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 6 target triple = "x86_64-unknown-linux-gnu" 7 8 define i32 @read_offset(i32* %a) sanitize_address { 9 entry: 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 19 define i32 @read_scale(i32* %a) sanitize_address { 20 entry: 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 30 define i32 @read_both(i32* %a) sanitize_address { 31 entry: 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
