[all-commits] [llvm/llvm-project] c14879: Unbreak *tf builtins for hexfloat (#82208)

[Alexander Richardson via All-commits]

  Branch: refs/heads/release/18.x
  Home:   https://github.com/llvm/llvm-project
  Commit: c14879562f46c9a5b24af8e21e8df0eef3079d4a
      https://github.com/llvm/llvm-project/commit/c14879562f46c9a5b24af8e21e8df0eef3079d4a
  Author: Alexander Richardson <alexrichardson at google.com>
  Date:   2024-03-12 (Tue, 12 Mar 2024)

  Changed paths:
    M compiler-rt/lib/builtins/divtc3.c
    M compiler-rt/lib/builtins/fp_lib.h
    M compiler-rt/lib/builtins/int_types.h
    M compiler-rt/lib/builtins/multc3.c

  Log Message:
  -----------
  Unbreak *tf builtins for hexfloat (#82208)

This re-lands cc0065a7d082f0bd322a538cf62cfaef1c8f89f8 in a way that
keeps existing targets working.

---------

Original commit message:
#68132 ended up removing
__multc3 & __divtc3 from compiler-rt library builds that have
QUAD_PRECISION but not TF_MODE due to missing int128 support.
I added support for QUAD_PRECISION to use the native hex float long double representation.

---------

Co-authored-by: Sean Perry <perry at ca.ibm.com>
(cherry picked from commit 99c457dc2ef395872d7448c85609f6cb73a7f89b)



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