1; Test that the scale (-asan-mapping-scale) and offset (-asan-mapping-offset) command-line options work as expected 2; 3; RUN: opt < %s -asan -asan-module -asan-mapping-offset 0xdeadbeef -S | FileCheck --check-prefix=CHECK-OFFSET %s 4; RUN: opt < %s -asan -asan-module -asan-mapping-scale 1 -S | FileCheck --check-prefix=CHECK-SCALE %s 5; RUN: opt < %s -asan -asan-module -asan-mapping-offset 0xc0ffee -asan-mapping-scale 0 -S | FileCheck --check-prefix=CHECK-BOTH %s 6target triple = "x86_64-unknown-linux-gnu" 7 8define i32 @read_offset(i32* %a) sanitize_address { 9entry: 10 %tmp1 = load i32, i32* %a, align 4 11 ret i32 %tmp1 12} 13; CHECK-OFFSET-LABEL: @read_offset 14; CHECK-OFFSET-NOT: ret 15; CHECK-OFFSET: lshr {{.*}} 3 16; CHECK-OFFSET-NEXT: add{{.*}}3735928559 17; CHECK-OFFSET: ret 18 19define i32 @read_scale(i32* %a) sanitize_address { 20entry: 21 %tmp1 = load i32, i32* %a, align 4 22 ret i32 %tmp1 23} 24; CHECK-SCALE-LABEL: @read_scale 25; CHECK-SCALE-NOT: ret 26; CHECK-SCALE: lshr {{.*}} 1 27; CHECK-SCALE-NEXT: add{{.*}} 28; CHECK-SCALE: ret 29 30define i32 @read_both(i32* %a) sanitize_address { 31entry: 32 %tmp1 = load i32, i32* %a, align 4 33 ret i32 %tmp1 34} 35; CHECK-BOTH-LABEL: @read_both 36; CHECK-BOTH-NOT: ret 37; CHECK-BOTH: lshr {{.*}} 0 38; CHECK-BOTH-NEXT: add{{.*}}12648430 39; CHECK-BOTH: ret 40