diff options
Diffstat (limited to 'llvm/lib/CodeGen/TargetRegisterInfo.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/TargetRegisterInfo.cpp | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/llvm/lib/CodeGen/TargetRegisterInfo.cpp b/llvm/lib/CodeGen/TargetRegisterInfo.cpp index 758fdabf5dd..eb8bcc320c1 100644 --- a/llvm/lib/CodeGen/TargetRegisterInfo.cpp +++ b/llvm/lib/CodeGen/TargetRegisterInfo.cpp @@ -360,7 +360,7 @@ bool TargetRegisterInfo::shouldRewriteCopySrc(const TargetRegisterClass *DefRC, } // Compute target-independent register allocator hints to help eliminate copies. -void +bool TargetRegisterInfo::getRegAllocationHints(unsigned VirtReg, ArrayRef<MCPhysReg> Order, SmallVectorImpl<MCPhysReg> &Hints, @@ -382,17 +382,18 @@ TargetRegisterInfo::getRegAllocationHints(unsigned VirtReg, // Check that Phys is a valid hint in VirtReg's register class. if (!isPhysicalRegister(Phys)) - return; + return false; if (MRI.isReserved(Phys)) - return; + return false; // Check that Phys is in the allocation order. We shouldn't heed hints // from VirtReg's register class if they aren't in the allocation order. The // target probably has a reason for removing the register. if (!is_contained(Order, Phys)) - return; + return false; // All clear, tell the register allocator to prefer this register. Hints.push_back(Phys); + return false; } bool TargetRegisterInfo::canRealignStack(const MachineFunction &MF) const { |
