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Rename asan-check-lifetime into asan-stack-use-after-scope

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Summary:
This is done for consistency with asan-use-after-return.
I see no other users than tests.

Reviewers: aizatsky, kcc

Differential Revision: http://reviews.llvm.org/D19306

llvm-svn: 266906
This commit is contained in:
Kostya Serebryany 2016-04-20 20:02:58 +00:00
parent 05ccfac388
commit d328bd016e
3 changed files with 6 additions and 8 deletions
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10
lib/Transforms/Instrumentation/AddressSanitizer.cpp
View File

@ -164,6 +164,9 @@ static cl::opt<bool> ClStack("asan-stack", cl::desc("Handle stack memory"),
static cl::opt<bool> ClUseAfterReturn("asan-use-after-return",
cl::desc("Check return-after-free"),
cl::Hidden, cl::init(true));
static cl::opt<bool> ClUseAfterScope("asan-use-after-scope",
cl::desc("Check stack-use-after-scope"),
cl::Hidden, cl::init(false));
// This flag may need to be replaced with -f[no]asan-globals.
static cl::opt<bool> ClGlobals("asan-globals",
cl::desc("Handle global objects"), cl::Hidden,
@ -219,11 +222,6 @@ static cl::opt<bool> ClOptStack(
"asan-opt-stack", cl::desc("Don't instrument scalar stack variables"),
cl::Hidden, cl::init(false));
static cl::opt<bool> ClCheckLifetime(
"asan-check-lifetime",
cl::desc("Use llvm.lifetime intrinsics to insert extra checks"), cl::Hidden,
cl::init(false));
static cl::opt<bool> ClDynamicAllocaStack(
"asan-stack-dynamic-alloca",
cl::desc("Use dynamic alloca to represent stack variables"), cl::Hidden,
@ -714,7 +712,7 @@ struct FunctionStackPoisoner : public InstVisitor<FunctionStackPoisoner> {
Intrinsic::ID ID = II.getIntrinsicID();
if (ID == Intrinsic::stackrestore) StackRestoreVec.push_back(&II);
if (ID == Intrinsic::localescape) LocalEscapeCall = &II;
if (!ClCheckLifetime) return;
if (!ClUseAfterScope) return;
if (ID != Intrinsic::lifetime_start && ID != Intrinsic::lifetime_end)
return;
// Found lifetime intrinsic, add ASan instrumentation if necessary.

2
test/Instrumentation/AddressSanitizer/lifetime-uar.ll
View File

@ -1,5 +1,5 @@
; Test handling of llvm.lifetime intrinsics in UAR mode.
; RUN: opt < %s -asan -asan-module -asan-use-after-return -asan-check-lifetime -S | FileCheck %s
; RUN: opt < %s -asan -asan-module -asan-use-after-return -asan-use-after-scope -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"

2
test/Instrumentation/AddressSanitizer/lifetime.ll
View File

@ -1,5 +1,5 @@
; Test hanlding of llvm.lifetime intrinsics.
; RUN: opt < %s -asan -asan-module -asan-check-lifetime -asan-use-after-return=0 -S | FileCheck %s
; RUN: opt < %s -asan -asan-module -asan-use-after-scope -asan-use-after-return=0 -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"
target triple = "x86_64-unknown-linux-gnu"