[llvm-branch-commits] [llvm] NVPTX: Drop LiveVariables from the register allocation pipeline (PR #225183)

[via llvm-branch-commits]

github-actions[bot] wrote:

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

* 154240 tests passed
* 3427 tests skipped
* 1 test failed

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

### LLVM
<details>
<summary>LLVM.CodeGen/AMDGPU/lower-control-flow-live-variables-update.mir</summary>

```
Exit Code: 1

Command Output (stdout):
--
# RUN: at line 2
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc -mtriple=amdgpu7.00-amd-amdhsa -start-before=livevars -stop-after=twoaddressinstruction -verify-machineinstrs -o - /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AMDGPU/lower-control-flow-live-variables-update.mir | /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AMDGPU/lower-control-flow-live-variables-update.mir
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc -mtriple=amdgpu7.00-amd-amdhsa -start-before=livevars -stop-after=twoaddressinstruction -verify-machineinstrs -o - /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AMDGPU/lower-control-flow-live-variables-update.mir
# 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/AMDGPU/lower-control-flow-live-variables-update.mir
# .---command stderr------------
# | /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AMDGPU/lower-control-flow-live-variables-update.mir:294:16: error: CHECK-NEXT: expected string not found in input
# |  ; CHECK-NEXT: $exec = S_OR_B64_term $exec, [[COPY4]], implicit-def $scc
# |                ^
# | <stdin>:697:26: note: scanning from here
# |  %8:sreg_64 = S_MOV_B64 1
# |                          ^
# | <stdin>:697:26: note: with "COPY4" equal to "%4"
# |  %8:sreg_64 = S_MOV_B64 1
# |                          ^
# | <stdin>:698:2: note: possible intended match here
# |  $exec = S_OR_B64_term $exec, %4, implicit-def dead $scc
# |  ^
# | 
# | Input file: <stdin>
# | Check file: /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AMDGPU/lower-control-flow-live-variables-update.mir
# | 
# | -dump-input=help explains the following input dump.
# | 
# | Input was:
# | <<<<<<
# |             .
# |             .
# |             .
# |           692:   
# |           693:  bb.1: 
# |           694:  successors: %bb.4(0x80000000) 
# |           695:   
# |           696:  %4:sreg_64_xexec = COPY %12 
# |           697:  %8:sreg_64 = S_MOV_B64 1 
# | next:294'0                             {   search range start (exclusive)
# | next:294'1                                 error: no match found in search range
# | next:294'2                                 with "COPY4" equal to "%4"
# |           698:  $exec = S_OR_B64_term $exec, %4, implicit-def dead $scc 
# | next:294'3      ?                                                         possible intended match
# |           699:   
# |           700:  bb.4: 
# |           701:  successors: %bb.2(0x80000000) 
# |           702:   
# |           703:  %6:vgpr_32 = COPY %13 
# |             .
# |             .
# |             .
# |           722:  %5:sreg_64_xexec = S_XOR_B64 %18, %17, implicit-def dead $scc 
# |           723:  $exec = S_MOV_B64_term %18 
# |           724:  %12:sreg_64_xexec = S_MOV_B64_term %5, implicit $exec 
# |           725:  S_CBRANCH_EXECZ %bb.1, implicit $exec 
# |           726:  S_BRANCH %bb.3 
# |           727: ... 
# | next:294'4         } search range end (exclusive)
# | >>>>>>
# `-----------------------------
# 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/225183