PR tree-optimization/78574
commit922a7856a1d40a99275a0b112ad95e2c4955d7bc
authoramker <amker@138bc75d-0d04-0410-961f-82ee72b054a4>
Wed, 30 Nov 2016 14:41:09 +0000 (30 14:41 +0000)
committeramker <amker@138bc75d-0d04-0410-961f-82ee72b054a4>
Wed, 30 Nov 2016 14:41:09 +0000 (30 14:41 +0000)
tree5ccf9c104099340d6ccd504008b97d48de9e3595
parent67582825d129973afe28fdd2007b2f1fa16a289b
PR tree-optimization/78574
* tree-ssa-loop-ivopts.c (find_deriving_biv_for_expr): Skip loop
header PHI that doesn't define biv.
gcc/testsuite
PR tree-optimization/78574
* gcc.c-torture/compile/pr78574.c: New test.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@243026 138bc75d-0d04-0410-961f-82ee72b054a4
gcc/ChangeLog
gcc/testsuite/ChangeLog
gcc/testsuite/gcc.c-torture/compile/pr78574.c [new file with mode: 0644]
gcc/tree-ssa-loop-ivopts.c