40 lines
1.2 KiB
LLVM
40 lines
1.2 KiB
LLVM
; Test that the scale (-asan-mapping-scale) and offset (-asan-mapping-offset) command-line options work as expected
|
|
;
|
|
; RUN: opt < %s -asan -asan-module -asan-mapping-offset 0xdeadbeef -S | FileCheck --check-prefix=CHECK-OFFSET %s
|
|
; RUN: opt < %s -asan -asan-module -asan-mapping-scale 1 -S | FileCheck --check-prefix=CHECK-SCALE %s
|
|
; RUN: opt < %s -asan -asan-module -asan-mapping-offset 0xc0ffee -asan-mapping-scale 0 -S | FileCheck --check-prefix=CHECK-BOTH %s
|
|
target triple = "x86_64-unknown-linux-gnu"
|
|
|
|
define i32 @read_offset(i32* %a) sanitize_address {
|
|
entry:
|
|
%tmp1 = load i32, i32* %a, align 4
|
|
ret i32 %tmp1
|
|
}
|
|
; CHECK-OFFSET-LABEL: @read_offset
|
|
; CHECK-OFFSET-NOT: ret
|
|
; CHECK-OFFSET: lshr {{.*}} 3
|
|
; CHECK-OFFSET-NEXT: add{{.*}}3735928559
|
|
; CHECK-OFFSET: ret
|
|
|
|
define i32 @read_scale(i32* %a) sanitize_address {
|
|
entry:
|
|
%tmp1 = load i32, i32* %a, align 4
|
|
ret i32 %tmp1
|
|
}
|
|
; CHECK-SCALE-LABEL: @read_scale
|
|
; CHECK-SCALE-NOT: ret
|
|
; CHECK-SCALE: lshr {{.*}} 1
|
|
; CHECK-SCALE-NEXT: add{{.*}}
|
|
; CHECK-SCALE: ret
|
|
|
|
define i32 @read_both(i32* %a) sanitize_address {
|
|
entry:
|
|
%tmp1 = load i32, i32* %a, align 4
|
|
ret i32 %tmp1
|
|
}
|
|
; CHECK-BOTH-LABEL: @read_both
|
|
; CHECK-BOTH-NOT: ret
|
|
; CHECK-BOTH: lshr {{.*}} 0
|
|
; CHECK-BOTH-NEXT: add{{.*}}12648430
|
|
; CHECK-BOTH: ret
|