Cheng Shao pushed to branch wip/symbolizer at Glasgow Haskell Compiler / GHC

Commits:

• 706d33e3
  by Recursion Ninja at 2025-08-15T04:12:12-04:00

  Resolving issues #20645 and #26109
  
  Correctly sign extending and casting smaller bit width types for LLVM operations:
  
    - bitReverse8#
    - bitReverse16#
    - bitReverse32#
    - byteSwap16#
    - byteSwap32#
    - pdep8#
    - pdep16#
    - pext8#
    - pext16#
  

• 1cdc6f46
  by Cheng Shao at 2025-08-15T04:12:56-04:00

  hadrian: enforce have_llvm=False for wasm32/js
  
  This patch fixes hadrian to always pass have_llvm=False to the
  testsuite driver for wasm32/js targets. These targets don't really
  support the LLVM backend, and the optllvm test way doesn't work. We
  used to special-case wasm32/js to avoid auto-adding optllvm way in
  testsuite/config/ghc, but this is still problematic if someone writes
  a new LLVM-related test and uses something like when(have_llvm(),
  extra_ways(["optllvm"])). So better just enforce have_llvm=False for
  these targets here.
  

• 11f9545d
  by Cheng Shao at 2025-08-15T17:29:06+02:00

  rts: remove libbfd logic
  

• 2924dad4
  by Cheng Shao at 2025-08-15T17:29:06+02:00

  compiler/rts: add debug symbolizer
  

32 changed files:

• compiler/GHC/Builtin/primops.txt.pp
• + compiler/GHC/Cmm/GenerateDebugSymbolStub.hs
• compiler/GHC/CmmToLlvm/CodeGen.hs
• compiler/GHC/Driver/CodeOutput.hs
• compiler/GHC/Driver/Main.hs
• compiler/ghc.cabal.in
• configure.ac
• hadrian/cfg/system.config.in
• hadrian/src/Oracles/Flag.hs
• hadrian/src/Settings/Builders/RunTest.hs
• hadrian/src/Settings/Packages.hs
• libraries/ghc-internal/cbits/pdep.c
• libraries/ghc-internal/cbits/pext.c
• − m4/fp_bfd_support.m4
• rts/Printer.c
• rts/Printer.h
• rts/RtsStartup.c
• rts/configure.ac
• rts/include/Rts.h
• rts/include/rts/Config.h
• + rts/include/rts/Debug.h
• rts/rts.cabal
• testsuite/config/ghc
• + testsuite/tests/llvm/should_run/T20645.hs
• + testsuite/tests/llvm/should_run/T20645.stdout
• testsuite/tests/llvm/should_run/all.T
• testsuite/tests/numeric/should_run/foundation.hs
• utils/genprimopcode/Lexer.x
• utils/genprimopcode/Main.hs
• utils/genprimopcode/Parser.y
• utils/genprimopcode/ParserM.hs
• utils/genprimopcode/Syntax.hs

The diff was not included because it is too large.