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 4 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" 5 target triple = "x86_64-unknown-linux-gnu" 6 7 define void @g(i64 %n) sanitize_address { 8 entry: 9 %cmp = icmp sgt i64 %n, 100 10 br i1 %cmp, label %do_alloca, label %done 11 12 do_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 18 done: 19 ret void 20 } 21 22 declare void @f(i8*) 23 24
