xref: /llvm-project/llvm/test/Transforms/FunctionSpecialization/function-specialization-noexec.ll (revision e15d72adac66790a78a51a3087b56b2bde6b778a)
1; RUN: opt -passes="ipsccp<func-spec>" -force-specialization -S < %s | FileCheck %s
2
3; The if.then block is not executed, so check that we don't specialise here.
4
5; CHECK-NOT: @foo.specialized.1(
6; CHECK-NOT: @foo.specialized.2(
7
8target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
9
10@A = external dso_local constant i32, align 4
11@B = external dso_local constant i32, align 4
12
13define dso_local i32 @bar(i32 %x, i32 %y) {
14entry:
15  %tobool = icmp ne i32 %x, 0
16  br i1 false, label %if.then, label %if.else
17
18if.then:
19  %call = call i32 @foo(i32 %x, ptr @A)
20  br label %return
21
22if.else:
23  %call1 = call i32 @foo(i32 %y, ptr @B)
24  br label %return
25
26return:
27  %retval.0 = phi i32 [ %call, %if.then ], [ %call1, %if.else ]
28  ret i32 %retval.0
29}
30
31define internal i32 @foo(i32 %x, ptr %b) {
32entry:
33  %0 = load i32, ptr %b, align 4
34  %add = add nsw i32 %x, %0
35  ret i32 %add
36}
37