Temporarily disable tail calls on ARM to work around some linker problems.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111050 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMISelLowering.cpp b/lib/Target/ARM/ARMISelLowering.cpp
index 073528a..5a03a07 100644
--- a/lib/Target/ARM/ARMISelLowering.cpp
+++ b/lib/Target/ARM/ARMISelLowering.cpp
@@ -51,6 +51,12 @@
STATISTIC(NumTailCalls, "Number of tail calls");
+// This option should go away when tail calls fully work.
+static cl::opt<bool>
+EnableARMTailCalls("arm-tail-calls", cl::Hidden,
+ cl::desc("Generate tail calls (TEMPORARY OPTION)."),
+ cl::init(false));
+
// This option should go away when Machine LICM is smart enough to hoist a
// reg-to-reg VDUP.
static cl::opt<bool>
@@ -1117,6 +1123,9 @@
MachineFunction &MF = DAG.getMachineFunction();
bool IsStructRet = (Outs.empty()) ? false : Outs[0].Flags.isSRet();
bool IsSibCall = false;
+ // Temporarily disable tail calls so things don't break.
+ if (!EnableARMTailCalls)
+ isTailCall = false;
if (isTailCall) {
// Check if it's really possible to do a tail call.
isTailCall = IsEligibleForTailCallOptimization(Callee, CallConv,