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| author | amodra <amodra@138bc75d-0d04-0410-961f-82ee72b054a4> | 2017-08-25 12:21:00 +0000 |
|---|---|---|
| committer | amodra <amodra@138bc75d-0d04-0410-961f-82ee72b054a4> | 2017-08-25 12:21:00 +0000 |
| commit | 1a0056ba14578e289082dfff4e6dcd9118866c78 (patch) | |
| tree | f735f420198ea1aea6d35896dd4690efd5e57b63 | |
| parent | 2edde49591cbdb8e412177aad231b1afaa743435 (diff) | |
| download | gcc-1a0056ba14578e289082dfff4e6dcd9118866c78.tar.gz | |
PR81747, ICE in operator[]
PR rtl-optimization/81747
* cse.c (cse_extended_basic_block): Don't attempt to record
equivalences for degenerate conditional branches that branch
to their fall-through.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@251349 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/cse.c | 1 |
2 files changed, 8 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 4f2350a2cc6..7d03c8a2498 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2017-08-25 Alan Modra <amodra@gmail.com> + + PR rtl-optimization/81747 + * cse.c (cse_extended_basic_block): Don't attempt to record + equivalences for degenerate conditional branches that branch + to their fall-through. + 2017-08-24 Martin Sebor <msebor@redhat.com> PR middle-end/81908 diff --git a/gcc/cse.c b/gcc/cse.c index dfcebbfbc02..191fd0699fb 100644 --- a/gcc/cse.c +++ b/gcc/cse.c @@ -6640,6 +6640,7 @@ cse_extended_basic_block (struct cse_basic_block_data *ebb_data) equivalences due to the condition being tested. */ insn = BB_END (bb); if (path_entry < path_size - 1 + && EDGE_COUNT (bb->succs) == 2 && JUMP_P (insn) && single_set (insn) && any_condjump_p (insn)) |