[llvm] [SLP] Enable full non-power-of-2 vectorization by default (PR #196825)
via llvm-commits
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Sun May 10 11:57:36 PDT 2026
github-actions[bot] wrote:
<!--PREMERGE ADVISOR COMMENT: Windows-->
# :window: Windows x64 Test Results
* 134501 tests passed
* 3259 tests skipped
* 1 test failed
## Failed Tests
(click on a test name to see its output)
### LLVM
<details>
<summary>LLVM.CodeGen/WebAssembly/slp-memory-interleave.ll</summary>
```
Exit Code: 1
Command Output (stdout):
--
# RUN: at line 1
c:\_work\llvm-project\llvm-project\build\bin\opt.exe -mtriple=wasm32 -mattr=+simd128 -passes=slp-vectorizer C:\_work\llvm-project\llvm-project\llvm\test\CodeGen\WebAssembly\slp-memory-interleave.ll | c:\_work\llvm-project\llvm-project\build\bin\llc.exe -mtriple=wasm32 -mattr=+simd128 -asm-verbose=false -disable-wasm-fallthrough-return-opt | c:\_work\llvm-project\llvm-project\build\bin\filecheck.exe C:\_work\llvm-project\llvm-project\llvm\test\CodeGen\WebAssembly\slp-memory-interleave.ll
# executed command: 'c:\_work\llvm-project\llvm-project\build\bin\opt.exe' -mtriple=wasm32 -mattr=+simd128 -passes=slp-vectorizer 'C:\_work\llvm-project\llvm-project\llvm\test\CodeGen\WebAssembly\slp-memory-interleave.ll'
# note: command had no output on stdout or stderr
# executed command: 'c:\_work\llvm-project\llvm-project\build\bin\llc.exe' -mtriple=wasm32 -mattr=+simd128 -asm-verbose=false -disable-wasm-fallthrough-return-opt
# note: command had no output on stdout or stderr
# executed command: 'c:\_work\llvm-project\llvm-project\build\bin\filecheck.exe' 'C:\_work\llvm-project\llvm-project\llvm\test\CodeGen\WebAssembly\slp-memory-interleave.ll'
# .---command stderr------------
# | C:\_work\llvm-project\llvm-project\llvm\test\CodeGen\WebAssembly\slp-memory-interleave.ll:104:10: error: CHECK: expected string not found in input
# | ; CHECK: v128.load32_zero
# | ^
# | <stdin>:162:6: note: scanning from here
# | loop
# | ^
# | <stdin>:179:2: note: possible intended match here
# | i32.load8_s 0
# | ^
# | C:\_work\llvm-project\llvm-project\llvm\test\CodeGen\WebAssembly\slp-memory-interleave.ll:181:10: error: CHECK: expected string not found in input
# | ; CHECK: v128.load32_zero
# | ^
# | <stdin>:264:6: note: scanning from here
# | loop
# | ^
# | <stdin>:281:2: note: possible intended match here
# | i32.load8_s 0
# | ^
# |
# | Input file: <stdin>
# | Check file: C:\_work\llvm-project\llvm-project\llvm\test\CodeGen\WebAssembly\slp-memory-interleave.ll
# |
# | -dump-input=help explains the following input dump.
# |
# | Input was:
# | <<<<<<
# | .
# | .
# | .
# | 157: local.get 0
# | 158: v128.load64_zero 4:p2align=2
# | 159: v128.load32_lane 12, 2
# | 160: local.set 5
# | 161: .LBB2_2:
# | 162: loop
# | check:104'0 X~ error: no match found
# | 163: local.get 1
# | check:104'0 ~~~~~~~~~~~~~
# | 164: i32.const 1
# | check:104'0 ~~~~~~~~~~~~~
# | 165: i32.add
# | check:104'0 ~~~~~~~~~~
# | 166: i32.load16_u 0:p2align=0
# | check:104'0 ~~~~~~~~~~~~~~~~~~~~~~~~~~
# | 167: i16x8.splat
# | check:104'0 ~~~~~~~~~~~~~
# | .
# | .
# | .
# | 174: f32.convert_i32_s
# | check:104'0 ~~~~~~~~~~~~~~~~~~~
# | 175: f32x4.replace_lane 1
# | check:104'0 ~~~~~~~~~~~~~~~~~~~~~~
# | 176: local.get 1
# | check:104'0 ~~~~~~~~~~~~~
# | 177: i32.const 3
# | check:104'0 ~~~~~~~~~~~~~
# | 178: i32.add
# | check:104'0 ~~~~~~~~~~
# | 179: i32.load8_s 0
# | check:104'0 ~~~~~~~~~~~~~~~
# | check:104'1 ? possible intended match
# | 180: f32.convert_i32_s
# | check:104'0 ~~~~~~~~~~~~~~~~~~~
# | 181: f32x4.replace_lane 2
# | check:104'0 ~~~~~~~~~~~~~~~~~~~~~~
# | 182: local.get 2
# | check:104'0 ~~~~~~~~~~~~~
# | 183: i32.const 1
# | check:104'0 ~~~~~~~~~~~~~
# | 184: i32.add
# | check:104'0 ~~~~~~~~~~
# | .
# | .
# | .
# | 259: local.get 0
# | 260: v128.load64_zero 4:p2align=2
# | 261: v128.load32_lane 12, 2
# | 262: local.set 5
# | 263: .LBB3_2:
# | 264: loop
# | check:181'0 X~ error: no match found
# | 265: local.get 1
# | check:181'0 ~~~~~~~~~~~~~
# | 266: i32.const 1
# | check:181'0 ~~~~~~~~~~~~~
# | 267: i32.add
# | check:181'0 ~~~~~~~~~~
# | 268: i32.load16_u 0:p2align=0
# | check:181'0 ~~~~~~~~~~~~~~~~~~~~~~~~~~
# | 269: i16x8.splat
# | check:181'0 ~~~~~~~~~~~~~
# | .
# | .
# | .
# | 276: f32.convert_i32_s
# | check:181'0 ~~~~~~~~~~~~~~~~~~~
# | 277: f32x4.replace_lane 1
# | check:181'0 ~~~~~~~~~~~~~~~~~~~~~~
# | 278: local.get 1
# | check:181'0 ~~~~~~~~~~~~~
# | 279: i32.const 3
# | check:181'0 ~~~~~~~~~~~~~
# | 280: i32.add
# | check:181'0 ~~~~~~~~~~
# | 281: i32.load8_s 0
# | check:181'0 ~~~~~~~~~~~~~~~
# | check:181'1 ? possible intended match
# | 282: f32.convert_i32_s
# | check:181'0 ~~~~~~~~~~~~~~~~~~~
# | 283: f32x4.replace_lane 2
# | check:181'0 ~~~~~~~~~~~~~~~~~~~~~~
# | 284: local.get 2
# | check:181'0 ~~~~~~~~~~~~~
# | 285: i32.const 1
# | check:181'0 ~~~~~~~~~~~~~
# | 286: i32.add
# | check:181'0 ~~~~~~~~~~
# | .
# | .
# | .
# | >>>>>>
# `-----------------------------
# 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/196825
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