vendor/llvm/llvm-r126079

1 files changed, 28 insertions, 0 deletions

diff --git a/test/Transforms/LoopUnswitch/2010-11-18-LCSSA.ll b/test/Transforms/LoopUnswitch/2010-11-18-LCSSA.ll
new file mode 100644
index 000000000000..a976d18d4445
--- /dev/null
+++ b/test/Transforms/LoopUnswitch/2010-11-18-LCSSA.ll
@@ -0,0 +1,28 @@
+; RUN: opt < %s -loop-unswitch
+; PR8622
+@g_38 = external global i32, align 4
+
+define void @func_67(i32 %p_68.coerce) nounwind {
+entry:
+  br i1 true, label %for.end12, label %bb.nph
+
+bb.nph:                                           ; preds = %entry
+  %g_38.promoted = load i32* @g_38
+  br label %for.body
+
+for.body:                                         ; preds = %for.cond, %bb.nph
+  %tobool.i = icmp eq i32 %p_68.coerce, 1
+  %xor4.i = xor i32 %p_68.coerce, 1
+  %call1 = select i1 %tobool.i, i32 0, i32 %xor4.i
+  br label %for.cond
+
+for.cond:                                         ; preds = %for.body
+  br i1 true, label %for.cond.for.end12_crit_edge, label %for.body
+
+for.cond.for.end12_crit_edge:                     ; preds = %for.cond
+  store i32 %call1, i32* @g_38
+  br label %for.end12
+
+for.end12:                                        ; preds = %for.cond.for.end12_crit_edge, %entry
+  ret void
+}