1; Test that undecidable dynamic allocas are skipped by ASan.
2
3; RUN: opt < %s -asan -asan-module -asan-instrument-allocas=1 -S | FileCheck %s
4target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
5target triple = "x86_64-unknown-linux-gnu"
6
7define void @g(i64 %n) sanitize_address {
8entry:
9  %cmp = icmp sgt i64 %n, 100
10  br i1 %cmp, label %do_alloca, label %done
11
12do_alloca:
13; CHECK-NOT: store i32 -892679478
14  %0 = alloca i8, i64 %n, align 1
15  call void @f(i8* %0)
16  br label %done
17
18done:
19  ret void
20}
21
22declare void @f(i8*)
23
24