Imported Upstream version 5.18.0.246

Former-commit-id: 0c7ce5b1a7851e13f22acfd379b7f9fb304e4833

external/llvm/test/Transforms/IndVarSimplify/2004-03-10-PHIInsertionBug.ll

@@ -0,0 +1,26 @@
+; RUN: opt < %s -indvars -disable-output
+
+define void @test() {
+        br label %endif.0.i
+
+endif.0.i:              ; preds = %0
+        br i1 false, label %then.3.i, label %endif.3.i
+
+then.3.i:               ; preds = %endif.0.i
+        br label %endif.3.i
+
+endif.3.i:              ; preds = %then.3.i, %endif.0.i
+        %inxm.0.i = phi i32 [ 8, %then.3.i ], [ 0, %endif.0.i ]         ; <i32> [#uses=1]
+        %doinner.1.i = phi i32 [ 0, %then.3.i ], [ 0, %endif.0.i ]              ; <i32> [#uses=0]
+        br label %loopentry.2.i
+
+loopentry.2.i:          ; preds = %no_exit.2.i, %endif.3.i
+        %inxk.0.i = phi i32 [ %tmp.210.i, %no_exit.2.i ], [ 0, %endif.3.i ]             ; <i32> [#uses=1]
+        br label %no_exit.2.i
+
+no_exit.2.i:            ; preds = %loopentry.2.i
+        %tmp.210.i = sub i32 %inxk.0.i, %inxm.0.i               ; <i32> [#uses=2]
+        %tmp.213.i = add i32 %tmp.210.i, 0              ; <i32> [#uses=0]
+        br label %loopentry.2.i
+}
+