[llvm] Revert "[InstCombine] Folding `(icmp eq/ne (and X, -P2), INT_MIN)`" (PR #111236)

LLVM Continuous Integration via llvm-commits llvm-commits at lists.llvm.org
Fri Oct 4 23:54:46 PDT 2024


llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `llvm-nvptx-nvidia-win` running on `as-builder-8` while building `llvm` at step 7 "test-build-unified-tree-check-llvm".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/54/builds/2874

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

```
Step 7 (test-build-unified-tree-check-llvm) failure: test (failure)
******************** TEST 'LLVM :: Transforms/InstCombine/and-or-icmps.ll' FAILED ********************
Exit Code: 1

Command Output (stdout):
--
# RUN: at line 2
c:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\build\bin\opt.exe < C:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\llvm-project\llvm\test\Transforms\InstCombine\and-or-icmps.ll -passes=instcombine -S | c:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\build\bin\filecheck.exe C:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\llvm-project\llvm\test\Transforms\InstCombine\and-or-icmps.ll
# executed command: 'c:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\build\bin\opt.exe' -passes=instcombine -S
# executed command: 'c:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\build\bin\filecheck.exe' 'C:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\llvm-project\llvm\test\Transforms\InstCombine\and-or-icmps.ll'
# .---command stderr------------
# | C:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\llvm-project\llvm\test\Transforms\InstCombine\and-or-icmps.ll:3338:15: error: CHECK-NEXT: expected string not found in input
# | ; CHECK-NEXT: [[AND2:%.*]] = icmp slt i8 [[X:%.*]], -126
# |               ^
# | <stdin>:1604:28: note: scanning from here
# | define i1 @and_slt_to_mask(i8 %x) {
# |                            ^
# | <stdin>:1606:2: note: possible intended match here
# |  %and2 = icmp eq i8 %1, -128
# |  ^
# | 
# | Input file: <stdin>
# | Check file: C:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\llvm-project\llvm\test\Transforms\InstCombine\and-or-icmps.ll
# | 
# | -dump-input=help explains the following input dump.
# | 
# | Input was:
# | <<<<<<
# |              .
# |              .
# |              .
# |           1599:  %cp2 = icmp sle i8 %x, %pow2orz 
# |           1600:  %r = or i1 %c0, %cp2 
# |           1601:  ret i1 %r 
# |           1602: } 
# |           1603:  
# |           1604: define i1 @and_slt_to_mask(i8 %x) { 
# | next:3338'0                                X~~~~~~~~ error: no match found
# |           1605:  %1 = and i8 %x, -2 
# | next:3338'0     ~~~~~~~~~~~~~~~~~~~~
# |           1606:  %and2 = icmp eq i8 %1, -128 
# | next:3338'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# | next:3338'1      ?                            possible intended match
# |           1607:  ret i1 %and2 
# | next:3338'0     ~~~~~~~~~~~~~~
# |           1608: } 
# | next:3338'0     ~~
# |           1609:  
# | next:3338'0     ~
# |           1610: define i1 @and_slt_to_mask_off_by_one(i8 %x) { 
# | next:3338'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
...

```

</details>

https://github.com/llvm/llvm-project/pull/111236


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