From f341dacb23537444720b07277f7e8c9402571c45 Mon Sep 17 00:00:00 2001
From: Bill Wendling <isanbard@gmail.com>
Date: Fri, 19 Apr 2013 18:16:06 +0000
Subject: [PATCH] Add test to make sure that a int-to-ptr can be merged
 correctly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179869 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/Transforms/MergeFunc/inttoptr.ll | 55 +++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 test/Transforms/MergeFunc/inttoptr.ll

diff --git a/test/Transforms/MergeFunc/inttoptr.ll b/test/Transforms/MergeFunc/inttoptr.ll
new file mode 100644
index 00000000000..12809a10d35
--- /dev/null
+++ b/test/Transforms/MergeFunc/inttoptr.ll
@@ -0,0 +1,55 @@
+; RUN: opt -mergefunc -S < %s | FileCheck %s
+; PR15185
+target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32-n8:16:32-S128"
+target triple = "i386-pc-linux-gnu"
+
+%.qux.2496 = type { i32, %.qux.2497 }
+%.qux.2497 = type { i8, i32 }
+%.qux.2585 = type { i32, i32, i8* }
+
+@g2 = external unnamed_addr constant [9 x i8], align 1
+@g3 = internal hidden unnamed_addr constant [1 x i8*] [i8* bitcast (i8* (%.qux.2585*)* @func35 to i8*)]
+
+define internal hidden i32 @func1(i32* %ptr, { i32, i32 }* nocapture %method) align 2 {
+bb:
+  br label %bb1
+
+bb1:                                              ; preds = %bb
+  br label %bb2
+
+bb2:                                              ; preds = %bb1
+  ret i32 undef
+}
+
+define internal hidden i32 @func10(%.qux.2496* nocapture %this) align 2 {
+bb:
+  %tmp = getelementptr inbounds %.qux.2496* %this, i32 0, i32 1, i32 1
+  %tmp1 = load i32* %tmp, align 4
+  ret i32 %tmp1
+}
+
+define internal hidden i8* @func29(i32* nocapture %this) align 2 {
+bb:
+  ret i8* getelementptr inbounds ([9 x i8]* @g2, i32 0, i32 0)
+}
+
+define internal hidden i32* @func33(%.qux.2585* nocapture %this) align 2 {
+bb:
+  ret i32* undef
+}
+
+define internal hidden i32* @func34(%.qux.2585* nocapture %this) align 2 {
+bb:
+  %tmp = getelementptr inbounds %.qux.2585* %this, i32 0
+  ret i32* undef
+}
+
+define internal hidden i8* @func35(%.qux.2585* nocapture %this) align 2 {
+bb:
+; CHECK: %2 = bitcast %.qux.2585* %0 to %.qux.2496*
+; CHECK: %3 = tail call i32 @func10(%.qux.2496* %2)
+; CHECK: %4 = inttoptr i32 %3 to i8*
+  %tmp = getelementptr inbounds %.qux.2585* %this, i32 0, i32 2
+  %tmp1 = load i8** %tmp, align 4
+  ret i8* %tmp1
+}