| Peter Collingbourne | df49d1b | 2016-02-09 22:50:34 +0000 | [diff] [blame] | 1 | ; RUN: opt -S -wholeprogramdevirt %s | FileCheck %s |
| 2 | |
| 3 | target datalayout = "e-p:64:64" |
| 4 | target triple = "x86_64-unknown-linux-gnu" |
| 5 | |
| Peter Collingbourne | 7efd750 | 2016-06-24 21:21:32 +0000 | [diff] [blame] | 6 | @vt = constant i8* bitcast (void (i8*)* @vf to i8*), !type !0 |
| Peter Collingbourne | df49d1b | 2016-02-09 22:50:34 +0000 | [diff] [blame] | 7 | |
| 8 | define void @vf(i8* %this) { |
| 9 | ret void |
| 10 | } |
| 11 | |
| 12 | ; CHECK: define void @call |
| 13 | define void @call(i8* %obj) { |
| 14 | %vtableptr = bitcast i8* %obj to [1 x i8*]** |
| 15 | %vtable = load [1 x i8*]*, [1 x i8*]** %vtableptr |
| 16 | %vtablei8 = bitcast [1 x i8*]* %vtable to i8* |
| Peter Collingbourne | 7efd750 | 2016-06-24 21:21:32 +0000 | [diff] [blame] | 17 | %p = call i1 @llvm.type.test(i8* %vtablei8, metadata !"typeid") |
| Peter Collingbourne | df49d1b | 2016-02-09 22:50:34 +0000 | [diff] [blame] | 18 | call void @llvm.assume(i1 %p) |
| 19 | %fptrptr = getelementptr [1 x i8*], [1 x i8*]* %vtable, i32 0, i32 0 |
| 20 | %fptr = load i8*, i8** %fptrptr |
| 21 | %fptr_casted = bitcast i8* %fptr to void (i8*)* |
| Peter Collingbourne | 8786754 | 2016-12-09 01:10:11 +0000 | [diff] [blame] | 22 | ; CHECK: call void @vf( |
| Peter Collingbourne | df49d1b | 2016-02-09 22:50:34 +0000 | [diff] [blame] | 23 | call void %fptr_casted(i8* %obj) |
| 24 | ret void |
| 25 | } |
| 26 | |
| Peter Collingbourne | 7efd750 | 2016-06-24 21:21:32 +0000 | [diff] [blame] | 27 | declare i1 @llvm.type.test(i8*, metadata) |
| Peter Collingbourne | df49d1b | 2016-02-09 22:50:34 +0000 | [diff] [blame] | 28 | declare void @llvm.assume(i1) |
| 29 | |
| Peter Collingbourne | 7efd750 | 2016-06-24 21:21:32 +0000 | [diff] [blame] | 30 | !0 = !{i32 0, !"typeid"} |