| Peter Collingbourne | 8786754 | 2016-12-09 01:10:11 +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 | |
| 6 | %vtTy = type { [2 x void (i8*)*], [2 x void (i8*)*] } |
| 7 | |
| 8 | @vt = constant %vtTy { [2 x void (i8*)*] [void (i8*)* null, void (i8*)* @vf1], [2 x void (i8*)*] [void (i8*)* null, void (i8*)* @vf2] }, !type !0, !type !1 |
| 9 | |
| 10 | define void @vf1(i8* %this) { |
| 11 | ret void |
| 12 | } |
| 13 | |
| 14 | define void @vf2(i8* %this) { |
| 15 | ret void |
| 16 | } |
| 17 | |
| 18 | ; CHECK: define void @call1 |
| 19 | define void @call1(i8* %obj) { |
| 20 | %vtableptr = bitcast i8* %obj to [1 x i8*]** |
| 21 | %vtable = load [1 x i8*]*, [1 x i8*]** %vtableptr |
| 22 | %vtablei8 = bitcast [1 x i8*]* %vtable to i8* |
| 23 | %p = call i1 @llvm.type.test(i8* %vtablei8, metadata !"typeid1") |
| 24 | call void @llvm.assume(i1 %p) |
| 25 | %fptrptr = getelementptr [1 x i8*], [1 x i8*]* %vtable, i32 0, i32 0 |
| 26 | %fptr = load i8*, i8** %fptrptr |
| 27 | %fptr_casted = bitcast i8* %fptr to void (i8*)* |
| 28 | ; CHECK: call void @vf1( |
| 29 | call void %fptr_casted(i8* %obj) |
| 30 | ret void |
| 31 | } |
| 32 | |
| 33 | ; CHECK: define void @call2 |
| 34 | define void @call2(i8* %obj) { |
| 35 | %vtableptr = bitcast i8* %obj to [1 x i8*]** |
| 36 | %vtable = load [1 x i8*]*, [1 x i8*]** %vtableptr |
| 37 | %vtablei8 = bitcast [1 x i8*]* %vtable to i8* |
| 38 | %p = call i1 @llvm.type.test(i8* %vtablei8, metadata !"typeid2") |
| 39 | call void @llvm.assume(i1 %p) |
| 40 | %fptrptr = getelementptr [1 x i8*], [1 x i8*]* %vtable, i32 0, i32 0 |
| 41 | %fptr = load i8*, i8** %fptrptr |
| 42 | %fptr_casted = bitcast i8* %fptr to void (i8*)* |
| 43 | ; CHECK: call void @vf2( |
| 44 | call void %fptr_casted(i8* %obj) |
| 45 | ret void |
| 46 | } |
| 47 | |
| 48 | declare i1 @llvm.type.test(i8*, metadata) |
| 49 | declare void @llvm.assume(i1) |
| 50 | |
| 51 | !0 = !{i32 8, !"typeid1"} |
| 52 | !1 = !{i32 24, !"typeid2"} |