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Revert "[X86] matchBinaryPermuteShuffle - match to X86ISD::SHLD funnel shift patterns"#200546

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RKSimon merged 1 commit into
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revert-200136-x86-shuffle-shld
May 30, 2026
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Revert "[X86] matchBinaryPermuteShuffle - match to X86ISD::SHLD funnel shift patterns"#200546
RKSimon merged 1 commit into
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revert-200136-x86-shuffle-shld

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@RKSimon RKSimon commented May 30, 2026

Reverts #200136 while I investigate a miscompilation report

@RKSimon RKSimon added the skip-precommit-approval PR for CI feedback, not intended for review label May 30, 2026
@RKSimon RKSimon enabled auto-merge (squash) May 30, 2026 07:11
@RKSimon RKSimon merged commit 9e3c184 into main May 30, 2026
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@RKSimon RKSimon deleted the revert-200136-x86-shuffle-shld branch May 30, 2026 07:52
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llvm-ci commented May 30, 2026

LLVM Buildbot has detected a new failure on builder ml-opt-devrel-x86-64 running on ml-opt-devrel-x86-64-b2 while building llvm at step 4 "cmake-configure".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/175/builds/39667

Here is the relevant piece of the build log for the reference
Step 4 (cmake-configure) failure: cmake (failure)
...
    "/usr/bin/gcc"

  is not able to compile a simple test program.

  It fails with the following output:

    Change Dir: /b/ml-opt-devrel-x86-64-b1/build/CMakeFiles/CMakeScratch/TryCompile-Wi5w3Y
    
    Run Build Command(s):/usr/bin/ninja cmTC_bff20 && [1/2] Building C object CMakeFiles/cmTC_bff20.dir/testCCompiler.c.o
    [2/2] Linking C executable cmTC_bff20
    FAILED: cmTC_bff20 
    : && /usr/bin/gcc   CMakeFiles/cmTC_bff20.dir/testCCompiler.c.o -o cmTC_bff20   && :
    collect2: fatal error: cannot find ‘ld’
    compilation terminated.
    ninja: build stopped: subcommand failed.
    
    

  

  CMake will not be able to correctly generate this project.
Call Stack (most recent call first):
  CMakeLists.txt:70 (project)


-- Configuring incomplete, errors occurred!
See also "/b/ml-opt-devrel-x86-64-b1/build/CMakeFiles/CMakeOutput.log".
See also "/b/ml-opt-devrel-x86-64-b1/build/CMakeFiles/CMakeError.log".

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