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1; RUN: opt < %s -passes=dfsan -dfsan-track-select-control-flow=1 -dfsan-track-origins=1 -S | FileCheck %s --check-prefixes=CHECK,TRACK_CONTROL_FLOW2; RUN: opt < %s -passes=dfsan -dfsan-track-select-control-flow=0 -dfsan-track-origins=1 -S | FileCheck %s --check-prefixes=CHECK,NO_TRACK_CONTROL_FLOW3target 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.dfsan10 ; TRACK_CONTROL_FLOW: [[CO:%.*]] = load i32, ptr @__dfsan_arg_origin_tls, align 411 ; TRACK_CONTROL_FLOW: [[FO:%.*]] = load i32, ptr getelementptr inbounds ([200 x i32], ptr @__dfsan_arg_origin_tls, i64 0, i64 2), align 412 ; TRACK_CONTROL_FLOW: [[TO:%.*]] = load i32, ptr getelementptr inbounds ([200 x i32], ptr @__dfsan_arg_origin_tls, i64 0, i64 1), align 413 ; TRACK_CONTROL_FLOW: [[CS:%.*]] = load i8, ptr @__dfsan_arg_tls, align 214 ; TRACK_CONTROL_FLOW: [[TFO:%.*]] = select i1 %c, i32 [[TO]], i32 [[FO]]15 ; TRACK_CONTROL_FLOW: [[CS_NE:%.*]] = icmp ne i8 [[CS]], 016 ; 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 418 19 ; NO_TRACK_CONTROL_FLOW: @select8.dfsan20 ; NO_TRACK_CONTROL_FLOW: [[FO:%.*]] = load i32, ptr getelementptr inbounds ([200 x i32], ptr @__dfsan_arg_origin_tls, i64 0, i64 2), align 421 ; NO_TRACK_CONTROL_FLOW: [[TO:%.*]] = load i32, ptr getelementptr inbounds ([200 x i32], ptr @__dfsan_arg_origin_tls, i64 0, i64 1), align 422 ; 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 424 25 %a = select i1 %c, i8 %t, i8 %f26 ret i8 %a27}28 29define i8 @select8e(i1 %c, i8 %tf) {30 ; TRACK_CONTROL_FLOW: @select8e.dfsan31 ; TRACK_CONTROL_FLOW: [[CO:%.*]] = load i32, ptr @__dfsan_arg_origin_tls, align 432 ; TRACK_CONTROL_FLOW: [[TFO:%.*]] = load i32, ptr getelementptr inbounds ([200 x i32], ptr @__dfsan_arg_origin_tls, i64 0, i64 1), align 433 ; TRACK_CONTROL_FLOW: [[CS:%.*]] = load i8, ptr @__dfsan_arg_tls, align 234 ; TRACK_CONTROL_FLOW: [[CS_NE:%.*]] = icmp ne i8 [[CS]], 035 ; 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 437 38 ; NO_TRACK_CONTROL_FLOW: @select8e.dfsan39 ; NO_TRACK_CONTROL_FLOW: [[TFO:%.*]] = load i32, ptr getelementptr inbounds ([200 x i32], ptr @__dfsan_arg_origin_tls, i64 0, i64 1), align 440 ; NO_TRACK_CONTROL_FLOW: store i32 [[TFO]], ptr @__dfsan_retval_origin_tls, align 441 42%a = select i1 %c, i8 %tf, i8 %tf43 ret i8 %a44}45 46define <4 x i8> @select8v(<4 x i1> %c, <4 x i8> %t, <4 x i8> %f) {47 ; TRACK_CONTROL_FLOW: @select8v.dfsan48 ; TRACK_CONTROL_FLOW: [[CO:%.*]] = load i32, ptr @__dfsan_arg_origin_tls, align 449 ; TRACK_CONTROL_FLOW: [[FO:%.*]] = load i32, ptr getelementptr inbounds ([200 x i32], ptr @__dfsan_arg_origin_tls, i64 0, i64 2), align 450 ; TRACK_CONTROL_FLOW: [[TO:%.*]] = load i32, ptr getelementptr inbounds ([200 x i32], ptr @__dfsan_arg_origin_tls, i64 0, i64 1), align 451 ; TRACK_CONTROL_FLOW: [[FS:%.*]] = load i8, ptr getelementptr (i8, ptr @__dfsan_arg_tls, i64 4), align 252 ; TRACK_CONTROL_FLOW: [[CS:%.*]] = load i8, ptr @__dfsan_arg_tls, align 253 ; TRACK_CONTROL_FLOW: [[FS_NE:%.*]] = icmp ne i8 [[FS]], 054 ; TRACK_CONTROL_FLOW: [[FTO:%.*]] = select i1 [[FS_NE]], i32 [[FO]], i32 [[TO]]55 ; TRACK_CONTROL_FLOW: [[CS_NE:%.*]] = icmp ne i8 [[CS]], 056 ; 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 458 59 ; NO_TRACK_CONTROL_FLOW: @select8v.dfsan60 ; NO_TRACK_CONTROL_FLOW: [[FO:%.*]] = load i32, ptr getelementptr inbounds ([200 x i32], ptr @__dfsan_arg_origin_tls, i64 0, i64 2), align 461 ; NO_TRACK_CONTROL_FLOW: [[TO:%.*]] = load i32, ptr getelementptr inbounds ([200 x i32], ptr @__dfsan_arg_origin_tls, i64 0, i64 1), align 462 ; NO_TRACK_CONTROL_FLOW: [[FS:%.*]] = load i8, ptr getelementptr (i8, ptr @__dfsan_arg_tls, i64 4), align 263 ; NO_TRACK_CONTROL_FLOW: [[FS_NE:%.*]] = icmp ne i8 [[FS]], 064 ; 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 466 67 %a = select <4 x i1> %c, <4 x i8> %t, <4 x i8> %f68 ret <4 x i8> %a69}70