File: guard_nocf.c

package info (click to toggle)
llvm-toolchain-11 1%3A11.0.1-2~deb10u1
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 995,836 kB
  • sloc: cpp: 4,767,656; ansic: 760,916; asm: 477,436; python: 170,940; objc: 69,804; lisp: 29,914; sh: 23,855; f90: 18,173; pascal: 7,551; perl: 7,471; ml: 5,603; awk: 3,489; makefile: 2,573; xml: 915; cs: 573; fortran: 503; javascript: 452
file content (53 lines) | stat: -rw-r--r-- 1,396 bytes parent folder | download | duplicates (8)
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
// RUN: %clang_cc1 -triple %ms_abi_triple -fms-extensions -emit-llvm -O2 -o - %s | FileCheck %s

void target_func();
void (*func_ptr)() = &target_func;

// The "guard_nocf" attribute must be added.
__declspec(guard(nocf)) void nocf0() {
  (*func_ptr)();
}
// CHECK-LABEL: nocf0
// CHECK: call{{.*}}[[NOCF:#[0-9]+]]

// The "guard_nocf" attribute must *not* be added.
void cf0() {
  (*func_ptr)();
}
// CHECK-LABEL: cf0
// CHECK: call{{.*}}[[CF:#[0-9]+]]

// If the modifier is present on either the function declaration or definition,
// the "guard_nocf" attribute must be added.
__declspec(guard(nocf)) void nocf1();
void nocf1() {
  (*func_ptr)();
}
// CHECK-LABEL: nocf1
// CHECK: call{{.*}}[[NOCF:#[0-9]+]]

void nocf2();
__declspec(guard(nocf)) void nocf2() {
  (*func_ptr)();
}
// CHECK-LABEL: nocf2
// CHECK: call{{.*}}[[NOCF:#[0-9]+]]

// When inlining a function, the "guard_nocf" attribute on indirect calls must
// be preserved.
void nocf3() {
  nocf0();
}
// CHECK-LABEL: nocf3
// CHECK: call{{.*}}[[NOCF:#[0-9]+]]

// When inlining into a function marked as __declspec(guard(nocf)), the
// "guard_nocf" attribute must *not* be added to the inlined calls.
__declspec(guard(nocf)) void cf1() {
  cf0();
}
// CHECK-LABEL: cf1
// CHECK: call{{.*}}[[CF:#[0-9]+]]

// CHECK: attributes [[NOCF]] = { {{.*}}"guard_nocf"{{.*}} }
// CHECK-NOT: attributes [[CF]] = { {{.*}}"guard_nocf"{{.*}} }