xref: /llvm-project/llvm/test/Transforms/Inline/frameescape.ll (revision 151602c7a9935558ca671b35359989b261045db0) 
1; RUN: opt -passes=inline -S < %s | FileCheck %s
2; RUN: opt -passes='cgscc(inline)' -S < %s | FileCheck %s
3; RUN: opt -passes='module-inline' -S < %s | FileCheck %s
4
5; PR23216: We can't inline functions using llvm.localescape.
6
7declare void @llvm.localescape(...)
8declare ptr @llvm.frameaddress(i32)
9declare ptr @llvm.localrecover(ptr, ptr, i32)
10
11define internal void @foo(ptr %fp) {
12  %a.i8 = call ptr @llvm.localrecover(ptr @bar, ptr %fp, i32 0)
13  store i32 42, ptr %a.i8
14  ret void
15}
16
17define internal i32 @bar() {
18entry:
19  %a = alloca i32
20  call void (...) @llvm.localescape(ptr %a)
21  %fp = call ptr @llvm.frameaddress(i32 0)
22  tail call void @foo(ptr %fp)
23  %r = load i32, ptr %a
24  ret i32 %r
25}
26
27; We even bail when someone marks it alwaysinline.
28define internal i32 @bar_alwaysinline() alwaysinline {
29entry:
30  %a = alloca i32
31  call void (...) @llvm.localescape(ptr %a)
32  tail call void @foo(ptr null)
33  ret i32 0
34}
35
36define i32 @bazz() {
37entry:
38  %r = tail call i32 @bar()
39  %r1 = tail call i32 @bar_alwaysinline()
40  ret i32 %r
41}
42
43; CHECK: define i32 @bazz()
44; CHECK: call i32 @bar()
45; CHECK: call i32 @bar_alwaysinline()
46