diff options
| -rw-r--r-- | lib/Target/ARM/ARMExpandPseudoInsts.cpp | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/lib/Target/ARM/ARMExpandPseudoInsts.cpp b/lib/Target/ARM/ARMExpandPseudoInsts.cpp index bbfd627a0c..39d7afa853 100644 --- a/lib/Target/ARM/ARMExpandPseudoInsts.cpp +++ b/lib/Target/ARM/ARMExpandPseudoInsts.cpp @@ -606,6 +606,19 @@ bool ARMExpandPseudo::ExpandMBB(MachineBasicBlock &MBB) { FramePtr, -NumBytes, ARMCC::AL, 0, *TII); } + // If there's dynamic realignment, adjust for it. + if (!RI.needsStackRealignment(MF)) { + MachineFrameInfo *MFI = MF.getFrameInfo(); + unsigned MaxAlign = MFI->getMaxAlignment(); + assert (!AFI->isThumb1OnlyFunction()); + // Emit bic r6, r6, MaxAlign + unsigned bicOpc = AFI->isThumbFunction() ? + ARM::t2BICri : ARM::BICri; + AddDefaultCC(AddDefaultPred(BuildMI(MBB, MBBI, MI.getDebugLoc(), + TII->get(bicOpc), ARM::R6) + .addReg(ARM::R6, RegState::Kill) + .addImm(MaxAlign-1))); + } } MI.eraseFromParent(); |