[llvm] [DA] Check for overflow in strong SIV test (PR #164704)

Fri Oct 31 10:49:58 PDT 2025

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/27095

<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)
...
  Passed           : 47614 (97.46%)
  Expectedly Failed:    26 (0.05%)
[1453/1455] Linking CXX executable unittests/Transforms/Scalar/ScalarTests
[1454/1455] Running the LLVM regression tests
llvm-lit: /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/utils/lit/lit/llvm/config.py:531: note: using ld.lld: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-7d9d3ezh/bin/ld.lld
llvm-lit: /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/utils/lit/lit/llvm/config.py:531: note: using lld-link: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-7d9d3ezh/bin/lld-link
llvm-lit: /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/utils/lit/lit/llvm/config.py:531: note: using ld64.lld: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-7d9d3ezh/bin/ld64.lld
llvm-lit: /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/utils/lit/lit/llvm/config.py:531: note: using wasm-ld: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-7d9d3ezh/bin/wasm-ld
-- Testing: 61908 tests, 60 workers --
Testing: 
FAIL: LLVM :: Analysis/DependenceAnalysis/strong-siv-overflow.ll (725 of 61908)
******************** TEST 'LLVM :: Analysis/DependenceAnalysis/strong-siv-overflow.ll' FAILED ********************
Exit Code: 1

Command Output (stdout):
--
# RUN: at line 2
/var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-7d9d3ezh/bin/opt < /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/test/Analysis/DependenceAnalysis/strong-siv-overflow.ll -disable-output "-passes=print<da>" 2>&1      | /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-7d9d3ezh/bin/FileCheck /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/test/Analysis/DependenceAnalysis/strong-siv-overflow.ll --check-prefixes=CHECK,CHECK-ALL
# executed command: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-7d9d3ezh/bin/opt -disable-output '-passes=print<da>'
# executed command: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-7d9d3ezh/bin/FileCheck /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/test/Analysis/DependenceAnalysis/strong-siv-overflow.ll --check-prefixes=CHECK,CHECK-ALL
# RUN: at line 4
/var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-7d9d3ezh/bin/opt < /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/test/Analysis/DependenceAnalysis/strong-siv-overflow.ll -disable-output "-passes=print<da>" -da-enable-dependence-test=strong-siv 2>&1      | /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-7d9d3ezh/bin/FileCheck /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/test/Analysis/DependenceAnalysis/strong-siv-overflow.ll --check-prefixes=CHECK,CHECK-STRONG-SIV
# executed command: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-7d9d3ezh/bin/opt -disable-output '-passes=print<da>' -da-enable-dependence-test=strong-siv
# executed command: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-7d9d3ezh/bin/FileCheck /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/test/Analysis/DependenceAnalysis/strong-siv-overflow.ll --check-prefixes=CHECK,CHECK-STRONG-SIV
# .---command stderr------------
# | /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/test/Analysis/DependenceAnalysis/strong-siv-overflow.ll:25:15: error: CHECK-NEXT: is not on the line after the previous match
# | ; CHECK-NEXT: da analyze - none!
# |               ^
# | <stdin>:7:2: note: 'next' match was here
# |  da analyze - none!
# |  ^
# | <stdin>:4:78: note: previous match ended here
# | Src: store i8 1, ptr %gep.0, align 1 --> Dst: store i8 2, ptr %gep.1, align 1
# |                                                                              ^
# | <stdin>:5:1: note: non-matching line after previous match is here
# |  da analyze - consistent output [1]!
# | ^
# | 
# | Input file: <stdin>
# | Check file: /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/test/Analysis/DependenceAnalysis/strong-siv-overflow.ll
# | 
# | -dump-input=help explains the following input dump.
# | 
# | Input was:
# | <<<<<<
# |          1: Printing analysis 'Dependence Analysis' for function 'strongsiv_const_ovfl': 
# |          2: Src: store i8 1, ptr %gep.0, align 1 --> Dst: store i8 1, ptr %gep.0, align 1 
# |          3:  da analyze - none! 
# |          4: Src: store i8 1, ptr %gep.0, align 1 --> Dst: store i8 2, ptr %gep.1, align 1 
Step 7 (check) failure: check (failure)
...
  Passed           : 47614 (97.46%)
  Expectedly Failed:    26 (0.05%)
[1453/1455] Linking CXX executable unittests/Transforms/Scalar/ScalarTests
[1454/1455] Running the LLVM regression tests
llvm-lit: /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/utils/lit/lit/llvm/config.py:531: note: using ld.lld: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-7d9d3ezh/bin/ld.lld
llvm-lit: /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/utils/lit/lit/llvm/config.py:531: note: using lld-link: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-7d9d3ezh/bin/lld-link
llvm-lit: /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/utils/lit/lit/llvm/config.py:531: note: using ld64.lld: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-7d9d3ezh/bin/ld64.lld
llvm-lit: /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/utils/lit/lit/llvm/config.py:531: note: using wasm-ld: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-7d9d3ezh/bin/wasm-ld
-- Testing: 61908 tests, 60 workers --
Testing: 
FAIL: LLVM :: Analysis/DependenceAnalysis/strong-siv-overflow.ll (725 of 61908)
******************** TEST 'LLVM :: Analysis/DependenceAnalysis/strong-siv-overflow.ll' FAILED ********************
Exit Code: 1

Command Output (stdout):
--
# RUN: at line 2
/var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-7d9d3ezh/bin/opt < /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/test/Analysis/DependenceAnalysis/strong-siv-overflow.ll -disable-output "-passes=print<da>" 2>&1      | /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-7d9d3ezh/bin/FileCheck /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/test/Analysis/DependenceAnalysis/strong-siv-overflow.ll --check-prefixes=CHECK,CHECK-ALL
# executed command: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-7d9d3ezh/bin/opt -disable-output '-passes=print<da>'
# executed command: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-7d9d3ezh/bin/FileCheck /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/test/Analysis/DependenceAnalysis/strong-siv-overflow.ll --check-prefixes=CHECK,CHECK-ALL
# RUN: at line 4
/var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-7d9d3ezh/bin/opt < /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/test/Analysis/DependenceAnalysis/strong-siv-overflow.ll -disable-output "-passes=print<da>" -da-enable-dependence-test=strong-siv 2>&1      | /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-7d9d3ezh/bin/FileCheck /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/test/Analysis/DependenceAnalysis/strong-siv-overflow.ll --check-prefixes=CHECK,CHECK-STRONG-SIV
# executed command: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-7d9d3ezh/bin/opt -disable-output '-passes=print<da>' -da-enable-dependence-test=strong-siv
# executed command: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-7d9d3ezh/bin/FileCheck /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/test/Analysis/DependenceAnalysis/strong-siv-overflow.ll --check-prefixes=CHECK,CHECK-STRONG-SIV
# .---command stderr------------
# | /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/test/Analysis/DependenceAnalysis/strong-siv-overflow.ll:25:15: error: CHECK-NEXT: is not on the line after the previous match
# | ; CHECK-NEXT: da analyze - none!
# |               ^
# | <stdin>:7:2: note: 'next' match was here
# |  da analyze - none!
# |  ^
# | <stdin>:4:78: note: previous match ended here
# | Src: store i8 1, ptr %gep.0, align 1 --> Dst: store i8 2, ptr %gep.1, align 1
# |                                                                              ^
# | <stdin>:5:1: note: non-matching line after previous match is here
# |  da analyze - consistent output [1]!
# | ^
# | 
# | Input file: <stdin>
# | Check file: /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/test/Analysis/DependenceAnalysis/strong-siv-overflow.ll
# | 
# | -dump-input=help explains the following input dump.
# | 
# | Input was:
# | <<<<<<
# |          1: Printing analysis 'Dependence Analysis' for function 'strongsiv_const_ovfl': 
# |          2: Src: store i8 1, ptr %gep.0, align 1 --> Dst: store i8 1, ptr %gep.0, align 1 
# |          3:  da analyze - none! 
# |          4: Src: store i8 1, ptr %gep.0, align 1 --> Dst: store i8 2, ptr %gep.1, align 1 

```

</details>

https://github.com/llvm/llvm-project/pull/164704