1; RUN: opt < %s -passes=dfsan -dfsan-track-select-control-flow=true -S | FileCheck %s --check-prefixes=CHECK,TRACK_CF 2; RUN: opt < %s -passes=dfsan -dfsan-track-select-control-flow=false -S | FileCheck %s --check-prefixes=CHECK,NO_TRACK_CF 3target 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" 4target triple = "x86_64-unknown-linux-gnu" 5 6; CHECK: @__dfsan_arg_tls = external thread_local(initialexec) global [[TLS_ARR:\[100 x i64\]]] 7; CHECK: @__dfsan_retval_tls = external thread_local(initialexec) global [[TLS_ARR]] 8define i8 @select8(i1 %c, i8 %t, i8 %f) { 9 ; TRACK_CF: @select8.dfsan 10 ; TRACK_CF: %[[#R:]] = load i8, ptr inttoptr (i64 add (i64 ptrtoint (ptr @__dfsan_arg_tls to i64), i64 4) to ptr), align [[ALIGN:2]] 11 ; TRACK_CF: %[[#R+1]] = load i8, ptr inttoptr (i64 add (i64 ptrtoint (ptr @__dfsan_arg_tls to i64), i64 2) to ptr), align [[ALIGN]] 12 ; TRACK_CF: %[[#R+2]] = load i8, ptr @__dfsan_arg_tls, align [[ALIGN]] 13 ; TRACK_CF: %[[#R+3]] = select i1 %c, i8 %[[#R+1]], i8 %[[#R]] 14 ; TRACK_CF: %[[#RO:]] = or i8 %[[#R+2]], %[[#R+3]] 15 ; TRACK_CF: %a = select i1 %c, i8 %t, i8 %f 16 ; TRACK_CF: store i8 %[[#RO]], ptr @__dfsan_retval_tls, align [[ALIGN]] 17 ; TRACK_CF: ret i8 %a 18 19 ; NO_TRACK_CF: @select8.dfsan 20 ; NO_TRACK_CF: %[[#R:]] = load i8, ptr inttoptr (i64 add (i64 ptrtoint (ptr @__dfsan_arg_tls to i64), i64 4) to ptr), align [[ALIGN:2]] 21 ; NO_TRACK_CF: %[[#R+1]] = load i8, ptr inttoptr (i64 add (i64 ptrtoint (ptr @__dfsan_arg_tls to i64), i64 2) to ptr), align [[ALIGN]] 22 ; NO_TRACK_CF: %[[#R+2]] = load i8, ptr @__dfsan_arg_tls, align [[ALIGN]] 23 ; NO_TRACK_CF: %[[#R+3]] = select i1 %c, i8 %[[#R+1]], i8 %[[#R]] 24 ; NO_TRACK_CF: %a = select i1 %c, i8 %t, i8 %f 25 ; NO_TRACK_CF: store i8 %[[#R+3]], ptr @__dfsan_retval_tls, align [[ALIGN]] 26 ; NO_TRACK_CF: ret i8 %a 27 28 %a = select i1 %c, i8 %t, i8 %f 29 ret i8 %a 30} 31 32define i8 @select8e(i1 %c, i8 %tf) { 33 ; TRACK_CF: @select8e.dfsan 34 ; TRACK_CF: %[[#R:]] = load i8, ptr inttoptr (i64 add (i64 ptrtoint (ptr @__dfsan_arg_tls to i64), i64 2) to ptr), align [[ALIGN]] 35 ; TRACK_CF: %[[#R+1]] = load i8, ptr @__dfsan_arg_tls, align [[ALIGN]] 36 ; TRACK_CF: %[[#RO:]] = or i8 %[[#R+1]], %[[#R]] 37 ; TRACK_CF: %a = select i1 %c, i8 %tf, i8 %tf 38 ; TRACK_CF: store i8 %[[#RO]], ptr @__dfsan_retval_tls, align [[ALIGN]] 39 ; TRACK_CF: ret i8 %a 40 41 ; NO_TRACK_CF: @select8e.dfsan 42 ; NO_TRACK_CF: %[[#R:]] = load i8, ptr inttoptr (i64 add (i64 ptrtoint (ptr @__dfsan_arg_tls to i64), i64 2) to ptr), align [[ALIGN]] 43 ; NO_TRACK_CF: %[[#R+1]] = load i8, ptr @__dfsan_arg_tls, align [[ALIGN]] 44 ; NO_TRACK_CF: %a = select i1 %c, i8 %tf, i8 %tf 45 ; NO_TRACK_CF: store i8 %[[#R]], ptr @__dfsan_retval_tls, align [[ALIGN]] 46 ; NO_TRACK_CF: ret i8 %a 47 48 %a = select i1 %c, i8 %tf, i8 %tf 49 ret i8 %a 50} 51 52define <4 x i8> @select8v(<4 x i1> %c, <4 x i8> %t, <4 x i8> %f) { 53 ; TRACK_CF: @select8v.dfsan 54 ; TRACK_CF: %[[#R:]] = load i8, ptr inttoptr (i64 add (i64 ptrtoint (ptr @__dfsan_arg_tls to i64), i64 4) to ptr), align [[ALIGN:2]] 55 ; TRACK_CF: %[[#R+1]] = load i8, ptr inttoptr (i64 add (i64 ptrtoint (ptr @__dfsan_arg_tls to i64), i64 2) to ptr), align [[ALIGN]] 56 ; TRACK_CF: %[[#R+2]] = load i8, ptr @__dfsan_arg_tls, align [[ALIGN]] 57 ; TRACK_CF: %[[#R+3]] = or i8 %[[#R+1]], %[[#R]] 58 ; TRACK_CF: %[[#RO:]] = or i8 %[[#R+2]], %[[#R+3]] 59 ; TRACK_CF: %a = select <4 x i1> %c, <4 x i8> %t, <4 x i8> %f 60 ; TRACK_CF: store i8 %[[#RO]], ptr @__dfsan_retval_tls, align [[ALIGN]] 61 ; TRACK_CF: ret <4 x i8> %a 62 63 ; NO_TRACK_CF: @select8v.dfsan 64 ; NO_TRACK_CF: %[[#R:]] = load i8, ptr inttoptr (i64 add (i64 ptrtoint (ptr @__dfsan_arg_tls to i64), i64 4) to ptr), align [[ALIGN:2]] 65 ; NO_TRACK_CF: %[[#R+1]] = load i8, ptr inttoptr (i64 add (i64 ptrtoint (ptr @__dfsan_arg_tls to i64), i64 2) to ptr), align [[ALIGN]] 66 ; NO_TRACK_CF: %[[#R+2]] = load i8, ptr @__dfsan_arg_tls, align [[ALIGN]] 67 ; NO_TRACK_CF: %[[#RO:]] = or i8 %[[#R+1]], %[[#R]] 68 ; NO_TRACK_CF: %a = select <4 x i1> %c, <4 x i8> %t, <4 x i8> %f 69 ; NO_TRACK_CF: store i8 %[[#RO]], ptr @__dfsan_retval_tls, align [[ALIGN]] 70 ; NO_TRACK_CF: ret <4 x i8> %a 71 72 %a = select <4 x i1> %c, <4 x i8> %t, <4 x i8> %f 73 ret <4 x i8> %a 74} 75