolo Carlini <paolo.carlini@oracle.com> + PR c++/57092 * semantics.c (finish_decltype_type): Handle instantiated template non-type arguments. diff --git a/gcc/cp/pt.c b/gcc/cp/pt.c index 57f65b3..33ab292 100644 --- a/gcc/cp/pt.c +++ b/gcc/cp/pt.c @@ -13810,7 +13810,11 @@ tsubst_copy_and_build (tree t, case MODOP_EXPR: { - tree r = build_x_modify_expr + tree r; + + ++c_inhibit_evaluation_warnings; + + r = build_x_modify_expr (EXPR_LOCATION (t), RECUR (TREE_OPERAND (t, 0)), TREE_CODE (TREE_OPERAND (t, 1)), @@ -13824,6 +13828,9 @@ tsubst_copy_and_build (tree t, here. */ if (TREE_NO_WARNING (t)) TREE_NO_WARNING (r) = TREE_NO_WARNING (t); + + --c_inhibit_evaluation_warnings; + RETURN (r); } |