<html>

    <head>

      <base href="https://bugs.llvm.org/">

    </head>

    <body><table border="1" cellspacing="0" cellpadding="8">

        <tr>

          <th>Bug ID</th>

          <td><a class="bz_bug_link 

          bz_status_NEW "

   title="NEW - llvm-reduce tests fail with "Error making unique filename: File exists!""

   href="https://bugs.llvm.org/show_bug.cgi?id=43278">43278</a>

          </td>

        </tr>

        <tr>

          <th>Summary</th>

          <td>llvm-reduce tests fail with "Error making unique filename: File exists!"

          </td>

        </tr>

        <tr>

          <th>Product</th>

          <td>tools

          </td>

        </tr>

        <tr>

          <th>Version</th>

          <td>trunk

          </td>

        </tr>

        <tr>

          <th>Hardware</th>

          <td>PC

          </td>

        </tr>

        <tr>

          <th>OS</th>

          <td>Windows NT

          </td>

        </tr>

        <tr>

          <th>Status</th>

          <td>NEW

          </td>

        </tr>

        <tr>

          <th>Severity</th>

          <td>enhancement

          </td>

        </tr>

        <tr>

          <th>Priority</th>

          <td>P

          </td>

        </tr>

        <tr>

          <th>Component</th>

          <td>support scripts

          </td>

        </tr>

        <tr>

          <th>Assignee</th>

          <td>unassignedbugs@nondot.org

          </td>

        </tr>

        <tr>

          <th>Reporter</th>

          <td>nicolasweber@gmx.de

          </td>

        </tr>

        <tr>

          <th>CC</th>

          <td>greg.bedwell@sony.com, i@maskray.me, llvm-bugs@lists.llvm.org

          </td>

        </tr></table>

      <p>

        <div>

        <pre><a href="http://llvm-cs.pcc.me.uk/tools/llvm-reduce/deltas/Delta.cpp#38">http://llvm-cs.pcc.me.uk/tools/llvm-reduce/deltas/Delta.cpp#38</a> does:

  sys::path::append(TmpFilepath, TmpDir, "tmp-%%%.ll");

  std::error_code EC =

      sys::fs::createUniqueFile(TmpFilepath, UniqueFD, UniqueFilepath);

Every other caller of createUniqueFile uses way more '%' characters.

createUniqueFile() tries a few times to make unique names but gives up after

128 tries.

But llvm-reduce not creating unique files in tmp and/or deleting them when it's

done is a problem too.

Two things to do:

- make llvm-reduce clean up after itself

- use more '%' characters.

$ ls out/gn/obj/llvm/test/Reduce/tmp/tmp-

Display all 4088 possibilities? (y or n)

16**3 is is 4096, so the test created almost all possible file names on my

system.

ninja: Entering directory `out/gn'

[0/2] ACTION

//clang-tools-extra/clangd/test:check-clangd(//llvm/utils/gn/build/toolchain:unix)

llvm-lit:

/usr/local/google/home/thakis/src/llvm-project/llvm/utils/lit/lit/llvm/config.py:340:

note: using clang:

/usr/local/google/home/thakis/src/llvm-project/out/gn/bin/clang

-- Testing: 610 tests, 64 threads --

Testing: 0 .. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90.. 

Testing Time: 4.12s

  Expected Passes    : 607

  Unsupported Tests  : 3

INFO:root:test check-clang-tools

ninja: Entering directory `out/gn'

[0/2] ACTION

//clang-tools-extra/test:check-clang-tools(//llvm/utils/gn/build/toolchain:unix)

-- Testing: 784 tests, 64 threads --

Testing: 0 .. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90.. 

Testing Time: 4.11s

  Expected Passes    : 782

  Expected Failures  : 1

  Unsupported Tests  : 1

INFO:root:test check-lld

ninja: Entering directory `out/gn'

[0/2] ACTION //lld/test:check-lld(//llvm/utils/gn/build/toolchain:unix)

llvm-lit:

/usr/local/google/home/thakis/src/llvm-project/llvm/utils/lit/lit/llvm/config.py:340:

note: using ld.lld:

/usr/local/google/home/thakis/src/llvm-project/out/gn/bin/ld.lld

llvm-lit:

/usr/local/google/home/thakis/src/llvm-project/llvm/utils/lit/lit/llvm/config.py:340:

note: using lld-link:

/usr/local/google/home/thakis/src/llvm-project/out/gn/bin/lld-link

llvm-lit:

/usr/local/google/home/thakis/src/llvm-project/llvm/utils/lit/lit/llvm/config.py:340:

note: using ld64.lld:

/usr/local/google/home/thakis/src/llvm-project/out/gn/bin/ld64.lld

llvm-lit:

/usr/local/google/home/thakis/src/llvm-project/llvm/utils/lit/lit/llvm/config.py:340:

note: using wasm-ld:

/usr/local/google/home/thakis/src/llvm-project/out/gn/bin/wasm-ld

-- Testing: 2199 tests, 64 threads --

Testing: 0 .. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90.. 

Testing Time: 20.03s

  Expected Passes    : 2160

  Expected Failures  : 1

  Unsupported Tests  : 38

INFO:root:test check-llvm

ninja: Entering directory `out/gn'

[0/2] ACTION //llvm/test:check-llvm(//llvm/utils/gn/build/toolchain:unix)

-- Testing: 33473 tests, 64 threads --

Testing: 0 .. 10.. 20.. 30.. 40.. 50.. 60.. 70.

FAIL: LLVM :: Reduce/remove-funcs.ll (25784 of 33473)

******************** TEST 'LLVM :: Reduce/remove-funcs.ll' FAILED

********************

Script:

--

: 'RUN: at line 4';   rm -rf

/usr/local/google/home/thakis/src/llvm-project/out/gn/obj/llvm/test/Reduce/Output/remove-funcs.ll.tmp

: 'RUN: at line 5';   mkdir

/usr/local/google/home/thakis/src/llvm-project/out/gn/obj/llvm/test/Reduce/Output/remove-funcs.ll.tmp

: 'RUN: at line 7';   cp

/usr/local/google/home/thakis/src/llvm-project/llvm/test/Reduce/Inputs/remove-funcs.py

/usr/local/google/home/thakis/src/llvm-project/out/gn/obj/llvm/test/Reduce/Output/remove-funcs.ll.tmp/test.py

: 'RUN: at line 9';   echo "#!" "/usr/bin/python" >

/usr/local/google/home/thakis/src/llvm-project/out/gn/obj/llvm/test/Reduce/Output/remove-funcs.ll.tmp/test.py

: 'RUN: at line 11';   cat

/usr/local/google/home/thakis/src/llvm-project/llvm/test/Reduce/Inputs/remove-funcs.py

<span class="quote">>></span >

/usr/local/google/home/thakis/src/llvm-project/out/gn/obj/llvm/test/Reduce/Output/remove-funcs.ll.tmp/test.py

: 'RUN: at line 13';   llvm-reduce --test

/usr/local/google/home/thakis/src/llvm-project/out/gn/obj/llvm/test/Reduce/Output/remove-funcs.ll.tmp/test.py

/usr/local/google/home/thakis/src/llvm-project/llvm/test/Reduce/remove-funcs.ll

-o

/usr/local/google/home/thakis/src/llvm-project/out/gn/obj/llvm/test/Reduce/Output/remove-funcs.ll.tmp/out.ll

: 'RUN: at line 14';   cat

/usr/local/google/home/thakis/src/llvm-project/out/gn/obj/llvm/test/Reduce/Output/remove-funcs.ll.tmp/out.ll

| /usr/local/google/home/thakis/src/llvm-project/out/gn/bin/FileCheck

-implicit-check-not=uninteresting

/usr/local/google/home/thakis/src/llvm-project/llvm/test/Reduce/remove-funcs.ll

--

Exit Code: 1

Command Output (stderr):

--

*** Reducing Functions...

----------------------------

Function Index Reference:

        1: uninteresting1

        2: interesting

        3: uninteresting2

        4: uninteresting3

----------------------------

Increasing granularity...Success! New Chunks:

        [1,2]

        [3,4]

Error making unique filename: File exists!

--

********************

Testing: 0 .. 10.. 20.. 30.. 40.. 50.. 60.. 70.

FAIL: LLVM :: Reduce/remove-metadata.ll (25810 of 33473)

******************** TEST 'LLVM :: Reduce/remove-metadata.ll' FAILED

********************

Script:

--

: 'RUN: at line 4';   rm -rf

/usr/local/google/home/thakis/src/llvm-project/out/gn/obj/llvm/test/Reduce/Output/remove-metadata.ll.tmp

: 'RUN: at line 5';   mkdir

/usr/local/google/home/thakis/src/llvm-project/out/gn/obj/llvm/test/Reduce/Output/remove-metadata.ll.tmp

: 'RUN: at line 7';   cp

/usr/local/google/home/thakis/src/llvm-project/llvm/test/Reduce/Inputs/remove-metadata.py

/usr/local/google/home/thakis/src/llvm-project/out/gn/obj/llvm/test/Reduce/Output/remove-metadata.ll.tmp/test.py

: 'RUN: at line 9';   echo "#!" "/usr/bin/python" >

/usr/local/google/home/thakis/src/llvm-project/out/gn/obj/llvm/test/Reduce/Output/remove-metadata.ll.tmp/test.py

: 'RUN: at line 11';   cat

/usr/local/google/home/thakis/src/llvm-project/llvm/test/Reduce/Inputs/remove-metadata.py

<span class="quote">>></span >

/usr/local/google/home/thakis/src/llvm-project/out/gn/obj/llvm/test/Reduce/Output/remove-metadata.ll.tmp/test.py

: 'RUN: at line 13';   llvm-reduce --test

/usr/local/google/home/thakis/src/llvm-project/out/gn/obj/llvm/test/Reduce/Output/remove-metadata.ll.tmp/test.py

/usr/local/google/home/thakis/src/llvm-project/llvm/test/Reduce/remove-metadata.ll

-o

/usr/local/google/home/thakis/src/llvm-project/out/gn/obj/llvm/test/Reduce/Output/remove-metadata.ll.tmp/out.ll

: 'RUN: at line 14';   cat

/usr/local/google/home/thakis/src/llvm-project/out/gn/obj/llvm/test/Reduce/Output/remove-metadata.ll.tmp/out.ll

| /usr/local/google/home/thakis/src/llvm-project/out/gn/bin/FileCheck

-implicit-check-not=!

/usr/local/google/home/thakis/src/llvm-project/llvm/test/Reduce/remove-metadata.ll

--

Exit Code: 1

Command Output (stdout):

--

*** Reducing GVs...

----------------------------

GlobalVariable Index Reference:

        1: global

----------------------------

*** Reducing Metadata...

--