File: sink-to-use.ll

package info (click to toggle)
swiftlang 6.0.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 2,519,992 kB
  • sloc: cpp: 9,107,863; ansic: 2,040,022; asm: 1,135,751; python: 296,500; objc: 82,456; f90: 60,502; lisp: 34,951; pascal: 19,946; sh: 18,133; perl: 7,482; ml: 4,937; javascript: 4,117; makefile: 3,840; awk: 3,535; xml: 914; fortran: 619; cs: 573; ruby: 573
file content (20 lines) | stat: -rw-r--r-- 615 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
 
; Test that unsafe alloca address calculation is done immediately before each use.
; RUN: opt -safe-stack -S -mtriple=x86_64-pc-linux-gnu < %s -o - | FileCheck %s
; RUN: opt -safe-stack -S -mtriple=i386-pc-linux-gnu < %s -o - | FileCheck %s

define void @f() safestack {
entry:
  %x0 = alloca i32, align 4
  %x1 = alloca i32, align 4

; CHECK: %[[A:.*]] = getelementptr i8, ptr %{{.*}}, i32 -4
; CHECK: call void @use(ptr %[[A]])
  call void @use(ptr %x0)

; CHECK: %[[B:.*]] = getelementptr i8, ptr %{{.*}}, i32 -8
; CHECK: call void @use(ptr %[[B]])
  call void @use(ptr %x1)
  ret void
}

declare void @use(ptr)