llvm-test-suite build failure

Clang Frontend
#1

Hi devs,

I’m able to build llvm/clang following these instructions:

  1. git clone https://github.com/llvm/llvm-project.git

  2. cd llvm-project

  3. mkdir build

  4. cd build

  5. cmake -DLLVM_ENABLE_PROJECTS=clang -G “Unix Makefiles” …/llvm

  6. make

For the test suite, I’m following the directions found here:

https://llvm.org/docs/TestSuiteGuide.html

and execute the following commands in the same directory where I have cloned lllvm-project:

  1. **git clone [https://github.com/llvm/llvm-test-suite.git](https://github.com/llvm/llvm-test-suite.git) test-suite**

  2. <b>mkdir test-suite-build
</b>

  3. **cd test-suite-build**


  4. **cmake -DCMAKE_C_COMPILER=<path to my build of clang>/llvm-project/build/bin/****clang CMAKE_BUILD_TYPE=DEBUG -C../test-suite/cmake/caches/****O3.cmake ../test-suite**

  5. **make**

but it seems to fail at 37% with this error (sorry for any formatting issues):

Scanning dependencies of target retref-bench
[ 37%] Building CXX object MicroBenchmarks/XRay/ReturnReference/CMakeFiles/retref-bench.dir/retref-bench.cc.o
/home/removed/release/test-suite/MicroBenchmarks/XRay/ReturnReference/retref-bench.cc:18:10: fatal error:
      'xray/xray_interface.h' file not found
#include "xray/xray_interface.h"
         ^~~~~~~~~~~~~~~~~~~~~~~
1 error generated.
make[2]: *** [MicroBenchmarks/XRay/ReturnReference/CMakeFiles/retref-bench.dir/build.make:63: MicroBenchmarks/XRay/ReturnReference/CMakeFiles/retref-bench.dir/retref-bench.cc.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:19890: MicroBenchmarks/XRay/ReturnReference/CMakeFiles/retref-bench.dir/all] Error 2
make: *** [Makefile:130: all] Error 2


Any ideas what I may be missing? I haven't been able to turn anything up online. I should note I've also attempted to build both repos from the release 8.x branch as well, and ran into the same error.
#2

Hi Tim, I’m seeing the same error here but haven’t had time to really debug it.

I’ve worked around it by disabling the XRay MicroBenchmark by commenting out line 4 of https://github.com/llvm/llvm-test-suite/blob/master/MicroBenchmarks/CMakeLists.txt . With this change I’m able to complete test-suite runs of the standard directories (SingleSource, MultiSource, MicroBenchmarks)

diff --git a/MicroBenchmarks/CMakeLists.txt b/MicroBenchmarks/CMakeLists.txt
index 77a8e89…897d051 100644
— a/MicroBenchmarks/CMakeLists.txt
+++ b/MicroBenchmarks/CMakeLists.txt
@@ -1,7 +1,7 @@
file(COPY lit.local.cfg DESTINATION ${CMAKE_CURRENT_BINARY_DIR})

add_subdirectory(libs)
-add_subdirectory(XRay)
+#add_subdirectory(XRay)
add_subdirectory(LCALS)
add_subdirectory(harris)
add_subdirectory(ImageProcessing)

#3

Thanks Brian. Someone sent me a email saying I missed including the compiler-rt project when I built llvm. I’ve got it built now and running tests and they all finished.

LLVM release 8.x with test-suite release 8.x on a 64 CPU google cloud machine took 954.90s to complete for anyone curious. All 918 tests passed. This was not with ninja, and I assume a debug build of llvm.

Encase you’re using Ubuntu 18.10, you’ll also have to install python-dev, and tcl to have it fire off. You may need tcl-dev, or an older tcl version. I kind of went to town installing those.

Also worth noting is that I had to delete the contents of my test-suite-build folder and re-run it’s cmake file after installing the tcl package.

Thanks everyone.