41 lines
1.1 KiB
LLVM
41 lines
1.1 KiB
LLVM
; RUN: llc -o - < %s | FileCheck %s
|
|
|
|
target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
|
|
target triple = "x86_64-apple-macosx"
|
|
|
|
; Even if the target supports shrink-wrapping, the prologue and epilogue
|
|
; must not move because a crash can happen anywhere and sanitizers need
|
|
; to be able to unwind from the PC of the crash.
|
|
; CHECK-LABEL: sanitize:
|
|
; CHECK: pushq
|
|
; CHECK: incl 40
|
|
; CHECK: popq
|
|
; CHECK-NEXT: retq
|
|
; CHECK: movl $40, %edi
|
|
; CHECK-NEXT: callq ___asan_report_load4
|
|
define void @sanitize() #0 {
|
|
entry:
|
|
%tmp = load i8, i8* inttoptr (i64 17592186044421 to i8*)
|
|
%tmp1 = icmp ne i8 %tmp, 0
|
|
br i1 %tmp1, label %if.then, label %else
|
|
|
|
if.then:
|
|
%tmp3 = icmp sge i8 3, %tmp
|
|
br i1 %tmp3, label %else, label %end
|
|
|
|
else:
|
|
call void @__asan_report_load4(i64 40)
|
|
call void asm sideeffect "", ""()
|
|
unreachable
|
|
|
|
end:
|
|
%tmp6 = load i32, i32* inttoptr (i64 40 to i32*), align 8
|
|
%inc = add nsw i32 %tmp6, 1
|
|
store i32 %inc, i32* inttoptr (i64 40 to i32*), align 8
|
|
ret void
|
|
}
|
|
|
|
attributes #0 = { sanitize_address nounwind "frame-pointer"="all" }
|
|
|
|
declare void @__asan_report_load4(i64)
|