1; RUN: opt < %s -passes=dfsan -dfsan-track-select-control-flow=1 -dfsan-track-origins=1 -S | FileCheck %s --check-prefixes=CHECK,TRACK_CONTROL_FLOW 2; RUN: opt < %s -passes=dfsan -dfsan-track-select-control-flow=0 -dfsan-track-origins=1 -S | FileCheck %s --check-prefixes=CHECK,NO_TRACK_CONTROL_FLOW 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_CONTROL_FLOW: @select8.dfsan 10 ; TRACK_CONTROL_FLOW: [[CO:%.*]] = load i32, ptr @__dfsan_arg_origin_tls, align 4 11 ; TRACK_CONTROL_FLOW: [[FO:%.*]] = load i32, ptr getelementptr inbounds ([200 x i32], ptr @__dfsan_arg_origin_tls, i64 0, i64 2), align 4 12 ; TRACK_CONTROL_FLOW: [[TO:%.*]] = load i32, ptr getelementptr inbounds ([200 x i32], ptr @__dfsan_arg_origin_tls, i64 0, i64 1), align 4 13 ; TRACK_CONTROL_FLOW: [[CS:%.*]] = load i8, ptr @__dfsan_arg_tls, align 2 14 ; TRACK_CONTROL_FLOW: [[TFO:%.*]] = select i1 %c, i32 [[TO]], i32 [[FO]] 15 ; TRACK_CONTROL_FLOW: [[CS_NE:%.*]] = icmp ne i8 [[CS]], 0 16 ; TRACK_CONTROL_FLOW: [[CTFO:%.*]] = select i1 [[CS_NE]], i32 [[CO]], i32 [[TFO]] 17 ; TRACK_CONTROL_FLOW: store i32 [[CTFO]], ptr @__dfsan_retval_origin_tls, align 4 18 19 ; NO_TRACK_CONTROL_FLOW: @select8.dfsan 20 ; NO_TRACK_CONTROL_FLOW: [[FO:%.*]] = load i32, ptr getelementptr inbounds ([200 x i32], ptr @__dfsan_arg_origin_tls, i64 0, i64 2), align 4 21 ; NO_TRACK_CONTROL_FLOW: [[TO:%.*]] = load i32, ptr getelementptr inbounds ([200 x i32], ptr @__dfsan_arg_origin_tls, i64 0, i64 1), align 4 22 ; NO_TRACK_CONTROL_FLOW: [[TFO:%.*]] = select i1 %c, i32 [[TO]], i32 [[FO]] 23 ; NO_TRACK_CONTROL_FLOW: store i32 [[TFO]], ptr @__dfsan_retval_origin_tls, align 4 24 25 %a = select i1 %c, i8 %t, i8 %f 26 ret i8 %a 27} 28 29define i8 @select8e(i1 %c, i8 %tf) { 30 ; TRACK_CONTROL_FLOW: @select8e.dfsan 31 ; TRACK_CONTROL_FLOW: [[CO:%.*]] = load i32, ptr @__dfsan_arg_origin_tls, align 4 32 ; TRACK_CONTROL_FLOW: [[TFO:%.*]] = load i32, ptr getelementptr inbounds ([200 x i32], ptr @__dfsan_arg_origin_tls, i64 0, i64 1), align 4 33 ; TRACK_CONTROL_FLOW: [[CS:%.*]] = load i8, ptr @__dfsan_arg_tls, align 2 34 ; TRACK_CONTROL_FLOW: [[CS_NE:%.*]] = icmp ne i8 [[CS]], 0 35 ; TRACK_CONTROL_FLOW: [[CTFO:%.*]] = select i1 [[CS_NE]], i32 [[CO]], i32 [[TFO]] 36 ; TRACK_CONTROL_FLOW: store i32 [[CTFO]], ptr @__dfsan_retval_origin_tls, align 4 37 38 ; NO_TRACK_CONTROL_FLOW: @select8e.dfsan 39 ; NO_TRACK_CONTROL_FLOW: [[TFO:%.*]] = load i32, ptr getelementptr inbounds ([200 x i32], ptr @__dfsan_arg_origin_tls, i64 0, i64 1), align 4 40 ; NO_TRACK_CONTROL_FLOW: store i32 [[TFO]], ptr @__dfsan_retval_origin_tls, align 4 41 42%a = select i1 %c, i8 %tf, i8 %tf 43 ret i8 %a 44} 45 46define <4 x i8> @select8v(<4 x i1> %c, <4 x i8> %t, <4 x i8> %f) { 47 ; TRACK_CONTROL_FLOW: @select8v.dfsan 48 ; TRACK_CONTROL_FLOW: [[CO:%.*]] = load i32, ptr @__dfsan_arg_origin_tls, align 4 49 ; TRACK_CONTROL_FLOW: [[FO:%.*]] = load i32, ptr getelementptr inbounds ([200 x i32], ptr @__dfsan_arg_origin_tls, i64 0, i64 2), align 4 50 ; TRACK_CONTROL_FLOW: [[TO:%.*]] = load i32, ptr getelementptr inbounds ([200 x i32], ptr @__dfsan_arg_origin_tls, i64 0, i64 1), align 4 51 ; TRACK_CONTROL_FLOW: [[FS:%.*]] = load i8, ptr inttoptr (i64 add (i64 ptrtoint (ptr @__dfsan_arg_tls to i64), i64 4) to ptr), align 2 52 ; TRACK_CONTROL_FLOW: [[CS:%.*]] = load i8, ptr @__dfsan_arg_tls, align 2 53 ; TRACK_CONTROL_FLOW: [[FS_NE:%.*]] = icmp ne i8 [[FS]], 0 54 ; TRACK_CONTROL_FLOW: [[FTO:%.*]] = select i1 [[FS_NE]], i32 [[FO]], i32 [[TO]] 55 ; TRACK_CONTROL_FLOW: [[CS_NE:%.*]] = icmp ne i8 [[CS]], 0 56 ; TRACK_CONTROL_FLOW: [[CFTO:%.*]] = select i1 [[CS_NE]], i32 [[CO]], i32 [[FTO]] 57 ; TRACK_CONTROL_FLOW: store i32 [[CFTO]], ptr @__dfsan_retval_origin_tls, align 4 58 59 ; NO_TRACK_CONTROL_FLOW: @select8v.dfsan 60 ; NO_TRACK_CONTROL_FLOW: [[FO:%.*]] = load i32, ptr getelementptr inbounds ([200 x i32], ptr @__dfsan_arg_origin_tls, i64 0, i64 2), align 4 61 ; NO_TRACK_CONTROL_FLOW: [[TO:%.*]] = load i32, ptr getelementptr inbounds ([200 x i32], ptr @__dfsan_arg_origin_tls, i64 0, i64 1), align 4 62 ; NO_TRACK_CONTROL_FLOW: [[FS:%.*]] = load i8, ptr inttoptr (i64 add (i64 ptrtoint (ptr @__dfsan_arg_tls to i64), i64 4) to ptr), align 2 63 ; NO_TRACK_CONTROL_FLOW: [[FS_NE:%.*]] = icmp ne i8 [[FS]], 0 64 ; NO_TRACK_CONTROL_FLOW: [[FTO:%.*]] = select i1 [[FS_NE]], i32 [[FO]], i32 [[TO]] 65 ; NO_TRACK_CONTROL_FLOW: store i32 [[FTO]], ptr @__dfsan_retval_origin_tls, align 4 66 67 %a = select <4 x i1> %c, <4 x i8> %t, <4 x i8> %f 68 ret <4 x i8> %a 69}