1; RUN: opt < %s -dfsan -S | FileCheck %s --check-prefixes=CHECK,CHECK_NO_ORIGIN -DSHADOW_XOR_MASK=87960930222080 --dump-input-context=100 2; RUN: opt < %s -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 -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 14; CHECK: @__dfsan_shadow_width_bits = weak_odr constant i32 [[#SBITS:]] 15; CHECK: @__dfsan_shadow_width_bytes = weak_odr constant i32 [[#SBYTES:]] 16 17define i8 @load(i8* %p) { 18 ; CHECK-LABEL: define i8 @load.dfsan 19 ; CHECK: xor i64 {{.*}}, [[SHADOW_XOR_MASK]] 20 ; CHECK: ret i8 %a 21 %a = load i8, i8* %p 22 ret i8 %a 23} 24 25define void @store(i8* %p) { 26 ; CHECK-LABEL: define void @store.dfsan 27 ; CHECK: xor i64 {{.*}}, [[SHADOW_XOR_MASK]] 28 ; CHECK: ret void 29 store i8 0, i8* %p 30 ret void 31} 32 33; CHECK: declare void @__dfsan_load_callback(i[[#SBITS]], i8*) 34; CHECK: declare void @__dfsan_store_callback(i[[#SBITS]], i8*) 35; CHECK: declare void @__dfsan_mem_transfer_callback(i[[#SBITS]]*, i64) 36; CHECK: declare void @__dfsan_cmp_callback(i[[#SBITS]]) 37 38; CHECK: ; Function Attrs: nounwind readonly 39; CHECK-NEXT: declare zeroext i[[#SBITS]] @__dfsan_union_load(i[[#SBITS]]*, i64) 40 41; CHECK: ; Function Attrs: nounwind readonly 42; CHECK-NEXT: declare zeroext i64 @__dfsan_load_label_and_origin(i8*, i64) 43 44; CHECK: declare void @__dfsan_unimplemented(i8*) 45; CHECK: declare void @__dfsan_set_label(i[[#SBITS]] zeroext, i32 zeroext, i8*, i64) 46; CHECK: declare void @__dfsan_nonzero_label() 47; CHECK: declare void @__dfsan_vararg_wrapper(i8*) 48; CHECK: declare zeroext i32 @__dfsan_chain_origin(i32 zeroext) 49; CHECK: declare zeroext i32 @__dfsan_chain_origin_if_tainted(i[[#SBITS]] zeroext, i32 zeroext) 50; CHECK: declare void @__dfsan_mem_origin_transfer(i8*, i8*, i64) 51; CHECK: declare void @__dfsan_maybe_store_origin(i[[#SBITS]] zeroext, i8*, i64, i32 zeroext) 52