diff options
Diffstat (limited to 'include/llvm/CodeGen')
| -rw-r--r-- | include/llvm/CodeGen/LiveIntervalAnalysis.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/llvm/CodeGen/LiveIntervalAnalysis.h b/include/llvm/CodeGen/LiveIntervalAnalysis.h index 693d66b7de..c18c479ce8 100644 --- a/include/llvm/CodeGen/LiveIntervalAnalysis.h +++ b/include/llvm/CodeGen/LiveIntervalAnalysis.h @@ -63,6 +63,9 @@ namespace llvm { /// allocatableRegs_ - A bit vector of allocatable registers. BitVector allocatableRegs_; + /// reservedRegs_ - A bit vector of reserved registers. + BitVector reservedRegs_; + /// RegMaskSlots - Sorted list of instructions with register mask operands. /// Always use the 'r' slot, RegMasks are normal clobbers, not early /// clobbers. @@ -128,6 +131,12 @@ namespace llvm { return allocatableRegs_.test(reg); } + /// isReserved - is the physical register reg reserved in the current + /// function + bool isReserved(unsigned reg) const { + return reservedRegs_.test(reg); + } + /// getScaledIntervalSize - get the size of an interval in "units," /// where every function is composed of one thousand units. This /// measure scales properly with empty index slots in the function. |