Make sure stack link is set in 64-bit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31690 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/PowerPC/PPCRegisterInfo.cpp b/lib/Target/PowerPC/PPCRegisterInfo.cpp
index 3e79d04f650de4dde6bc16d187ac20f895266c55..062eda95681bb8db9fbe7b83a3ed002578b53d71 100644 (file)
--- a/lib/Target/PowerPC/PPCRegisterInfo.cpp
+++ b/lib/Target/PowerPC/PPCRegisterInfo.cpp
@@ -396,9 +396,15 @@ eliminateCallFramePseudoInstr(MachineFunction &MF, MachineBasicBlock &MBB,
 
       // Replace the pseudo instruction with a new instruction...
       if (Old->getOpcode() == PPC::ADJCALLSTACKDOWN) {
-        BuildMI(MBB, I, PPC::LWZ, 2, PPC::R0).addImm(0).addReg(PPC::R31);
-        BuildMI(MBB, I, PPC::STWU, 3)
-                               .addReg(PPC::R0).addImm(-Amount).addReg(PPC::R1);
+        if (!Subtarget.isPPC64()) {
+          BuildMI(MBB, I, PPC::LWZ, 2, PPC::R0).addImm(0).addReg(PPC::R31);
+          BuildMI(MBB, I, PPC::STWU, 3)
+                          .addReg(PPC::R0).addImm(-Amount).addReg(PPC::R1);
+        } else {
+          BuildMI(MBB, I, PPC::LD, 2, PPC::X0).addImm(0).addReg(PPC::X31);
+          BuildMI(MBB, I, PPC::STDU, 3)
+                          .addReg(PPC::X0).addImm(-Amount/4).addReg(PPC::X1);
+        }
       } else {
         assert(Old->getOpcode() == PPC::ADJCALLSTACKUP);
         BuildMI(MBB, I, PPC::ADDI, 2, PPC::R1).addReg(PPC::R1).addImm(Amount);