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 ; The actual load comes next because ASan adds the last instrumentation block
20 ; to the end of the function.
21 ; CHECK: %tmp1 = load i32* %a
22 ; CHECK: ret i32 %tmp1
24 ; First instrumentation block refines the shadow test.
25 ; CHECK: and i64 %[[LOAD_ADDR]], 7
26 ; CHECK: add i64 %{{.*}}, 3
27 ; CHECK: trunc i64 %{{.*}} to i8
28 ; CHECK: icmp sge i8 %{{.*}}, %[[LOAD_SHADOW]]
29 ; CHECK: br i1 %{{.*}}, label %{{.*}}, label %{{.*}}
31 ; Final instrumentation block reports the error.
32 ; CHECK: call void @__asan_report_load4(i64 %[[LOAD_ADDR]]) noreturn
40 define void @test_store(i32* %a) address_safety {
43 ; CHECK: %[[STORE_ADDR:[^ ]*]] = ptrtoint i32* %a to i64
44 ; CHECK: lshr i64 %[[STORE_ADDR]], 3
46 ; CHECK: %[[STORE_SHADOW_PTR:[^ ]*]] = inttoptr
47 ; CHECK: %[[STORE_SHADOW:[^ ]*]] = load i8* %[[STORE_SHADOW_PTR]]
49 ; CHECK: br i1 %{{.*}}, label %{{.*}}, label %{{.*}}
51 ; The actual store comes next because ASan adds the last instrumentation block
52 ; to the end of the function.
53 ; CHECK: store i32 42, i32* %a
56 ; First instrumentation block refines the shadow test.
57 ; CHECK: and i64 %[[STORE_ADDR]], 7
58 ; CHECK: add i64 %{{.*}}, 3
59 ; CHECK: trunc i64 %{{.*}} to i8
60 ; CHECK: icmp sge i8 %{{.*}}, %[[STORE_SHADOW]]
61 ; CHECK: br i1 %{{.*}}, label %{{.*}}, label %{{.*}}
63 ; Final instrumentation block reports the error.
64 ; CHECK: call void @__asan_report_store4(i64 %[[STORE_ADDR]]) noreturn