diff options
| -rw-r--r-- | llvm/include/llvm/Target/TargetRegisterInfo.h | 5 | ||||
| -rw-r--r-- | llvm/lib/CodeGen/StackMapLivenessAnalysis.cpp | 2 |
2 files changed, 7 insertions, 0 deletions
diff --git a/llvm/include/llvm/Target/TargetRegisterInfo.h b/llvm/include/llvm/Target/TargetRegisterInfo.h index d5c048e010e..a7552565c93 100644 --- a/llvm/include/llvm/Target/TargetRegisterInfo.h +++ b/llvm/include/llvm/Target/TargetRegisterInfo.h @@ -456,6 +456,11 @@ public: /// used by register scavenger to determine what registers are free. virtual BitVector getReservedRegs(const MachineFunction &MF) const = 0; + /// Prior to adding the live-out mask to a stackmap or patchpoint + /// instruction, provide the target the opportunity to adjust it (mainly to + /// remove pseudo-registers that should be ignored). + virtual void adjustStackMapLiveOutMask(uint32_t *Mask) const { } + /// getMatchingSuperReg - Return a super-register of the specified register /// Reg so its sub-register of index SubIdx is Reg. unsigned getMatchingSuperReg(unsigned Reg, unsigned SubIdx, diff --git a/llvm/lib/CodeGen/StackMapLivenessAnalysis.cpp b/llvm/lib/CodeGen/StackMapLivenessAnalysis.cpp index c2ee87a3de8..767f43a420f 100644 --- a/llvm/lib/CodeGen/StackMapLivenessAnalysis.cpp +++ b/llvm/lib/CodeGen/StackMapLivenessAnalysis.cpp @@ -123,5 +123,7 @@ uint32_t *StackMapLiveness::createRegisterMask() const { for (LivePhysRegs::const_iterator RI = LiveRegs.begin(), RE = LiveRegs.end(); RI != RE; ++RI) Mask[*RI / 32] |= 1U << (*RI % 32); + + TRI->adjustStackMapLiveOutMask(Mask); return Mask; } |
