| ; RUN: opt -S -passes=wholeprogramdevirt -whole-program-visibility %s | FileCheck %s |
| |
| target datalayout = "e-p:64:64" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| @vt2 = constant [3 x i8*] [ |
| i8* bitcast (i1 (i8*)* @vf1i1 to i8*), |
| i8* bitcast (i1 (i8*)* @vf0i1 to i8*), |
| i8* bitcast (i32 (i8*)* @vf2i32 to i8*) |
| ], !type !0 |
| |
| define i1 @vf0i1(i8* %this) readnone { |
| ret i1 0 |
| } |
| |
| define i1 @vf1i1(i8* %this) readnone { |
| ret i1 1 |
| } |
| |
| define i32 @vf2i32(i8* %this) readnone { |
| ret i32 2 |
| } |
| |
| ; CHECK: define i1 @call1( |
| define i1 @call1(i8* %obj) { |
| %vtableptr = bitcast i8* %obj to [3 x i8*]** |
| %vtable = load [3 x i8*]*, [3 x i8*]** %vtableptr |
| %vtablei8 = bitcast [3 x i8*]* %vtable to i8* |
| %p = call i1 @llvm.type.test(i8* %vtablei8, metadata !"typeid") |
| call void @llvm.assume(i1 %p) |
| %p2 = call i1 @llvm.type.test(i8* %vtablei8, metadata !"typeid") |
| call void @llvm.assume(i1 %p2) |
| %fptrptr = getelementptr [3 x i8*], [3 x i8*]* %vtable, i32 0, i32 0 |
| %fptr = load i8*, i8** %fptrptr |
| %fptr_casted = bitcast i8* %fptr to i1 (i8*)* |
| %result = call i1 %fptr_casted(i8* %obj) |
| ret i1 %result |
| } |
| |
| declare i1 @llvm.type.test(i8*, metadata) |
| declare void @llvm.assume(i1) |
| |
| !0 = !{i32 0, !"typeid"} |
