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| author | Jakub Jelinek <jakub@redhat.com> | 2017-04-12 08:12:26 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2017-04-12 08:12:26 +0200 |
| commit | d62e6f1078dd62f6e8937d1f48f1f77f0a78e19e (patch) | |
| tree | 3c5094f94841ffdb7f90d3632cb0157e88a7e98a /gcc/fold-const.c | |
| parent | 31d61ac600b2a6e8b80d0e27d11ec8d4720780ea (diff) | |
| download | gcc-d62e6f1078dd62f6e8937d1f48f1f77f0a78e19e.zip gcc-d62e6f1078dd62f6e8937d1f48f1f77f0a78e19e.tar.gz gcc-d62e6f1078dd62f6e8937d1f48f1f77f0a78e19e.tar.bz2 | |
re PR sanitizer/80349 (UBSAN: compile time crash with "type mismatch in binary expression" message)
PR sanitizer/80349
* fold-const.c (fold_binary_loc) <case BIT_IOR_EXPR>: Convert arg0's
first argument to type.
* g++.dg/ubsan/pr80349.C: New test.
From-SVN: r246865
Diffstat (limited to 'gcc/fold-const.c')
| -rw-r--r-- | gcc/fold-const.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/gcc/fold-const.c b/gcc/fold-const.c index 524bb0f..2f2e93a 100644 --- a/gcc/fold-const.c +++ b/gcc/fold-const.c @@ -9916,12 +9916,12 @@ fold_binary_loc (location_t loc, } if (c3 != c1) - return fold_build2_loc (loc, BIT_IOR_EXPR, type, - fold_build2_loc (loc, BIT_AND_EXPR, type, - TREE_OPERAND (arg0, 0), - wide_int_to_tree (type, - c3)), - arg1); + { + tem = fold_convert_loc (loc, type, TREE_OPERAND (arg0, 0)); + tem = fold_build2_loc (loc, BIT_AND_EXPR, type, tem, + wide_int_to_tree (type, c3)); + return fold_build2_loc (loc, BIT_IOR_EXPR, type, tem, arg1); + } } /* See if this can be simplified into a rotate first. If that |