diff options
Diffstat (limited to 'contrib/llvm/lib/Target/X86/X86ISelLowering.cpp')
| -rw-r--r-- | contrib/llvm/lib/Target/X86/X86ISelLowering.cpp | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/contrib/llvm/lib/Target/X86/X86ISelLowering.cpp b/contrib/llvm/lib/Target/X86/X86ISelLowering.cpp index c12a3ed..dd9966f 100644 --- a/contrib/llvm/lib/Target/X86/X86ISelLowering.cpp +++ b/contrib/llvm/lib/Target/X86/X86ISelLowering.cpp @@ -22228,6 +22228,35 @@ X86TargetLowering::EmitLoweredCatchPad(MachineInstr *MI, } MachineBasicBlock * +X86TargetLowering::EmitLoweredTLSAddr(MachineInstr *MI, + MachineBasicBlock *BB) const { + // So, here we replace TLSADDR with the sequence: + // adjust_stackdown -> TLSADDR -> adjust_stackup. + // We need this because TLSADDR is lowered into calls + // inside MC, therefore without the two markers shrink-wrapping + // may push the prologue/epilogue pass them. + const TargetInstrInfo &TII = *Subtarget->getInstrInfo(); + DebugLoc DL = MI->getDebugLoc(); + MachineFunction &MF = *BB->getParent(); + + // Emit CALLSEQ_START right before the instruction. + unsigned AdjStackDown = TII.getCallFrameSetupOpcode(); + MachineInstrBuilder CallseqStart = + BuildMI(MF, DL, TII.get(AdjStackDown)).addImm(0); + BB->insert(MachineBasicBlock::iterator(MI), CallseqStart); + + // Emit CALLSEQ_END right after the instruction. + // We don't call erase from parent because we want to keep the + // original instruction around. + unsigned AdjStackUp = TII.getCallFrameDestroyOpcode(); + MachineInstrBuilder CallseqEnd = + BuildMI(MF, DL, TII.get(AdjStackUp)).addImm(0).addImm(0); + BB->insertAfter(MachineBasicBlock::iterator(MI), CallseqEnd); + + return BB; +} + +MachineBasicBlock * X86TargetLowering::EmitLoweredTLSCall(MachineInstr *MI, MachineBasicBlock *BB) const { // This is pretty easy. We're taking the value that we received from @@ -22607,6 +22636,11 @@ X86TargetLowering::EmitInstrWithCustomInserter(MachineInstr *MI, case X86::TCRETURNri64: case X86::TCRETURNmi64: return BB; + case X86::TLS_addr32: + case X86::TLS_addr64: + case X86::TLS_base_addr32: + case X86::TLS_base_addr64: + return EmitLoweredTLSAddr(MI, BB); case X86::WIN_ALLOCA: return EmitLoweredWinAlloca(MI, BB); case X86::CATCHRET: |
