[llvm] [AArch64] Make IFUNC opt-in rather than opt-out. (PR #171648)

[via llvm-commits]

github-actions[bot] wrote:

<!--PREMERGE ADVISOR COMMENT: Linux-->
# :penguin: Linux x64 Test Results

* 166985 tests passed
* 2924 tests skipped
* 1 test failed

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

### LLVM
<details>
<summary>LLVM.CodeGen/AArch64/ptrauth-reloc.ll</summary>

```
Exit Code: 1

Command Output (stdout):
--
# RUN: at line 1
rm -rf /home/gha/actions-runner/_work/llvm-project/llvm-project/build/test/CodeGen/AArch64/Output/ptrauth-reloc.ll.tmp && split-file /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/ptrauth-reloc.ll /home/gha/actions-runner/_work/llvm-project/llvm-project/build/test/CodeGen/AArch64/Output/ptrauth-reloc.ll.tmp && cd /home/gha/actions-runner/_work/llvm-project/llvm-project/build/test/CodeGen/AArch64/Output/ptrauth-reloc.ll.tmp
# executed command: rm -rf /home/gha/actions-runner/_work/llvm-project/llvm-project/build/test/CodeGen/AArch64/Output/ptrauth-reloc.ll.tmp
# note: command had no output on stdout or stderr
# executed command: split-file /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/ptrauth-reloc.ll /home/gha/actions-runner/_work/llvm-project/llvm-project/build/test/CodeGen/AArch64/Output/ptrauth-reloc.ll.tmp
# note: command had no output on stdout or stderr
# executed command: cd /home/gha/actions-runner/_work/llvm-project/llvm-project/build/test/CodeGen/AArch64/Output/ptrauth-reloc.ll.tmp
# note: command had no output on stdout or stderr
# RUN: at line 5
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc < ok.ll -mtriple arm64e-apple-darwin    | /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/ptrauth-reloc.ll --check-prefix=CHECK-MACHO
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc -mtriple arm64e-apple-darwin
# note: command had no output on stdout or stderr
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/ptrauth-reloc.ll --check-prefix=CHECK-MACHO
# note: command had no output on stdout or stderr
# RUN: at line 7
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc < ok.ll -mtriple aarch64-elf -mattr=+pauth    | /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/ptrauth-reloc.ll --check-prefix=CHECK-ELF
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc -mtriple aarch64-elf -mattr=+pauth
# note: command had no output on stdout or stderr
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/ptrauth-reloc.ll --check-prefix=CHECK-ELF
# note: command had no output on stdout or stderr
# RUN: at line 10
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc < ok.ll -mtriple arm64e-apple-darwin    -global-isel -verify-machineinstrs -global-isel-abort=1    | /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/ptrauth-reloc.ll --check-prefix=CHECK-MACHO
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc -mtriple arm64e-apple-darwin -global-isel -verify-machineinstrs -global-isel-abort=1
# note: command had no output on stdout or stderr
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/ptrauth-reloc.ll --check-prefix=CHECK-MACHO
# note: command had no output on stdout or stderr
# RUN: at line 13
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc < ok.ll -mtriple aarch64-elf -mattr=+pauth    -global-isel -verify-machineinstrs -global-isel-abort=1    | /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/ptrauth-reloc.ll --check-prefix=CHECK-ELF
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc -mtriple aarch64-elf -mattr=+pauth -global-isel -verify-machineinstrs -global-isel-abort=1
# note: command had no output on stdout or stderr
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/ptrauth-reloc.ll --check-prefix=CHECK-ELF
# note: command had no output on stdout or stderr
# RUN: at line 142
not /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc < err-key.ll -mtriple arm64e-apple-darwin 2>&1    | /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/ptrauth-reloc.ll --check-prefix=CHECK-ERR-KEY
# executed command: not /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc -mtriple arm64e-apple-darwin
# note: command had no output on stdout or stderr
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/ptrauth-reloc.ll --check-prefix=CHECK-ERR-KEY
# note: command had no output on stdout or stderr
# RUN: at line 144
not /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc < err-key.ll -mtriple aarch64-elf -mattr=+pauth 2>&1    | /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/ptrauth-reloc.ll --check-prefix=CHECK-ERR-KEY
# executed command: not /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc -mtriple aarch64-elf -mattr=+pauth
# note: command had no output on stdout or stderr
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/ptrauth-reloc.ll --check-prefix=CHECK-ERR-KEY
# note: command had no output on stdout or stderr
# RUN: at line 147
not /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc < err-key.ll -mtriple arm64e-apple-darwin    -global-isel -verify-machineinstrs -global-isel-abort=1  2>&1    | /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/ptrauth-reloc.ll --check-prefix=CHECK-ERR-KEY
# executed command: not /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc -mtriple arm64e-apple-darwin -global-isel -verify-machineinstrs -global-isel-abort=1
# note: command had no output on stdout or stderr
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/ptrauth-reloc.ll --check-prefix=CHECK-ERR-KEY
# note: command had no output on stdout or stderr
# RUN: at line 150
not /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc < err-key.ll -mtriple aarch64-elf -mattr=+pauth    -global-isel -verify-machineinstrs -global-isel-abort=1 2>&1    | /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/ptrauth-reloc.ll --check-prefix=CHECK-ERR-KEY
# executed command: not /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc -mtriple aarch64-elf -mattr=+pauth -global-isel -verify-machineinstrs -global-isel-abort=1
# note: command had no output on stdout or stderr
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/ptrauth-reloc.ll --check-prefix=CHECK-ERR-KEY
# note: command had no output on stdout or stderr
# RUN: at line 162
not /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc < err-disc.ll -mtriple arm64e-apple-darwin 2>&1    | /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/ptrauth-reloc.ll --check-prefix=CHECK-ERR-DISC
# executed command: not /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc -mtriple arm64e-apple-darwin
# note: command had no output on stdout or stderr
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/ptrauth-reloc.ll --check-prefix=CHECK-ERR-DISC
# note: command had no output on stdout or stderr
# RUN: at line 164
not /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc < err-disc.ll -mtriple aarch64-elf -mattr=+pauth 2>&1    | /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/ptrauth-reloc.ll --check-prefix=CHECK-ERR-DISC
# executed command: not /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc -mtriple aarch64-elf -mattr=+pauth
# note: command had no output on stdout or stderr
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/ptrauth-reloc.ll --check-prefix=CHECK-ERR-DISC
# note: command had no output on stdout or stderr
# RUN: at line 167
not /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc < err-disc.ll -mtriple arm64e-apple-darwin    -global-isel -verify-machineinstrs -global-isel-abort=1  2>&1    | /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/ptrauth-reloc.ll --check-prefix=CHECK-ERR-DISC
# executed command: not /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc -mtriple arm64e-apple-darwin -global-isel -verify-machineinstrs -global-isel-abort=1
# note: command had no output on stdout or stderr
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/ptrauth-reloc.ll --check-prefix=CHECK-ERR-DISC
# note: command had no output on stdout or stderr
# RUN: at line 170
not /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc < err-disc.ll -mtriple aarch64-elf -mattr=+pauth    -global-isel -verify-machineinstrs -global-isel-abort=1 2>&1    | /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/ptrauth-reloc.ll --check-prefix=CHECK-ERR-DISC
# executed command: not /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc -mtriple aarch64-elf -mattr=+pauth -global-isel -verify-machineinstrs -global-isel-abort=1
# note: command had no output on stdout or stderr
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/ptrauth-reloc.ll --check-prefix=CHECK-ERR-DISC
# note: command had no output on stdout or stderr
# RUN: at line 181
not /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc < err-disc-elf.ll -mtriple aarch64-elf -mattr=+pauth 2>&1    | /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/ptrauth-reloc.ll --check-prefix=CHECK-ERR-DISC-ELF
# executed command: not /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc -mtriple aarch64-elf -mattr=+pauth
# note: command had no output on stdout or stderr
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/ptrauth-reloc.ll --check-prefix=CHECK-ERR-DISC-ELF
# .---command stderr------------
# | /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/ptrauth-reloc.ll:193:23: error: CHECK-ERR-DISC-ELF: expected string not found in input
# | ; CHECK-ERR-DISC-ELF: error: AArch64 PAC Discriminator '65538' out of range [0, 0xFFFF]
# |                       ^
# | <stdin>:1:1: note: scanning from here
# | error: AArch64 PAC Discriminator '65537' out of range [0, 0xFFFF]
# | ^
# | 
# | Input file: <stdin>
# | Check file: /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/ptrauth-reloc.ll
# | 
# | -dump-input=help explains the following input dump.
# | 
# | Input was:
# | <<<<<<
# |            1: error: AArch64 PAC Discriminator '65537' out of range [0, 0xFFFF] 
# | check:193     X~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ error: no match found
# |            2: LLVM ERROR: deactivation symbols unsupported in constant expressions on this target 
# | check:193     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |            3: PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace and instructions to reproduce the bug. 
# | check:193     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |            4: Stack dump: 
# | check:193     ~~~~~~~~~~~~
# |            5: 0. Program arguments: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc -mtriple aarch64-elf -mattr=+pauth 
# | check:193     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |            6:  #0 0x0000000007f5a958 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/Support/Unix/Signals.inc:834:13 
# | check:193     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |            .
# |            .
# |            .
# | >>>>>>
# `-----------------------------
# 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/171648