| ; Test that undecidable dynamic allocas are skipped by ASan. |
| |
| ; RUN: opt < %s -asan -asan-module -asan-instrument-allocas=1 -S | FileCheck %s |
| target 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" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| define void @g(i64 %n) sanitize_address { |
| entry: |
| %cmp = icmp sgt i64 %n, 100 |
| br i1 %cmp, label %do_alloca, label %done |
| |
| do_alloca: |
| ; CHECK-NOT: store i32 -892679478 |
| %0 = alloca i8, i64 %n, align 1 |
| call void @f(i8* %0) |
| br label %done |
| |
| done: |
| ret void |
| } |
| |
| declare void @f(i8*) |
| |
