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llvm-project/llvm/test/Instrumentation/DataFlowSanitizer/arith.ll

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DataFlowSanitizer; LLVM changes. DataFlowSanitizer is a generalised dynamic data flow analysis. Unlike other Sanitizer tools, this tool is not designed to detect a specific class of bugs on its own. Instead, it provides a generic dynamic data flow analysis framework to be used by clients to help detect application-specific issues within their own code. Differential Revision: http://llvm-reviews.chandlerc.com/D965 llvm-svn: 187923
2013-08-08 06:47:18 +08:00
; RUN: opt < %s -dfsan -S | FileCheck %s
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"
Add target triples to all dfsan tests. llvm-svn: 223536
2014-12-06 06:32:30 +08:00
target triple = "x86_64-unknown-linux-gnu"
DataFlowSanitizer; LLVM changes. DataFlowSanitizer is a generalised dynamic data flow analysis. Unlike other Sanitizer tools, this tool is not designed to detect a specific class of bugs on its own. Instead, it provides a generic dynamic data flow analysis framework to be used by clients to help detect application-specific issues within their own code. Differential Revision: http://llvm-reviews.chandlerc.com/D965 llvm-svn: 187923
2013-08-08 06:47:18 +08:00
define i8 @add(i8 %a, i8 %b) {
DataFlowSanitizer: Prefix the name of each instrumented function with "dfs$". DFSan changes the ABI of each function in the module. This makes it possible for a function with the native ABI to be called with the instrumented ABI, or vice versa, thus possibly invoking undefined behavior. A simple way of statically detecting instances of this problem is to prepend the prefix "dfs$" to the name of each instrumented-ABI function. This will not catch every such problem; in particular function pointers passed across the instrumented-native barrier cannot be used on the other side. These problems could potentially be caught dynamically. Differential Revision: http://llvm-reviews.chandlerc.com/D1373 llvm-svn: 189052
2013-08-23 04:08:08 +08:00
; CHECK: @"dfs$add"
DataFlowSanitizer: correctly combine labels in the case where they are equal. llvm-svn: 189133
2013-08-24 02:45:06 +08:00
; CHECK-DAG: %[[ALABEL:.*]] = load{{.*}}__dfsan_arg_tls, i64 0, i64 0
; CHECK-DAG: %[[BLABEL:.*]] = load{{.*}}__dfsan_arg_tls, i64 0, i64 1
; CHECK: %[[UNION:.*]] = call{{.*}}__dfsan_union(i16 zeroext %[[ALABEL]], i16 zeroext %[[BLABEL]])
; CHECK: %[[ADDLABEL:.*]] = phi i16 [ %[[UNION]], {{.*}} ], [ %[[ALABEL]], {{.*}} ]
DataFlowSanitizer; LLVM changes. DataFlowSanitizer is a generalised dynamic data flow analysis. Unlike other Sanitizer tools, this tool is not designed to detect a specific class of bugs on its own. Instead, it provides a generic dynamic data flow analysis framework to be used by clients to help detect application-specific issues within their own code. Differential Revision: http://llvm-reviews.chandlerc.com/D965 llvm-svn: 187923
2013-08-08 06:47:18 +08:00
; CHECK: add i8
DataFlowSanitizer: correctly combine labels in the case where they are equal. llvm-svn: 189133
2013-08-24 02:45:06 +08:00
; CHECK: store i16 %[[ADDLABEL]], i16* @__dfsan_retval_tls
DataFlowSanitizer; LLVM changes. DataFlowSanitizer is a generalised dynamic data flow analysis. Unlike other Sanitizer tools, this tool is not designed to detect a specific class of bugs on its own. Instead, it provides a generic dynamic data flow analysis framework to be used by clients to help detect application-specific issues within their own code. Differential Revision: http://llvm-reviews.chandlerc.com/D965 llvm-svn: 187923
2013-08-08 06:47:18 +08:00
; CHECK: ret i8
%c = add i8 %a, %b
ret i8 %c
}
define i8 @sub(i8 %a, i8 %b) {
DataFlowSanitizer: Prefix the name of each instrumented function with "dfs$". DFSan changes the ABI of each function in the module. This makes it possible for a function with the native ABI to be called with the instrumented ABI, or vice versa, thus possibly invoking undefined behavior. A simple way of statically detecting instances of this problem is to prepend the prefix "dfs$" to the name of each instrumented-ABI function. This will not catch every such problem; in particular function pointers passed across the instrumented-native barrier cannot be used on the other side. These problems could potentially be caught dynamically. Differential Revision: http://llvm-reviews.chandlerc.com/D1373 llvm-svn: 189052
2013-08-23 04:08:08 +08:00
; CHECK: @"dfs$sub"
DataFlowSanitizer; LLVM changes. DataFlowSanitizer is a generalised dynamic data flow analysis. Unlike other Sanitizer tools, this tool is not designed to detect a specific class of bugs on its own. Instead, it provides a generic dynamic data flow analysis framework to be used by clients to help detect application-specific issues within their own code. Differential Revision: http://llvm-reviews.chandlerc.com/D965 llvm-svn: 187923
2013-08-08 06:47:18 +08:00
; CHECK: load{{.*}}__dfsan_arg_tls
; CHECK: load{{.*}}__dfsan_arg_tls
; CHECK: call{{.*}}__dfsan_union
; CHECK: sub i8
; CHECK: store{{.*}}__dfsan_retval_tls
; CHECK: ret i8
%c = sub i8 %a, %b
ret i8 %c
}
define i8 @mul(i8 %a, i8 %b) {
DataFlowSanitizer: Prefix the name of each instrumented function with "dfs$". DFSan changes the ABI of each function in the module. This makes it possible for a function with the native ABI to be called with the instrumented ABI, or vice versa, thus possibly invoking undefined behavior. A simple way of statically detecting instances of this problem is to prepend the prefix "dfs$" to the name of each instrumented-ABI function. This will not catch every such problem; in particular function pointers passed across the instrumented-native barrier cannot be used on the other side. These problems could potentially be caught dynamically. Differential Revision: http://llvm-reviews.chandlerc.com/D1373 llvm-svn: 189052
2013-08-23 04:08:08 +08:00
; CHECK: @"dfs$mul"
DataFlowSanitizer; LLVM changes. DataFlowSanitizer is a generalised dynamic data flow analysis. Unlike other Sanitizer tools, this tool is not designed to detect a specific class of bugs on its own. Instead, it provides a generic dynamic data flow analysis framework to be used by clients to help detect application-specific issues within their own code. Differential Revision: http://llvm-reviews.chandlerc.com/D965 llvm-svn: 187923
2013-08-08 06:47:18 +08:00
; CHECK: load{{.*}}__dfsan_arg_tls
; CHECK: load{{.*}}__dfsan_arg_tls
; CHECK: call{{.*}}__dfsan_union
; CHECK: mul i8
; CHECK: store{{.*}}__dfsan_retval_tls
; CHECK: ret i8
%c = mul i8 %a, %b
ret i8 %c
}
define i8 @sdiv(i8 %a, i8 %b) {
DataFlowSanitizer: Prefix the name of each instrumented function with "dfs$". DFSan changes the ABI of each function in the module. This makes it possible for a function with the native ABI to be called with the instrumented ABI, or vice versa, thus possibly invoking undefined behavior. A simple way of statically detecting instances of this problem is to prepend the prefix "dfs$" to the name of each instrumented-ABI function. This will not catch every such problem; in particular function pointers passed across the instrumented-native barrier cannot be used on the other side. These problems could potentially be caught dynamically. Differential Revision: http://llvm-reviews.chandlerc.com/D1373 llvm-svn: 189052
2013-08-23 04:08:08 +08:00
; CHECK: @"dfs$sdiv"
DataFlowSanitizer; LLVM changes. DataFlowSanitizer is a generalised dynamic data flow analysis. Unlike other Sanitizer tools, this tool is not designed to detect a specific class of bugs on its own. Instead, it provides a generic dynamic data flow analysis framework to be used by clients to help detect application-specific issues within their own code. Differential Revision: http://llvm-reviews.chandlerc.com/D965 llvm-svn: 187923
2013-08-08 06:47:18 +08:00
; CHECK: load{{.*}}__dfsan_arg_tls
; CHECK: load{{.*}}__dfsan_arg_tls
; CHECK: call{{.*}}__dfsan_union
; CHECK: sdiv i8
; CHECK: store{{.*}}__dfsan_retval_tls
; CHECK: ret i8
%c = sdiv i8 %a, %b
ret i8 %c
}
define i8 @udiv(i8 %a, i8 %b) {
DataFlowSanitizer: Prefix the name of each instrumented function with "dfs$". DFSan changes the ABI of each function in the module. This makes it possible for a function with the native ABI to be called with the instrumented ABI, or vice versa, thus possibly invoking undefined behavior. A simple way of statically detecting instances of this problem is to prepend the prefix "dfs$" to the name of each instrumented-ABI function. This will not catch every such problem; in particular function pointers passed across the instrumented-native barrier cannot be used on the other side. These problems could potentially be caught dynamically. Differential Revision: http://llvm-reviews.chandlerc.com/D1373 llvm-svn: 189052
2013-08-23 04:08:08 +08:00
; CHECK: @"dfs$udiv"
DataFlowSanitizer; LLVM changes. DataFlowSanitizer is a generalised dynamic data flow analysis. Unlike other Sanitizer tools, this tool is not designed to detect a specific class of bugs on its own. Instead, it provides a generic dynamic data flow analysis framework to be used by clients to help detect application-specific issues within their own code. Differential Revision: http://llvm-reviews.chandlerc.com/D965 llvm-svn: 187923
2013-08-08 06:47:18 +08:00
; CHECK: load{{.*}}__dfsan_arg_tls
; CHECK: load{{.*}}__dfsan_arg_tls
; CHECK: call{{.*}}__dfsan_union
; CHECK: udiv i8
; CHECK: store{{.*}}__dfsan_retval_tls
; CHECK: ret i8
%c = udiv i8 %a, %b
ret i8 %c
}