| ; RUN: opt < %s -passes=dfsan,dfsan -S | FileCheck %s |
| target 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" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| define i8 @add(i8 %a, i8 %b) { |
| ; CHECK: @add.dfsan |
| ; CHECK-DAG: %[[#ALABEL:]] = load i8, ptr @__dfsan_arg_tls, align [[ALIGN:2]] |
| ; CHECK-DAG: %[[#BLABEL:]] = load i8, ptr inttoptr (i64 add (i64 ptrtoint (ptr @__dfsan_arg_tls to i64), i64 2) to ptr), align [[ALIGN]] |
| ; CHECK: %[[#UNION:]] = or i8 %[[#ALABEL]], %[[#BLABEL]] |
| ; CHECK: %c = add i8 %a, %b |
| ; CHECK: store i8 %[[#UNION]], ptr @__dfsan_retval_tls, align [[ALIGN]] |
| ; CHECK: ret i8 %c |
| %c = add i8 %a, %b |
| ret i8 %c |
| } |
| |
| ; CHECK: [[META0:![0-9]+]] = !{i32 4, !"nosanitize_dataflow", i32 1} |
