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[Bug sanitizer/80800] UBSAN: yet another false positive
- From: "mpolacek at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 19 May 2017 15:31:26 +0000
- Subject: [Bug sanitizer/80800] UBSAN: yet another false positive
- Auto-submitted: auto-generated
- References: <bug-80800-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80800
--- Comment #7 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Author: mpolacek
Date: Fri May 19 15:30:54 2017
New Revision: 248291
URL: https://gcc.gnu.org/viewcvs?rev=248291&root=gcc&view=rev
Log:
PR sanitizer/80800
* fold-const.c (extract_muldiv_1) <case TRUNC_DIV_EXPR>: Add
TYPE_OVERFLOW_WRAPS checks.
* c-c++-common/ubsan/pr80800.c: New test.
* c-c++-common/Wduplicated-branches-1.c: Adjust an expression.
Added:
trunk/gcc/testsuite/c-c++-common/ubsan/pr80800.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/fold-const.c
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/c-c++-common/Wduplicated-branches-1.c