1; RUN: opt < %s -passes=dfsan -S | FileCheck %s --check-prefixes=CHECK,CHECK_NO_ORIGIN -DSHADOW_XOR_MASK=87960930222080 --dump-input-context=100 2; RUN: opt < %s -passes=dfsan -dfsan-track-origins=1 -S | FileCheck %s --check-prefixes=CHECK,CHECK_ORIGIN1 -DSHADOW_XOR_MASK=87960930222080 --dump-input-context=100 3; RUN: opt < %s -passes=dfsan -dfsan-track-origins=2 -S | FileCheck %s --check-prefixes=CHECK_ORIGIN2 -DSHADOW_XOR_MASK=87960930222080 --dump-input-context=100 4target 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-S128" 5target triple = "x86_64-unknown-linux-gnu" 6 7; CHECK: @__dfsan_arg_tls = external thread_local(initialexec) global [100 x i64] 8; CHECK: @__dfsan_retval_tls = external thread_local(initialexec) global [100 x i64] 9; CHECK: @__dfsan_arg_origin_tls = external thread_local(initialexec) global [200 x i32] 10; CHECK: @__dfsan_retval_origin_tls = external thread_local(initialexec) global i32 11; CHECK_NO_ORIGIN: @__dfsan_track_origins = weak_odr constant i32 0 12; CHECK_ORIGIN1: @__dfsan_track_origins = weak_odr constant i32 1 13; CHECK_ORIGIN2: @__dfsan_track_origins = weak_odr constant i32 2 14define i8 @load(ptr %p) { 15 ; CHECK-LABEL: define i8 @load.dfsan 16 ; CHECK: xor i64 {{.*}}, [[SHADOW_XOR_MASK]] 17 ; CHECK: ret i8 %a 18 %a = load i8, ptr %p 19 ret i8 %a 20} 21 22define void @store(ptr %p) { 23 ; CHECK-LABEL: define void @store.dfsan 24 ; CHECK: xor i64 {{.*}}, [[SHADOW_XOR_MASK]] 25 ; CHECK: ret void 26 store i8 0, ptr %p 27 ret void 28} 29 30; CHECK: declare void @__dfsan_load_callback(i8 zeroext, ptr) 31; CHECK: declare void @__dfsan_store_callback(i8 zeroext, ptr) 32; CHECK: declare void @__dfsan_mem_transfer_callback(ptr, i64) 33; CHECK: declare void @__dfsan_cmp_callback(i8 zeroext) 34 35; CHECK: ; Function Attrs: nounwind memory(read) 36; CHECK-NEXT: declare zeroext i8 @__dfsan_union_load(ptr, i64) 37 38; CHECK: ; Function Attrs: nounwind memory(read) 39; CHECK-NEXT: declare zeroext i64 @__dfsan_load_label_and_origin(ptr, i64) 40 41; CHECK: declare void @__dfsan_unimplemented(ptr) 42; CHECK: declare void @__dfsan_set_label(i8 zeroext, i32 zeroext, ptr, i64) 43; CHECK: declare void @__dfsan_nonzero_label() 44; CHECK: declare void @__dfsan_vararg_wrapper(ptr) 45; CHECK: declare zeroext i32 @__dfsan_chain_origin(i32 zeroext) 46; CHECK: declare zeroext i32 @__dfsan_chain_origin_if_tainted(i8 zeroext, i32 zeroext) 47; CHECK: declare void @__dfsan_mem_origin_transfer(ptr, ptr, i64) 48; CHECK: declare void @__dfsan_maybe_store_origin(i8 zeroext, ptr, i64, i32 zeroext) 49