diff options
| -rw-r--r-- | include/llvm/CodeGen/LiveInterval.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/llvm/CodeGen/LiveInterval.h b/include/llvm/CodeGen/LiveInterval.h index d7b8f44..3bce496 100644 --- a/include/llvm/CodeGen/LiveInterval.h +++ b/include/llvm/CodeGen/LiveInterval.h @@ -508,6 +508,12 @@ namespace llvm { if (++I == E) return; } + // Special case: A PHIDef value can have its def in the middle of a + // segment if the value happens to be live out of the layout + // predecessor. + // Such a value is not live-in. + if (EarlyVal->def == Idx.getBaseIndex()) + EarlyVal = 0; } // I now points to the segment that may be live-through, or defined by // this instr. Ignore segments starting after the current instr. |