File: cfguard-module-flag.ll

package info (click to toggle)
swiftlang 6.1.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 2,791,604 kB
  • sloc: cpp: 9,901,740; ansic: 2,201,431; asm: 1,091,827; python: 308,252; objc: 82,166; f90: 80,126; lisp: 38,358; pascal: 25,559; sh: 20,429; ml: 5,058; perl: 4,745; makefile: 4,484; awk: 3,535; javascript: 3,018; xml: 918; fortran: 664; cs: 573; ruby: 396
file content (26 lines) | stat: -rw-r--r-- 696 bytes parent folder | download | duplicates (17)
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

; RUN: llc < %s -mtriple=aarch64-pc-windows-msvc | FileCheck %s
; RUN: llc < %s -mtriple=aarch64-w64-windows-gnu | FileCheck %s
; Control Flow Guard is currently only available on Windows

; Test that Control Flow Guard checks are not added in modules with the
; cfguard=1 flag (emit tables but no checks).


declare void @target_func()

define void @func_in_module_without_cfguard() #0 {
entry:
  %func_ptr = alloca ptr, align 8
  store ptr @target_func, ptr %func_ptr, align 8
  %0 = load ptr, ptr %func_ptr, align 8

  call void %0()
  ret void

  ; CHECK-NOT: __guard_check_icall_fptr
  ; CHECK-NOT: __guard_dispatch_icall_fptr
}

!llvm.module.flags = !{!0}
!0 = !{i32 2, !"cfguard", i32 1}