ARM: fix folding stack adjustment (again again again...)
This time, the issue is that we weren't accounting for the possibility that
aligned DPRs could have been stored after the final "push" in a prologue. When
that happened we effectively moved a "sub sp, #N" from below the aligned stores
to above them, and everything went to pot.
To make it worse, I'd actually committed something testing that we produced
wrong code, so the test update is tiny.
llvm-svn: 248437
diff --git a/llvm/test/CodeGen/ARM/fold-stack-adjust.ll b/llvm/test/CodeGen/ARM/fold-stack-adjust.ll
index 614966d..5bec644 100644
--- a/llvm/test/CodeGen/ARM/fold-stack-adjust.ll
+++ b/llvm/test/CodeGen/ARM/fold-stack-adjust.ll
@@ -67,11 +67,12 @@
; iOS uses aligned NEON stores here, which is convenient since we
; want to make sure that works too.
; CHECK-IOS-LABEL: check_vfp_fold:
-; CHECK-IOS: push {r0, r1, r2, r3, r4, r7, lr}
+; CHECK-IOS: push {r4, r7, lr}
; CHECK-IOS: sub.w r4, sp, #16
; CHECK-IOS: bfc r4, #0, #4
; CHECK-IOS: mov sp, r4
; CHECK-IOS: vst1.64 {d8, d9}, [r4:128]
+; CHECK-IOS: sub sp, #16
; ...
; CHECK-IOS: add r4, sp, #16
; CHECK-IOS: vld1.64 {d8, d9}, [r4:128]