[clang] [lld] [llvm] [lld] Add support for sdata8 for FDE CIE (PR #174508)

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github-actions[bot] wrote:

<!--PREMERGE ADVISOR COMMENT: Windows-->
# :window: Windows x64 Test Results

* 129102 tests passed
* 2842 tests skipped
* 1 test failed

## Failed Tests
(click on a test name to see its output)

### Clang
<details>
<summary>Clang.Driver/flarge-fde-encoding.c</summary>

```
Exit Code: 1

Command Output (stdout):
--
# RUN: at line 2
c:\_work\llvm-project\llvm-project\build\bin\clang.exe -### --target=x86_64-linux-gnu -flarge-fde-encoding C:\_work\llvm-project\llvm-project\clang\test\Driver\flarge-fde-encoding.c 2>&1 | c:\_work\llvm-project\llvm-project\build\bin\filecheck.exe C:\_work\llvm-project\llvm-project\clang\test\Driver\flarge-fde-encoding.c --check-prefix=POS
# executed command: 'c:\_work\llvm-project\llvm-project\build\bin\clang.exe' '-###' --target=x86_64-linux-gnu -flarge-fde-encoding 'C:\_work\llvm-project\llvm-project\clang\test\Driver\flarge-fde-encoding.c'
# note: command had no output on stdout or stderr
# executed command: 'c:\_work\llvm-project\llvm-project\build\bin\filecheck.exe' 'C:\_work\llvm-project\llvm-project\clang\test\Driver\flarge-fde-encoding.c' --check-prefix=POS
# .---command stderr------------
# | C:\_work\llvm-project\llvm-project\clang\test\Driver\flarge-fde-encoding.c:6:9: error: POS: expected string not found in input
# | // POS: "-flarge-fde-encoding"
# |         ^
# | <stdin>:1:1: note: scanning from here
# | clang version 22.0.0git (https://github.com/llvm/llvm-project b20fe6808ca782c0d4139ec575cf39c177bd3f6c)
# | ^
# | <stdin>:6:53: note: possible intended match here
# | clang: warning: argument unused during compilation: '-flarge-fde-encoding' [-Wunused-command-line-argument]
# |                                                     ^
# | 
# | Input file: <stdin>
# | Check file: C:\_work\llvm-project\llvm-project\clang\test\Driver\flarge-fde-encoding.c
# | 
# | -dump-input=help explains the following input dump.
# | 
# | Input was:
# | <<<<<<
# |            1: clang version 22.0.0git (https://github.com/llvm/llvm-project b20fe6808ca782c0d4139ec575cf39c177bd3f6c) 
# | check:6'0     X~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ error: no match found
# |            2: Target: x86_64-unknown-linux-gnu 
# | check:6'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |            3: Thread model: posix 
# | check:6'0     ~~~~~~~~~~~~~~~~~~~~
# |            4: InstalledDir: C:\_work\llvm-project\llvm-project\build\bin 
# | check:6'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |            5: Build config: +assertions 
# | check:6'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~
# |            6: clang: warning: argument unused during compilation: '-flarge-fde-encoding' [-Wunused-command-line-argument] 
# | check:6'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# | check:6'1                                                         ?                                                        possible intended match
# |            7:  "C:\\_work\\llvm-project\\llvm-project\\build\\bin\\clang.exe" "-cc1" "-triple" "x86_64-unknown-linux-gnu" "-emit-obj" "-dumpdir" "a-" "-disable-free" "-clear-ast-before-backend" "-main-file-name" "flarge-fde-encoding.c" "-mrelocation-model" "pic" "-pic-level" "2" "-pic-is-pie" "-mframe-pointer=all" "-fmath-errno" "-ffp-contract=on" "-fno-rounding-math" "-mconstructor-aliases" "-funwind-tables=2" "-target-cpu" "x86-64" "-tune-cpu" "generic" "-debugger-tuning=gdb" "-fdebug-compilation-dir=C:\\_work\\llvm-project\\llvm-project\\build\\tools\\clang\\test\\Driver" "-fcoverage-compilation-dir=C:\\_work\\llvm-project\\llvm-project\\build\\tools\\clang\\test\\Driver" "-resource-dir" "C:\\_work\\llvm-project\\llvm-project\\build\\lib\\clang\\22" "-internal-isystem" "C:\\_work\\llvm-project\\llvm-project\\build\\lib\\clang\\22\\include" "-internal-isystem" "/usr/local/include" "-internal-externc-isystem" "/include" "-internal-externc-isystem" "/usr/include" "-ferror-limit" "19" "-fgnuc-version=4.2.1" "-fskip-odr-check-in-gmf" "-faddrsig" "-fdwarf2-cfi-asm" "-o" "C:\\Users\\ContainerAdministrator\\AppData\\Local\\Temp\\lit-tmp-bydmbss0\\flarge-fde-encoding-68e405.o" "-x" "c" "C:\\_work\\llvm-project\\llvm-project\\clang\\test\\Driver\\flarge-fde-encoding.c" 
# | check:6'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |            8:  "ld" "--hash-style=gnu" "--eh-frame-hdr" "-m" "elf_x86_64" "-pie" "-dynamic-linker" "/lib64/ld-linux-x86-64.so.2" "-o" "a.out" "Scrt1.o" "crti.o" "crtbeginS.o" "C:\\Users\\ContainerAdministrator\\AppData\\Local\\Temp\\lit-tmp-bydmbss0\\flarge-fde-encoding-68e405.o" "-lgcc" "--as-needed" "-lgcc_s" "--no-as-needed" "-lc" "-lgcc" "--as-needed" "-lgcc_s" "--no-as-needed" "crtendS.o" "crtn.o" 
# | check:6'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# | >>>>>>
# `-----------------------------
# error: command failed with exit status: 1

--

```
</details>

If these failures are unrelated to your changes (for example tests are broken or flaky at HEAD), please open an issue at https://github.com/llvm/llvm-project/issues and add the `infrastructure` label.

https://github.com/llvm/llvm-project/pull/174508