Unreachable block is not a root node in post dominator tree.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40458 91177308-0d34-0410-b5e6-96231b3b80d8
2026-04-26 12:20:42 +00:00 · 2007-07-24 01:02:25 +00:00
parent a7f98e2919
commit 62e279bbdb
2 changed files with 19 additions and 2 deletions
@@ -0,0 +1,13 @@
+; RUN: llvm-as < %s |   opt -adce | llvm-dis | grep switch
+; PR 1564
+  
+define fastcc void @out() {
+    start:
+            br label %loop
+    unreachable:
+            unreachable
+    loop:
+            switch i32 0, label %unreachable [
+                     i32 0, label %loop
+            ]
+}