Change -arm-divmod-libcall to a target neutral option.

llvm-svn: 129045

2 files changed, 7 insertions, 6 deletions

diff --git a/llvm/lib/Target/ARM/ARMISelLowering.cpp b/llvm/lib/Target/ARM/ARMISelLowering.cpp
index 6ff57522f0e..d030f68528e 100644
--- a/llvm/lib/Target/ARM/ARMISelLowering.cpp
+++ b/llvm/lib/Target/ARM/ARMISelLowering.cpp
@@ -72,11 +72,6 @@ ARMInterworking("arm-interworking", cl::Hidden,
   cl::desc("Enable / disable ARM interworking (for debugging only)"),
   cl::init(true));
 
-static cl::opt<bool>
-UseDivMod("arm-divmod-libcall", cl::Hidden,
-  cl::desc("Use __{u}divmod libcalls for div / rem pairs"),
-  cl::init(false));
-
 void ARMTargetLowering::addTypeForNEON(EVT VT, EVT PromotedLdStVT,
                                        EVT PromotedBitwiseVT) {
   if (VT != PromotedLdStVT) {
@@ -398,7 +393,7 @@ ARMTargetLowering::ARMTargetLowering(TargetMachine &TM)
     setLibcallCallingConv(RTLIB::UDIV_I32, CallingConv::ARM_AAPCS);
   }
 
-  if (UseDivMod) {
+  if (HasDivModLibcall) {
     setLibcallName(RTLIB::SDIVREM_I32, "__divmodsi4");
     setLibcallName(RTLIB::UDIVREM_I32, "__udivmodsi4");
   }
diff --git a/llvm/lib/Target/TargetMachine.cpp b/llvm/lib/Target/TargetMachine.cpp
index 681842ea6b6..8c7330a77c7 100644
--- a/llvm/lib/Target/TargetMachine.cpp
+++ b/llvm/lib/Target/TargetMachine.cpp
@@ -48,6 +48,7 @@ namespace llvm {
   bool RealignStack;
   bool DisableJumpTables;
   bool StrongPHIElim;
+  bool HasDivModLibcall;
   bool AsmVerbosityDefault(false);
 }
 
@@ -205,6 +206,11 @@ EnableStrongPHIElim(cl::Hidden, "strong-phi-elim",
   cl::desc("Use strong PHI elimination."),
   cl::location(StrongPHIElim),
   cl::init(false));
+static cl::opt<bool, true>
+UseDivMod("use-divmod-libcall",
+  cl::desc("Use __{u}divmod libcalls for div / rem pairs"),
+  cl::location(HasDivModLibcall),
+  cl::init(false));
 static cl::opt<bool>
 DataSections("fdata-sections",
   cl::desc("Emit data into separate sections"),