File: escape-gep-invoke.ll

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 (32 lines) | stat: -rw-r--r-- 908 bytes parent folder | download | duplicates (4) 
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
 
; RUN: opt -safe-stack -S -mtriple=i386-pc-linux-gnu < %s -o - | FileCheck %s
; RUN: opt -safe-stack -S -mtriple=x86_64-pc-linux-gnu < %s -o - | FileCheck %s

%struct.pair = type { i32, i32 }

@.str = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1

; Addr-of a struct element passed into an invoke instruction.
;   (GEP followed by an invoke)
;  safestack attribute
; Requires protector.
define i32 @foo() uwtable safestack personality ptr @__gxx_personality_v0 {
entry:
  ; CHECK: __safestack_unsafe_stack_ptr
  %c = alloca %struct.pair, align 4
  %exn.slot = alloca ptr
  %ehselector.slot = alloca i32
  store i32 0, ptr %c, align 4
  invoke void @_Z3exceptPi(ptr %c)
          to label %invoke.cont unwind label %lpad

invoke.cont:
  ret i32 0

lpad:
  %0 = landingpad { ptr, i32 }
          catch ptr null
  ret i32 0
}

declare void @_Z3exceptPi(ptr)
declare i32 @__gxx_personality_v0(...)