Do not reserve $gp as a dedicated global base register if the target ABI is not O32.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151614 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/Mips/MipsISelDAGToDAG.cpp b/lib/Target/Mips/MipsISelDAGToDAG.cpp
index f60a15e9e565634487fb73b9fae13eed16e96ba4..a1e50b791d8cb7ad360ef8f48ea17fee0db20910 100644 (file)
--- a/lib/Target/Mips/MipsISelDAGToDAG.cpp
+++ b/lib/Target/Mips/MipsISelDAGToDAG.cpp
@@ -126,7 +126,8 @@ void MipsDAGToDAGISel::InitGlobalBaseReg(MachineFunction &MF) {
   unsigned V0, V1, GlobalBaseReg = MipsFI->getGlobalBaseReg();
   bool FixGlobalBaseReg = MipsFI->globalBaseRegFixed();
 
-  if (FixGlobalBaseReg) // $gp is the global base register.
+  if (Subtarget.isABI_O32() && FixGlobalBaseReg)
+    // $gp is the global base register.
     V0 = V1 = GlobalBaseReg;
   else {
     const TargetRegisterClass *RC;