Index: lib/Target/X86/X86ISelLowering.cpp
===================================================================
--- lib/Target/X86/X86ISelLowering.cpp
+++ lib/Target/X86/X86ISelLowering.cpp
@@ -2052,6 +2052,13 @@
        UI != UE; ++UI) {
     if (UI->getOpcode() != X86ISD::RET_FLAG)
       return false;
+    // If we are returning more than one value, we can definitely
+    // not make a tail call see PR19530
+    if (UI->getNumOperands() > 4)
+      return false;
+    if (UI->getNumOperands() == 4 &&
+        UI->getOperand(UI->getNumOperands()-1).getValueType() != MVT::Glue)
+      return false;
     HasRet = true;
   }
 
Index: test/CodeGen/X86/tailcall-multiret.ll
===================================================================
--- /dev/null
+++ test/CodeGen/X86/tailcall-multiret.ll
@@ -0,0 +1,18 @@
+; RUN: llc < %s -mcpu=core2 | FileCheck %s
+; See PR19530
+declare double    @llvm.powi.f64(double %Val, i32 %power)
+define <3 x double> @julia_foo17589(i64) {
+top:
+  %1 = trunc i64 %0 to i32
+  %2 = call double @llvm.powi.f64(double 1.000000e+00, i32 %1)
+; CHECK: callq   __powidf2
+  %3 = insertelement <3 x double> undef, double %2, i32 0
+  %4 = call double @llvm.powi.f64(double 2.000000e+00, i32 %1)
+; CHECK: callq   __powidf2
+  %5 = insertelement <3 x double> %3, double %4, i32 1
+  %6 = call double @llvm.powi.f64(double 3.000000e+00, i32 %1)
+; CHECK: callq   __powidf2
+  %7 = insertelement <3 x double> %5, double %6, i32 2
+; CHECK-NOT: TAILCALL
+  ret <3 x double> %7
+}
\ No newline at end of file