[flang] [clang] [compiler-rt] [llvm] [libcxx] [openmp] [mlir] [libc] [clang-tools-extra] [lld] [ELF] --save-temps --lto-emit-asm: derive ELF/asm file names from bitcode file names (PR #78835)

Tue, 23 Jan 2024 12:54:09 -0800 

MaskRay wrote:

> We're seeing a test failure on our buildbot after this patch landed. Could 
> you take a look?
> 
> [lab.llvm.org/buildbot/#/builders/216/builds/33382/steps/7/logs/FAIL__lld__defsym_ll](https://lab.llvm.org/buildbot/#/builders/216/builds/33382/steps/7/logs/FAIL__lld__defsym_ll)
> 
> ```
> # RUN: at line 4
> z:\b\llvm-clang-x86_64-sie-win\build\bin\llvm-as.exe 
> Z:\b\llvm-clang-x86_64-sie-win\llvm-project\lld\test\ELF\lto/Inputs/defsym-bar.ll
>  -o 
> Z:\b\llvm-clang-x86_64-sie-win\build\tools\lld\test\ELF\lto\Output\defsym.ll.tmp1.o
> # executed command: 'z:\b\llvm-clang-x86_64-sie-win\build\bin\llvm-as.exe' 
> 'Z:\b\llvm-clang-x86_64-sie-win\llvm-project\lld\test\ELF\lto/Inputs/defsym-bar.ll'
>  -o 
> 'Z:\b\llvm-clang-x86_64-sie-win\build\tools\lld\test\ELF\lto\Output\defsym.ll.tmp1.o'
> # RUN: at line 5
> z:\b\llvm-clang-x86_64-sie-win\build\bin\ld.lld.exe 
> Z:\b\llvm-clang-x86_64-sie-win\build\tools\lld\test\ELF\lto\Output\defsym.ll.tmp.o
>  
> Z:\b\llvm-clang-x86_64-sie-win\build\tools\lld\test\ELF\lto\Output\defsym.ll.tmp1.o
>  -shared -o 
> Z:\b\llvm-clang-x86_64-sie-win\build\tools\lld\test\ELF\lto\Output\defsym.ll.tmp.so
>  -defsym=bar2=bar3 -save-temps
> # executed command: 'z:\b\llvm-clang-x86_64-sie-win\build\bin\ld.lld.exe' 
> 'Z:\b\llvm-clang-x86_64-sie-win\build\tools\lld\test\ELF\lto\Output\defsym.ll.tmp.o'
>  
> 'Z:\b\llvm-clang-x86_64-sie-win\build\tools\lld\test\ELF\lto\Output\defsym.ll.tmp1.o'
>  -shared -o 
> 'Z:\b\llvm-clang-x86_64-sie-win\build\tools\lld\test\ELF\lto\Output\defsym.ll.tmp.so'
>  -defsym=bar2=bar3 -save-temps
> # RUN: at line 6
> z:\b\llvm-clang-x86_64-sie-win\build\bin\llvm-readelf.exe --symbols 
> Z:\b\llvm-clang-x86_64-sie-win\build\tools\lld\test\ELF\lto\Output\defsym.ll.tmp.so.lto.o
>  | z:\b\llvm-clang-x86_64-sie-win\build\bin\filecheck.exe --check-prefix=OBJ 
> Z:\b\llvm-clang-x86_64-sie-win\llvm-project\lld\test\ELF\lto\defsym.ll
> # executed command: 
> 'z:\b\llvm-clang-x86_64-sie-win\build\bin\llvm-readelf.exe' --symbols 
> 'Z:\b\llvm-clang-x86_64-sie-win\build\tools\lld\test\ELF\lto\Output\defsym.ll.tmp.so.lto.o'
> # executed command: 'z:\b\llvm-clang-x86_64-sie-win\build\bin\filecheck.exe' 
> --check-prefix=OBJ 
> 'Z:\b\llvm-clang-x86_64-sie-win\llvm-project\lld\test\ELF\lto\defsym.ll'
> # RUN: at line 7
> z:\b\llvm-clang-x86_64-sie-win\build\bin\llvm-objdump.exe -d 
> Z:\b\llvm-clang-x86_64-sie-win\build\tools\lld\test\ELF\lto\Output\defsym.ll.tmp.so
>  | z:\b\llvm-clang-x86_64-sie-win\build\bin\filecheck.exe 
> Z:\b\llvm-clang-x86_64-sie-win\llvm-project\lld\test\ELF\lto\defsym.ll
> # executed command: 
> 'z:\b\llvm-clang-x86_64-sie-win\build\bin\llvm-objdump.exe' -d 
> 'Z:\b\llvm-clang-x86_64-sie-win\build\tools\lld\test\ELF\lto\Output\defsym.ll.tmp.so'
> # executed command: 'z:\b\llvm-clang-x86_64-sie-win\build\bin\filecheck.exe' 
> 'Z:\b\llvm-clang-x86_64-sie-win\llvm-project\lld\test\ELF\lto\defsym.ll'
> # RUN: at line 10
> z:\b\llvm-clang-x86_64-sie-win\build\bin\opt.exe -module-summary 
> Z:\b\llvm-clang-x86_64-sie-win\llvm-project\lld\test\ELF\lto\defsym.ll -o 
> Z:\b\llvm-clang-x86_64-sie-win\build\tools\lld\test\ELF\lto\Output\defsym.ll.tmp.o
> # executed command: 'z:\b\llvm-clang-x86_64-sie-win\build\bin\opt.exe' 
> -module-summary 
> 'Z:\b\llvm-clang-x86_64-sie-win\llvm-project\lld\test\ELF\lto\defsym.ll' -o 
> 'Z:\b\llvm-clang-x86_64-sie-win\build\tools\lld\test\ELF\lto\Output\defsym.ll.tmp.o'
> # RUN: at line 11
> z:\b\llvm-clang-x86_64-sie-win\build\bin\opt.exe -module-summary 
> Z:\b\llvm-clang-x86_64-sie-win\llvm-project\lld\test\ELF\lto/Inputs/defsym-bar.ll
>  -o 
> Z:\b\llvm-clang-x86_64-sie-win\build\tools\lld\test\ELF\lto\Output\defsym.ll.tmp1.o
> # executed command: 'z:\b\llvm-clang-x86_64-sie-win\build\bin\opt.exe' 
> -module-summary 
> 'Z:\b\llvm-clang-x86_64-sie-win\llvm-project\lld\test\ELF\lto/Inputs/defsym-bar.ll'
>  -o 
> 'Z:\b\llvm-clang-x86_64-sie-win\build\tools\lld\test\ELF\lto\Output\defsym.ll.tmp1.o'
> # RUN: at line 12
> z:\b\llvm-clang-x86_64-sie-win\build\bin\ld.lld.exe 
> Z:\b\llvm-clang-x86_64-sie-win\build\tools\lld\test\ELF\lto\Output\defsym.ll.tmp.o
>  
> Z:\b\llvm-clang-x86_64-sie-win\build\tools\lld\test\ELF\lto\Output\defsym.ll.tmp1.o
>  -shared -o 
> Z:\b\llvm-clang-x86_64-sie-win\build\tools\lld\test\ELF\lto\Output\defsym.ll.tmp2.so
>  -defsym=bar2=bar3 -save-temps
> # executed command: 'z:\b\llvm-clang-x86_64-sie-win\build\bin\ld.lld.exe' 
> 'Z:\b\llvm-clang-x86_64-sie-win\build\tools\lld\test\ELF\lto\Output\defsym.ll.tmp.o'
>  
> 'Z:\b\llvm-clang-x86_64-sie-win\build\tools\lld\test\ELF\lto\Output\defsym.ll.tmp1.o'
>  -shared -o 
> 'Z:\b\llvm-clang-x86_64-sie-win\build\tools\lld\test\ELF\lto\Output\defsym.ll.tmp2.so'
>  -defsym=bar2=bar3 -save-temps
> # RUN: at line 13
> z:\b\llvm-clang-x86_64-sie-win\build\bin\llvm-readelf.exe --symbols 
> Z:\b\llvm-clang-x86_64-sie-win\build\tools\lld\test\ELF\lto\Output\defsym.ll.tmp2.so1.lto.o
>  | z:\b\llvm-clang-x86_64-sie-win\build\bin\filecheck.exe --check-prefix=OBJ 
> Z:\b\llvm-clang-x86_64-sie-win\llvm-project\lld\test\ELF\lto\defsym.ll
> # executed command: 
> 'z:\b\llvm-clang-x86_64-sie-win\build\bin\llvm-readelf.exe' --symbols 
> 'Z:\b\llvm-clang-x86_64-sie-win\build\tools\lld\test\ELF\lto\Output\defsym.ll.tmp2.so1.lto.o'
> # .---command stderr------------
> # | z:\b\llvm-clang-x86_64-sie-win\build\bin\llvm-readelf.exe: error: 
> 'Z:\b\llvm-clang-x86_64-sie-win\build\tools\lld\test\ELF\lto\Output\defsym.ll.tmp2.so1.lto.o':
>  no such file or directory
> # `-----------------------------
> # error: command failed with exit status: 1
> # executed command: 'z:\b\llvm-clang-x86_64-sie-win\build\bin\filecheck.exe' 
> --check-prefix=OBJ 
> 'Z:\b\llvm-clang-x86_64-sie-win\llvm-project\lld\test\ELF\lto\defsym.ll'
> # .---command stderr------------
> # | FileCheck error: '<stdin>' is empty.
> # | FileCheck command line:  
> z:\b\llvm-clang-x86_64-sie-win\build\bin\filecheck.exe --check-prefix=OBJ 
> Z:\b\llvm-clang-x86_64-sie-win\llvm-project\lld\test\ELF\lto\defsym.ll
> # `-----------------------------
> # error: command failed with exit status: 2
> --
> ********************
> ```

We're seeing a test failure on our buildbot after this patch landed. Could you 
take a look?

[lab.llvm.org/buildbot/#/builders/216/builds/33382/steps/7/logs/FAIL__lld__defsym_ll](https://lab.llvm.org/buildbot/#/builders/216/builds/33382/steps/7/logs/FAIL__lld__defsym_ll)

```
# RUN: at line 4
z:\b\llvm-clang-x86_64-sie-win\build\bin\llvm-as.exe 
Z:\b\llvm-clang-x86_64-sie-win\llvm-project\lld\test\ELF\lto/Inputs/defsym-bar.ll
 -o 
Z:\b\llvm-clang-x86_64-sie-win\build\tools\lld\test\ELF\lto\Output\defsym.ll.tmp1.o
# executed command: 'z:\b\llvm-clang-x86_64-sie-win\build\bin\llvm-as.exe' 
'Z:\b\llvm-clang-x86_64-sie-win\llvm-project\lld\test\ELF\lto/Inputs/defsym-bar.ll'
 -o 
'Z:\b\llvm-clang-x86_64-sie-win\build\tools\lld\test\ELF\lto\Output\defsym.ll.tmp1.o'
# RUN: at line 5
z:\b\llvm-clang-x86_64-sie-win\build\bin\ld.lld.exe 
Z:\b\llvm-clang-x86_64-sie-win\build\tools\lld\test\ELF\lto\Output\defsym.ll.tmp.o
 
Z:\b\llvm-clang-x86_64-sie-win\build\tools\lld\test\ELF\lto\Output\defsym.ll.tmp1.o
 -shared -o 
Z:\b\llvm-clang-x86_64-sie-win\build\tools\lld\test\ELF\lto\Output\defsym.ll.tmp.so
 -defsym=bar2=bar3 -save-temps
# executed command: 'z:\b\llvm-clang-x86_64-sie-win\build\bin\ld.lld.exe' 
'Z:\b\llvm-clang-x86_64-sie-win\build\tools\lld\test\ELF\lto\Output\defsym.ll.tmp.o'
 
'Z:\b\llvm-clang-x86_64-sie-win\build\tools\lld\test\ELF\lto\Output\defsym.ll.tmp1.o'
 -shared -o 
'Z:\b\llvm-clang-x86_64-sie-win\build\tools\lld\test\ELF\lto\Output\defsym.ll.tmp.so'
 -defsym=bar2=bar3 -save-temps
# RUN: at line 6
z:\b\llvm-clang-x86_64-sie-win\build\bin\llvm-readelf.exe --symbols 
Z:\b\llvm-clang-x86_64-sie-win\build\tools\lld\test\ELF\lto\Output\defsym.ll.tmp.so.lto.o
 | z:\b\llvm-clang-x86_64-sie-win\build\bin\filecheck.exe --check-prefix=OBJ 
Z:\b\llvm-clang-x86_64-sie-win\llvm-project\lld\test\ELF\lto\defsym.ll
# executed command: 'z:\b\llvm-clang-x86_64-sie-win\build\bin\llvm-readelf.exe' 
--symbols 
'Z:\b\llvm-clang-x86_64-sie-win\build\tools\lld\test\ELF\lto\Output\defsym.ll.tmp.so.lto.o'
# executed command: 'z:\b\llvm-clang-x86_64-sie-win\build\bin\filecheck.exe' 
--check-prefix=OBJ 
'Z:\b\llvm-clang-x86_64-sie-win\llvm-project\lld\test\ELF\lto\defsym.ll'
# RUN: at line 7
z:\b\llvm-clang-x86_64-sie-win\build\bin\llvm-objdump.exe -d 
Z:\b\llvm-clang-x86_64-sie-win\build\tools\lld\test\ELF\lto\Output\defsym.ll.tmp.so
 | z:\b\llvm-clang-x86_64-sie-win\build\bin\filecheck.exe 
Z:\b\llvm-clang-x86_64-sie-win\llvm-project\lld\test\ELF\lto\defsym.ll
# executed command: 'z:\b\llvm-clang-x86_64-sie-win\build\bin\llvm-objdump.exe' 
-d 
'Z:\b\llvm-clang-x86_64-sie-win\build\tools\lld\test\ELF\lto\Output\defsym.ll.tmp.so'
# executed command: 'z:\b\llvm-clang-x86_64-sie-win\build\bin\filecheck.exe' 
'Z:\b\llvm-clang-x86_64-sie-win\llvm-project\lld\test\ELF\lto\defsym.ll'
# RUN: at line 10
z:\b\llvm-clang-x86_64-sie-win\build\bin\opt.exe -module-summary 
Z:\b\llvm-clang-x86_64-sie-win\llvm-project\lld\test\ELF\lto\defsym.ll -o 
Z:\b\llvm-clang-x86_64-sie-win\build\tools\lld\test\ELF\lto\Output\defsym.ll.tmp.o
# executed command: 'z:\b\llvm-clang-x86_64-sie-win\build\bin\opt.exe' 
-module-summary 
'Z:\b\llvm-clang-x86_64-sie-win\llvm-project\lld\test\ELF\lto\defsym.ll' -o 
'Z:\b\llvm-clang-x86_64-sie-win\build\tools\lld\test\ELF\lto\Output\defsym.ll.tmp.o'
# RUN: at line 11
z:\b\llvm-clang-x86_64-sie-win\build\bin\opt.exe -module-summary 
Z:\b\llvm-clang-x86_64-sie-win\llvm-project\lld\test\ELF\lto/Inputs/defsym-bar.ll
 -o 
Z:\b\llvm-clang-x86_64-sie-win\build\tools\lld\test\ELF\lto\Output\defsym.ll.tmp1.o
# executed command: 'z:\b\llvm-clang-x86_64-sie-win\build\bin\opt.exe' 
-module-summary 
'Z:\b\llvm-clang-x86_64-sie-win\llvm-project\lld\test\ELF\lto/Inputs/defsym-bar.ll'
 -o 
'Z:\b\llvm-clang-x86_64-sie-win\build\tools\lld\test\ELF\lto\Output\defsym.ll.tmp1.o'
# RUN: at line 12
z:\b\llvm-clang-x86_64-sie-win\build\bin\ld.lld.exe 
Z:\b\llvm-clang-x86_64-sie-win\build\tools\lld\test\ELF\lto\Output\defsym.ll.tmp.o
 
Z:\b\llvm-clang-x86_64-sie-win\build\tools\lld\test\ELF\lto\Output\defsym.ll.tmp1.o
 -shared -o 
Z:\b\llvm-clang-x86_64-sie-win\build\tools\lld\test\ELF\lto\Output\defsym.ll.tmp2.so
 -defsym=bar2=bar3 -save-temps
# executed command: 'z:\b\llvm-clang-x86_64-sie-win\build\bin\ld.lld.exe' 
'Z:\b\llvm-clang-x86_64-sie-win\build\tools\lld\test\ELF\lto\Output\defsym.ll.tmp.o'
 
'Z:\b\llvm-clang-x86_64-sie-win\build\tools\lld\test\ELF\lto\Output\defsym.ll.tmp1.o'
 -shared -o 
'Z:\b\llvm-clang-x86_64-sie-win\build\tools\lld\test\ELF\lto\Output\defsym.ll.tmp2.so'
 -defsym=bar2=bar3 -save-temps
# RUN: at line 13
z:\b\llvm-clang-x86_64-sie-win\build\bin\llvm-readelf.exe --symbols 
Z:\b\llvm-clang-x86_64-sie-win\build\tools\lld\test\ELF\lto\Output\defsym.ll.tmp2.so1.lto.o
 | z:\b\llvm-clang-x86_64-sie-win\build\bin\filecheck.exe --check-prefix=OBJ 
Z:\b\llvm-clang-x86_64-sie-win\llvm-project\lld\test\ELF\lto\defsym.ll
# executed command: 'z:\b\llvm-clang-x86_64-sie-win\build\bin\llvm-readelf.exe' 
--symbols 
'Z:\b\llvm-clang-x86_64-sie-win\build\tools\lld\test\ELF\lto\Output\defsym.ll.tmp2.so1.lto.o'
# .---command stderr------------
# | z:\b\llvm-clang-x86_64-sie-win\build\bin\llvm-readelf.exe: error: 
'Z:\b\llvm-clang-x86_64-sie-win\build\tools\lld\test\ELF\lto\Output\defsym.ll.tmp2.so1.lto.o':
 no such file or directory
# `-----------------------------
# error: command failed with exit status: 1
# executed command: 'z:\b\llvm-clang-x86_64-sie-win\build\bin\filecheck.exe' 
--check-prefix=OBJ 
'Z:\b\llvm-clang-x86_64-sie-win\llvm-project\lld\test\ELF\lto\defsym.ll'
# .---command stderr------------
# | FileCheck error: '<stdin>' is empty.
# | FileCheck command line:  
z:\b\llvm-clang-x86_64-sie-win\build\bin\filecheck.exe --check-prefix=OBJ 
Z:\b\llvm-clang-x86_64-sie-win\llvm-project\lld\test\ELF\lto\defsym.ll
# `-----------------------------
# error: command failed with exit status: 2
--
********************
```

Sorry for the failure. I did not remove stale output files and failed to 
noticed this.
Should be fixed by 4fcd7cf22deff4a63d2bac12c909be7266f8b353 (more tests using a 
lot of temporary outputs should consider `RUN: rm -rf %t && mkdir %t && cd %t`)

https://github.com/llvm/llvm-project/pull/78835
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