From 5e27a1d468e27253d6a19bdc99b445eaf8f86a6e Mon Sep 17 00:00:00 2001
From: Jay Foad <jay.foad@gmail.com>
Date: Mon, 20 Jun 2011 14:46:47 +0000
Subject: [PATCH] This is an automatically reduced test case that crashed in
 GVN, at some point during the development of the phi operand changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133436 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/Transforms/GVN/2011-04-27-phioperands.ll | 106 ++++++++++++++++++
 1 file changed, 106 insertions(+)
 create mode 100644 test/Transforms/GVN/2011-04-27-phioperands.ll

diff --git a/test/Transforms/GVN/2011-04-27-phioperands.ll b/test/Transforms/GVN/2011-04-27-phioperands.ll
new file mode 100644
index 00000000000..6e5075db7c8
--- /dev/null
+++ b/test/Transforms/GVN/2011-04-27-phioperands.ll
@@ -0,0 +1,106 @@
+; RUN: opt %s -gvn -disable-output
+
+target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-f128:128:128-n8:16:32:64"
+
+@nuls = external global [10 x i8]
+
+define fastcc void @p_ere() nounwind {
+entry:
+  br label %"<bb 5>"
+
+"<L18>.i":
+  br i1 undef, label %"<bb 3>.i30.i", label %doemit.exit51.i
+
+"<bb 3>.i30.i":
+  unreachable
+
+doemit.exit51.i:
+  br label %"<bb 53>.i"
+
+"<L19>.i":
+  br i1 undef, label %"<bb 3>.i55.i", label %doemit.exit76.i
+
+"<bb 3>.i55.i":
+  unreachable
+
+doemit.exit76.i:
+  br label %"<bb 53>.i"
+
+"<L98>.i":
+  store i8* getelementptr inbounds ([10 x i8]* @nuls, i64 0, i64 0), i8** undef, align 8
+  br label %"<bb 53>.i"
+
+"<L99>.i":
+  br label %"<bb 53>.i"
+
+"<L24>.i":
+  br i1 undef, label %"<bb 53>.i", label %"<bb 35>.i"
+
+"<bb 35>.i":
+  br label %"<bb 53>.i"
+
+"<L28>.i":
+  br label %"<bb 53>.i"
+
+"<L29>.i":
+  br label %"<bb 53>.i"
+
+"<L39>.i":
+  br label %"<bb 53>.i"
+
+"<bb 53>.i":
+  %wascaret_2.i = phi i32 [ 0, %"<L39>.i" ], [ 0, %"<L29>.i" ], [ 0, %"<L28>.i" ], [ 0, %"<bb 35>.i" ], [ 0, %"<L99>.i" ], [ 0, %"<L98>.i" ], [ 0, %doemit.exit76.i ], [ 1, %doemit.exit51.i ], [ 0, %"<L24>.i" ]
+  %D.5496_84.i = load i8** undef, align 8
+  br i1 undef, label %"<bb 54>.i", label %"<bb 5>"
+
+"<bb 54>.i":
+  br i1 undef, label %"<bb 5>", label %"<bb 58>.i"
+
+"<bb 58>.i":
+  br i1 undef, label %"<bb 64>.i", label %"<bb 59>.i"
+
+"<bb 59>.i":
+  br label %"<bb 64>.i"
+
+"<bb 64>.i":
+  switch i32 undef, label %"<bb 5>" [
+    i32 42, label %"<L54>.i"
+    i32 43, label %"<L55>.i"
+    i32 63, label %"<L56>.i"
+    i32 123, label %"<bb 5>.i258.i"
+  ]
+
+"<L54>.i":
+  br i1 undef, label %"<bb 3>.i105.i", label %doemit.exit127.i
+
+"<bb 3>.i105.i":
+  unreachable
+
+doemit.exit127.i:
+  unreachable
+
+"<L55>.i":
+  br i1 undef, label %"<bb 3>.i157.i", label %"<bb 5>"
+
+"<bb 3>.i157.i":
+  unreachable
+
+"<L56>.i":
+  br label %"<bb 5>"
+
+"<bb 5>.i258.i":
+  unreachable
+
+"<bb 5>":
+  switch i32 undef, label %"<L39>.i" [
+    i32 36, label %"<L19>.i"
+    i32 94, label %"<L18>.i"
+    i32 124, label %"<L98>.i"
+    i32 42, label %"<L99>.i"
+    i32 43, label %"<L99>.i"
+    i32 46, label %"<L24>.i"
+    i32 63, label %"<L99>.i"
+    i32 91, label %"<L28>.i"
+    i32 92, label %"<L29>.i"
+  ]
+}