LLVM 20.1.5 test failure

[RossComputerGuy]

When bumping LLVM for Nix from 20.1.4 to 20.1.5, we get a test failure.

llvm> An error occurred retrieving the git revision: [Errno 2] No such file or directory: 'git'
llvm> -- Testing: 60603 tests, 128 workers --
llvm> FAIL: LLVM :: CodeGen/Hexagon/isel/pfalse-v4i1.ll (12898 of 60603)
llvm> ******************** TEST 'LLVM :: CodeGen/Hexagon/isel/pfalse-v4i1.ll' FAILED ********************
llvm> Exit Code: 1
llvm>
llvm> Command Output (stderr):
llvm> --
llvm> RUN: at line 1: /build/llvm-src-20.1.5/llvm/build/bin/llc -march=hexagon -debug-only=isel 2>&1 < /build/llvm-src-20.1.5/llvm/test/CodeGen/Hexagon/isel/pfalse-v4i1.ll - | /build/llvm-src-20.1.5/llvm/build/bin/FileCheck /build/llvm-src-20.1.5/llvm/test/CodeGen/Hexagon/isel/pfalse-v4i1.ll
llvm> + /build/llvm-src-20.1.5/llvm/build/bin/llc -march=hexagon -debug-only=isel -
llvm> + /build/llvm-src-20.1.5/llvm/build/bin/FileCheck /build/llvm-src-20.1.5/llvm/test/CodeGen/Hexagon/isel/pfalse-v4i1.ll
llvm> /build/llvm-src-20.1.5/llvm/test/CodeGen/Hexagon/isel/pfalse-v4i1.ll:3:10: error: CHECK: expected string not found in input
llvm> ; CHECK: [[R0:%[0-9]+]]:intregs = A2_tfrsi 0
llvm>          ^
llvm> <stdin>:1:1: note: scanning from here
llvm> llc: Unknown command line argument '-debug-only=isel'. Try: '/build/llvm-src-20.1.5/llvm/build/bin/llc --help'
llvm> ^
llvm> <stdin>:1:22: note: possible intended match here
llvm> llc: Unknown command line argument '-debug-only=isel'. Try: '/build/llvm-src-20.1.5/llvm/build/bin/llc --help'
llvm>                      ^
llvm>
llvm> Input file: <stdin>
llvm> Check file: /build/llvm-src-20.1.5/llvm/test/CodeGen/Hexagon/isel/pfalse-v4i1.ll
llvm>
llvm> -dump-input=help explains the following input dump.
llvm>
llvm> Input was:
llvm> <<<<<<
llvm>            1: llc: Unknown command line argument '-debug-only=isel'. Try: '/build/llvm-src-20.1.5/llvm/build/bin/llc --help'
llvm> check:3'0     X~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ error: no match found
llvm> check:3'1                          ?                                                                                          possible intended match
llvm>            2: llc: Did you mean '--debug-pass=isel'?
llvm> check:3'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
llvm> >>>>>>
llvm>
llvm> --
llvm>
llvm> ********************
llvm> ********************
llvm> Failed Tests (1):
llvm>   LLVM :: CodeGen/Hexagon/isel/pfalse-v4i1.ll
llvm>
llvm>
llvm> Testing Time: 115.02s
llvm>
llvm> Total Discovered Tests: 65162
llvm>   Skipped          :    20 (0.03%)
llvm>   Unsupported      :  2238 (3.43%)
llvm>   Passed           : 62710 (96.24%)
llvm>   Expectedly Failed:   193 (0.30%)
llvm>   Failed           :     1 (0.00%)

[llvmbot]

@llvm/issue-subscribers-backend-hexagon

Author: Tristan Ross (RossComputerGuy)

When bumping LLVM for Nix from 20.1.4 to 20.1.5, we get a test failure. ``` llvm> An error occurred retrieving the git revision: [Errno 2] No such file or directory: 'git' llvm> -- Testing: 60603 tests, 128 workers -- llvm> FAIL: LLVM :: CodeGen/Hexagon/isel/pfalse-v4i1.ll (12898 of 60603) llvm> ******************** TEST 'LLVM :: CodeGen/Hexagon/isel/pfalse-v4i1.ll' FAILED ******************** llvm> Exit Code: 1 llvm> llvm> Command Output (stderr): llvm> -- llvm> RUN: at line 1: /build/llvm-src-20.1.5/llvm/build/bin/llc -march=hexagon -debug-only=isel 2>&1 < /build/llvm-src-20.1.5/llvm/test/CodeGen/Hexagon/isel/pfalse-v4i1.ll - | /build/llvm-src-20.1.5/llvm/build/bin/FileCheck /build/llvm-src-20.1.5/llvm/test/CodeGen/Hexagon/isel/pfalse-v4i1.ll llvm> + /build/llvm-src-20.1.5/llvm/build/bin/llc -march=hexagon -debug-only=isel - llvm> + /build/llvm-src-20.1.5/llvm/build/bin/FileCheck /build/llvm-src-20.1.5/llvm/test/CodeGen/Hexagon/isel/pfalse-v4i1.ll llvm> /build/llvm-src-20.1.5/llvm/test/CodeGen/Hexagon/isel/pfalse-v4i1.ll:3:10: error: CHECK: expected string not found in input llvm> ; CHECK: [[R0:%[0-9]+]]:intregs = A2_tfrsi 0 llvm> ^ llvm> <stdin>:1:1: note: scanning from here llvm> llc: Unknown command line argument '-debug-only=isel'. Try: '/build/llvm-src-20.1.5/llvm/build/bin/llc --help' llvm> ^ llvm> <stdin>:1:22: note: possible intended match here llvm> llc: Unknown command line argument '-debug-only=isel'. Try: '/build/llvm-src-20.1.5/llvm/build/bin/llc --help' llvm> ^ llvm> llvm> Input file: <stdin> llvm> Check file: /build/llvm-src-20.1.5/llvm/test/CodeGen/Hexagon/isel/pfalse-v4i1.ll llvm> llvm> -dump-input=help explains the following input dump. llvm> llvm> Input was: llvm> <<<<<< llvm> 1: llc: Unknown command line argument '-debug-only=isel'. Try: '/build/llvm-src-20.1.5/llvm/build/bin/llc --help' llvm> check:3'0 X~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ error: no match found llvm> check:3'1 ? possible intended match llvm> 2: llc: Did you mean '--debug-pass=isel'? llvm> check:3'0 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ llvm> >>>>>> llvm> llvm> -- llvm> llvm> ******************** llvm> ******************** llvm> Failed Tests (1): llvm> LLVM :: CodeGen/Hexagon/isel/pfalse-v4i1.ll llvm> llvm> llvm> Testing Time: 115.02s llvm> llvm> Total Discovered Tests: 65162 llvm> Skipped : 20 (0.03%) llvm> Unsupported : 2238 (3.43%) llvm> Passed : 62710 (96.24%) llvm> Expectedly Failed: 193 (0.30%) llvm> Failed : 1 (0.00%) ```

[omjavaid]

I can see same issue on 20.1.5 LLVM Arm v7 Linux release build.

[svs-quic]

dyung@340d199 needs to be backported to fix this

[frederick-vs-ja]

#139822 possibly fixes this.

[RossComputerGuy]

That PR does indeed fix the test failure.