Fix PR3138: if we merge the entry block into another block, make sure to

move the other block back up into the entry position! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60179 91177308-0d34-0410-b5e6-96231b3b80d8
2026-04-25 05:22:04 +00:00 · 2008-11-27 19:25:19 +00:00
parent a89d102b32
commit 3d86d242c6
2 changed files with 19 additions and 0 deletions
@@ -0,0 +1,13 @@
+; RUN: llvm-as < %s  | opt -jump-threading -simplifycfg | llvm-dis | grep {ret i32 0}
+; PR3138
+
+define i32 @jt() {
+entry:
+       br i1 true, label %bb3, label %bb
+
+bb:             ; preds = %entry
+       unreachable
+
+bb3:            ; preds = %entry
+       ret i32 0
+}