xref: /llvm-project/llvm/test/Transforms/WholeProgramDevirt/uniform-retval-invoke.ll (revision 0ecf7965929c4477c8b9821c68e0ad66b012d8fe)
1; RUN: opt -S -passes=wholeprogramdevirt -whole-program-visibility %s | FileCheck %s
2
3target datalayout = "e-p:64:64"
4target triple = "x86_64-unknown-linux-gnu"
5
6@vt1 = constant [1 x ptr] [ptr @vf1], !type !0
7@vt2 = constant [1 x ptr] [ptr @vf2], !type !0
8
9define i32 @vf1(ptr %this) readnone {
10  ret i32 123
11}
12
13define i32 @vf2(ptr %this) readnone {
14  ret i32 123
15}
16
17; CHECK: define i32 @call
18define i32 @call(ptr %obj) personality ptr undef {
19  %vtable = load ptr, ptr %obj
20  %p = call i1 @llvm.type.test(ptr %vtable, metadata !"typeid")
21  call void @llvm.assume(i1 %p)
22  %fptr = load ptr, ptr %vtable
23  ; CHECK: br label %[[RET:[0-9A-Za-z]*]]
24  %result = invoke i32 %fptr(ptr %obj) to label %ret unwind label %unwind
25
26unwind:
27  %x = landingpad i32 cleanup
28  unreachable
29
30ret:
31  ; CHECK: [[RET]]:
32  ; CHECK-NEXT: ret i32 123
33  ret i32 %result
34}
35
36declare i1 @llvm.type.test(ptr, metadata)
37declare void @llvm.assume(i1)
38
39!0 = !{i32 0, !"typeid"}
40