Imported Upstream version 5.18.0.246

Former-commit-id: 0c7ce5b1a7851e13f22acfd379b7f9fb304e4833

external/llvm/test/CodeGen/ARM/invalidated-save-point.ll

@@ -0,0 +1,27 @@
+; RUN: llc -mtriple thumbv7 -stop-after=if-converter < %s 2>&1 | FileCheck %s
+
+; Make sure the save point and restore point are dropped from MFI at
+; this point. Notably, if it isn't is will be invalid and reference a
+; deleted block (%bb.-1.if.end)
+
+; CHECK: savePoint: ''
+; CHECK: restorePoint: ''
+
+target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
+target triple = "thumbv7"
+
+define i32 @f(i32 %n) {
+entry:
+  %cmp = icmp ult i32 %n, 4
+  br i1 %cmp, label %return, label %if.end
+
+if.end:
+  tail call void @g(i32 %n)
+  br label %return
+
+return:
+  %retval.0 = phi i32 [ 0, %if.end ], [ -1, %entry ]
+  ret i32 %retval.0
+}
+
+declare void @g(i32)