diff options
Diffstat (limited to 'lib/CodeGen/InlineSpiller.cpp')
| -rw-r--r-- | lib/CodeGen/InlineSpiller.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/CodeGen/InlineSpiller.cpp b/lib/CodeGen/InlineSpiller.cpp index 99d2bd46a2..bb0e642313 100644 --- a/lib/CodeGen/InlineSpiller.cpp +++ b/lib/CodeGen/InlineSpiller.cpp @@ -1057,6 +1057,9 @@ foldMemoryOperand(ArrayRef<std::pair<MachineInstr*, unsigned> > Ops, bool WasCopy = MI->isCopy(); unsigned ImpReg = 0; + bool SpillSubRegs = (MI->getOpcode() == TargetOpcode::PATCHPOINT || + MI->getOpcode() == TargetOpcode::STACKMAP); + // TargetInstrInfo::foldMemoryOperand only expects explicit, non-tied // operands. SmallVector<unsigned, 8> FoldOps; @@ -1068,7 +1071,7 @@ foldMemoryOperand(ArrayRef<std::pair<MachineInstr*, unsigned> > Ops, continue; } // FIXME: Teach targets to deal with subregs. - if (MO.getSubReg()) + if (!SpillSubRegs && MO.getSubReg()) return false; // We cannot fold a load instruction into a def. if (LoadMI && MO.isDef()) |