File: kernel.ll

package info (click to toggle)
llvm-toolchain-14 1%3A14.0.6-12
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,496,180 kB
  • sloc: cpp: 5,593,972; ansic: 986,872; asm: 585,869; python: 184,223; objc: 72,530; lisp: 31,119; f90: 27,793; javascript: 9,780; pascal: 9,762; sh: 9,482; perl: 7,468; ml: 5,432; awk: 3,523; makefile: 2,538; xml: 953; cs: 573; fortran: 567
file content (29 lines) | stat: -rw-r--r-- 1,097 bytes parent folder | download | duplicates (6)
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
; Test KHWASan instrumentation.
; Generic code is covered by ../kernel.ll, only the x86_64 specific code is
; tested here.
;
; RUN: opt < %s -hwasan -hwasan-kernel=1 -S | FileCheck %s --allow-empty --check-prefixes=INIT
; RUN: opt < %s -hwasan -hwasan-kernel=1 -S | FileCheck %s
; RUN: opt < %s -hwasan -hwasan-kernel=1 -hwasan-mapping-offset=12345678 -S | FileCheck %s
; RUN: opt < %s -hwasan -hwasan-kernel=1 -hwasan-recover=0 -S | FileCheck %s --check-prefixes=CHECK,ABORT
; RUN: opt < %s -hwasan -hwasan-kernel=1 -hwasan-recover=1 -S | FileCheck %s --check-prefixes=CHECK,RECOVER

target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

define i8 @test_load(i8* %a) sanitize_hwaddress {
; CHECK-LABEL: @test_load(
; CHECK: %[[A:[^ ]*]] = ptrtoint i8* %a to i64

; ABORT: call void @__hwasan_load1(i64 %[[A]])
; RECOVER: call void @__hwasan_load1_noabort(i64 %[[A]])

; CHECK: %[[G:[^ ]*]] = load i8, i8* %a, align 4
; CHECK: ret i8 %[[G]]

entry:
  %b = load i8, i8* %a, align 4
  ret i8 %b
}

; INIT-NOT: call void @__hwasan_init