| 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 | 58c90c0 | 2017-02-09 01:48:24 +0000 | [diff] [blame] | 6 | @vt1 = constant [2 x i8*] [i8* zeroinitializer, i8* bitcast (void (i8*)* @vf to i8*)], !type !0 |
| 7 | @vt2 = constant i8* bitcast (void (i8*)* @vf to i8*), !type !1 |
| Peter Collingbourne | df49d1b | 2016-02-09 22:50:34 +0000 | [diff] [blame] | 8 | |
| 9 | define void @vf(i8* %this) { |
| 10 | ret void |
| 11 | } |
| 12 | |
| Peter Collingbourne | 8786754 | 2016-12-09 01:10:11 +0000 | [diff] [blame] | 13 | ; CHECK: define void @unaligned1 |
| 14 | define void @unaligned1(i8* %obj) { |
| Peter Collingbourne | df49d1b | 2016-02-09 22:50:34 +0000 | [diff] [blame] | 15 | %vtableptr = bitcast i8* %obj to [1 x i8*]** |
| 16 | %vtable = load [1 x i8*]*, [1 x i8*]** %vtableptr |
| 17 | %vtablei8 = bitcast [1 x i8*]* %vtable to i8* |
| Peter Collingbourne | 7efd750 | 2016-06-24 21:21:32 +0000 | [diff] [blame] | 18 | %p = call i1 @llvm.type.test(i8* %vtablei8, metadata !"typeid") |
| Peter Collingbourne | df49d1b | 2016-02-09 22:50:34 +0000 | [diff] [blame] | 19 | call void @llvm.assume(i1 %p) |
| 20 | %fptrptr = getelementptr i8, i8* %vtablei8, i32 1 |
| 21 | %fptrptr_casted = bitcast i8* %fptrptr to i8** |
| 22 | %fptr = load i8*, i8** %fptrptr_casted |
| 23 | %fptr_casted = bitcast i8* %fptr to void (i8*)* |
| 24 | ; CHECK: call void % |
| 25 | call void %fptr_casted(i8* %obj) |
| 26 | ret void |
| 27 | } |
| 28 | |
| Peter Collingbourne | 8786754 | 2016-12-09 01:10:11 +0000 | [diff] [blame] | 29 | ; CHECK: define void @unaligned2 |
| 30 | define void @unaligned2(i8* %obj) { |
| 31 | %vtableptr = bitcast i8* %obj to [1 x i8*]** |
| 32 | %vtable = load [1 x i8*]*, [1 x i8*]** %vtableptr |
| 33 | %vtablei8 = bitcast [1 x i8*]* %vtable to i8* |
| 34 | %p = call i1 @llvm.type.test(i8* %vtablei8, metadata !"typeid2") |
| 35 | call void @llvm.assume(i1 %p) |
| 36 | %fptrptr = getelementptr i8, i8* %vtablei8, i32 1 |
| 37 | %fptrptr_casted = bitcast i8* %fptrptr to i8** |
| 38 | %fptr = load i8*, i8** %fptrptr_casted |
| 39 | %fptr_casted = bitcast i8* %fptr to void (i8*)* |
| 40 | ; CHECK: call void % |
| 41 | call void %fptr_casted(i8* %obj) |
| 42 | ret void |
| 43 | } |
| 44 | |
| Peter Collingbourne | df49d1b | 2016-02-09 22:50:34 +0000 | [diff] [blame] | 45 | ; CHECK: define void @outofbounds |
| 46 | define void @outofbounds(i8* %obj) { |
| 47 | %vtableptr = bitcast i8* %obj to [1 x i8*]** |
| 48 | %vtable = load [1 x i8*]*, [1 x i8*]** %vtableptr |
| 49 | %vtablei8 = bitcast [1 x i8*]* %vtable to i8* |
| Peter Collingbourne | 7efd750 | 2016-06-24 21:21:32 +0000 | [diff] [blame] | 50 | %p = call i1 @llvm.type.test(i8* %vtablei8, metadata !"typeid") |
| Peter Collingbourne | df49d1b | 2016-02-09 22:50:34 +0000 | [diff] [blame] | 51 | call void @llvm.assume(i1 %p) |
| 52 | %fptrptr = getelementptr i8, i8* %vtablei8, i32 16 |
| 53 | %fptrptr_casted = bitcast i8* %fptrptr to i8** |
| 54 | %fptr = load i8*, i8** %fptrptr_casted |
| 55 | %fptr_casted = bitcast i8* %fptr to void (i8*)* |
| 56 | ; CHECK: call void % |
| 57 | call void %fptr_casted(i8* %obj) |
| 58 | ret void |
| 59 | } |
| 60 | |
| 61 | ; CHECK: define void @nonfunction |
| 62 | define void @nonfunction(i8* %obj) { |
| 63 | %vtableptr = bitcast i8* %obj to [1 x i8*]** |
| 64 | %vtable = load [1 x i8*]*, [1 x i8*]** %vtableptr |
| 65 | %vtablei8 = bitcast [1 x i8*]* %vtable to i8* |
| Peter Collingbourne | 7efd750 | 2016-06-24 21:21:32 +0000 | [diff] [blame] | 66 | %p = call i1 @llvm.type.test(i8* %vtablei8, metadata !"typeid") |
| Peter Collingbourne | df49d1b | 2016-02-09 22:50:34 +0000 | [diff] [blame] | 67 | call void @llvm.assume(i1 %p) |
| 68 | %fptrptr = getelementptr i8, i8* %vtablei8, i32 0 |
| 69 | %fptrptr_casted = bitcast i8* %fptrptr to i8** |
| 70 | %fptr = load i8*, i8** %fptrptr_casted |
| 71 | %fptr_casted = bitcast i8* %fptr to void (i8*)* |
| 72 | ; CHECK: call void % |
| 73 | call void %fptr_casted(i8* %obj) |
| 74 | ret void |
| 75 | } |
| 76 | |
| Peter Collingbourne | 7efd750 | 2016-06-24 21:21:32 +0000 | [diff] [blame] | 77 | declare i1 @llvm.type.test(i8*, metadata) |
| Peter Collingbourne | df49d1b | 2016-02-09 22:50:34 +0000 | [diff] [blame] | 78 | declare void @llvm.assume(i1) |
| 79 | |
| Peter Collingbourne | 7efd750 | 2016-06-24 21:21:32 +0000 | [diff] [blame] | 80 | !0 = !{i32 0, !"typeid"} |
| Peter Collingbourne | 8786754 | 2016-12-09 01:10:11 +0000 | [diff] [blame] | 81 | !1 = !{i32 0, !"typeid2"} |