1 ; RUN: opt -function-specialization -force-function-specialization \
2 ; RUN: -func-specialization-max-constants=2 -S < %s | FileCheck %s
4 ; RUN: opt -function-specialization -force-function-specialization \
5 ; RUN: -func-specialization-max-constants=1 -S < %s | FileCheck %s --check-prefix=CONST1
7 target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
9 @A = external dso_local constant i32, align 4
10 @B = external dso_local constant i32, align 4
11 @C = external dso_local constant i32, align 4
12 @D = external dso_local constant i32, align 4
14 define dso_local i32 @bar(i32 %x, i32 %y) {
16 %tobool = icmp ne i32 %x, 0
17 br i1 %tobool, label %if.then, label %if.else
20 %call = call i32 @foo(i32 %x, i32* @A, i32* @C)
24 %call1 = call i32 @foo(i32 %y, i32* @B, i32* @D)
28 %retval.0 = phi i32 [ %call, %if.then ], [ %call1, %if.else ]
32 define internal i32 @foo(i32 %x, i32* %b, i32* %c) {
34 %0 = load i32, i32* %b, align 4
35 %add = add nsw i32 %x, %0
36 %1 = load i32, i32* %c, align 4
37 %add1 = add nsw i32 %add, %1
41 ; CONST1-NOT: define internal i32 @foo.1(i32 %x, i32* %b, i32* %c)
42 ; CONST1-NOT: define internal i32 @foo.2(i32 %x, i32* %b, i32* %c)
44 ; CHECK: define internal i32 @foo.1(i32 %x, i32* %b, i32* %c) {
46 ; CHECK-NEXT: %0 = load i32, i32* @A, align 4
47 ; CHECK-NEXT: %add = add nsw i32 %x, %0
48 ; CHECK-NEXT: %1 = load i32, i32* %c, align 4
49 ; CHECK-NEXT: %add1 = add nsw i32 %add, %1
50 ; CHECK-NEXT: ret i32 %add1
53 ; CHECK: define internal i32 @foo.2(i32 %x, i32* %b, i32* %c) {
55 ; CHECK-NEXT: %0 = load i32, i32* @B, align 4
56 ; CHECK-NEXT: %add = add nsw i32 %x, %0
57 ; CHECK-NEXT: %1 = load i32, i32* %c, align 4
58 ; CHECK-NEXT: %add1 = add nsw i32 %add, %1
59 ; CHECK-NEXT: ret i32 %add1