forked from OSchip/llvm-project
252165b27a
Summary: It is possible for LVI to encounter instructions that are not in valid SSA form and reference themselves. One example is the following: %tmp4 = and i1 %tmp4, undef Before this patch LVI would recurse until running out of stack memory and crashed. This patch marks these self-referential instructions as Overdefined and aborts analysis on the instruction. Fixes https://bugs.llvm.org/show_bug.cgi?id=33357 Reviewers: craig.topper, anna, efriedma, dberlin, sebpop, kuhar Reviewed by: dberlin Subscribers: uabelho, spatel, a.elovikov, fhahn, eli.friedman, mzolotukhin, spop, evandro, davide, llvm-commits Differential Revision: https://reviews.llvm.org/D34135 llvm-svn: 327432 |
||
|---|---|---|
| .. | ||
| 2008-11-27-EntryMunge.ll | ||
| 2010-08-26-and.ll | ||
| 2011-04-02-SimplifyDeadBlock.ll | ||
| 2011-04-14-InfLoop.ll | ||
| 2012-07-19-NoSuccessorIndirectBr.ll | ||
| PR33357-lvi-recursion.ll | ||
| and-and-cond.ll | ||
| and-cond.ll | ||
| assume-edge-dom.ll | ||
| assume.ll | ||
| basic.ll | ||
| branch-no-const.ll | ||
| compare.ll | ||
| conservative-lvi.ll | ||
| crash.ll | ||
| ddt-crash.ll | ||
| ddt-crash2.ll | ||
| ddt-crash3.ll | ||
| ddt-crash4.ll | ||
| degenerate-phi.ll | ||
| fold-not-thread.ll | ||
| guards.ll | ||
| implied-cond.ll | ||
| indirectbr.ll | ||
| induction.ll | ||
| landing-pad.ll | ||
| lvi-load.ll | ||
| lvi-tristate.ll | ||
| no-irreducible-loops.ll | ||
| or-undef.ll | ||
| phi-eq.ll | ||
| phi-known.ll | ||
| pr9331.ll | ||
| pr15851_hang.ll | ||
| pr22086.ll | ||
| pr26096.ll | ||
| pr27840.ll | ||
| pr33605.ll | ||
| pr33917.ll | ||
| pr36133.ll | ||
| range-compare.ll | ||
| select.ll | ||
| static-profile.ll | ||
| thread-cmp.ll | ||
| thread-loads.ll | ||
| threading_prof1.ll | ||
| threading_prof2.ll | ||
| update-edge-weight.ll | ||