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llvm-project/clang/test/CodeGen/xray-attributes-supported.cpp

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[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 llvm-svn: 342200
2018-09-14 09:59:12 +08:00
// 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 - \
[driver][mips] Support MIPS R6 target triples This change adds support for the following MIPS target triples: mipsisa32r6-linux-gnu mipsisa32r6el-linux-gnu mipsisa64r6-linux-gnuabi64 mipsisa64r6el-linux-gnuabi64 mipsisa64r6-linux-gnuabin32 mipsisa64r6el-linux-gnuabin32 Patch by Yun Qiang Su. Differential revision: https://reviews.llvm.org/D50850 llvm-svn: 344608
2018-10-16 22:29:27 +08:00
// RUN: -triple mipsisa32r6-unknown-linux-gnu | FileCheck %s
// RUN: %clang_cc1 %s -fxray-instrument -std=c++11 -x c++ -emit-llvm -o - \
[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 llvm-svn: 342200
2018-09-14 09:59:12 +08:00
// RUN: -triple mipsel-unknown-linux-gnu | FileCheck %s
// RUN: %clang_cc1 %s -fxray-instrument -std=c++11 -x c++ -emit-llvm -o - \
[driver][mips] Support MIPS R6 target triples This change adds support for the following MIPS target triples: mipsisa32r6-linux-gnu mipsisa32r6el-linux-gnu mipsisa64r6-linux-gnuabi64 mipsisa64r6el-linux-gnuabi64 mipsisa64r6-linux-gnuabin32 mipsisa64r6el-linux-gnuabin32 Patch by Yun Qiang Su. Differential revision: https://reviews.llvm.org/D50850 llvm-svn: 344608
2018-10-16 22:29:27 +08:00
// RUN: -triple mipsisa32r6el-unknown-linux-gnu | FileCheck %s
// RUN: %clang_cc1 %s -fxray-instrument -std=c++11 -x c++ -emit-llvm -o - \
[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 llvm-svn: 342200
2018-09-14 09:59:12 +08:00
// RUN: -triple mips64-unknown-linux-gnu | FileCheck %s
// RUN: %clang_cc1 %s -fxray-instrument -std=c++11 -x c++ -emit-llvm -o - \
[driver][mips] Support MIPS R6 target triples This change adds support for the following MIPS target triples: mipsisa32r6-linux-gnu mipsisa32r6el-linux-gnu mipsisa64r6-linux-gnuabi64 mipsisa64r6el-linux-gnuabi64 mipsisa64r6-linux-gnuabin32 mipsisa64r6el-linux-gnuabin32 Patch by Yun Qiang Su. Differential revision: https://reviews.llvm.org/D50850 llvm-svn: 344608
2018-10-16 22:29:27 +08:00
// RUN: -triple mipsisa64r6-unknown-linux-gnu | FileCheck %s
// RUN: %clang_cc1 %s -fxray-instrument -std=c++11 -x c++ -emit-llvm -o - \
[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 llvm-svn: 342200
2018-09-14 09:59:12 +08:00
// RUN: -triple mips64el-unknown-linux-gnu | FileCheck %s
// RUN: %clang_cc1 %s -fxray-instrument -std=c++11 -x c++ -emit-llvm -o - \
[driver][mips] Support MIPS R6 target triples This change adds support for the following MIPS target triples: mipsisa32r6-linux-gnu mipsisa32r6el-linux-gnu mipsisa64r6-linux-gnuabi64 mipsisa64r6el-linux-gnuabi64 mipsisa64r6-linux-gnuabin32 mipsisa64r6el-linux-gnuabin32 Patch by Yun Qiang Su. Differential revision: https://reviews.llvm.org/D50850 llvm-svn: 344608
2018-10-16 22:29:27 +08:00
// RUN: -triple mipsisa64r6el-unknown-linux-gnu | FileCheck %s
// RUN: %clang_cc1 %s -fxray-instrument -std=c++11 -x c++ -emit-llvm -o - \
[mips] Fix handling of GNUABIN32 environment in a target triple The `GNUABIN32` environment in a target triple implies using the N32 ABI. This patch adds support for this environment and switches on N32 ABI if necessary. Patch by Patch by YunQiang Su. Differential revision: https://reviews.llvm.org/D51464 llvm-svn: 344570
2018-10-16 06:43:23 +08:00
// RUN: -triple mips64-unknown-linux-gnuabi64 | FileCheck %s
// RUN: %clang_cc1 %s -fxray-instrument -std=c++11 -x c++ -emit-llvm -o - \
[driver][mips] Support MIPS R6 target triples This change adds support for the following MIPS target triples: mipsisa32r6-linux-gnu mipsisa32r6el-linux-gnu mipsisa64r6-linux-gnuabi64 mipsisa64r6el-linux-gnuabi64 mipsisa64r6-linux-gnuabin32 mipsisa64r6el-linux-gnuabin32 Patch by Yun Qiang Su. Differential revision: https://reviews.llvm.org/D50850 llvm-svn: 344608
2018-10-16 22:29:27 +08:00
// RUN: -triple mipsisa64r6-unknown-linux-gnuabi64 | FileCheck %s
// RUN: %clang_cc1 %s -fxray-instrument -std=c++11 -x c++ -emit-llvm -o - \
[mips] Fix handling of GNUABIN32 environment in a target triple The `GNUABIN32` environment in a target triple implies using the N32 ABI. This patch adds support for this environment and switches on N32 ABI if necessary. Patch by Patch by YunQiang Su. Differential revision: https://reviews.llvm.org/D51464 llvm-svn: 344570
2018-10-16 06:43:23 +08:00
// RUN: -triple mips64el-unknown-linux-gnuabi64 | FileCheck %s
// RUN: %clang_cc1 %s -fxray-instrument -std=c++11 -x c++ -emit-llvm -o - \
[driver][mips] Support MIPS R6 target triples This change adds support for the following MIPS target triples: mipsisa32r6-linux-gnu mipsisa32r6el-linux-gnu mipsisa64r6-linux-gnuabi64 mipsisa64r6el-linux-gnuabi64 mipsisa64r6-linux-gnuabin32 mipsisa64r6el-linux-gnuabin32 Patch by Yun Qiang Su. Differential revision: https://reviews.llvm.org/D50850 llvm-svn: 344608
2018-10-16 22:29:27 +08:00
// RUN: -triple mipsisa64r6el-unknown-linux-gnuabi64 | FileCheck %s
// RUN: %clang_cc1 %s -fxray-instrument -std=c++11 -x c++ -emit-llvm -o - \
[mips] Fix handling of GNUABIN32 environment in a target triple The `GNUABIN32` environment in a target triple implies using the N32 ABI. This patch adds support for this environment and switches on N32 ABI if necessary. Patch by Patch by YunQiang Su. Differential revision: https://reviews.llvm.org/D51464 llvm-svn: 344570
2018-10-16 06:43:23 +08:00
// RUN: -triple mips64-unknown-linux-gnuabin32 | FileCheck %s
// RUN: %clang_cc1 %s -fxray-instrument -std=c++11 -x c++ -emit-llvm -o - \
[driver][mips] Support MIPS R6 target triples This change adds support for the following MIPS target triples: mipsisa32r6-linux-gnu mipsisa32r6el-linux-gnu mipsisa64r6-linux-gnuabi64 mipsisa64r6el-linux-gnuabi64 mipsisa64r6-linux-gnuabin32 mipsisa64r6el-linux-gnuabin32 Patch by Yun Qiang Su. Differential revision: https://reviews.llvm.org/D50850 llvm-svn: 344608
2018-10-16 22:29:27 +08:00
// RUN: -triple mipsisa64r6-unknown-linux-gnuabin32 | FileCheck %s
// RUN: %clang_cc1 %s -fxray-instrument -std=c++11 -x c++ -emit-llvm -o - \
[mips] Fix handling of GNUABIN32 environment in a target triple The `GNUABIN32` environment in a target triple implies using the N32 ABI. This patch adds support for this environment and switches on N32 ABI if necessary. Patch by Patch by YunQiang Su. Differential revision: https://reviews.llvm.org/D51464 llvm-svn: 344570
2018-10-16 06:43:23 +08:00
// RUN: -triple mips64el-unknown-linux-gnuabin32 | FileCheck %s
// RUN: %clang_cc1 %s -fxray-instrument -std=c++11 -x c++ -emit-llvm -o - \
[driver][mips] Support MIPS R6 target triples This change adds support for the following MIPS target triples: mipsisa32r6-linux-gnu mipsisa32r6el-linux-gnu mipsisa64r6-linux-gnuabi64 mipsisa64r6el-linux-gnuabi64 mipsisa64r6-linux-gnuabin32 mipsisa64r6el-linux-gnuabin32 Patch by Yun Qiang Su. Differential revision: https://reviews.llvm.org/D50850 llvm-svn: 344608
2018-10-16 22:29:27 +08:00
// RUN: -triple mipsisa64r6el-unknown-linux-gnuabin32 | FileCheck %s
// RUN: %clang_cc1 %s -fxray-instrument -std=c++11 -x c++ -emit-llvm -o - \
[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 llvm-svn: 342200
2018-09-14 09:59:12 +08:00
// RUN: -triple powerpc64le-unknown-linux-gnu | FileCheck %s
Add XRay flags to Clang. We implement two flags to control the XRay behaviour: -fxray-instrument: enables XRay annotation of IR -fxray-instruction-threshold: configures the threshold for function size (looking at IR instructions), and allow LLVM to decide whether to add the nop sleds later on in the process. Also implements the related xray_always_instrument and xray_never_instrument function attributes. Patch by Dean Michael Berris. llvm-svn: 275330
2016-07-14 06:32:15 +08:00
// Make sure that the LLVM attribute for XRay-annotated functions do show up.
[[clang::xray_always_instrument]] void foo() {
[test] Add {{.*}} to make ELF tests immune to dso_local/dso_preemptable/(none) differences For a default visibility external linkage definition, dso_local is set for ELF -fno-pic/-fpie and COFF and Mach-O. Since default clang -cc1 for ELF is similar to -fpic ("PIC Level" is not set), this nuance causes unneeded binary format differences. To make emitted IR similar, ELF -cc1 -fpic will default to -fno-semantic-interposition, which sets dso_local for default visibility external linkage definitions. To make this flip smooth and enable future (dso_local as definition default), this patch replaces (function) `define ` with `define{{.*}} `, (variable/constant/alias) `= ` with `={{.*}} `, or inserts appropriate `{{.*}} `.
2020-12-31 16:27:11 +08:00
// CHECK: define{{.*}} void @_Z3foov() #0
Add XRay flags to Clang. We implement two flags to control the XRay behaviour: -fxray-instrument: enables XRay annotation of IR -fxray-instruction-threshold: configures the threshold for function size (looking at IR instructions), and allow LLVM to decide whether to add the nop sleds later on in the process. Also implements the related xray_always_instrument and xray_never_instrument function attributes. Patch by Dean Michael Berris. llvm-svn: 275330
2016-07-14 06:32:15 +08:00
};
[[clang::xray_never_instrument]] void bar() {
[test] Add {{.*}} to make ELF tests immune to dso_local/dso_preemptable/(none) differences For a default visibility external linkage definition, dso_local is set for ELF -fno-pic/-fpie and COFF and Mach-O. Since default clang -cc1 for ELF is similar to -fpic ("PIC Level" is not set), this nuance causes unneeded binary format differences. To make emitted IR similar, ELF -cc1 -fpic will default to -fno-semantic-interposition, which sets dso_local for default visibility external linkage definitions. To make this flip smooth and enable future (dso_local as definition default), this patch replaces (function) `define ` with `define{{.*}} `, (variable/constant/alias) `= ` with `={{.*}} `, or inserts appropriate `{{.*}} `.
2020-12-31 16:27:11 +08:00
// CHECK: define{{.*}} void @_Z3barv() #1
Add XRay flags to Clang. We implement two flags to control the XRay behaviour: -fxray-instrument: enables XRay annotation of IR -fxray-instruction-threshold: configures the threshold for function size (looking at IR instructions), and allow LLVM to decide whether to add the nop sleds later on in the process. Also implements the related xray_always_instrument and xray_never_instrument function attributes. Patch by Dean Michael Berris. llvm-svn: 275330
2016-07-14 06:32:15 +08:00
};
// CHECK: #0 = {{.*}}"function-instrument"="xray-always"
// CHECK: #1 = {{.*}}"function-instrument"="xray-never"