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llvm-mirror/test/Instrumentation/AddressSanitizer/instrument_load_then_store.ll
Kostya Serebryany f560b78692 Unify clang/llvm attributes for asan/tsan/msan (LLVM part)
These are two related changes (one in llvm, one in clang).
LLVM: 
- rename address_safety => sanitize_address (the enum value is the same, so we preserve binary compatibility with old bitcode)
- rename thread_safety => sanitize_thread
- rename no_uninitialized_checks -> sanitize_memory

CLANG: 
- add __attribute__((no_sanitize_address)) as a synonym for __attribute__((no_address_safety_analysis))
- add __attribute__((no_sanitize_thread))
- add __attribute__((no_sanitize_memory))

for S in address thread memory
If -fsanitize=S is present and __attribute__((no_sanitize_S)) is not
set llvm attribute sanitize_S

llvm-svn: 176075
2013-02-26 06:58:09 +00:00

26 lines
910 B
LLVM

; Test that AddressSanitizer instruments "(*a)++" only once.
; RUN: opt < %s -asan -S -asan-opt=1 | FileCheck %s -check-prefix=OPT1
; RUN: opt < %s -asan -S -asan-opt=0 | FileCheck %s -check-prefix=OPT0
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"
target triple = "x86_64-unknown-linux-gnu"
define void @IncrementMe(i32* %a) sanitize_address {
entry:
%tmp1 = load i32* %a, align 4
%tmp2 = add i32 %tmp1, 1
store i32 %tmp2, i32* %a, align 4
ret void
}
; With optimizations enabled we should see only one call to __asan_report_*
; OPT1: IncrementMe
; OPT1: __asan_report_
; OPT1-NOT: __asan_report_
; OPT1: asan.module_ctor
; Without optimizations we should see two calls to __asan_report_*
; OPT0: IncrementMe
; OPT0: __asan_report_
; OPT0: __asan_report_
; OPT0: asan.module_ctor