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PR target/88234
authorjakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4>
Thu, 29 Nov 2018 14:23:21 +0000 (14:23 +0000)
committerjakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4>
Thu, 29 Nov 2018 14:23:21 +0000 (14:23 +0000)
commit15728e0256987bc986d235c021e5f7b0928a0642
tree9c95b0ce844161a5d2b42f74d6c575c8b751b76atree
parent554f81c6e458cd966915894d78713e246ffd87b0commit | diff
PR target/88234
* config/rs6000/rs6000.c (rs6000_gimple_fold_builtin): For
vec_add and vec_sub builtins, perform PLUS_EXPR or MINUS_EXPR
in unsigned_type_for instead of vector integral type where overflow
doesn't wrap.

* gcc.dg/ubsan/pr88234.c: New test.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@266619 138bc75d-0d04-0410-961f-82ee72b054a4
gcc/ChangeLog diff | blob | blame | history
gcc/config/rs6000/rs6000.c diff | blob | blame | history
gcc/testsuite/ChangeLog diff | blob | blame | history
gcc/testsuite/gcc.dg/ubsan/pr88234.c [new file with mode: 0644] blob
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