| ; RUN: opt < %s -dfsan -dfsan-track-select-control-flow=1 -S | FileCheck %s --check-prefixes=CHECK,TRACK_CF,TRACK_CF_LEGACY |
| ; RUN: opt < %s -dfsan -dfsan-track-select-control-flow=0 -S | FileCheck %s --check-prefixes=CHECK,NO_TRACK_CF,NO_TRACK_CF_LEGACY |
| ; RUN: opt < %s -dfsan -dfsan-fast-16-labels -dfsan-track-select-control-flow=1 -S | FileCheck %s --check-prefixes=CHECK,TRACK_CF,TRACK_CF_FAST |
| ; RUN: opt < %s -dfsan -dfsan-fast-16-labels -dfsan-track-select-control-flow=0 -S | FileCheck %s --check-prefixes=CHECK,NO_TRACK_CF,NO_TRACK_CF_FAST |
| ; RUN: opt < %s -dfsan -dfsan-fast-8-labels -dfsan-track-select-control-flow=1 -S | FileCheck %s --check-prefixes=CHECK,TRACK_CF,TRACK_CF_FAST |
| ; RUN: opt < %s -dfsan -dfsan-fast-8-labels -dfsan-track-select-control-flow=0 -S | FileCheck %s --check-prefixes=CHECK,NO_TRACK_CF,NO_TRACK_CF_FAST |
| 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" |
| |
| ; CHECK: @__dfsan_arg_tls = external thread_local(initialexec) global [[TLS_ARR:\[100 x i64\]]] |
| ; CHECK: @__dfsan_retval_tls = external thread_local(initialexec) global [[TLS_ARR]] |
| ; CHECK: @__dfsan_shadow_width_bits = weak_odr constant i32 [[#SBITS:]] |
| ; CHECK: @__dfsan_shadow_width_bytes = weak_odr constant i32 [[#SBYTES:]] |
| |
| define i8 @select8(i1 %c, i8 %t, i8 %f) { |
| ; TRACK_CF: @"dfs$select8" |
| ; TRACK_CF: %[[#R:]] = load i[[#SBITS]], i[[#SBITS]]* inttoptr (i64 add (i64 ptrtoint ([[TLS_ARR]]* @__dfsan_arg_tls to i64), i64 4) to i[[#SBITS]]*), align [[ALIGN:2]] |
| ; TRACK_CF: %[[#R+1]] = load i[[#SBITS]], i[[#SBITS]]* inttoptr (i64 add (i64 ptrtoint ([[TLS_ARR]]* @__dfsan_arg_tls to i64), i64 2) to i[[#SBITS]]*), align [[ALIGN]] |
| ; TRACK_CF: %[[#R+2]] = load i[[#SBITS]], i[[#SBITS]]* bitcast ([[TLS_ARR]]* @__dfsan_arg_tls to i[[#SBITS]]*), align [[ALIGN]] |
| ; TRACK_CF: %[[#R+3]] = select i1 %c, i[[#SBITS]] %[[#R+1]], i[[#SBITS]] %[[#R]] |
| ; TRACK_CF_LEGACY: %[[#R+4]] = icmp ne i[[#SBITS]] %[[#R+2]], %[[#R+3]] |
| ; TRACK_CF_LEGACY: %[[#R+6]] = call {{.*}} i[[#SBITS]] @__dfsan_union(i[[#SBITS]] {{.*}} %[[#R+2]], i[[#SBITS]] {{.*}} %[[#R+3]]) |
| ; TRACK_CF_LEGACY: %[[#RO:]] = phi i[[#SBITS]] [ %[[#R+6]], {{.*}} ], [ %[[#R+2]], {{.*}} ] |
| ; COMM: The union is simply an OR when fast labels are used. |
| ; TRACK_CF_FAST: %[[#RO:]] = or i[[#SBITS]] %[[#R+2]], %[[#R+3]] |
| ; TRACK_CF: %a = select i1 %c, i8 %t, i8 %f |
| ; TRACK_CF: store i[[#SBITS]] %[[#RO]], i[[#SBITS]]* bitcast ([100 x i64]* @__dfsan_retval_tls to i[[#SBITS]]*), align [[ALIGN]] |
| ; TRACK_CF: ret i8 %a |
| |
| ; NO_TRACK_CF: @"dfs$select8" |
| ; NO_TRACK_CF: %[[#R:]] = load i[[#SBITS]], i[[#SBITS]]* inttoptr (i64 add (i64 ptrtoint ([[TLS_ARR]]* @__dfsan_arg_tls to i64), i64 4) to i[[#SBITS]]*), align [[ALIGN:2]] |
| ; NO_TRACK_CF: %[[#R+1]] = load i[[#SBITS]], i[[#SBITS]]* inttoptr (i64 add (i64 ptrtoint ([[TLS_ARR]]* @__dfsan_arg_tls to i64), i64 2) to i[[#SBITS]]*), align [[ALIGN]] |
| ; NO_TRACK_CF: %[[#R+2]] = load i[[#SBITS]], i[[#SBITS]]* bitcast ([[TLS_ARR]]* @__dfsan_arg_tls to i[[#SBITS]]*), align [[ALIGN]] |
| ; NO_TRACK_CF: %[[#R+3]] = select i1 %c, i[[#SBITS]] %[[#R+1]], i[[#SBITS]] %[[#R]] |
| ; NO_TRACK_CF: %a = select i1 %c, i8 %t, i8 %f |
| ; NO_TRACK_CF: store i[[#SBITS]] %[[#R+3]], i[[#SBITS]]* bitcast ([100 x i64]* @__dfsan_retval_tls to i[[#SBITS]]*), align [[ALIGN]] |
| ; NO_TRACK_CF: ret i8 %a |
| |
| %a = select i1 %c, i8 %t, i8 %f |
| ret i8 %a |
| } |
| |
| define i8 @select8e(i1 %c, i8 %tf) { |
| ; TRACK_CF: @"dfs$select8e" |
| ; TRACK_CF: %[[#R:]] = load i[[#SBITS]], i[[#SBITS]]* inttoptr (i64 add (i64 ptrtoint ([[TLS_ARR]]* @__dfsan_arg_tls to i64), i64 2) to i[[#SBITS]]*), align [[ALIGN]] |
| ; TRACK_CF: %[[#R+1]] = load i[[#SBITS]], i[[#SBITS]]* bitcast ([[TLS_ARR]]* @__dfsan_arg_tls to i[[#SBITS]]*), align [[ALIGN]] |
| ; TRACK_CF_LEGACY: %[[#R+2]] = icmp ne i[[#SBITS]] %[[#R+1]], %[[#R]] |
| ; TRACK_CF_LEGACY: %[[#R+4]] = call {{.*}} i[[#SBITS]] @__dfsan_union(i[[#SBITS]] {{.*}} %[[#R+1]], i[[#SBITS]] {{.*}} %[[#R]]) |
| ; TRACK_CF_LEGACY: %[[#RO:]] = phi i[[#SBITS]] [ %[[#R+4]], {{.*}} ], [ %[[#R+1]], {{.*}} ] |
| ; COMM: The union is simply an OR when fast labels are used. |
| ; TRACK_CF_FAST: %[[#RO:]] = or i[[#SBITS]] %[[#R+1]], %[[#R]] |
| ; TRACK_CF: %a = select i1 %c, i8 %tf, i8 %tf |
| ; TRACK_CF: store i[[#SBITS]] %[[#RO]], i[[#SBITS]]* bitcast ([100 x i64]* @__dfsan_retval_tls to i[[#SBITS]]*), align [[ALIGN]] |
| ; TRACK_CF: ret i8 %a |
| |
| ; NO_TRACK_CF: @"dfs$select8e" |
| ; NO_TRACK_CF: %[[#R:]] = load i[[#SBITS]], i[[#SBITS]]* inttoptr (i64 add (i64 ptrtoint ([[TLS_ARR]]* @__dfsan_arg_tls to i64), i64 2) to i[[#SBITS]]*), align [[ALIGN]] |
| ; NO_TRACK_CF: %[[#R+1]] = load i[[#SBITS]], i[[#SBITS]]* bitcast ([[TLS_ARR]]* @__dfsan_arg_tls to i[[#SBITS]]*), align [[ALIGN]] |
| ; NO_TRACK_CF: %a = select i1 %c, i8 %tf, i8 %tf |
| ; NO_TRACK_CF: store i[[#SBITS]] %[[#R]], i[[#SBITS]]* bitcast ([[TLS_ARR]]* @__dfsan_retval_tls to i[[#SBITS]]*), align [[ALIGN]] |
| ; NO_TRACK_CF: ret i8 %a |
| |
| %a = select i1 %c, i8 %tf, i8 %tf |
| ret i8 %a |
| } |
| |
| define <4 x i8> @select8v(<4 x i1> %c, <4 x i8> %t, <4 x i8> %f) { |
| ; TRACK_CF: @"dfs$select8v" |
| ; TRACK_CF: %[[#R:]] = load i[[#SBITS]], i[[#SBITS]]* inttoptr (i64 add (i64 ptrtoint ([[TLS_ARR]]* @__dfsan_arg_tls to i64), i64 4) to i[[#SBITS]]*), align [[ALIGN:2]] |
| ; TRACK_CF: %[[#R+1]] = load i[[#SBITS]], i[[#SBITS]]* inttoptr (i64 add (i64 ptrtoint ([[TLS_ARR]]* @__dfsan_arg_tls to i64), i64 2) to i[[#SBITS]]*), align [[ALIGN]] |
| ; TRACK_CF: %[[#R+2]] = load i[[#SBITS]], i[[#SBITS]]* bitcast ([[TLS_ARR]]* @__dfsan_arg_tls to i[[#SBITS]]*), align [[ALIGN]] |
| ; TRACK_CF_LEGACY: %[[#R+3]] = icmp ne i[[#SBITS]] %[[#R+1]], %[[#R]] |
| ; TRACK_CF_LEGACY: %[[#R+5]] = call {{.*}} i[[#SBITS]] @__dfsan_union(i[[#SBITS]] {{.*}} %[[#R+1]], i[[#SBITS]] zeroext %[[#R]]) |
| ; TRACK_CF_LEGACY: %[[#R+7]] = phi i[[#SBITS]] [ %[[#R+5]], {{.*}} ], [ %[[#R+1]], {{.*}} ] |
| ; TRACK_CF_LEGACY: %[[#R+8]] = icmp ne i[[#SBITS]] %[[#R+2]], %[[#R+7]] |
| ; TRACK_CF_LEGACY: %[[#R+10]] = call {{.*}} i[[#SBITS]] @__dfsan_union(i[[#SBITS]] {{.*}} %[[#R+2]], i[[#SBITS]] zeroext %[[#R+7]]) |
| ; TRACK_CF_LEGACY: %[[#RO:]] = phi i[[#SBITS]] [ %[[#R+10]], {{.*}} ], [ %[[#R+2]], {{.*}} ] |
| ; COMM: The union is simply an OR when fast labels are used. |
| ; TRACK_CF_FAST: %[[#R+3]] = or i[[#SBITS]] %[[#R+1]], %[[#R]] |
| ; TRACK_CF_FAST: %[[#RO:]] = or i[[#SBITS]] %[[#R+2]], %[[#R+3]] |
| ; TRACK_CF: %a = select <4 x i1> %c, <4 x i8> %t, <4 x i8> %f |
| ; TRACK_CF: store i[[#SBITS]] %[[#RO]], i[[#SBITS]]* bitcast ([100 x i64]* @__dfsan_retval_tls to i[[#SBITS]]*), align [[ALIGN]] |
| ; TRACK_CF: ret <4 x i8> %a |
| |
| ; NO_TRACK_CF: @"dfs$select8v" |
| ; NO_TRACK_CF: %[[#R:]] = load i[[#SBITS]], i[[#SBITS]]* inttoptr (i64 add (i64 ptrtoint ([[TLS_ARR]]* @__dfsan_arg_tls to i64), i64 4) to i[[#SBITS]]*), align [[ALIGN:2]] |
| ; NO_TRACK_CF: %[[#R+1]] = load i[[#SBITS]], i[[#SBITS]]* inttoptr (i64 add (i64 ptrtoint ([[TLS_ARR]]* @__dfsan_arg_tls to i64), i64 2) to i[[#SBITS]]*), align [[ALIGN]] |
| ; NO_TRACK_CF: %[[#R+2]] = load i[[#SBITS]], i[[#SBITS]]* bitcast ([[TLS_ARR]]* @__dfsan_arg_tls to i[[#SBITS]]*), align [[ALIGN]] |
| ; NO_TRACK_CF_LEGACY: %[[#R+3]] = icmp ne i[[#SBITS]] %[[#R+1]], %[[#R]] |
| ; NO_TRACK_CF_LEGACY: %[[#R+5]] = call {{.*}} i[[#SBITS]] @__dfsan_union(i[[#SBITS]] {{.*}} %[[#R+1]], i[[#SBITS]] {{.*}} %[[#R]]) |
| ; NO_TRACK_CF_LEGACY: %[[#RO:]] = phi i[[#SBITS]] [ %6, {{.*}} ], [ %2, {{.*}} ] |
| ; COMM: The union is simply an OR when fast labels are used. |
| ; NO_TRACK_CF_FAST: %[[#RO:]] = or i[[#SBITS]] %[[#R+1]], %[[#R]] |
| ; NO_TRACK_CF: %a = select <4 x i1> %c, <4 x i8> %t, <4 x i8> %f |
| ; NO_TRACK_CF: store i[[#SBITS]] %[[#RO]], i[[#SBITS]]* bitcast ([100 x i64]* @__dfsan_retval_tls to i[[#SBITS]]*), align [[ALIGN]] |
| ; NO_TRACK_CF: ret <4 x i8> %a |
| |
| %a = select <4 x i1> %c, <4 x i8> %t, <4 x i8> %f |
| ret <4 x i8> %a |
| } |