xref: /llvm-project/llvm/test/Feature/OperandBundles/inliner-funclet-wineh.ll (revision 6e222fbf6ec757944e4a83a4903712f7ada88f6b)
1; RUN: opt -S -passes=always-inline -mtriple=x86_64-windows-msvc < %s | FileCheck %s
2
3; WinEH requires funclet tokens on nounwind intrinsics if they can lower to
4; regular function calls in the course of IR transformations.
5;
6; Test that the inliner propagates funclet tokens to such intrinsics when
7; inlining into EH funclets, i.e.: llvm.objc.storeStrong inherits the "funclet"
8; token from inlined_fn.
9
10define void @inlined_fn(ptr %ex) #1 {
11entry:
12  call void @llvm.objc.storeStrong(ptr %ex, ptr null)
13  ret void
14}
15
16define void @test_catch_with_inline() personality ptr @__CxxFrameHandler3 {
17entry:
18  %exn.slot = alloca ptr, align 8
19  %ex = alloca ptr, align 8
20  invoke void @opaque() to label %invoke.cont unwind label %catch.dispatch
21
22catch.dispatch:
23  %0 = catchswitch within none [label %catch] unwind to caller
24
25invoke.cont:
26  unreachable
27
28catch:
29  %1 = catchpad within %0 [ptr null, i32 64, ptr %exn.slot]
30  call void @inlined_fn(ptr %ex) [ "funclet"(token %1) ]
31  catchret from %1 to label %catchret.dest
32
33catchret.dest:
34  ret void
35}
36
37declare void @opaque()
38declare void @llvm.objc.storeStrong(ptr, ptr) #0
39declare i32 @__CxxFrameHandler3(...)
40
41attributes #0 = { nounwind }
42attributes #1 = { alwaysinline }
43
44; After inlining, llvm.objc.storeStrong inherited the "funclet" token:
45;
46;   CHECK-LABEL:  define void @test_catch_with_inline()
47;                   ...
48;   CHECK:        catch:
49;   CHECK-NEXT:     %1 = catchpad within %0 [ptr null, i32 64, ptr %exn.slot]
50;   CHECK-NEXT:     call void @llvm.objc.storeStrong(ptr %ex, ptr null) [ "funclet"(token %1) ]
51;   CHECK-NEXT:     catchret from %1 to label %catchret.dest
52