1; RUN: opt -function-specialization -func-specialization-size-threshold=3 -S < %s | FileCheck %s
2
3define i64 @main(i64 %x, i1 %flag) {
4;
5; CHECK-LABEL: @main(i64 %x, i1 %flag) {
6; CHECK:      entry:
7; CHECK-NEXT:   br i1 %flag, label %plus, label %minus
8; CHECK:      plus:
9; CHECK-NEXT:   [[TMP0:%.+]] = call i64 @compute.1(i64 %x, i64 (i64)* @plus)
10; CHECK-NEXT:   br label %merge
11; CHECK:      minus:
12; CHECK-NEXT:   [[TMP1:%.+]] = call i64 @compute.2(i64 %x, i64 (i64)* @minus)
13; CHECK-NEXT:   br label %merge
14; CHECK:      merge:
15; CHECK-NEXT:   [[TMP2:%.+]] = phi i64 [ [[TMP0]], %plus ], [ [[TMP1]], %minus ]
16; CHECK-NEXT:   ret i64 [[TMP2]]
17; CHECK-NEXT: }
18;
19entry:
20  br i1 %flag, label %plus, label %minus
21
22plus:
23  %tmp0 = call i64 @compute(i64 %x, i64 (i64)* @plus)
24  br label %merge
25
26minus:
27  %tmp1 = call i64 @compute(i64 %x, i64 (i64)* @minus)
28  br label %merge
29
30merge:
31  %tmp2 = phi i64 [ %tmp0, %plus ], [ %tmp1, %minus]
32  ret i64 %tmp2
33}
34
35; CHECK-LABEL: define internal i64 @compute.1(i64 %x, i64 (i64)* %binop) {
36; CHECK-NEXT:  entry:
37; CHECK-NEXT:    [[TMP0:%.+]] = call i64 @plus(i64 %x)
38; CHECK-NEXT:    ret i64 [[TMP0]]
39; CHECK-NEXT:  }
40;
41; CHECK-LABEL: define internal i64 @compute.2(i64 %x, i64 (i64)* %binop) {
42; CHECK-NEXT:  entry:
43; CHECK-NEXT:    [[TMP0:%.+]] = call i64 @minus(i64 %x)
44; CHECK-NEXT:    ret i64 [[TMP0]]
45; CHECK-NEXT:  }
46;
47define internal i64 @compute(i64 %x, i64 (i64)* %binop) {
48entry:
49  %tmp0 = call i64 %binop(i64 %x)
50  ret i64 %tmp0
51}
52
53define internal i64 @plus(i64 %x) {
54entry:
55  %tmp0 = add i64 %x, 1
56  ret i64 %tmp0
57}
58
59define internal i64 @minus(i64 %x) {
60entry:
61  %tmp0 = sub i64 %x, 1
62  ret i64 %tmp0
63}
64