[all-commits] [llvm/llvm-project] 8be4bd: [libcxxabi] Fix the long double demangling for Pow...

[Martin Storsjö via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 8be4bd85708cddc8d84d03cf77ba4b02d0b6d44c
      https://github.com/llvm/llvm-project/commit/8be4bd85708cddc8d84d03cf77ba4b02d0b6d44c
  Author: Martin Storsjö <martin at martin.st>
  Date:   2025-04-11 (Fri, 11 Apr 2025)

  Changed paths:
    M libcxxabi/src/demangle/ItaniumDemangle.h

  Log Message:
  -----------
  [libcxxabi] Fix the long double demangling for PowerPC (#135332)

PowerPC uses a slightly different type of floats for their 128 bit long
doubles, as "double-double", with __LDBL_MANT_DIG__ == 106 rather than
__LDBL_MANT_DIG__ == 113 for IEEE 128 bit floats.

This fixes compiling libcxxabi for PowerPC after
3b70715c13876c51542ebfe2e3f4ee908f6785cb.



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