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