xref: /llvm-project/llvm/test/Transforms/FunctionSpecialization/function-specialization-nodup2.ll (revision e15d72adac66790a78a51a3087b56b2bde6b778a)
1; RUN: opt -passes="ipsccp<func-spec>" -force-specialization -S < %s | FileCheck %s
2
3; Check that function foo does not gets specialised as it contains an intrinsic
4; that is marked as NoDuplicate.
5; Please note that the use of the hardwareloop intrinsic is arbitrary; it's
6; just an easy to use intrinsic that has NoDuplicate.
7
8; CHECK-NOT: @foo.specialized.1(
9; CHECK-NOT: @foo.specialized.2(
10
11target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
12
13@A = external dso_local constant i32, align 4
14@B = external dso_local constant i32, align 4
15
16define dso_local i32 @bar(i32 %x, i32 %y) {
17entry:
18  %tobool = icmp ne i32 %x, 0
19  br i1 %tobool, label %if.then, label %if.else
20
21if.then:
22  %call = call i32 @foo(i32 %x, ptr @A)
23  br label %return
24
25if.else:
26  %call1 = call i32 @foo(i32 %y, ptr @B)
27  br label %return
28
29return:
30  %retval.0 = phi i32 [ %call, %if.then ], [ %call1, %if.else ]
31  ret i32 %retval.0
32}
33
34define internal i32 @foo(i32 %x, ptr %b) {
35entry:
36  %0 = load i32, ptr %b, align 4
37  %add = add nsw i32 %x, %0
38  %cmp = call i1 @llvm.test.set.loop.iterations.i32(i32 42)
39  ret i32 %add
40}
41
42declare i1 @llvm.test.set.loop.iterations.i32(i32)
43