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| author | Dean Michael Berris <dberris@google.com> | 2018-09-14 01:59:12 +0000 |
|---|---|---|
| committer | Dean Michael Berris <dberris@google.com> | 2018-09-14 01:59:12 +0000 |
| commit | f544500eef9c808fde904c07befdf11fb0cc3b75 (patch) | |
| tree | 5934c18e4e5d091c1ac8ef7cff9de80e100fae68 /test/CodeGen/xray-attributes-supported.cpp | |
| parent | 7592787111fedc16dbd9546502f5f3cfc31e0a0e (diff) | |
| download | clang-f544500eef9c808fde904c07befdf11fb0cc3b75.tar.gz | |
[XRay][clang] Emit "never-instrument" attribute
Summary:
Before this change, we only emit the XRay attributes in LLVM IR when the
-fxray-instrument flag is provided. This may cause issues with thinlto
when the final binary is being built/linked with -fxray-instrument, and
the constitutent LLVM IR gets re-lowered with xray instrumentation.
With this change, we can honour the "never-instrument "attributes
provided in the source code and preserve those in the IR. This way, even
in thinlto builds, we retain the attributes which say whether functions
should never be XRay instrumented.
This change addresses llvm.org/PR38922.
Reviewers: mboerger, eizan
Subscribers: mehdi_amini, dexonsmith, cfe-commits, llvm-commits
Differential Revision: https://reviews.llvm.org/D52015
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@342200 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/xray-attributes-supported.cpp')
| -rw-r--r-- | test/CodeGen/xray-attributes-supported.cpp | 21 |
1 files changed, 14 insertions, 7 deletions
diff --git a/test/CodeGen/xray-attributes-supported.cpp b/test/CodeGen/xray-attributes-supported.cpp index 21a5dde53a..51ee4721f2 100644 --- a/test/CodeGen/xray-attributes-supported.cpp +++ b/test/CodeGen/xray-attributes-supported.cpp @@ -1,10 +1,17 @@ -// RUN: %clang_cc1 %s -fxray-instrument -std=c++11 -x c++ -emit-llvm -o - -triple x86_64-unknown-linux-gnu | FileCheck %s -// RUN: %clang_cc1 %s -fxray-instrument -std=c++11 -x c++ -emit-llvm -o - -triple arm-unknown-linux-gnu -target-abi apcs-gnu | FileCheck %s -// RUN: %clang_cc1 %s -fxray-instrument -std=c++11 -x c++ -emit-llvm -o - -triple mips-unknown-linux-gnu | FileCheck %s -// RUN: %clang_cc1 %s -fxray-instrument -std=c++11 -x c++ -emit-llvm -o - -triple mipsel-unknown-linux-gnu | FileCheck %s -// RUN: %clang_cc1 %s -fxray-instrument -std=c++11 -x c++ -emit-llvm -o - -triple mips64-unknown-linux-gnu | FileCheck %s -// RUN: %clang_cc1 %s -fxray-instrument -std=c++11 -x c++ -emit-llvm -o - -triple mips64el-unknown-linux-gnu | FileCheck %s -// RUN: %clang_cc1 %s -fxray-instrument -std=c++11 -x c++ -emit-llvm -o - -triple powerpc64le-unknown-linux-gnu | FileCheck %s +// RUN: %clang_cc1 %s -fxray-instrument -std=c++11 -x c++ -emit-llvm -o - \ +// RUN: -triple x86_64-unknown-linux-gnu | FileCheck %s +// RUN: %clang_cc1 %s -fxray-instrument -std=c++11 -x c++ -emit-llvm -o - \ +// RUN: -triple arm-unknown-linux-gnu -target-abi apcs-gnu | FileCheck %s +// RUN: %clang_cc1 %s -fxray-instrument -std=c++11 -x c++ -emit-llvm -o - \ +// RUN: -triple mips-unknown-linux-gnu | FileCheck %s +// RUN: %clang_cc1 %s -fxray-instrument -std=c++11 -x c++ -emit-llvm -o - \ +// RUN: -triple mipsel-unknown-linux-gnu | FileCheck %s +// RUN: %clang_cc1 %s -fxray-instrument -std=c++11 -x c++ -emit-llvm -o - \ +// RUN: -triple mips64-unknown-linux-gnu | FileCheck %s +// RUN: %clang_cc1 %s -fxray-instrument -std=c++11 -x c++ -emit-llvm -o - \ +// RUN: -triple mips64el-unknown-linux-gnu | FileCheck %s +// RUN: %clang_cc1 %s -fxray-instrument -std=c++11 -x c++ -emit-llvm -o - \ +// RUN: -triple powerpc64le-unknown-linux-gnu | FileCheck %s // Make sure that the LLVM attribute for XRay-annotated functions do show up. [[clang::xray_always_instrument]] void foo() { |