Don't spill PPC VRSAVE on non-Darwin (even in SjLj)
As Bill Schmidt pointed out to me, only on Darwin do we need to spill/restore
VRSAVE in the SjLj code. For non-Darwin, don't spill/restore VRSAVE (and I've
added some asserts to make sure that we're not).
As it turns out, we're not currently handling the Darwin case correctly (I've
added a FIXME in the test case). I've tried adding various implied register
definitions/uses to force the spill without success, so I'll need to address
this later.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178096 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/PowerPC/sjlj.ll b/test/CodeGen/PowerPC/sjlj.ll
index 3440b31..7ea35da 100644
--- a/test/CodeGen/PowerPC/sjlj.ll
+++ b/test/CodeGen/PowerPC/sjlj.ll
@@ -57,8 +57,12 @@
%3 = load i32* %retval
ret i32 %3
+; FIXME: We should be saving VRSAVE on Darwin, but we're not!
+
; CHECK: @main
; CHECK: std
+; Make sure that we're not saving VRSAVE on non-Darwin:
+; CHECK-NOT: mfspr
; CHECK: stfd
; CHECK: stvx