Revert "ARM-Darwin: keep the frame register reserved even if not updated."

This reverts commit a7d90af1be48234ce583e00fb16e33633d44ae38.

This revision came back as the root-cause for crashes in internal
ARM-IOS apps.
Reproducer in https://bugs.llvm.org/show_bug.cgi?id=44231.

1 files changed, 0 insertions, 15 deletions

diff --git a/llvm/test/CodeGen/ARM/r7-fixed-darwin.ll b/llvm/test/CodeGen/ARM/r7-fixed-darwin.ll
deleted file mode 100644
index dc59b6acb42..00000000000
--- a/llvm/test/CodeGen/ARM/r7-fixed-darwin.ll
+++ /dev/null
@@ -1,15 +0,0 @@
-; RUN: llc -mtriple=thumbv7k-apple-watchos %s -o - | FileCheck %s
-
-; r7 is FP on Darwin, and should be preserved even if we don't create a new
-; frame record for this leaf function. So make huge register pressure to try &
-; tempt LLVM to use it.
-define void @foo([16 x i32]* %ptr) {
-; CHECK-LABEL: foo:
-; CHECK: push.w
-; CHECK: .cfi_offset r7
-; CHECK-NOT: r7
-; CHECK: pop.w
-  %val = load volatile [16 x i32], [16 x i32]* %ptr
-  store volatile [16 x i32] %val, [16 x i32]* %ptr
-  ret void
-}