Peter Collingbourne 6fa33f5dd9 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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187923 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-07 22:47:18 +00:00

76 lines
1.6 KiB
LLVM

; 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"
define void @store8(i8 %v, i8* %p) {
; CHECK: @store8
; CHECK: load{{.*}}__dfsan_arg_tls
; CHECK: ptrtoint
; CHECK: and
; CHECK: mul
; CHECK: inttoptr
; CHECK: getelementptr
; CHECK: store
; CHECK: store
store i8 %v, i8* %p
ret void
}
define void @store16(i16 %v, i16* %p) {
; CHECK: @store16
; CHECK: load{{.*}}__dfsan_arg_tls
; CHECK: ptrtoint
; CHECK: and
; CHECK: mul
; CHECK: inttoptr
; CHECK: getelementptr
; CHECK: store
; CHECK: getelementptr
; CHECK: store
; CHECK: store
store i16 %v, i16* %p
ret void
}
define void @store32(i32 %v, i32* %p) {
; CHECK: @store32
; CHECK: load{{.*}}__dfsan_arg_tls
; CHECK: ptrtoint
; CHECK: and
; CHECK: mul
; CHECK: inttoptr
; CHECK: getelementptr
; CHECK: store
; CHECK: getelementptr
; CHECK: store
; CHECK: getelementptr
; CHECK: store
; CHECK: getelementptr
; CHECK: store
; CHECK: store
store i32 %v, i32* %p
ret void
}
define void @store64(i64 %v, i64* %p) {
; CHECK: @store64
; CHECK: load{{.*}}__dfsan_arg_tls
; CHECK: ptrtoint
; CHECK: and
; CHECK: mul
; CHECK: inttoptr
; CHECK: insertelement
; CHECK: insertelement
; CHECK: insertelement
; CHECK: insertelement
; CHECK: insertelement
; CHECK: insertelement
; CHECK: insertelement
; CHECK: insertelement
; CHECK: bitcast
; CHECK: getelementptr
; CHECK: store
; CHECK: store
store i64 %v, i64* %p
ret void
}