1; Make sure MSan handles llvm.launder.invariant.group correctly. 2 3; RUN: opt < %s -passes='module(msan),default<O1>' -msan-kernel=1 -S | FileCheck -check-prefixes=CHECK %s 4; RUN: opt < %s -passes='module(msan),default<O1>' -S | FileCheck -check-prefixes=CHECK %s 5 6target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" 7target triple = "x86_64-unknown-linux-gnu" 8 9@flag = dso_local local_unnamed_addr global i8 0, align 1 10 11define dso_local ptr @f(ptr %x) local_unnamed_addr #0 { 12entry: 13 %0 = call ptr @llvm.strip.invariant.group.p0(ptr %x) 14 ret ptr %0 15} 16 17; CHECK-NOT: call void @__msan_warning_with_origin_noreturn 18 19declare ptr @llvm.strip.invariant.group.p0(ptr) 20 21attributes #0 = { sanitize_memory uwtable } 22