1 ; Test basic address sanitizer instrumentation.
3 ; RUN: opt < %s -asan -S | FileCheck %s
5 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"
6 target triple = "x86_64-unknown-linux-gnu"
8 define i32 @test_load(i32* %a) address_safety {
11 ; CHECK: %[[LOAD_ADDR:[^ ]*]] = ptrtoint i32* %a to i64
12 ; CHECK: lshr i64 %[[LOAD_ADDR]], 3
14 ; CHECK: %[[LOAD_SHADOW_PTR:[^ ]*]] = inttoptr
15 ; CHECK: %[[LOAD_SHADOW:[^ ]*]] = load i8* %[[LOAD_SHADOW_PTR]]
17 ; CHECK: br i1 %{{.*}}, label %{{.*}}, label %{{.*}}
19 ; First instrumentation block refines the shadow test.
20 ; CHECK: and i64 %[[LOAD_ADDR]], 7
21 ; CHECK: add i64 %{{.*}}, 3
22 ; CHECK: trunc i64 %{{.*}} to i8
23 ; CHECK: icmp sge i8 %{{.*}}, %[[LOAD_SHADOW]]
24 ; CHECK: br i1 %{{.*}}, label %{{.*}}, label %{{.*}}
26 ; Second instrumentation block reports the error.
27 ; CHECK: call void @__asan_report_load4(i64 %[[LOAD_ADDR]]) noreturn
30 ; Finally the instrumented load.
31 ; CHECK: %tmp1 = load i32* %a
32 ; CHECK: ret i32 %tmp1
39 define void @test_store(i32* %a) address_safety {
42 ; CHECK: %[[STORE_ADDR:[^ ]*]] = ptrtoint i32* %a to i64
43 ; CHECK: lshr i64 %[[STORE_ADDR]], 3
45 ; CHECK: %[[STORE_SHADOW_PTR:[^ ]*]] = inttoptr
46 ; CHECK: %[[STORE_SHADOW:[^ ]*]] = load i8* %[[STORE_SHADOW_PTR]]
48 ; CHECK: br i1 %{{.*}}, label %{{.*}}, label %{{.*}}
50 ; First instrumentation block refines the shadow test.
51 ; CHECK: and i64 %[[STORE_ADDR]], 7
52 ; CHECK: add i64 %{{.*}}, 3
53 ; CHECK: trunc i64 %{{.*}} to i8
54 ; CHECK: icmp sge i8 %{{.*}}, %[[STORE_SHADOW]]
55 ; CHECK: br i1 %{{.*}}, label %{{.*}}, label %{{.*}}
57 ; Second instrumentation block reports the error.
58 ; CHECK: call void @__asan_report_store4(i64 %[[STORE_ADDR]]) noreturn
61 ; Finally the instrumented store.
62 ; CHECK: store i32 42, i32* %a