1 ; RUN: llc -o - < %s | FileCheck %s
3 target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
4 target triple = "x86_64-apple-macosx"
6 ; Even if the target supports shrink-wrapping, the prologue and epilogue
7 ; must not move because a crash can happen anywhere and sanitizers need
8 ; to be able to unwind from the PC of the crash.
9 ; CHECK-LABEL: sanitize:
14 ; CHECK: movl $40, %edi
15 ; CHECK-NEXT: callq ___asan_report_load4
16 define void @sanitize() #0 {
18 %tmp = load i8, ptr inttoptr (i64 17592186044421 to ptr)
19 %tmp1 = icmp ne i8 %tmp, 0
20 br i1 %tmp1, label %if.then, label %else
23 %tmp3 = icmp sge i8 3, %tmp
24 br i1 %tmp3, label %else, label %end
27 call void @__asan_report_load4(i64 40)
28 call void asm sideeffect "", ""()
32 %tmp6 = load i32, ptr inttoptr (i64 40 to ptr), align 8
33 %inc = add nsw i32 %tmp6, 1
34 store i32 %inc, ptr inttoptr (i64 40 to ptr), align 8
38 attributes #0 = { sanitize_address nounwind "frame-pointer"="all" }
40 declare void @__asan_report_load4(i64)