File: cfguard-module-flag.ll

package info (click to toggle)
llvm-toolchain-19 1%3A19.1.7-3
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,998,520 kB
  • sloc: cpp: 6,951,680; ansic: 1,486,157; asm: 913,598; python: 232,024; f90: 80,126; objc: 75,281; lisp: 37,276; pascal: 16,990; sh: 10,009; ml: 5,058; perl: 4,724; awk: 3,523; makefile: 3,167; javascript: 2,504; xml: 892; fortran: 664; cs: 573
file content (26 lines) | stat: -rw-r--r-- 696 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

; 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}