Imported Upstream version 5.18.0.247

Former-commit-id: 2d6af2e4ed0eda5cbdc2946446ef7718456ad190

external/llvm/test/Transforms/ADCE/domtree-DoubleDeletion.ll

@@ -1,39 +0,0 @@
-; RUN: opt < %s -gvn -simplifycfg -adce | llvm-dis
-; RUN: opt < %s -gvn -simplifycfg -adce -verify-dom-info | llvm-dis
-
-; This test makes sure that the DominatorTree properly handles
-; deletion of edges that go to forward-unreachable regions.
-; In this case, %land.end is already forward unreachable when
-; the DT gets informed about the deletion of %entry -> %land.end.
-
-@a = common global i32 0, align 4
-
-define i32 @main() {
-entry:
-  %retval = alloca i32, align 4
-  store i32 0, i32* %retval, align 4
-  %0 = load i32, i32* @a, align 4
-  %cmp = icmp ne i32 %0, 1
-  br i1 %cmp, label %land.rhs, label %land.end4
-
-land.rhs:                                         ; preds = %entry
-  %1 = load i32, i32* @a, align 4
-  %tobool = icmp ne i32 %1, 0
-  br i1 %tobool, label %land.rhs1, label %land.end
-
-land.rhs1:                                        ; preds = %land.rhs
-  br label %land.end
-
-land.end:                                         ; preds = %land.rhs1, %land.rhs
-  %2 = phi i1 [ false, %land.rhs ], [ true, %land.rhs1 ]
-  %land.ext = zext i1 %2 to i32
-  %conv = trunc i32 %land.ext to i16
-  %conv2 = sext i16 %conv to i32
-  %tobool3 = icmp ne i32 %conv2, 0
-  br label %land.end4
-
-land.end4:                                        ; preds = %land.end, %entry
-  %3 = phi i1 [ false, %entry ], [ %tobool3, %land.end ]
-  %land.ext5 = zext i1 %3 to i32
-  ret i32 0
-}