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llvm-mirror/test/Instrumentation/DataFlowSanitizer/select.ll

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[dfsan] Increase coverage of vector and select tests Add more expectations in vector.ll and select.ll based on command-line option combinations. Also, remove hard-coded shadow width references to enable fast8 transition. Reviewed By: stephan.yichao.zhao Differential Revision: https://reviews.llvm.org/D97903
2021-03-04 03:03:04 +01:00
; 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
Add a flag to control whether to propagate labels from condition values to results Before the change, DFSan always does the propagation. W/o origin tracking, it is harder to understand such flows. After the change, the flag is off by default. Reviewed-by: morehouse Differential Revision: https://reviews.llvm.org/D91234
2020-11-11 07:13:06 +01:00
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"
[dfsan] Increase coverage of vector and select tests Add more expectations in vector.ll and select.ll based on command-line option combinations. Also, remove hard-coded shadow width references to enable fast8 transition. Reviewed By: stephan.yichao.zhao Differential Revision: https://reviews.llvm.org/D97903
2021-03-04 03:03:04 +01:00
; 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:]]
Add a flag to control whether to propagate labels from condition values to results Before the change, DFSan always does the propagation. W/o origin tracking, it is harder to understand such flows. After the change, the flag is off by default. Reviewed-by: morehouse Differential Revision: https://reviews.llvm.org/D91234
2020-11-11 07:13:06 +01:00
define i8 @select8(i1 %c, i8 %t, i8 %f) {
[dfsan] Increase coverage of vector and select tests Add more expectations in vector.ll and select.ll based on command-line option combinations. Also, remove hard-coded shadow width references to enable fast8 transition. Reviewed By: stephan.yichao.zhao Differential Revision: https://reviews.llvm.org/D97903
2021-03-04 03:03:04 +01:00
; 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
Add a flag to control whether to propagate labels from condition values to results Before the change, DFSan always does the propagation. W/o origin tracking, it is harder to understand such flows. After the change, the flag is off by default. Reviewed-by: morehouse Differential Revision: https://reviews.llvm.org/D91234
2020-11-11 07:13:06 +01:00
%a = select i1 %c, i8 %t, i8 %f
ret i8 %a
}
define i8 @select8e(i1 %c, i8 %tf) {
[dfsan] Increase coverage of vector and select tests Add more expectations in vector.ll and select.ll based on command-line option combinations. Also, remove hard-coded shadow width references to enable fast8 transition. Reviewed By: stephan.yichao.zhao Differential Revision: https://reviews.llvm.org/D97903
2021-03-04 03:03:04 +01:00
; 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
Add a flag to control whether to propagate labels from condition values to results Before the change, DFSan always does the propagation. W/o origin tracking, it is harder to understand such flows. After the change, the flag is off by default. Reviewed-by: morehouse Differential Revision: https://reviews.llvm.org/D91234
2020-11-11 07:13:06 +01:00
%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) {
[dfsan] Increase coverage of vector and select tests Add more expectations in vector.ll and select.ll based on command-line option combinations. Also, remove hard-coded shadow width references to enable fast8 transition. Reviewed By: stephan.yichao.zhao Differential Revision: https://reviews.llvm.org/D97903
2021-03-04 03:03:04 +01:00
; 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
Add a flag to control whether to propagate labels from condition values to results Before the change, DFSan always does the propagation. W/o origin tracking, it is harder to understand such flows. After the change, the flag is off by default. Reviewed-by: morehouse Differential Revision: https://reviews.llvm.org/D91234
2020-11-11 07:13:06 +01:00
[dfsan] Increase coverage of vector and select tests Add more expectations in vector.ll and select.ll based on command-line option combinations. Also, remove hard-coded shadow width references to enable fast8 transition. Reviewed By: stephan.yichao.zhao Differential Revision: https://reviews.llvm.org/D97903
2021-03-04 03:03:04 +01:00
; 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
Add a flag to control whether to propagate labels from condition values to results Before the change, DFSan always does the propagation. W/o origin tracking, it is harder to understand such flows. After the change, the flag is off by default. Reviewed-by: morehouse Differential Revision: https://reviews.llvm.org/D91234
2020-11-11 07:13:06 +01:00
%a = select <4 x i1> %c, <4 x i8> %t, <4 x i8> %f
ret <4 x i8> %a
[dfsan] Increase coverage of vector and select tests Add more expectations in vector.ll and select.ll based on command-line option combinations. Also, remove hard-coded shadow width references to enable fast8 transition. Reviewed By: stephan.yichao.zhao Differential Revision: https://reviews.llvm.org/D97903
2021-03-04 03:03:04 +01:00
}
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