File: default-arguments-with-immediate.cpp

package info (click to toggle)
llvm-toolchain-16 1%3A16.0.6-15~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,634,792 kB
  • sloc: cpp: 6,179,261; ansic: 1,216,205; asm: 741,319; python: 196,614; objc: 75,325; f90: 49,640; lisp: 32,396; pascal: 12,286; sh: 9,394; perl: 7,442; ml: 5,494; awk: 3,523; makefile: 2,723; javascript: 1,206; xml: 886; fortran: 581; cs: 573
file content (54 lines) | stat: -rw-r--r-- 1,130 bytes parent folder | download | duplicates (12)
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
// RUN: %clang_cc1 -std=c++2a -triple x86_64-elf-gnu %s -emit-llvm -o - | FileCheck %s

consteval int immediate() { return 0;}
static int ext();
void f(int a = immediate() + ext());

void test_function() {
    f();
    f(0);
    // CHECK: call noundef i32 @_ZL3extv()
    // CHECK: add
    // CHECK: call {{.*}} @_Z1fi
    // CHECK: call {{.*}} @_Z1fi
}

// CHECK: define {{.*}} i32 @_ZL3extv()

static constexpr int not_immediate();
struct A {
    int a = immediate() + not_immediate();
};

void test_member() {
    // CHECK: call void @_ZN1AC2Ev
    A defaulted;
    // CHECK-NOT: call void @_ZN1AC2Ev
    A provided{0};
}

// CHECK: define {{.*}} void @_ZN1AC2Ev{{.*}}
// CHECK: %call = call noundef i32 @_ZL13not_immediatev()

int never_referenced() {return 42;};


namespace not_used {

struct A {
    int a = immediate() + never_referenced();
};
void f(int a = immediate() + never_referenced());

void g() {
    A a{0};
    f(0);
}

}

static int ext() {return 0;}
static constexpr int not_immediate() {return 0;}

// CHECK-NOT: define {{.*}} i32 _ZL16never_referencedv()(
// CHECK: define {{.*}} i32 @_ZL13not_immediatev()