1; RUN: opt -function-specialization -func-specialization-avg-iters-cost=3 -S < %s | \
2; RUN:   FileCheck %s --check-prefixes=COMMON,DISABLED
3; RUN: opt -function-specialization -func-specialization-avg-iters-cost=4 -S < %s | \
4; RUN:   FileCheck %s --check-prefixes=COMMON,FORCE
5; RUN: opt -function-specialization -force-function-specialization -S < %s | \
6; RUN:   FileCheck %s --check-prefixes=COMMON,FORCE
7; RUN: opt -function-specialization -func-specialization-avg-iters-cost=3 -force-function-specialization -S < %s | \
8; RUN:   FileCheck %s --check-prefixes=COMMON,FORCE
9
10; Test for specializing a constant global.
11
12target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
13
14@A = external dso_local constant i32, align 4
15@B = external dso_local constant i32, align 4
16
17define dso_local i32 @bar(i32 %x, i32 %y) {
18; COMMON-LABEL: @bar
19; FORCE:        %call = call i32 @foo.2(i32 %x, i32* @A)
20; FORCE:        %call1 = call i32 @foo.1(i32 %y, i32* @B)
21; DISABLED-NOT: %call1 = call i32 @foo.1(
22entry:
23  %tobool = icmp ne i32 %x, 0
24  br i1 %tobool, label %if.then, label %if.else
25
26if.then:
27  %call = call i32 @foo(i32 %x, i32* @A)
28  br label %return
29
30if.else:
31  %call1 = call i32 @foo(i32 %y, i32* @B)
32  br label %return
33
34return:
35  %retval.0 = phi i32 [ %call, %if.then ], [ %call1, %if.else ]
36  ret i32 %retval.0
37}
38
39; FORCE:      define internal i32 @foo.1(i32 %x, i32* %b) {
40; FORCE-NEXT: entry:
41; FORCE-NEXT:   %0 = load i32, i32* @B, align 4
42; FORCE-NEXT:   %add = add nsw i32 %x, %0
43; FORCE-NEXT:   ret i32 %add
44; FORCE-NEXT: }
45
46; FORCE:      define internal i32 @foo.2(i32 %x, i32* %b) {
47; FORCE-NEXT: entry:
48; FORCE-NEXT:   %0 = load i32, i32* @A, align 4
49; FORCE-NEXT:   %add = add nsw i32 %x, %0
50; FORCE-NEXT:   ret i32 %add
51; FORCE-NEXT: }
52
53define internal i32 @foo(i32 %x, i32* %b) {
54entry:
55  %0 = load i32, i32* %b, align 4
56  %add = add nsw i32 %x, %0
57  ret i32 %add
58}
59