https://bugs.llvm.org/show_bug.cgi?id=40351
Bug ID: 40351
Summary: ThinLTO/X86/cfi-devirt.ll test appears flaky
Product: libraries
Version: trunk
Hardware: PC
OS: All
Status: NEW
Severity: enhancement
Priority: P
Component: Interprocedural Optimizations
Assignee: unassignedb...@nondot.org
Reporter: v...@tsyrklevich.net
CC: llvm-bugs@lists.llvm.org, pe...@pcc.me.uk,
tejohn...@google.com
While trying to identify instances of an msan test flake, I also found that
this test is flaking on multiple bots, e.g. some example failures:
http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux-bootstrap-msan/builds/9865/steps/annotate/logs/stdio
http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux-bootstrap-msan/builds/9862/steps/check-llvm%20check-clang%20stage3%2Fmsan/logs/stdio
http://lab.llvm.org:8011/builders/clang-with-thin-lto-ubuntu/builds/14927/steps/test-stage1-compiler/logs/stdio
Unfortunately the test failure itself doesn't print any useful indication as to
where it's failing:
FAIL: LLVM :: ThinLTO/X86/cfi-devirt.ll (23018 of 29363)
******************** TEST 'LLVM :: ThinLTO/X86/cfi-devirt.ll' FAILED
********************
Script:
--
: 'RUN: at line 5';
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/bin/opt
-thinlto-bc -thinlto-split-lto-unit -o
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm/test/ThinLTO/X86/cfi-devirt.ll
: 'RUN: at line 9';
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/bin/llvm-lto2
run
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o
-save-temps -pass-remarks=. -verify-machineinstrs=0 -o
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp3
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,test,px
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZN1A1nEi,p
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZN1B1fEi,p
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZN1C1fEi,p
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,empty,p
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZTV1B,
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZTV1C,
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZN1A1nEi,
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZN1B1fEi,
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZN1C1fEi,
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZTV1B,px
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZTV1C,px
2>&1 |
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/bin/FileCheck
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm/test/ThinLTO/X86/cfi-devirt.ll
--check-prefix=REMARK
: 'RUN: at line 24';
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/bin/llvm-dis
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp3.1.4.opt.bc
-o - |
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/bin/FileCheck
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm/test/ThinLTO/X86/cfi-devirt.ll
--check-prefix=CHECK-IR
: 'RUN: at line 28';
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/bin/llvm-lto2
run
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o
-save-temps -use-new-pm -pass-remarks=. -verify-machineinstrs=0 -o
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp3
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,test,px
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZN1A1nEi,p
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZN1B1fEi,p
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZN1C1fEi,p
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,empty,p
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZTV1B,
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZTV1C,
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZN1A1nEi,
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZN1B1fEi,
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZN1C1fEi,
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZTV1B,px
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZTV1C,px
2>&1 |
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/bin/FileCheck
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm/test/ThinLTO/X86/cfi-devirt.ll
--check-prefix=REMARK
: 'RUN: at line 43';
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/bin/llvm-dis
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp3.1.4.opt.bc
-o - |
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/bin/FileCheck
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm/test/ThinLTO/X86/cfi-devirt.ll
--check-prefix=CHECK-IR
: 'RUN: at line 50';
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/bin/opt
-thinlto-bc -o
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp2.o
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm/test/ThinLTO/X86/Inputs/empty.ll
: 'RUN: at line 51'; not
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/bin/llvm-lto2
run
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp2.o
-save-temps -pass-remarks=. -verify-machineinstrs=0 -o
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp3
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,test,px
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZN1A1nEi,p
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZN1B1fEi,p
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZN1C1fEi,p
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,empty,p
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZTV1B,
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZTV1C,
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZN1A1nEi,
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZN1B1fEi,
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZN1C1fEi,
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZTV1B,px
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZTV1C,px
2>&1 |
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/bin/FileCheck
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm/test/ThinLTO/X86/cfi-devirt.ll
--check-prefix=ERROR
--
Exit Code: 1
--
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