diff options
Diffstat (limited to 'lib/CodeGen/PostRASchedulerList.cpp')
| -rw-r--r-- | lib/CodeGen/PostRASchedulerList.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/CodeGen/PostRASchedulerList.cpp b/lib/CodeGen/PostRASchedulerList.cpp index 12d9efa87b..eef20b9386 100644 --- a/lib/CodeGen/PostRASchedulerList.cpp +++ b/lib/CodeGen/PostRASchedulerList.cpp @@ -442,7 +442,9 @@ bool SchedulePostRATDList::BreakAntiDependencies() { AntiDepReg = Edge->getReg(); assert(AntiDepReg != 0 && "Anti-dependence on reg0?"); // Don't break anti-dependencies on non-allocatable registers. - if (AllocatableSet.test(AntiDepReg)) { + if (!AllocatableSet.test(AntiDepReg)) + AntiDepReg = 0; + else { // If the SUnit has other dependencies on the SUnit that it // anti-depends on, don't bother breaking the anti-dependency // since those edges would prevent such units from being |