[PowerPC][NFC] We do not save/restore vrsave for any remaining subtargets.

Extend lit test to show that we don't save or restore vrsave register
when expanding @llvm.eh.unwind.init().

Author: mandlebug

llvm/test/CodeGen/PowerPC/unwind-dw2.ll

@@ -1,6 +1,16 @@
-; RUN: llc -verify-machineinstrs < %s
-target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-f128:128:128-v128:128:128-n32:64"
-target triple = "powerpc64-unknown-linux-gnu"
+; RUN: llc -mtriple=powerpc64-unknown-linux-gnu -verify-machineinstrs < %s | FileCheck %s
+; RUN: llc -mtriple=powerpc64le-unknown-linux-gnu -verify-machineinstrs < %s | FileCheck %s
+; RUN: llc -mtriple=powerpc-unknown-linux-gnu -verify-machineinstrs < %s | FileCheck %s
+
+; RUN: llc -mtriple=powerpc64-unknown-freebsd -verify-machineinstrs < %s | FileCheck %s
+; RUN: llc -mtriple=powerpc-unknown-freebsd -verify-machineinstrs < %s | FileCheck %s
+
+; RUN: llc -mtriple=powerpc64-unknown-aix-xcoff -verify-machineinstrs < %s | FileCheck %s
+; RUN: llc -mtriple=powerpc-unknown-aix-xcoff -verify-machineinstrs < %s | FileCheck %s
+
+; CHECK-NOT: vrsave
+; CHECK-NOT: mfspr
+; CHECK-NOT: mtspr
 
 ; Function Attrs: nounwind
 define void @foo() #0 {