[llvm-dev] Apropos "shouting": PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT

Sun Aug 23 11:00:17 PDT 2020

"David Blaikie" <dblaikie at gmail.com> wrote:

> Context is everything.

I'm willing to accept your humble apologies.

> Spotting the relevant details in long build output
> can be tricky & some emphasis (caps, the *** borders, etc) can be useful.

So you dare to "shout" at your users/customers, but mock when someone (me)
uses the same sort of emphasis, albeit just on SINGLE words, not on whole
lines?
"o tempora, o mores!"

Alternative, NOT "shouting":
____________________________________________________
Please attach the following files to the bug report:
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
Hint: even the Windows console allows to output INVERSE text, which
      would be even more outstanding and easier to spot.

Also: hashed #### or slashed //// borders are far better eye-catchers
      than starred **** borders!
      The same holds for @@@@ and $$$$.
      I recommend a beginner's course in visual perception or UI design.

Now go and fix the bug resulting in the crash I demonstrated below!

Stefan

> On Sun, Aug 23, 2020 at 5:21 AM Stefan Kanthak via llvm-dev <
> llvm-dev at lists.llvm.org> wrote:
>
>> Who's "shouting" here? Even in complete lines, 9 consecutive words!
>>
>>
>> PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
>> Preprocessed source(s) and associated run script(s) are located at:
>> clang: note: diagnostic msg: C:\Windows\Temp\crash-74a40f.c
>> clang: note: diagnostic msg: C:\Windows\Temp\crash-74a40f.sh
>> clang: note: diagnostic msg:
>>
>> ********************
>>
>> --- crash-74a40f.c ---
>> # 1 "<built-in>"
>> # 1 "crash.c"
>> // Copyright (C) 2020 Stefan Kanthak <stefan.kanthak at nexgo.de>
>>
>> long dummy;
>>
>> __attribute__((naked))
>> long function(void)
>> {
>>    __asm__(".data\n"
>>            "dummy:\n"
>>            ".quad\t0\n"
>>            ".text\n"
>>            ".intel_syntax noprefix\n"
>>            "\tmov\trax, dummy\n"
>>            "\tret\n");
>> }
>> --- EOF ---
>>
>> --- crash-74a40f.sh ---
>> # Crash reproducer for clang version 10.0.0
>> # Driver args: "-c" "-m64" "crash.c"
>> # Original command:  "C:\\Program Files\\LLVM\\bin\\clang.exe" "-cc1"
>> "-triple"
>> "x86_64-pc-windows-msvc19.11.0" "-emit-obj" "-mrelax-all"
>> "-mincremental-linker-
>> compatible" "-disable-free" "-disable-llvm-verifier"
>> "-discard-value-names" "-ma
>> in-file-name" "crash.c" "-mrelocation-model" "pic" "-pic-level" "2"
>> "-mthread-mo
>> del" "posix" "-mframe-pointer=none" "-fmath-errno" "-fno-rounding-math"
>> "-masm-v
>> erbose" "-mconstructor-aliases" "-munwind-tables" "-target-cpu" "x86-64"
>> "-dwarf
>> -column-info" "-resource-dir" "C:\\Program
>> Files\\LLVM\\lib\\clang\\10.0.0" "-in
>> ternal-isystem" "C:\\Program Files\\LLVM\\lib\\clang\\10.0.0\\include"
>> "-fdebug-
>> compilation-dir" "C:\\Windows\\Temp" "-ferror-limit" "19"
>> "-fmessage-length" "80
>> " "-fno-use-cxa-atexit" "-fms-extensions" "-fms-compatibility"
>> "-fms-compatibili
>> ty-version=19.11" "-fdelayed-template-parsing" "-fobjc-runtime=gcc"
>> "-fdiagnosti
>> cs-show-option" "-fcolor-diagnostics" "-faddrsig" "-o" "crash.o" "-x" "c"
>> "crash
>> .c"
>>  "C:\\Program Files\\LLVM\\bin\\clang.exe" "-cc1" "-triple"
>> "x86_64-pc-windows-m
>> svc19.11.0" "-emit-obj" "-mrelax-all" "-mincremental-linker-compatible"
>> "-disabl
>> e-free" "-disable-llvm-verifier" "-discard-value-names" "-main-file-name"
>> "crash
>> .c" "-mrelocation-model" "pic" "-pic-level" "2" "-mthread-model" "posix"
>> "-mfram
>> e-pointer=none" "-fmath-errno" "-fno-rounding-math" "-masm-verbose"
>> "-mconstruct
>> or-aliases" "-munwind-tables" "-target-cpu" "x86-64" "-dwarf-column-info"
>> "-ferr
>> or-limit" "19" "-fmessage-length" "80" "-fno-use-cxa-atexit"
>> "-fms-extensions" "
>> -fms-compatibility" "-fms-compatibility-version=19.11"
>> "-fdelayed-template-parsi
>> ng" "-fobjc-runtime=gcc" "-fdiagnostics-show-option" "-fcolor-diagnostics"
>> "-fad
>> drsig" "-x" "c" "crash-74a40f.c"
>> --- EOF ---
>>
>> fatal error: error in backend: symbol 'dummy' is already defined
>> Stack dump:
>> 0.      Program arguments: C:\Program Files\LLVM\bin\clang.exe -c -m64
>> crash.c
>> 1.      <eof> parser at end of file
>> 2.      Code generation
>>  #0 0x000007fefd2eb87d (C:\Windows\system32\KERNELBASE.dll+0xb87d)
>>  #1 0x0000000140db6eca C:\Program Files\LLVM\bin\clang.exe 0x16b6eca
>> C:\Program Files\LLVM\bin\clang.exe 0x16935a3
>>  #2 0x0000000140db6eca C:\Program Files\LLVM\bin\clang.exe 0x71f9
>> C:\Program Files\LLVM\bin\clang.exe 0x16bbee7
>>  #3 0x0000000140db6eca C:\Program Files\LLVM\bin\clang.exe 0x1f84176
>> C:\Program Files\LLVM\bin\clang.exe 0x1f892b7
>>  #4 0x0000000140db6eca C:\Program Files\LLVM\bin\clang.exe 0x1198ec1
>> C:\Program Files\LLVM\bin\clang.exe 0x1199442
>>  #5 0x0000000140db6eca C:\Program Files\LLVM\bin\clang.exe 0x18e1cb3
>> C:\Program Files\LLVM\bin\clang.exe 0x36ab935
>>  #6 0x0000000140db6eca C:\Program Files\LLVM\bin\clang.exe 0x28898a3
>> C:\Program Files\LLVM\bin\clang.exe 0x1dadb02
>>  #7 0x0000000140db6eca C:\Program Files\LLVM\bin\clang.exe 0x1d70bc0
>> C:\Program Files\LLVM\bin\clang.exe 0x1e08ca9
>>  #8 0x0000000140db6eca C:\Program Files\LLVM\bin\clang.exe 0x6ebf
>> C:\Program Files\LLVM\bin\clang.exe 0x4337
>>  #9 0x0000000140db6eca C:\Program Files\LLVM\bin\clang.exe 0x1d0d7c6
>> C:\Program Files\LLVM\bin\clang.exe 0x16b6d33
>> #10 0x0000000140db6eca C:\Program Files\LLVM\bin\clang.exe 0x1d0d00b
>> C:\Program Files\LLVM\bin\clang.exe 0x1c311d8
>> #11 0x0000000140db6eca C:\Program Files\LLVM\bin\clang.exe 0x1c316d4
>> C:\Program Files\LLVM\bin\clang.exe 0x1c1f357
>> #12 0x0000000140db6eca C:\Program Files\LLVM\bin\clang.exe 0x3c93
>> C:\Program Files\LLVM\bin\clang.exe 0x36c74a0
>> #13 0x0000000140db6eca (C:\Program Files\LLVM\bin\clang.exe+0x16b6eca)
>> #14 0x0000000140d935a3 (C:\Program Files\LLVM\bin\clang.exe+0x16935a3)
>> [...]
>> clang: error: clang frontend command failed with exit code 70 (use -v to
>> see invocation)
>> clang version 10.0.0
>> Target: x86_64-pc-windows-msvc
>> Thread model: posix
>> InstalledDir: C:\Program Files\LLVM\bin
>> clang: note: diagnostic msg: PLEASE submit a bug report to
>> https://bugs.llvm.org/ and include the crash backtrace, preprocessed
>> source, and associated run script.
>> clang: note: diagnostic msg:
>> ********************
>> _______________________________________________
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>>