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
|
// RUN: %clang_cc1 -triple x86_64-apple-macosx10.7.0 %s -emit-llvm -o - | FileCheck %s
// CHECK: %{{[a-z0-9]+}} = notail call i32 @callee0(i32 %
// CHECK: %{{[a-z0-9]+}} = notail call i32 @callee1(i32 %
// Check that indirect calls do not have the notail marker.
// CHECK: store i32 (i32)* @callee1, i32 (i32)** [[ALLOCA1:%[A-Za-z0-9]+]], align 8
// CHECK: [[INDIRFUNC:%[0-9]+]] = load i32 (i32)*, i32 (i32)** [[ALLOCA1]], align 8
// CHECK: %{{[a-z0-9]+}} = call i32 [[INDIRFUNC]](i32 %{{[0-9]+}}
// CHECK: %{{[a-z0-9]+}} = call i32 @callee2(i32 %
int callee0(int a) __attribute__((not_tail_called)) {
return a + 1;
}
int callee1(int) __attribute__((not_tail_called));
int callee2(int);
typedef int (*FuncTy)(int);
int foo0(int a) {
if (a > 1)
return callee0(a);
if (a == 1)
return callee1(a);
if (a < 0) {
FuncTy F = callee1;
return (*F)(a);
}
return callee2(a);
}
|
