Marge Bot pushed to branch master at Glasgow Haskell Compiler / GHC

Commits:

• 7ee22fd5
  by ARATA Mizuki at 2025-07-17T06:05:30-04:00

  x86 NCG: Better lowering for shuffleFloatX4# and shuffleDoubleX2#
  
  The new implementation
  
  * make use of specialized instructions like (V)UNPCK{L,H}{PS,PD}, and
  * do not require -mavx.
  
  Close #26096
  
  Co-authored-by: sheaf <sam.derbyshire@gmail.com>
  

13 changed files:

• compiler/GHC/CmmToAsm/X86/CodeGen.hs
• compiler/GHC/CmmToAsm/X86/Instr.hs
• compiler/GHC/CmmToAsm/X86/Ppr.hs
• docs/users_guide/9.14.1-notes.rst
• testsuite/tests/simd/should_run/all.T
• + testsuite/tests/simd/should_run/doublex2_shuffle.hs
• + testsuite/tests/simd/should_run/doublex2_shuffle.stdout
• + testsuite/tests/simd/should_run/doublex2_shuffle_baseline.hs
• + testsuite/tests/simd/should_run/doublex2_shuffle_baseline.stdout
• + testsuite/tests/simd/should_run/floatx4_shuffle.hs
• + testsuite/tests/simd/should_run/floatx4_shuffle.stdout
• + testsuite/tests/simd/should_run/floatx4_shuffle_baseline.hs
• + testsuite/tests/simd/should_run/floatx4_shuffle_baseline.stdout

The diff was not included because it is too large.