[llvm] [AArch64][SelectionDAG][Peephole] Only fold into ands directly if AND is one-use (PR #191586)
via llvm-commits
llvm-commits at lists.llvm.org
Fri Apr 10 19:51:05 PDT 2026
github-actions[bot] wrote:
<!--PREMERGE ADVISOR COMMENT: Linux-->
# :penguin: Linux x64 Test Results
* 172449 tests passed
* 3138 tests skipped
* 4 tests failed
## Failed Tests
(click on a test name to see its output)
### LLVM
<details>
<summary>LLVM.CodeGen/AArch64/masked-sdiv-fixed-length.ll</summary>
```
Exit Code: 1
Command Output (stdout):
--
# RUN: at line 2
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc -mtriple aarch64 < /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/masked-sdiv-fixed-length.ll | /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/masked-sdiv-fixed-length.ll --check-prefix=NEON
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc -mtriple aarch64
# 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/masked-sdiv-fixed-length.ll --check-prefix=NEON
# .---command stderr------------
# | /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/masked-sdiv-fixed-length.ll:266:14: error: NEON-NEXT: expected string not found in input
# | ; NEON-NEXT: fmov w8, s0
# | ^
# | <stdin>:186:37: note: scanning from here
# | // kill: def $d0 killed $d0 def $q0
# | ^
# | <stdin>:187:2: note: possible intended match here
# | fmov w9, s0
# | ^
# |
# | Input file: <stdin>
# | Check file: /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/masked-sdiv-fixed-length.ll
# |
# | -dump-input=help explains the following input dump.
# |
# | Input was:
# | <<<<<<
# | .
# | .
# | .
# | 181: .p2align 2
# | 182: .type sdiv_v2i128, at function
# | 183: sdiv_v2i128: // @sdiv_v2i128
# | 184: // %bb.0:
# | 185: stp x30, x25, [sp, #-64]! // 16-byte Folded Spill
# | 186: // kill: def $d0 killed $d0 def $q0
# | next:266'0 X error: no match found
# | 187: fmov w9, s0
# | next:266'0 ~~~~~~~~~~~~~
# | next:266'1 ? possible intended match
# | 188: mov w8, v0.s[1]
# | next:266'0 ~~~~~~~~~~~~~~~~~
# | 189: stp x22, x21, [sp, #32] // 16-byte Folded Spill
# | next:266'0 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# | 190: mov x21, x3
# | next:266'0 ~~~~~~~~~~~~~
# | 191: mov x22, x2
# | next:266'0 ~~~~~~~~~~~~~
# | 192: stp x24, x23, [sp, #16] // 16-byte Folded Spill
# | next:266'0 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# | .
# | .
# | .
# | >>>>>>
# `-----------------------------
# error: command failed with exit status: 1
--
```
</details>
<details>
<summary>LLVM.CodeGen/AArch64/masked-srem-fixed-length.ll</summary>
```
Exit Code: 1
Command Output (stdout):
--
# RUN: at line 2
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc -mtriple aarch64 < /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/masked-srem-fixed-length.ll | /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/masked-srem-fixed-length.ll --check-prefix=NEON
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc -mtriple aarch64
# 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/masked-srem-fixed-length.ll --check-prefix=NEON
# .---command stderr------------
# | /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/masked-srem-fixed-length.ll:295:14: error: NEON-NEXT: expected string not found in input
# | ; NEON-NEXT: fmov w8, s0
# | ^
# | <stdin>:203:37: note: scanning from here
# | // kill: def $d0 killed $d0 def $q0
# | ^
# | <stdin>:204:2: note: possible intended match here
# | fmov w9, s0
# | ^
# |
# | Input file: <stdin>
# | Check file: /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/masked-srem-fixed-length.ll
# |
# | -dump-input=help explains the following input dump.
# |
# | Input was:
# | <<<<<<
# | .
# | .
# | .
# | 198: .p2align 2
# | 199: .type srem_v2i128, at function
# | 200: srem_v2i128: // @srem_v2i128
# | 201: // %bb.0:
# | 202: stp x30, x25, [sp, #-64]! // 16-byte Folded Spill
# | 203: // kill: def $d0 killed $d0 def $q0
# | next:295'0 X error: no match found
# | 204: fmov w9, s0
# | next:295'0 ~~~~~~~~~~~~~
# | next:295'1 ? possible intended match
# | 205: mov w8, v0.s[1]
# | next:295'0 ~~~~~~~~~~~~~~~~~
# | 206: stp x22, x21, [sp, #32] // 16-byte Folded Spill
# | next:295'0 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# | 207: mov x21, x3
# | next:295'0 ~~~~~~~~~~~~~
# | 208: mov x22, x2
# | next:295'0 ~~~~~~~~~~~~~
# | 209: stp x24, x23, [sp, #16] // 16-byte Folded Spill
# | next:295'0 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# | .
# | .
# | .
# | >>>>>>
# `-----------------------------
# error: command failed with exit status: 1
--
```
</details>
<details>
<summary>LLVM.CodeGen/AArch64/masked-udiv-fixed-length.ll</summary>
```
Exit Code: 1
Command Output (stdout):
--
# RUN: at line 2
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc -mtriple aarch64 < /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/masked-udiv-fixed-length.ll | /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/masked-udiv-fixed-length.ll --check-prefix=NEON
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc -mtriple aarch64
# 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/masked-udiv-fixed-length.ll --check-prefix=NEON
# .---command stderr------------
# | /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/masked-udiv-fixed-length.ll:266:14: error: NEON-NEXT: expected string not found in input
# | ; NEON-NEXT: fmov w8, s0
# | ^
# | <stdin>:186:37: note: scanning from here
# | // kill: def $d0 killed $d0 def $q0
# | ^
# | <stdin>:187:2: note: possible intended match here
# | fmov w9, s0
# | ^
# |
# | Input file: <stdin>
# | Check file: /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/masked-udiv-fixed-length.ll
# |
# | -dump-input=help explains the following input dump.
# |
# | Input was:
# | <<<<<<
# | .
# | .
# | .
# | 181: .p2align 2
# | 182: .type udiv_v2i128, at function
# | 183: udiv_v2i128: // @udiv_v2i128
# | 184: // %bb.0:
# | 185: stp x30, x25, [sp, #-64]! // 16-byte Folded Spill
# | 186: // kill: def $d0 killed $d0 def $q0
# | next:266'0 X error: no match found
# | 187: fmov w9, s0
# | next:266'0 ~~~~~~~~~~~~~
# | next:266'1 ? possible intended match
# | 188: mov w8, v0.s[1]
# | next:266'0 ~~~~~~~~~~~~~~~~~
# | 189: stp x22, x21, [sp, #32] // 16-byte Folded Spill
# | next:266'0 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# | 190: mov x21, x3
# | next:266'0 ~~~~~~~~~~~~~
# | 191: mov x22, x2
# | next:266'0 ~~~~~~~~~~~~~
# | 192: stp x24, x23, [sp, #16] // 16-byte Folded Spill
# | next:266'0 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# | .
# | .
# | .
# | >>>>>>
# `-----------------------------
# error: command failed with exit status: 1
--
```
</details>
<details>
<summary>LLVM.CodeGen/AArch64/masked-urem-fixed-length.ll</summary>
```
Exit Code: 1
Command Output (stdout):
--
# RUN: at line 2
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc -mtriple aarch64 < /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/masked-urem-fixed-length.ll | /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/masked-urem-fixed-length.ll --check-prefix=NEON
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc -mtriple aarch64
# 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/masked-urem-fixed-length.ll --check-prefix=NEON
# .---command stderr------------
# | /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/masked-urem-fixed-length.ll:295:14: error: NEON-NEXT: expected string not found in input
# | ; NEON-NEXT: fmov w8, s0
# | ^
# | <stdin>:203:37: note: scanning from here
# | // kill: def $d0 killed $d0 def $q0
# | ^
# | <stdin>:204:2: note: possible intended match here
# | fmov w9, s0
# | ^
# |
# | Input file: <stdin>
# | Check file: /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/masked-urem-fixed-length.ll
# |
# | -dump-input=help explains the following input dump.
# |
# | Input was:
# | <<<<<<
# | .
# | .
# | .
# | 198: .p2align 2
# | 199: .type urem_v2i128, at function
# | 200: urem_v2i128: // @urem_v2i128
# | 201: // %bb.0:
# | 202: stp x30, x25, [sp, #-64]! // 16-byte Folded Spill
# | 203: // kill: def $d0 killed $d0 def $q0
# | next:295'0 X error: no match found
# | 204: fmov w9, s0
# | next:295'0 ~~~~~~~~~~~~~
# | next:295'1 ? possible intended match
# | 205: mov w8, v0.s[1]
# | next:295'0 ~~~~~~~~~~~~~~~~~
# | 206: stp x22, x21, [sp, #32] // 16-byte Folded Spill
# | next:295'0 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# | 207: mov x21, x3
# | next:295'0 ~~~~~~~~~~~~~
# | 208: mov x22, x2
# | next:295'0 ~~~~~~~~~~~~~
# | 209: stp x24, x23, [sp, #16] // 16-byte Folded Spill
# | next:295'0 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# | .
# | .
# | .
# | >>>>>>
# `-----------------------------
# 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/191586
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