1; RUN: opt < %s -dfsan -dfsan-track-select-control-flow=1 -S | FileCheck %s --check-prefix=TRACK_CONTROL_FLOW 2; RUN: opt < %s -dfsan -dfsan-track-select-control-flow=0 -S | FileCheck %s --check-prefix=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 6define i8 @select8(i1 %c, i8 %t, i8 %f) { 7 ; TRACK_CONTROL_FLOW: @"dfs$select8" 8 ; TRACK_CONTROL_FLOW: %1 = load i16, i16* inttoptr (i64 add (i64 ptrtoint ([[ARGTLSTYPE:\[100 x i64\]]]* @__dfsan_arg_tls to i64), i64 4) to i16*), align [[ALIGN:2]] 9 ; TRACK_CONTROL_FLOW: %2 = load i16, i16* inttoptr (i64 add (i64 ptrtoint ([[ARGTLSTYPE]]* @__dfsan_arg_tls to i64), i64 2) to i16*), align [[ALIGN]] 10 ; TRACK_CONTROL_FLOW: %3 = load i16, i16* bitcast ([[ARGTLSTYPE]]* @__dfsan_arg_tls to i16*), align [[ALIGN]] 11 ; TRACK_CONTROL_FLOW: %4 = select i1 %c, i16 %2, i16 %1 12 ; TRACK_CONTROL_FLOW: %5 = icmp ne i16 %3, %4 13 ; TRACK_CONTROL_FLOW: %7 = call {{.*}} i16 @__dfsan_union(i16 {{.*}} %3, i16 {{.*}} %4) 14 ; TRACK_CONTROL_FLOW: %9 = phi i16 [ %7, {{.*}} ], [ %3, {{.*}} ] 15 ; TRACK_CONTROL_FLOW: %a = select i1 %c, i8 %t, i8 %f 16 ; TRACK_CONTROL_FLOW: store i16 %9, i16* bitcast ([100 x i64]* @__dfsan_retval_tls to i16*), align [[ALIGN]] 17 ; TRACK_CONTROL_FLOW: ret i8 %a 18 19 ; NO_TRACK_CONTROL_FLOW: @"dfs$select8" 20 ; NO_TRACK_CONTROL_FLOW: %1 = load i16, i16* inttoptr (i64 add (i64 ptrtoint ([[ARGTLSTYPE:\[100 x i64\]]]* @__dfsan_arg_tls to i64), i64 4) to i16*), align [[ALIGN:2]] 21 ; NO_TRACK_CONTROL_FLOW: %2 = load i16, i16* inttoptr (i64 add (i64 ptrtoint ([[ARGTLSTYPE]]* @__dfsan_arg_tls to i64), i64 2) to i16*), align [[ALIGN]] 22 ; NO_TRACK_CONTROL_FLOW: %3 = load i16, i16* bitcast ([[ARGTLSTYPE]]* @__dfsan_arg_tls to i16*), align [[ALIGN]] 23 ; NO_TRACK_CONTROL_FLOW: %4 = select i1 %c, i16 %2, i16 %1 24 ; NO_TRACK_CONTROL_FLOW: %a = select i1 %c, i8 %t, i8 %f 25 ; NO_TRACK_CONTROL_FLOW: store i16 %4, i16* bitcast ([100 x i64]* @__dfsan_retval_tls to i16*), align [[ALIGN]] 26 ; NO_TRACK_CONTROL_FLOW: 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_CONTROL_FLOW: @"dfs$select8e" 34 ; TRACK_CONTROL_FLOW: %1 = load i16, i16* inttoptr (i64 add (i64 ptrtoint ([[ARGTLSTYPE]]* @__dfsan_arg_tls to i64), i64 2) to i16*), align [[ALIGN]] 35 ; TRACK_CONTROL_FLOW: %2 = load i16, i16* bitcast ([[ARGTLSTYPE]]* @__dfsan_arg_tls to i16*), align [[ALIGN]] 36 ; TRACK_CONTROL_FLOW: %3 = icmp ne i16 %2, %1 37 ; TRACK_CONTROL_FLOW: %5 = call {{.*}} i16 @__dfsan_union(i16 {{.*}} %2, i16 {{.*}} %1) 38 ; TRACK_CONTROL_FLOW: %7 = phi i16 [ %5, {{.*}} ], [ %2, {{.*}} ] 39 ; TRACK_CONTROL_FLOW: %a = select i1 %c, i8 %tf, i8 %tf 40 ; TRACK_CONTROL_FLOW: store i16 %7, i16* bitcast ([100 x i64]* @__dfsan_retval_tls to i16*), align [[ALIGN]] 41 ; TRACK_CONTROL_FLOW: ret i8 %a 42 43 ; NO_TRACK_CONTROL_FLOW: @"dfs$select8e" 44 ; NO_TRACK_CONTROL_FLOW: %1 = load i16, i16* inttoptr (i64 add (i64 ptrtoint ([[ARGTLSTYPE]]* @__dfsan_arg_tls to i64), i64 2) to i16*), align [[ALIGN]] 45 ; NO_TRACK_CONTROL_FLOW: %2 = load i16, i16* bitcast ([[ARGTLSTYPE]]* @__dfsan_arg_tls to i16*), align [[ALIGN]] 46 ; NO_TRACK_CONTROL_FLOW: %a = select i1 %c, i8 %tf, i8 %tf 47 ; NO_TRACK_CONTROL_FLOW: store i16 %1, i16* bitcast ([100 x i64]* @__dfsan_retval_tls to i16*), align [[ALIGN]] 48 ; NO_TRACK_CONTROL_FLOW: ret i8 %a 49 50 %a = select i1 %c, i8 %tf, i8 %tf 51 ret i8 %a 52} 53 54define <4 x i8> @select8v(<4 x i1> %c, <4 x i8> %t, <4 x i8> %f) { 55 ; TRACK_CONTROL_FLOW: @"dfs$select8v" 56 ; TRACK_CONTROL_FLOW: %1 = load i16, i16* inttoptr (i64 add (i64 ptrtoint ([[ARGTLSTYPE:\[100 x i64\]]]* @__dfsan_arg_tls to i64), i64 4) to i16*), align [[ALIGN:2]] 57 ; TRACK_CONTROL_FLOW: %2 = load i16, i16* inttoptr (i64 add (i64 ptrtoint ([[ARGTLSTYPE]]* @__dfsan_arg_tls to i64), i64 2) to i16*), align [[ALIGN]] 58 ; TRACK_CONTROL_FLOW: %3 = load i16, i16* bitcast ([[ARGTLSTYPE]]* @__dfsan_arg_tls to i16*), align [[ALIGN]] 59 ; TRACK_CONTROL_FLOW: %4 = icmp ne i16 %2, %1 60 ; TRACK_CONTROL_FLOW: %6 = call {{.*}} i16 @__dfsan_union(i16 {{.*}} %2, i16 zeroext %1) 61 ; TRACK_CONTROL_FLOW: %8 = phi i16 [ %6, {{.*}} ], [ %2, {{.*}} ] 62 ; TRACK_CONTROL_FLOW: %9 = icmp ne i16 %3, %8 63 ; TRACK_CONTROL_FLOW: %11 = call {{.*}} i16 @__dfsan_union(i16 {{.*}} %3, i16 zeroext %8) 64 ; TRACK_CONTROL_FLOW: %13 = phi i16 [ %11, {{.*}} ], [ %3, {{.*}} ] 65 ; TRACK_CONTROL_FLOW: %a = select <4 x i1> %c, <4 x i8> %t, <4 x i8> %f 66 ; TRACK_CONTROL_FLOW: store i16 %13, i16* bitcast ([100 x i64]* @__dfsan_retval_tls to i16*), align [[ALIGN]] 67 ; TRACK_CONTROL_FLOW: ret <4 x i8> %a 68 69 ; NO_TRACK_CONTROL_FLOW: @"dfs$select8v" 70 ; NO_TRACK_CONTROL_FLOW: %1 = load i16, i16* inttoptr (i64 add (i64 ptrtoint ([[ARGTLSTYPE:\[100 x i64\]]]* @__dfsan_arg_tls to i64), i64 4) to i16*), align [[ALIGN:2]] 71 ; NO_TRACK_CONTROL_FLOW: %2 = load i16, i16* inttoptr (i64 add (i64 ptrtoint ([[ARGTLSTYPE]]* @__dfsan_arg_tls to i64), i64 2) to i16*), align [[ALIGN]] 72 ; NO_TRACK_CONTROL_FLOW: %3 = load i16, i16* bitcast ([[ARGTLSTYPE]]* @__dfsan_arg_tls to i16*), align [[ALIGN]] 73 ; NO_TRACK_CONTROL_FLOW: %4 = icmp ne i16 %2, %1 74 ; NO_TRACK_CONTROL_FLOW: %6 = call {{.*}} i16 @__dfsan_union(i16 {{.*}} %2, i16 {{.*}} %1) 75 ; NO_TRACK_CONTROL_FLOW: %8 = phi i16 [ %6, {{.*}} ], [ %2, {{.*}} ] 76 ; NO_TRACK_CONTROL_FLOW: %a = select <4 x i1> %c, <4 x i8> %t, <4 x i8> %f 77 ; NO_TRACK_CONTROL_FLOW: store i16 %8, i16* bitcast ([100 x i64]* @__dfsan_retval_tls to i16*), align [[ALIGN]] 78 ; NO_TRACK_CONTROL_FLOW: ret <4 x i8> %a 79 80 %a = select <4 x i1> %c, <4 x i8> %t, <4 x i8> %f 81 ret <4 x i8> %a 82}