diff options
Diffstat (limited to 'llvm/lib/CodeGen')
| -rw-r--r-- | llvm/lib/CodeGen/RenameIndependentSubregs.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/RenameIndependentSubregs.cpp b/llvm/lib/CodeGen/RenameIndependentSubregs.cpp index d2eff950d86..a5abd500080 100644 --- a/llvm/lib/CodeGen/RenameIndependentSubregs.cpp +++ b/llvm/lib/CodeGen/RenameIndependentSubregs.cpp @@ -247,6 +247,9 @@ void RenameIndependentSubregs::rewriteOperands(const IntEqClasses &Classes, /// Undef use operands are not tracked in the equivalence class but need /// to be update if they are tied. MO.getParent()->substituteRegister(Reg, VReg, 0, TRI); + + // substituteRegister breaks the iterator, so restart. + I = MRI->reg_nodbg_begin(Reg); } } // TODO: We could attempt to recompute new register classes while visiting |
