diff options
Diffstat (limited to 'lib/CodeGen/RegAllocLinearScan.cpp')
| -rw-r--r-- | lib/CodeGen/RegAllocLinearScan.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/CodeGen/RegAllocLinearScan.cpp b/lib/CodeGen/RegAllocLinearScan.cpp index 357a9fcd1a..a317846619 100644 --- a/lib/CodeGen/RegAllocLinearScan.cpp +++ b/lib/CodeGen/RegAllocLinearScan.cpp @@ -12,7 +12,6 @@ //===----------------------------------------------------------------------===// #define DEBUG_TYPE "regalloc" #include "llvm/Function.h" -#include "llvm/CodeGen/LiveIntervals.h" #include "llvm/CodeGen/LiveVariables.h" #include "llvm/CodeGen/MachineFrameInfo.h" #include "llvm/CodeGen/MachineFunctionPass.h" @@ -27,6 +26,7 @@ #include "Support/DepthFirstIterator.h" #include "Support/Statistic.h" #include "Support/STLExtras.h" +#include "LiveIntervals.h" #include <algorithm> using namespace llvm; @@ -562,6 +562,8 @@ void RA::assignRegOrStackSlotAtInterval(IntervalPtrs::value_type cur) // otherwise we spill all intervals aliasing the register with // minimum weight, rollback to the interval with the earliest // start point and let the linear scan algorithm run again + assert(MRegisterInfo::isPhysicalRegister(minReg) && + "did not choose a register to spill?"); std::vector<bool> toSpill(mri_->getNumRegs(), false); toSpill[minReg] = true; for (const unsigned* as = mri_->getAliasSet(minReg); *as; ++as) |