1 ; Test that the scale (-asan-mapping-scale) and offset (-asan-mapping-offset) command-line options work as expected
3 ; RUN: opt < %s -passes=asan -asan-mapping-offset 0xdeadbeef -S | FileCheck --check-prefix=CHECK-OFFSET %s
4 ; RUN: opt < %s -passes=asan -asan-mapping-scale 1 -S | FileCheck --check-prefix=CHECK-SCALE %s
5 ; RUN: opt < %s -passes=asan -asan-mapping-offset 0xc0ffee -asan-mapping-scale 0 -S | FileCheck --check-prefix=CHECK-BOTH %s
6 target triple = "x86_64-unknown-linux-gnu"
8 define i32 @read_offset(ptr %a) sanitize_address {
10 %tmp1 = load i32, ptr %a, align 4
13 ; CHECK-OFFSET-LABEL: @read_offset
14 ; CHECK-OFFSET-NOT: ret
15 ; CHECK-OFFSET: lshr {{.*}} 3
16 ; CHECK-OFFSET-NEXT: add{{.*}}3735928559
19 define i32 @read_scale(ptr %a) sanitize_address {
21 %tmp1 = load i32, ptr %a, align 4
24 ; CHECK-SCALE-LABEL: @read_scale
25 ; CHECK-SCALE-NOT: ret
26 ; CHECK-SCALE: lshr {{.*}} 1
27 ; CHECK-SCALE-NEXT: add{{.*}}
30 define i32 @read_both(ptr %a) sanitize_address {
32 %tmp1 = load i32, ptr %a, align 4
35 ; CHECK-BOTH-LABEL: @read_both
37 ; CHECK-BOTH: lshr {{.*}} 0
38 ; CHECK-BOTH-NEXT: add{{.*}}12648430