[llvm] [RISCV] Add load/store clustering in post machine schedule (PR #111504)

Wed Nov 6 00:54:09 PST 2024

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `fuchsia-x86_64-linux` running on `fuchsia-debian-64-us-central1-a-1` while building `llvm` at step 4 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/11/builds/7711

<details>
<summary>Here is the relevant piece of the build log for the reference</summary>

```
Step 4 (annotate) failure: 'python ../llvm-zorg/zorg/buildbot/builders/annotated/fuchsia-linux.py ...' (failure)
...
[1339/1344] Building CXX object unittests/Transforms/Scalar/CMakeFiles/ScalarTests.dir/LoopPassManagerTest.cpp.o
clang++: warning: optimization flag '-ffat-lto-objects' is not supported [-Wignored-optimization-argument]
[1340/1344] Linking CXX executable unittests/Transforms/Scalar/ScalarTests
[1340/1344] Running the LLVM regression tests
llvm-lit: /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/utils/lit/lit/llvm/config.py:506: note: using ld.lld: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-5jw6xz06/bin/ld.lld
llvm-lit: /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/utils/lit/lit/llvm/config.py:506: note: using lld-link: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-5jw6xz06/bin/lld-link
llvm-lit: /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/utils/lit/lit/llvm/config.py:506: note: using ld64.lld: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-5jw6xz06/bin/ld64.lld
llvm-lit: /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/utils/lit/lit/llvm/config.py:506: note: using wasm-ld: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-5jw6xz06/bin/wasm-ld
-- Testing: 56722 tests, 60 workers --
Testing:  0.. 10.. 20.. 30
FAIL: LLVM :: CodeGen/RISCV/misched-mem-clustering.mir (18365 of 56722)
******************** TEST 'LLVM :: CodeGen/RISCV/misched-mem-clustering.mir' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
RUN: at line 2: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-5jw6xz06/bin/llc -mtriple=riscv64 -x mir -mcpu=sifive-p470 -verify-misched -enable-post-misched=false      -riscv-postmisched-load-store-clustering=false -debug-only=machine-scheduler      -start-before=machine-scheduler -stop-after=postmisched -o - 2>&1 < /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/test/CodeGen/RISCV/misched-mem-clustering.mir    | /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-5jw6xz06/bin/FileCheck -check-prefix=NOPOSTMISCHED /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/test/CodeGen/RISCV/misched-mem-clustering.mir
+ /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-5jw6xz06/bin/llc -mtriple=riscv64 -x mir -mcpu=sifive-p470 -verify-misched -enable-post-misched=false -riscv-postmisched-load-store-clustering=false -debug-only=machine-scheduler -start-before=machine-scheduler -stop-after=postmisched -o -
+ /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-5jw6xz06/bin/FileCheck -check-prefix=NOPOSTMISCHED /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/test/CodeGen/RISCV/misched-mem-clustering.mir
/var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/test/CodeGen/RISCV/misched-mem-clustering.mir:22:25: error: NOPOSTMISCHED-LABEL: expected string not found in input
 ; NOPOSTMISCHED-LABEL: name: mem_clustering_1
                        ^
<stdin>:1:1: note: scanning from here
llc: Unknown command line argument '-debug-only=machine-scheduler'. Try: '/var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-5jw6xz06/bin/llc --help'
^
<stdin>:2:38: note: possible intended match here
llc: Did you mean '--debug-pass=machine-scheduler'?
                                     ^

Input file: <stdin>
Check file: /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/test/CodeGen/RISCV/misched-mem-clustering.mir

-dump-input=help explains the following input dump.

Input was:
<<<<<<
            1: llc: Unknown command line argument '-debug-only=machine-scheduler'. Try: '/var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-5jw6xz06/bin/llc --help' 
label:22'0     X~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ error: no match found
            2: llc: Did you mean '--debug-pass=machine-scheduler'? 
label:22'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
label:22'1                                          ?               possible intended match
>>>>>>

--

********************
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90.. 
********************
Failed Tests (1):
Step 7 (check) failure: check (failure)
...
[1339/1344] Building CXX object unittests/Transforms/Scalar/CMakeFiles/ScalarTests.dir/LoopPassManagerTest.cpp.o
clang++: warning: optimization flag '-ffat-lto-objects' is not supported [-Wignored-optimization-argument]
[1340/1344] Linking CXX executable unittests/Transforms/Scalar/ScalarTests
[1340/1344] Running the LLVM regression tests
llvm-lit: /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/utils/lit/lit/llvm/config.py:506: note: using ld.lld: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-5jw6xz06/bin/ld.lld
llvm-lit: /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/utils/lit/lit/llvm/config.py:506: note: using lld-link: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-5jw6xz06/bin/lld-link
llvm-lit: /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/utils/lit/lit/llvm/config.py:506: note: using ld64.lld: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-5jw6xz06/bin/ld64.lld
llvm-lit: /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/utils/lit/lit/llvm/config.py:506: note: using wasm-ld: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-5jw6xz06/bin/wasm-ld
-- Testing: 56722 tests, 60 workers --
Testing:  0.. 10.. 20.. 30
FAIL: LLVM :: CodeGen/RISCV/misched-mem-clustering.mir (18365 of 56722)
******************** TEST 'LLVM :: CodeGen/RISCV/misched-mem-clustering.mir' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
RUN: at line 2: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-5jw6xz06/bin/llc -mtriple=riscv64 -x mir -mcpu=sifive-p470 -verify-misched -enable-post-misched=false      -riscv-postmisched-load-store-clustering=false -debug-only=machine-scheduler      -start-before=machine-scheduler -stop-after=postmisched -o - 2>&1 < /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/test/CodeGen/RISCV/misched-mem-clustering.mir    | /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-5jw6xz06/bin/FileCheck -check-prefix=NOPOSTMISCHED /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/test/CodeGen/RISCV/misched-mem-clustering.mir
+ /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-5jw6xz06/bin/llc -mtriple=riscv64 -x mir -mcpu=sifive-p470 -verify-misched -enable-post-misched=false -riscv-postmisched-load-store-clustering=false -debug-only=machine-scheduler -start-before=machine-scheduler -stop-after=postmisched -o -
+ /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-5jw6xz06/bin/FileCheck -check-prefix=NOPOSTMISCHED /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/test/CodeGen/RISCV/misched-mem-clustering.mir
/var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/test/CodeGen/RISCV/misched-mem-clustering.mir:22:25: error: NOPOSTMISCHED-LABEL: expected string not found in input
 ; NOPOSTMISCHED-LABEL: name: mem_clustering_1
                        ^
<stdin>:1:1: note: scanning from here
llc: Unknown command line argument '-debug-only=machine-scheduler'. Try: '/var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-5jw6xz06/bin/llc --help'
^
<stdin>:2:38: note: possible intended match here
llc: Did you mean '--debug-pass=machine-scheduler'?
                                     ^

Input file: <stdin>
Check file: /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/test/CodeGen/RISCV/misched-mem-clustering.mir

-dump-input=help explains the following input dump.

Input was:
<<<<<<
            1: llc: Unknown command line argument '-debug-only=machine-scheduler'. Try: '/var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-5jw6xz06/bin/llc --help' 
label:22'0     X~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ error: no match found
            2: llc: Did you mean '--debug-pass=machine-scheduler'? 
label:22'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
label:22'1                                          ?               possible intended match
>>>>>>

--

********************
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90.. 
********************
Failed Tests (1):

```

</details>

https://github.com/llvm/llvm-project/pull/111504