File: msan_llvm_strip_invariant.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 (21 lines) | stat: -rw-r--r-- 748 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
 
; Make sure MSan handles llvm.launder.invariant.group correctly.

; RUN: opt < %s -passes='module(msan),default<O1>' -msan-kernel=1 -S | FileCheck -check-prefixes=CHECK %s
; RUN: opt < %s -passes='module(msan),default<O1>' -S | FileCheck -check-prefixes=CHECK %s

target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

@flag = dso_local local_unnamed_addr global i8 0, align 1

define dso_local ptr @f(ptr %x) local_unnamed_addr #0 {
entry:
  %0 = call ptr @llvm.strip.invariant.group.p0(ptr %x)
  ret ptr %0
}

; CHECK-NOT: call void @__msan_warning_with_origin_noreturn

declare ptr @llvm.strip.invariant.group.p0(ptr)

attributes #0 = { sanitize_memory uwtable }