1; RUN: opt -function-specialization -force-function-specialization -func-specialization-max-iters=2 -inline -instcombine -S < %s | FileCheck %s --check-prefix=ITERS2
2; RUN: opt -function-specialization -force-function-specialization -func-specialization-max-iters=3 -inline -instcombine -S < %s | FileCheck %s --check-prefix=ITERS3
3; RUN: opt -function-specialization -force-function-specialization -func-specialization-max-iters=4 -inline -instcombine -S < %s | FileCheck %s --check-prefix=ITERS4
4
5@Global = internal constant i32 1, align 4
6
7define internal void @recursiveFunc(i32* nocapture readonly %arg) {
8  %temp = alloca i32, align 4
9  %arg.load = load i32, i32* %arg, align 4
10  %arg.cmp = icmp slt i32 %arg.load, 4
11  br i1 %arg.cmp, label %block6, label %ret.block
12
13block6:
14  call void @print_val(i32 %arg.load)
15  %arg.add = add nsw i32 %arg.load, 1
16  store i32 %arg.add, i32* %temp, align 4
17  call void @recursiveFunc(i32* nonnull %temp)
18  br label %ret.block
19
20ret.block:
21  ret void
22}
23
24; ITERS2:  @funcspec.arg.3 = internal constant i32 3
25; ITERS3:  @funcspec.arg.5 = internal constant i32 4
26
27define i32 @main() {
28; ITERS2-LABEL: @main(
29; ITERS2-NEXT:    call void @print_val(i32 1)
30; ITERS2-NEXT:    call void @print_val(i32 2)
31; ITERS2-NEXT:    call void @recursiveFunc(i32* nonnull @funcspec.arg.3)
32; ITERS2-NEXT:    ret i32 0
33;
34; ITERS3-LABEL: @main(
35; ITERS3-NEXT:    call void @print_val(i32 1)
36; ITERS3-NEXT:    call void @print_val(i32 2)
37; ITERS3-NEXT:    call void @print_val(i32 3)
38; ITERS3-NEXT:    call void @recursiveFunc(i32* nonnull @funcspec.arg.5)
39; ITERS3-NEXT:    ret i32 0
40;
41; ITERS4-LABEL: @main(
42; ITERS4-NEXT:    call void @print_val(i32 1)
43; ITERS4-NEXT:    call void @print_val(i32 2)
44; ITERS4-NEXT:    call void @print_val(i32 3)
45; ITERS4-NEXT:    ret i32 0
46;
47  call void @recursiveFunc(i32* nonnull @Global)
48  ret i32 0
49}
50
51declare dso_local void @print_val(i32)
52