| ; RUN: opt -S -passes=wholeprogramdevirt -whole-program-visibility %s | FileCheck %s |
| |
| target datalayout = "e-p:64:64" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| @vt1 = constant [1 x ptr] [ptr @vf0], !type !0 |
| @vt2 = constant [1 x ptr] [ptr @vf0], !type !0, !type !1 |
| @vt3 = constant [1 x ptr] [ptr @vf1], !type !0, !type !1 |
| @vt4 = constant [1 x ptr] [ptr @vf1], !type !1 |
| |
| define i1 @vf0(ptr %this) readnone { |
| ret i1 0 |
| } |
| |
| define i1 @vf1(ptr %this) readnone { |
| ret i1 1 |
| } |
| |
| ; CHECK: define i1 @call |
| define i1 @call(ptr %obj) { |
| %vtable = load ptr, ptr %obj |
| %p = call i1 @llvm.type.test(ptr %vtable, metadata !"typeid1") |
| call void @llvm.assume(i1 %p) |
| %p2 = call i1 @llvm.type.test(ptr %vtable, metadata !"typeid1") |
| call void @llvm.assume(i1 %p2) |
| %fptr = load ptr, ptr %vtable |
| ; CHECK: [[RES1:%[^ ]*]] = icmp eq ptr %vtable, @vt3 |
| %result = call i1 %fptr(ptr %obj) |
| ; CHECK: ret i1 [[RES1]] |
| ret i1 %result |
| } |
| |
| declare i1 @llvm.type.test(ptr, metadata) |
| declare void @llvm.assume(i1) |
| |
| !0 = !{i32 0, !"typeid1"} |
| !1 = !{i32 0, !"typeid2"} |
