llvm-6502/test/Instrumentation/DataFlowSanitizer/call.ll
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

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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"
; CHECK: @__dfsan_arg_tls = external thread_local(initialexec) global [64 x i16]
; CHECK: @__dfsan_retval_tls = external thread_local(initialexec) global i16
declare i32 @f(i32)
declare float @llvm.sqrt.f32(float)
; CHECK: @call
define i32 @call() {
; CHECK: store{{.*}}__dfsan_arg_tls
; CHECK: call{{.*}}@f
; CHECK: load{{.*}}__dfsan_retval_tls
%r = call i32 @f(i32 0)
; CHECK-NOT: store{{.*}}__dfsan_arg_tls
%i = call float @llvm.sqrt.f32(float -1.0)
; CHECK: store{{.*}}__dfsan_retval_tls
; CHECK: ret i32
ret i32 %r
}