Add call sequence start and end for __tls_get_addr

[oota-llvm.git] / lib / Target / PowerPC / PPCTLSDynamicCall.cpp

diff --git a/lib/Target/PowerPC/PPCTLSDynamicCall.cpp b/lib/Target/PowerPC/PPCTLSDynamicCall.cpp
index 2dc0d825c80dfb0b6d919b79785ff35c278e34aa..a9d2e888f4b7c0a6df641bc25a39d224526dc5e7 100644 (file)
--- a/lib/Target/PowerPC/PPCTLSDynamicCall.cpp
+++ b/lib/Target/PowerPC/PPCTLSDynamicCall.cpp
@@ -99,6 +99,11 @@ protected:
           break;
         }
 
+        // Don't really need to save data to the stack - the clobbered
+        // registers are already saved when the SDNode (e.g. PPCaddiTlsgdLAddr)
+        // gets translated to the pseudo instruction (e.g. ADDItlsgdLADDR).
+        BuildMI(MBB, I, DL, TII->get(PPC::ADJCALLSTACKDOWN)).addImm(0);
+
         // Expand into two ops built prior to the existing instruction.
         MachineInstr *Addi = BuildMI(MBB, I, DL, TII->get(Opc1), GPR3)
           .addReg(InReg);
@@ -113,6 +118,8 @@ protected:
                               .addReg(GPR3));
         Call->addOperand(MI->getOperand(3));
 
+        BuildMI(MBB, I, DL, TII->get(PPC::ADJCALLSTACKUP)).addImm(0).addImm(0);
+
         BuildMI(MBB, I, DL, TII->get(TargetOpcode::COPY), OutReg)
           .addReg(GPR3);