| Michael Kuperstein | be8032c | 2014-12-23 11:33:41 +0000 | [diff] [blame] | 1 | ; RUN: opt < %s -instcombine -S | FileCheck %s |
| 2 | |
| 3 | target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" |
| 4 | target triple = "x86_64-pc-windows-msvc" |
| 5 | |
| 6 | %class.A = type { i32 (...)** } |
| 7 | |
| 8 | @0 = constant [1 x i8*] zeroinitializer |
| 9 | |
| 10 | @vtbl = alias getelementptr inbounds ([1 x i8*]* @0, i32 0, i32 0) |
| 11 | |
| 12 | define i32 (%class.A*)* @test() { |
| 13 | ; CHECK-LABEL: test |
| 14 | entry: |
| 15 | br i1 undef, label %for.body, label %for.end |
| 16 | |
| 17 | for.body: ; preds = %for.body, %entry |
| 18 | br i1 undef, label %for.body, label %for.end |
| 19 | |
| 20 | for.end: ; preds = %for.body, %entry |
| 21 | %A = phi i32 (%class.A*)** [ bitcast (i8** @vtbl to i32 (%class.A*)**), %for.body ], [ null, %entry ] |
| David Blaikie | a79ac14 | 2015-02-27 21:17:42 +0000 | [diff] [blame^] | 22 | %B = load i32 (%class.A*)*, i32 (%class.A*)** %A |
| Michael Kuperstein | be8032c | 2014-12-23 11:33:41 +0000 | [diff] [blame] | 23 | ret i32 (%class.A*)* %B |
| 24 | } |