[llvm] [AArch64][MacroFusion] Fuse only tied AES pairs post-RA (PR #201610)

[via llvm-commits]

github-actions[bot] wrote:

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

* 175217 tests passed
* 3444 tests skipped
* 1 test failed

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

### LLVM
<details>
<summary>LLVM.CodeGen/AArch64/misched-fusion-crypto-eor.mir</summary>

```
Exit Code: 1

Command Output (stdout):
--
# RUN: at line 1
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc -o /dev/null /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/misched-fusion-crypto-eor.mir -run-pass=machine-scheduler -mtriple aarch64-- -mattr=-fuse-aes,+crypto -misched-print-dags 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/misched-fusion-crypto-eor.mir --check-prefixes=CHECK,NOFUSE
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc -o /dev/null /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/misched-fusion-crypto-eor.mir -run-pass=machine-scheduler -mtriple aarch64-- -mattr=-fuse-aes,+crypto -misched-print-dags
# 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/misched-fusion-crypto-eor.mir --check-prefixes=CHECK,NOFUSE
# note: command had no output on stdout or stderr
# RUN: at line 2
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc -o /dev/null /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/misched-fusion-crypto-eor.mir -run-pass=machine-scheduler -mtriple aarch64-- -mattr=+fuse-aes,+crypto -misched-print-dags 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/misched-fusion-crypto-eor.mir --check-prefixes=CHECK,FUSEAES
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc -o /dev/null /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/misched-fusion-crypto-eor.mir -run-pass=machine-scheduler -mtriple aarch64-- -mattr=+fuse-aes,+crypto -misched-print-dags
# note: command had no output on stdout or stderr
# error: command failed with exit status: -6
# 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/misched-fusion-crypto-eor.mir --check-prefixes=CHECK,FUSEAES
# .---command stderr------------
# | /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/misched-fusion-crypto-eor.mir:12:11: error: CHECK: expected string not found in input
# |  ; CHECK: SU(0): %0:fpr128 = AESErr undef $q0(tied-def 0), undef $q1
# |           ^
# | <stdin>:1:1: note: scanning from here
# | llc: /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/Target/AArch64/AArch64MacroFusion.cpp:126: bool haveWAWDependency(const MachineInstr &, const MachineInstr &): Assertion `DestFirst.isPhysical() && DestSecond.isPhysical() && "Pair should have physical registers post-RA"' failed.
# | ^
# | <stdin>:2:118: note: possible intended match here
# | PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace and instructions to reproduce the bug.
# |                                                                                                                      ^
# | 
# | Input file: <stdin>
# | Check file: /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/misched-fusion-crypto-eor.mir
# | 
# | -dump-input=help explains the following input dump.
# | 
# | Input was:
# | <<<<<<
# |             1: llc: /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/Target/AArch64/AArch64MacroFusion.cpp:126: bool haveWAWDependency(const MachineInstr &, const MachineInstr &): Assertion `DestFirst.isPhysical() && DestSecond.isPhysical() && "Pair should have physical registers post-RA"' failed. 
# | check:12'0     X~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ error: no match found
# |             2: 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:12'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# | check:12'1                                                                                                                          ?                             possible intended match
# |             3: Stack dump: 
# | check:12'0     ~~~~~~~~~~~~
# |             4: 0. Program arguments: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc -o /dev/null /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/misched-fusion-crypto-eor.mir -run-pass=machine-scheduler -mtriple aarch64-- -mattr=+fuse-aes,+crypto -misched-print-dags 
# | check:12'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |             5: 1. Running pass 'Function Pass Manager' on module '/home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/misched-fusion-crypto-eor.mir'. 
# | check:12'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |             6: 2. Running pass 'Machine Instruction Scheduler' on function '@func' 
# | check:12'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |             7:  #0 0x00000000085baa18 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/Support/Unix/Signals.inc:881:13 
# | check:12'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |             .
# |             .
# |             .
# | >>>>>>
# `-----------------------------
# 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/201610